Employer tax ID numbers
The account numbers each state issues to an employer for payroll taxes (income tax withholding, unemployment insurance, paid leave and disability, other state payroll taxes): what each is called, its layout, who issues it and where to find it, from the agencies' own pages.
Layout: 9 is a digit, A is a letter, other characters are shown as the agency writes them. No real account numbers appear on this site.
How each number is obtained and where to find it are on each state's page (click the state).
| State | Tax | Number | Layout | Issued by | Source |
|---|---|---|---|---|---|
| Alabama | Income tax withholding | Withholding tax account number (Alabama Withholding Tax Account Number) | R999999999 or 9999999999New numbers: 10 characters, the letter R followed by nine digits. The Department says "New account numbers assigned will consist of 10 alphanumeric characters beginning with an 'R.'" Form 10 (W-2 file specifications) says numbers 700000 and above are "R followed by nine digits", and numbers below 700000 are right justified and zero filled to the 10-position field. source Public record | Alabama Department of Revenue | source Public record |
| Alabama | Unemployment insurance | UC account number (Alabama Employer Account Number, EAN) | 999999999910 digits. The Department of Workforce says "All UC account numbers are 10 digits" and that no punctuation is allowed in UC account numbers in wage files. | Alabama Department of Workforce (formerly Alabama Department of Labor), Unemployment Compensation tax | source Public record |
| Alaska | Unemployment insurance | Alaska Employer Account Number | 9999999 or 999999 or 999995, 6 or 7 digits. The Department's CSV wage file specifications say "Alaska employer account numbers are 5, 6 or 7 numeric digits" and "Leading zeros are not necessary" (the field allows up to 8 characters). | Alaska Department of Labor and Workforce Development, Division of Employment and Training Services, Employment Security Tax | source Public record |
| Arizona | Income tax withholding | Withholding ID number (the employer's federal EIN) | 999999999The 9-digit federal EIN. ADOR: "Once registered with ADOR, the business' withholding ID number with the Arizona Department of Revenue is the company's EIN." ADOR's AZ Web File (AZFSET) guide describes the Taxpayer ID as "The 9 Digit identification number of the Taxpayer", with EIN the only ID type. source Public record | Internal Revenue Service (the EIN); registered with and used by the Arizona Department of Revenue | source Public record |
| Arizona | Unemployment insurance | Arizona Unemployment Insurance Employer Account Number (UI Tax Account Number) | 9999999-98 digits, shown as 9999999-9. The DES UI Tax and Wage System login has one box for "the first seven digits of your UI Tax Account Number" and a second for "the eighth digit", with a dash between them, and says "Only use numeric digits for your Account Number (No dashes)." source Public record | Arizona Department of Economic Security, Unemployment Insurance Tax | source Public record |
| Arkansas | Income tax withholding | Account ID (State of Arkansas ID number, withholding) | 99999999-WHW11 characters: 8 digits followed by the letters WHW. The 2025 W-2 electronic specifications ask for "the eleven (11) digit State of Arkansas ID number (ex 12345678WHW)" with hyphens omitted. Form AR-3Q prints "-WHW" at the end of the Account ID box. source Public record | Arkansas Department of Finance and Administration, Withholding Tax Branch | source Public record |
| Arkansas | Unemployment insurance | Employer account number (DWS Employer Account Number) | 9999999999 digits. The UI Employer Handbook says "The account number will consist of nine digits"; the Tax21 user guide refers to "the full nine digit Account number". | Arkansas Division of Reemployment (Arkansas Department of Commerce), unemployment insurance. The Tax21 employer site and the Employer Handbook still carry the earlier name, Division of Workforce Services. | source Public record |
| California | Income tax withholding | EDD employer payroll tax account number (also called the State Employer Identification Number (SEIN) or State ID number) | 999-9999-98 digits. EDD: "After you register with EDD, you will receive an eight-digit employer payroll tax account number (example: 000-0000-0)." source Public record | California Employment Development Department (EDD) | source Public record |
| California | Unemployment insurance | EDD employer payroll tax account number (Unemployment Insurance and Employment Training Tax) | 999-9999-98 digits, shown as 000-0000-0 in EDD's example; the same number as the withholding account. | California Employment Development Department (EDD) | source Public record |
| California | Disability insurance | EDD employer payroll tax account number (State Disability Insurance, including Paid Family Leave) | 999-9999-98 digits, shown as 000-0000-0 in EDD's example; the same number as the withholding account. | California Employment Development Department (EDD) | source Public record |
| Colorado | Income tax withholding | Colorado Account Number (CAN), the Colorado wage withholding account number | 999999998 digits. CDOR: the Employer's State ID Number on Form W-2 "is the eight-digit Colorado wage withholding account number assigned by the Colorado Department of Revenue"; the DR 1094 instructions say "This number is 8 digits." source Public record | Colorado Department of Revenue | source Public record |
| Colorado | Unemployment insurance | Employer Account Number (EAN) | 999999998 digits, no decimal. CDLE says the format used in MyUI Employer+ "will have two-fewer digits, and no decimal. Ex: Account number 123456.12-1 would become 01234561." | Colorado Department of Labor and Employment, Division of Unemployment Insurance | source Public record |
| Colorado | Paid family and medical leave | FAMLI account number (also called Account ID or FAMLI ID) | 999999999910 digits. FAMLI: employers "will be issued a 10-digit system-generated account number that is specific to Colorado FAMLI." | Colorado Department of Labor and Employment, Division of Family and Medical Leave Insurance (FAMLI) | source Public record |
| Connecticut | Income tax withholding | Connecticut Tax Registration Number (CT Reg. Number; TID) | 99999999999 or 999999999910 or 11 digits: the myconneCT FAQ describes it as "your 7 or 8 digit Taxpayer Identification number followed by a 3 digit location identifier". The W-2 and 1099 file specifications say to enter it without hyphens. | Connecticut Department of Revenue Services (DRS) | source Public record |
| Connecticut | Unemployment insurance | Employer Account Number (EAN) | 99-99999-9-9910 digits, entered as XX-XXXXX-X-XX. CTDOL says the 10-digit EAN is the old 7-digit EAN followed by three trailing zeroes; its example is an old EAN of 9876543 entered as 98-76543-0-00. All communication issued on or after July 5, 2022 includes the 10-digit number. Wage files take the ten-digit Employer Account Number as numeric characters only. | Connecticut Department of Labor, Unemployment Insurance Tax Division | source Public record |
| Connecticut | Paid family and medical leave | CT Paid Leave registration number | Not published | CT Paid Leave Authority | source Public record |
| Delaware | Income tax withholding | Federal Employer Identification Number (used as the Delaware withholding identification number) | The employer's FEIN. The Division of Revenue says withholding agents "will be assigned the same identification number as their Federal Employer Identification Number". | Delaware Department of Finance, Division of Revenue (the number itself is the FEIN issued by the IRS) | source Public record |
| Delaware | Unemployment insurance | Employer Account Number (Delaware unemployment insurance) | 99999-96 digits, shown as XXXXX-X. The UI Employer Handbook says "This six digit account number (XXXXX-X) must then always appear on correspondence and forms". | Delaware Department of Labor, Division of Unemployment Insurance | source Public record |
| Delaware | Paid family and medical leave | Employer Account Number (LaborFirst) | 99999997 digits. The Department of Labor's LaborFirst FAQ says "All quarterly reporting files should have 7 digits. Any reference to 8 digits alludes to a leading 0 which will be an error when it comes to reports." The Quarterly Report File Specifications (version 4.2.1, January 23, 2026) give the field a length of 8, and the June 2026 preview specification says a 7-digit number is entered with a leading zero. source Public record | Delaware Department of Labor, Division of Paid Leave (LaborFirst) | source Public record |
| District of Columbia | Income tax withholding | Withholding Account Number (DC withholding account ID) | 30099999999912 digits beginning with 300. OTR's FR-900Q bulk filing specification says the "DC 12-digit withholding account ID must be registered, active and begin with '300'" and must be linked to the FEIN. | Office of the Chief Financial Officer, Office of Tax and Revenue (OTR) | source Public record |
| District of Columbia | Unemployment insurance | UI Tax account number (UI Employer Account Number) | 9999996 digits. DOES says employers are assigned "a unique six-digit account number for unemployment insurance tax purposes". | Department of Employment Services (DOES), Office of Unemployment Compensation, UI Tax Division | source Public record |
| District of Columbia | Paid family and medical leave | Unemployment Insurance/Paid Family Leave Account Number | 999999Same number as the 6-digit UI tax account number. source Public record | Department of Employment Services (DOES), Office of Paid Family Leave | source Public record |
| Florida | Unemployment insurance | Reemployment tax (RT) account number | 99999997 digits. Form DR-600TP: "Reemployment taxpayers must use their 7-digit account number" and "Please do not include any dashes or spaces when entering account numbers." The RT-6 import specification gives the Employer RT # a length of 7 (positions 12 to 18) and calls it "the seven-digit Employer RT#". The Employer Guide to Reemployment Tax (RT-800002, R. 03/25) says that when an employer is determined to be subject to reemployment tax, "a seven-digit account number will be assigned". source Public record | Florida Department of Revenue | source Public record |
| Georgia | Income tax withholding | Georgia withholding number (GA Withholding ID) | 9999999AA9 characters: 7 digits followed by 2 letters. The Department's CSV upload layouts give the format as "NNNNNNNAA" and say to enter the GA Withholding ID "without the dash" with the letters capitalized. source Public record | Georgia Department of Revenue | source Public record |
| Georgia | Unemployment insurance | Employer Account Number (GDOL account number) | 999999-998 digits. The Employer Handbook glossary defines it as an "Eight-digit number (000000-00)", and the sample Employer Tax Rate Notice shows "DOL ACCOUNT NUMBER: XXXXXX-XX". | Georgia Department of Labor | source Public record |
| Hawaii | Income tax withholding | Employer's withholding Hawaii Tax Identification Number (Hawaii Tax I.D. No.; Withholding Tax ID Number) | WH-999-999-9999-99WH followed by 12 digits. The Department's Hawaii Tax ID Number Changes page gives the new format as "??-###-###-####-##", where "The first two characters represent the tax type" (WH is Withholding Tax), with the example GE-987-654-3210-01 for general excise. The old format was W########-## (example W12345678-01). source Public record | Hawaii Department of Taxation | source Public record |
| Hawaii | Unemployment insurance | Hawaii Unemployment Insurance Account Number (UI account number) | Not published | Hawaii Department of Labor and Industrial Relations, Unemployment Insurance Division | source Public record |
| Hawaii | Disability insurance | DOL number (Department of Labor number) used by the Disability Compensation Division for TDI and Prepaid Health Care; "Z"-number for employers exempt from UI | Not published | Hawaii Department of Labor and Industrial Relations (DOL number through the Unemployment Insurance Division; Z-number from the Disability Compensation Division) | source Public record |
| Idaho | Income tax withholding | Idaho withholding account number (account/permit number) | 9999999999 digits. The W-2 E-Filing Guide (EPB00668, October 2025) says "Enter the 9-digit Idaho withholding account number", numeric characters only, hyphens omitted. The Sample Form W-2 (EIS00411) calls it "the 9-digit account/permit number issued by the Idaho State Tax Commission" and says not to include the "-W" or "-09" at the end of the account number. | Idaho State Tax Commission | source Public record |
| Idaho | Unemployment insurance | Employer Account Number (EAN), also called the Idaho unemployment insurance account number or State Unemployment Tax Account (SUTA) number | 999999999910 digits. The Employer Portal user guide says "Type the 10-digit employer account number into the EAN field." source Public record | Idaho Department of Labor | source Public record |
| Illinois | Income tax withholding | Federal employer identification number (FEIN) and sequence number (Form IL-941) | 999999999The FEIN, entered in its own box on Form IL-941 next to a separate "Seq. number" box. IDOR: "Your sequence number should be "000" unless you have been assigned a different sequence number when you registered." source Public record | Internal Revenue Service (the FEIN); used by the Illinois Department of Revenue | source Public record |
| Illinois | Unemployment insurance | Illinois account number (Unemployment Insurance), the IDES UI account number | 99999997 digits. The UI-3/40 instructions say "Don't forget to fill in your 7-digit UI Account number and your 9-digit FEIN number"; the UI-HA instructions say "enter your 7-digit Illinois Unemployment Insurance Account Number." | Illinois Department of Employment Security (IDES) | source Public record |
| Indiana | Income tax withholding | Indiana Taxpayer Identification Number (TID) and location (LOC) number | 9999999999-999A 10-digit TID followed by a 3-digit location number. Form ST-105 says the TID "is a ten digit number followed by a three digit LOC Number" and lays the boxes out as "TID Number (10 digits)" - "LOC Number (3 digits)". DOR's bulk filing rules call these the 10-digit Indiana TID (StateID) and the 3-digit Location ID (LocNbr). | Indiana Department of Revenue | source Public record |
| Indiana | Unemployment insurance | State Unemployment Tax Account Number (SUTA) | 999999Up to 6 digits, padded with leading zeros. DWD's Wage Reporting Guide says: "The number is up to six digits long with leading zeros. If the account number is 1317, the six digits are 001317." | Indiana Department of Workforce Development | source Public record |
| Iowa | Income tax withholding | Iowa Withholding Permit Number | 9-99-999999 or 99-99999999999 digits (permits issued after November 15, 2021, and older permits renumbered in GovConnectIowa); older permits have 12 digits. The Department says permits "are 9 or 12 digits and commonly appear with hyphens". Its ACH credit instructions show a 9-digit permit as "3-33-333333" and a 12-digit permit as "12-3456789001". source Public record | Iowa Department of Revenue | source Public record |
| Iowa | Unemployment insurance | UI Account Number (Iowa Unemployment Insurance Account Number) | 999999998 digits with leading zeros. The MyIowaUI CSV import instructions say "Must be 8 digits. Format to hold leading zeroes. Ex: 00123456". The check digit formerly shown after a dash is no longer used: "if your account number was 123456-7, your new account number is 00123456". | Iowa Workforce Development, Unemployment Insurance Tax Bureau | source Public record |
| Kansas | Income tax withholding | Kansas Tax Account Number (Kansas withholding tax account number) | 036-999999999F-9915 characters based on the FEIN: the tax type prefix 036, the 9-digit EIN, then F01. KW-100: "Your Kansas account number for withholding tax is a 15 character number based on your federal Employer Identification Number (EIN)", illustrated as "036 481234578 F01" (Tax Type, EIN, Tax Account). On Form W-2 it is written "036-XXXXXXXXXF-01". | Kansas Department of Revenue | source Public record |
| Kansas | Unemployment insurance | Employer Account Number (EAN) | 99-99999-99910 digits. KDOL told the Senate Commerce Committee that the UITE launch kept "the same employer account numbers, now reformatted into a 10-digit structure." The Employer Portal's sign-up form takes the EAN in three boxes of 2, 5 and 3 digits separated by dashes. KDOL's Quarterly Wage Report and Unemployment Tax Report (K-CNS 100, Rev. 03-26) asks for the "Employer Account No. (EAN)" in item 2, which its instructions describe as "Your 10-digit employer account number"; KDOL's new hire upload layout gives the EAN 10 positions (565 to 574), or 0000000000 if the employer has none. source Public record | Kansas Department of Labor | source Public record |
| Kentucky | Income tax withholding | Kentucky Withholding Account Number | 999999 or 9999999996 or 9 digits. The 2026 electronic W-2 specifications say "Always use the correct Kentucky Withholding Account Number (6 or 9 digits)" and, for the RS record, "Enter 6 or 9 digit state income tax withholding account number (NOT UNEMPLOYMENT INSURANCE NUMBER)", right justified and zero filled. Transmitter Report 42A806 asks for the "KY 6-digit or 9-digit Withholding Account Number". source Public record | Kentucky Department of Revenue | source Public record |
| Kentucky | Unemployment insurance | Kentucky Employer Identification Number (KEIN) | 9999999999 digits, with no check digit: a 3-digit prefix followed by the 6-digit base number. A KEIN starting with 1 is an account converted from the legacy system; a KEIN starting with 2 is an employer that registered in KUIP after Monday, August 17, 2026. For converted accounts the prefix turns the legacy number's letter into two digits (A = 01, B = 02, C = 03 and so on); OUI's example is a legacy 00123456B that appears as 102123456 in KUIP. Wage files take the "9-digit Kentucky Employer Identification Number without hyphens". A separate 3-digit reporting unit number (000 for the main unit) identifies work sites. source Public record | Kentucky Education and Labor Cabinet, Office of Unemployment Insurance | source Public record |
| Louisiana | Income tax withholding | Louisiana Revenue Account Number (withholding tax account number) | 999999999910 digits. LDR's Electronic Funds Transfer Guidelines (R-20201, 7/25): "The Louisiana Revenue Account Number field is a 10-character numeric field assigned by the Louisiana Department of Revenue", with the caution "Do not include any dashes." The LaWage W-2 portal calls it the "LDR 10-digit account number". | Louisiana Department of Revenue (LDR) | source Public record |
| Louisiana | Unemployment insurance | UI Employer Account Number (EAN) | 99999997 digits. Louisiana Works' LAWATS registration guide (last updated 04/11/2024) says "Enter your 7-digit Employer Account Number" alongside the 9-digit FEIN; its power of attorney bulk file format describes the client's LA UI account number as "At least 7 digits". source Public record | Louisiana Works (Louisiana Workforce Commission until October 2025) | source Public record |
| Maine | Income tax withholding | Maine Withholding Account ID (Income Tax Withholding Account ID) | 9999-99998 digits. The 2026 quarterly file specification says "An eight-digit Account ID. Example: 1234-5678." MRS's Maine Tax Portal FAQ says the hyphen can be left out (12345678) or included (1234-5678) in a bulk file. Older 11-character Withholding Account IDs are still accepted, but only for businesses registered before November 2022. source Public record | Maine Revenue Services (Department of Administrative and Financial Services) | source Public record |
| Maine | Unemployment insurance | UC Employer Account Number (Employer Account Number, EAN; formerly State Employer Identification Number, SEIN) | 9999999999The ReEmployME wage file specification (rev. 01/13/2021) gives it a 10-position numeric field: "Enter current Maine UC Employer Account Number. Numeric only. Omit hyphens, prefixes & suffixes." The Department's pages read do not otherwise describe its length or how it is displayed. | Maine Department of Labor, Bureau of Unemployment Compensation | source Public record |
| Maine | Paid family and medical leave | MPL Account Number (Maine Paid Leave account) | The Maine Paid Leave bulk wage report specification gives the MPL Account Number a 10-position numeric field (E record positions 173-182) and says a number entered must be "a valid account number in the Maine Paid Leave System" that corresponds to the employer's FEIN. The field is optional, and the specification does not describe the number's length or display, so no pattern is given. | Maine Department of Labor, Paid Family and Medical Leave program | source Public record |
| Maryland | Income tax withholding | Central Registration Number (CRN) | 999999998 digits. The Comptroller calls it "your eight-digit Maryland tax account number". source Public record | Comptroller of Maryland, Revenue Administration Division | source Public record |
| Maryland | Unemployment insurance | Maryland Unemployment Insurance Employer Account Number | 999999999910 digits including leading zeros. The wage file specification says account numbers "must be 10 digits long, including leading zeros". | Maryland Department of Labor, Division of Unemployment Insurance | source Public record |
| Maryland | Paid family and medical leave | FAMLI account number | Not published | Maryland Department of Labor, FAMLI Division | source Public record |
| Massachusetts | Income tax withholding | Account ID (withholding account in MassTaxConnect) | Not published | Massachusetts Department of Revenue | source Public record |
| Massachusetts | Unemployment insurance | DUA Employer Account Number (also known as the DET number) | 999999998 digits, numeric only, no dashes. DUA's wage file upload specifications (v2.0): "8-digit account number assigned to the employer. Numeric field only. No dashes or hyphens." The fixed-width layouts also carry a separate 4-digit employer unit number. | Massachusetts Executive Office of Labor and Workforce Development, Department of Unemployment Assistance | source Public record |
| Massachusetts | Paid family and medical leave | Paid Family and Medical Leave account ID (MassTaxConnect) | PFM9999999999914 characters: PFM followed by 11 digits. DOR's XML bulk filing instructions give the account ID as "PFM###########" with no hyphens, dashes or delimiters, and the bulk filing instructions say "The remainder of the account ID must be numeric." In MassTaxConnect it is displayed with dashes, as PFM-xxxxxxxx-xxx (DFML). source Public record | Massachusetts Department of Revenue, for the Department of Family and Medical Leave | source Public record |
| Michigan | Income tax withholding | Business Account Number (FEIN or TR Number) | 999999999The federal EIN (9 digits). A business without an FEIN receives a Treasury Registration (TR) number; Treasury's EFT instructions describe Treasury-assigned numbers as "TR....", to be entered with the hyphen, in a 9-character field. source Public record | Internal Revenue Service (the FEIN) or Michigan Department of Treasury (a TR number); used by the Michigan Department of Treasury | source Public record |
| Michigan | Unemployment insurance | Employer Account Number (EAN) | 99999997 digits in MiUI. UIA's FAQ says that in MiWAM the EAN was 10 digits, the last three a location code, and that the MiUI EAN is the first seven digits of the MiWAM EAN. | Michigan Department of Labor and Economic Opportunity, Unemployment Insurance Agency | source Public record |
| Minnesota | Income tax withholding | Minnesota Tax ID Number | 99999997 digits. Revenue: "A Minnesota Tax ID Number is a seven-digit number used to report and pay Minnesota business taxes." | Minnesota Department of Revenue | source Public record |
| Minnesota | Unemployment insurance | Employer account number (Minnesota UI/Paid Leave employer account number) | 999999998 digits. DEED: "Minnesota employers are assigned an 8-digit employer account number (4-digit reporting unit numbers when indicated)". The wage detail CSV specification says to "Enter entire 8-digit account number" as text, with a separate 4-digit unit location number. source Public record | Minnesota Department of Employment and Economic Development (DEED), Unemployment Insurance Division | source Public record |
| Minnesota | Paid family and medical leave | Minnesota Paid Leave (no separate number; uses the Joint UI-Paid Leave or Paid Leave-ONLY employer account number) | 99999999The 8-digit employer account number, the same field the wage detail specification labels "Minnesota UI/Paid Leave employer account number". source Public record | Minnesota Department of Employment and Economic Development (DEED); the employer account sits in the Joint Unemployment Insurance - Paid Leave employer system | source Public record |
| Mississippi | Income tax withholding | Withholding Account ID (Employer's Account Number) | 999999998 digits. The Department of Revenue's W-2 bulk filing page says: "Use the 8-digit Account ID in the State ID field for W2s." | Mississippi Department of Revenue | source Public record |
| Mississippi | Unemployment insurance | Employer Account Number (MDES account number) | 999999999910 digits. MDES: "An Employer Account Number is the 10 digit number assigned by MDES at the time you registered your business." Its magnetic media wage report specification says Mississippi's account number "is 10 digits without dashes or slashes." | Mississippi Department of Employment Security (MDES) | source Public record |
| Missouri | Income tax withholding | Missouri Tax I.D. Number (Missouri Tax Identification Number, MOID) | 999999998 digits. The MO-941 instructions say: "An eight digit number issued by the Missouri Department of Revenue to identify your business." | Missouri Department of Revenue | source Public record |
| Missouri | Unemployment insurance | Employer account number (MO Employer Account No.) | 99-99999-9-9910 digits, shown as 00-00000-0-00. The Division's employer guide says: "The account number contains 10 digits, as follows: 00-00000-0-00." Its file specifications give the same layout (xx-xxxxx-x-xx) and say to omit the hyphens in wage files. | Missouri Department of Labor and Industrial Relations, Division of Employment Security | source Public record |
| Montana | Income tax withholding | Wage Withholding (WTH) Account ID (Montana Account ID; the GenTax account ID) | 9999999999WTH13 characters: 10 digits followed by WTH. The Department's ACH payments page asks for "Your 13-character Montana Tax ID (e.g., 4123456002WTH)" and, for the TXP addenda, "Your 13 Character Alphanumeric Montana Account ID". Form MW-3 (V5 07/2026) shows the Account ID as 10 boxes followed by a preprinted WTH. | Montana Department of Revenue | source Public record |
| Montana | Unemployment insurance | Montana Employer Account Number (UI employer account number, EAN) | 99999997 digits. The UI Contributions E-Filing Handbook (updated September 2026) describes the Montana Employer Account Number as "The 7-digit number assigned to registered employers" and, in the ICESA wage file layout, says to enter "the states 7-digit UI employer account number", numeric characters only, omitting hyphens or spaces. | Montana Department of Labor and Industry, Unemployment Insurance Division | source Public record |
| Nebraska | Income tax withholding | Nebraska ID number (Nebraska State Identification Number), with an income tax withholding certificate | 99999999 or 9999999 or 999999 or 99999 or 99994 to 8 digits. The Department's W-2 guidance says the Nebraska ID number, "as displayed on the preidentified Forms 941N or W-3N", goes in box 15 of Form W-2 and "will be 4 to 8 digits in length"; its example is an 8-digit number with no separators. | Nebraska Department of Revenue | source Public record |
| Nebraska | Unemployment insurance | UI Employer Account Number (EAN), the employer tax account number | 999999999910 digits. The Department of Labor's Combined Tax Rates page says an appeal letter "must contain the ten (10) digit employer tax account number", and its 512-byte wage file format says to "Enter 10-digit employer account number" in the RS record. | Nebraska Department of Labor, Unemployment Insurance Tax | source Public record |
| Nevada | Unemployment insurance | Unemployment insurance employer account number (DETR Employment Security Division) | 9999999.99-9Seven digits, a decimal point, two digits, a hyphen and a check digit, as printed on the pre-printed quarterly report. DETR's electronic filing page says "An employer number appearing on the pre-printed quarterly report as 0123456.00-7, must be entered as 012345600": in a wage file the decimal, hyphen and check digit are left out and the nine digits are right justified and left zero filled. source Public record | Nevada Department of Employment, Training and Rehabilitation (DETR), Employment Security Division | source Public record |
| Nevada | Other payroll tax | Modified Business Tax (MBT) Account ID | MBT9999999999993 letters plus 12 digits, 15 characters. The Department's ACH credit instructions (V2026.1) say "Account ID is 3 letter characters, 12 digits, 15 characters total length" and that the 3-letter tax type code (MBT for Modified Business Tax) comes from the account number; its sample Account ID for another tax type is CTE000000012345. The MBT return (TAX-F003) shows the number after an "MBT:" label in three groups of four boxes separated by dashes. | Nevada Department of Taxation | source Public record |
| New Hampshire | Unemployment insurance | New Hampshire employer account number (NHES; "State employer account number" in the wage file rule) | 999999999NHES's administrative rule for electronic wage files (Emp 303.022(l)) records the State employer account number "as a 9 digit field": it "shall not contain hyphens", is right justified, and leading spaces are zero filled. The rule does not say how the number is displayed elsewhere. | New Hampshire Employment Security (NHES) | source Public record |
| New Jersey | Income tax withholding | New Jersey Taxpayer Identification Number | 99999999999912 digits: the 9-digit FEIN (or the owner's SSN) followed by a 3-digit suffix of 000. The NJ-WT instructions call it the 12-digit FEIN. | State of New Jersey (Division of Revenue and Enterprise Services registration; used by the Division of Taxation) | source Public record |
| New Jersey | Unemployment insurance | New Jersey Taxpayer Identification Number (reported on Forms NJ-927 and WR-30) | 99999999999912 digits: the 9-digit FEIN followed by a 3-digit suffix; if no suffix was assigned, three zeroes. source Public record | New Jersey Department of Labor and Workforce Development (contributions); number assigned through NJ-REG | source Public record |
| New Jersey | Unemployment insurance | Employer Identification Number (EIN) for NJDOL Employer Access | 09999999999990015 digits: a leading 0, then the 12-digit New Jersey tax identification number used on NJ-927 and WR-30, then 00. The last two digits differ only for certain clients of employee leasing companies that chose client-level reporting. | New Jersey Department of Labor and Workforce Development | source Public record |
| New Jersey | Disability insurance | New Jersey Taxpayer Identification Number (temporary disability insurance contributions) | 999999999999Same 12-digit number as unemployment and withholding. source Public record | New Jersey Department of Labor and Workforce Development | source Public record |
| New Jersey | Paid family and medical leave | New Jersey Taxpayer Identification Number (family leave insurance contributions) | 999999999999Same 12-digit number as unemployment and withholding. source Public record | New Jersey Department of Labor and Workforce Development | source Public record |
| New Mexico | Income tax withholding | New Mexico Business Tax Identification Number (NMBTIN) | 9999999999911 digits. FYI-330 (Rev. 12/2025) says to enter "The payer's 11-digit NMBTIN. All numeric, no spaces, special characters or dashes" in electronic withholding statements. Form ACD-31015 (Rev. 8/30/2024) prints the update box as "NMBTIN: 0__ - ______ - 00- ___", with a fixed 0 and 00 around entry fields of 2, 6 and 3 characters. source Public record | New Mexico Taxation and Revenue Department | source Public record |
| New Mexico | Unemployment insurance | Employer Account Number (EAN) | 999999998 digits. The Department of Workforce Solutions EFW2 wage file format (v2.1) says "Numeric - 8-digit employer account number. Numeric field only. No dashes or hyphens. Right justify and zero fill." The XML format gives the field a length of 8 with the sample value 12345678. Wage reports also carry a separate 5-digit Reporting Unit Number (00001 for single-unit employers). source Public record | New Mexico Department of Workforce Solutions | source Public record |
| New York | Income tax withholding | Withholding identification number | 999999999The 9-digit federal EIN. Forms NYS-45 and NYS-1 have three boxes: the 9-digit EIN, then a 2-digit New York suffix if one was assigned, then an assigned check digit if known. source Public record | Internal Revenue Service (the EIN); used by the New York State Department of Taxation and Finance | source Public record |
| New York | Unemployment insurance | UI employer registration number (employer registration number) | 99-99999 98 digits: a 7-digit registration number plus a check digit, entered in two boxes on Form NYS-45. The Web File application shows a default of 00-00000 0 when no number is available. source Public record | New York State Department of Labor, Unemployment Insurance Division | source Public record |
| New York | Other payroll tax | Employer identification number (EIN) on Form MTA-305, Metropolitan Commuter Transportation Mobility Tax | The federal EIN; the Tax Department's MCTMT employer page and MTA-305 instructions describe no separate MCTMT account number. | Internal Revenue Service (the EIN); New York State Department of Taxation and Finance administers the MCTMT | source Public record |
| North Carolina | Income tax withholding | NC withholding tax account number (NC Withholding Identification Number, Account ID) | 9999999999 digits. The Department's ACH credit guidelines say "Your Withholding Tax Account Number is a nine digit number", and the 2026 NC-5Q file layout gives the NC Withholding Account Number as 9 numeric positions. source Public record | North Carolina Department of Revenue | source Public record |
| North Carolina | Unemployment insurance | Employer ID Number (formerly EAN, the employer account number) | 999999999910 digits. The NCSUITS FAQs say "every Employer ID Number is 10 digits long"; a legacy 7-digit account number became three zeros followed by the first seven digits of the old number. | North Carolina Department of Commerce, Division of Employment Security | source Public record |
| North Dakota | Income tax withholding | State Withholding Account Number (North Dakota withholding account number) | 9999999990111 digits: the employer's 9-digit federal EIN followed by a 2-digit state suffix, normally 01. Form 301-EF asks for the "State Withholding Account Number (Your 9-digit federal ID plus the State's 2-digit suffix)"; the withholding guideline says the state identification number "consists of the payor's federal employer identification number (FEIN) with the suffix "01" at the end"; the ACH credit layout calls it an "11-digit ID Number (Federal ID plus a 2-digit suffix)". source Public record | North Dakota Office of State Tax Commissioner | source Public record |
| North Dakota | Unemployment insurance | Employer account number (North Dakota State Unemployment Insurance account number) | 9999999A 7-digit numeric field in Job Service North Dakota's Electronic Fund Transfer Guide (JSND 4038, R. 04-2026): in the CTX addenda record, positions 4 to 10 hold the "Employer's ND UI Account Number. This is a seven-digit numeric position", right justified and zero filled. The guide does not say how the number is displayed or whether it has a check digit. source Public record | Job Service North Dakota | source Public record |
| Ohio | Income tax withholding | Ohio withholding account number (employer withholding account number) | 999999998 digits beginning with 51, 52, 53, 54 or 55. The 2026 W-2 upload specifications say the State Employer Account Number for Ohio "will begin with 51, 52, 53, 54, or 55 and is 8 digits in length" and to omit hyphens. source Public record | Ohio Department of Taxation | source Public record |
| Ohio | Other payroll tax | School district income tax withholding (no separate number; uses the Ohio withholding account number) | The Ohio withholding account number. School districts themselves are identified by four-digit school district codes, which are not employer account numbers. | Ohio Department of Taxation | source Public record |
| Ohio | Unemployment insurance | Employer ID (unemployment tax Employer ID) | Not published | Ohio Department of Job and Family Services | source Public record |
| Oklahoma | Income tax withholding | Account ID (withholding tax account, WTH) | WTH-99999999-9913 characters: the three-letter account type indicator WTH followed by a ten-digit number. The OkTAP FAQ says the account ID "is a three-letter account type indicator followed by a ten-digit number assigned by the Oklahoma Tax Commission" and gives the sample account ID for Withholding Tax as WTH-10000000-99. source Public record | Oklahoma Tax Commission | source Public record |
| Oklahoma | Unemployment insurance | Oklahoma Account Number (OESC unemployment tax account number) | Not published | Oklahoma Employment Security Commission | source Public record |
| Oregon | Income tax withholding | Oregon Business Identification Number (BIN) | 99999999-98 digits, a dash, then 1 digit. The 2026 Combined Payroll Tax booklet: "The correct format for a BIN is NNNNNNNN-N (for example, 01234567-8)." | Oregon Department of Revenue | source Public record |
| Oregon | Unemployment insurance | Unemployment insurance (no separate number; uses the BIN) | 99999999-9The BIN (8 digits, a dash, 1 digit). | Oregon Employment Department (OED); the BIN itself is assigned by DOR | source Public record |
| Oregon | Paid family and medical leave | Paid Leave Oregon (no separate number; uses the BIN) | 99999999-9The BIN (8 digits, a dash, 1 digit). source Public record | Oregon Employment Department (OED), Paid Leave Oregon | source Public record |
| Oregon | Other payroll tax | Statewide transit tax (STT) (no separate number; uses the BIN) | 99999999-9The BIN (8 digits, a dash, 1 digit). | Oregon Department of Revenue | source Public record |
| Oregon | Other payroll tax | Workers' Benefit Fund (WBF) assessment (no separate number; uses the BIN) | 99999999-9The BIN (8 digits, a dash, 1 digit). | Oregon Department of Consumer and Business Services (DCBS) | source Public record |
| Pennsylvania | Income tax withholding | Employer Withholding Account ID (8-digit Account ID Number, called the Withholding ID in myPATH file specifications) | 99999999 or 999999999998 digits. The same withholding account also has an 11-digit Account Number in myPATH; electronic files accept either, entered with no dashes or spaces. source Public record | Pennsylvania Department of Revenue | source Public record |
| Pennsylvania | Unemployment insurance | Employer Account Number (EAN), the PA UC account number | 99999997 digits (the UC-2010 file specifications call it the 7-digit ID number; keep any leading zero). Printed forms and notices show it with a hyphen, and some add a check digit and an R or M indicator, which electronic files leave out. No published source states where the hyphen falls. source Public record | Pennsylvania Department of Labor & Industry, Office of Unemployment Compensation Tax Services | source Public record |
| Rhode Island | Income tax withholding | Employer's Identification Number (federal EIN) for Rhode Island withholding | 999999999The 9-digit federal EIN. The Division's 2026 withholding booklet says "The Employer's Identification Number to be used for Rhode Island income tax purposes will be the identification number currently issued to an employer by the United States Internal Revenue Service." The RI W-3 bulk template requires 9 digits, numbers only, no dash. source Public record | Internal Revenue Service (the EIN); used by the Rhode Island Department of Revenue, Division of Taxation | source Public record |
| Rhode Island | Unemployment insurance | RI Employer Account Number (UI account number) | 999999999910 digits including leading zeroes. The TX-17 Employer Wage Tax Filing sign-in asks for the "RI Employer Account No.: (10 digits, include leading zeroes)". DLT's Wage Record Specifications (2026) call it the employer's "10-digit RI SUI account #" and say not to use the Federal ID number in the account field. | Rhode Island Department of Labor and Training, Employer Tax Unit | source Public record |
| South Carolina | Income tax withholding | SC Withholding File Number | 99999999-99 digits. SCDOR: "Your SC Withholding File Number is a 9-digit number." The WH-1606 vendor data specification labels the field "SC WITHHOLDING NO (including check digit)" and gives its print format as 99999999-9, that is 8 digits, a dash, and a check digit. source Public record | South Carolina Department of Revenue (SCDOR) | source Public record |
| South Carolina | Unemployment insurance | DEW account number (State Unemployment Tax Account number; Employer Account ID in SUITS) | Not published | South Carolina Department of Employment and Workforce (DEW) | source Public record |
| South Dakota | Unemployment insurance | RA account number (Employer Account Number) | 99999.9-97 digits shown as 12345.6-7. DLR's online Form 55 (Application for Exemption or Transfer of Liability) rejects an entry with "Invalid Account Number, Please format account number as: 12345.6-7", and the eforms script masks the field as 00000.0-0: five digits, a period, one digit, a dash and one digit. | South Dakota Department of Labor and Regulation, Reemployment Assistance Division | source Public record |
| Tennessee | Unemployment insurance | Employer account number (EAN) | 999999998 digits. The Department says a liable employer "will be assigned an eight-digit employer account number (e.g., 00000000)". | Tennessee Department of Labor and Workforce Development, Division of Employment Security (Unemployment Insurance) | source Public record |
| Texas | Unemployment insurance | TWC Account Number (TWC tax account number) | 9999999999 digits. The TWC registration glossary defines the TWC Account Number as a "9-digit number assigned by the TWC to liable/not liable employers". | Texas Workforce Commission (TWC), Unemployment Tax | source Public record |
| Utah | Income tax withholding | Utah withholding account number (withholding tax account; Utah Withholding Account ID) | 99999999-999-WTH14 characters: 11 digits followed by WTH. Publication 14 calls it "the 14-digit number ending in WTH" and says the dashes may be left out if the number won't fit on a W-2. The Tax Commission's 2023 withholding webinar shows the account number on its sample account letter as XXXXXXXX-XXX-WTH and a sample W-2 entry as 12345678-003-WTH. The file layouts (TI-03) say "The number is 14 characters (11 numeric digits followed by "WTH")" and to omit hyphens in files. source Public record | Utah State Tax Commission | source Public record |
| Utah | Unemployment insurance | Utah Employer Registration Number (DWS UT UI Registration Number) | 9999999The Workforce Services MMREF wage file specification gives it a 10-character alphanumeric field, "DWS Employer UT UI Registration Number", with the examples "C01234567" OR "C1234567" OR "R01234567" OR "R1234567" OR "01234567" OR "1234567": a 7-digit number, optionally with a leading zero and optionally preceded by C or R. source Public record | Utah Department of Workforce Services, Unemployment Insurance Division | source Public record |
| Vermont | Income tax withholding | Vermont Withholding Account number (account ID WHT-XXXXXXXX) | WHT-99999999The letters WHT followed by 8 digits. The 1099 e-filing specifications give the format as "WHT-12345678". The W-2 specifications say "Use the account ID (WHT-XXXXXXXX) assigned to you. Be sure to omit the hyphen. Example: WHTXXXXXXXX" (RS record positions 248-267, left-justified, blank-filled). The WHT-436 bulk file layout's example is WHT12345678 in a 15-position field. source Public record | Vermont Department of Taxes | source Public record |
| Vermont | Unemployment insurance | VT Employer Account Number (Vermont Department of Labor employer account number, EAN) | 99999997 digits. The Department's ICESA specifications for Employer e-Services give the VT Employer Account Number a 9(07) field and say "If VDOL account number is less than 7 digits, enter preceding zeros to fill required 7-digit field picture." | Vermont Department of Labor, Unemployment Insurance and Wages Division | source Public record |
| Virginia | Income tax withholding | Virginia Tax account number (withholding) | 30-999999999F-999A 2-digit tax type code (30 for withholding), the 9-digit FEIN, the letter F (to show it is a FEIN), and a 3-digit business location code. Virginia Tax's own example, for a sales tax return, is shown as 10-123456789F-001; the withholding version starts with 30. | Virginia Department of Taxation (Virginia Tax) | source Public record |
| Virginia | Unemployment insurance | VEC Account Number | 0099999999 or 000999999910 digits. The VEC's contact page: "A properly registered account with the VEC has a 10-digit account number (00######## or 000#######)". source Public record | Virginia Employment Commission (VEC) | source Public record |
| Washington | Other payroll tax | Unified Business Identifier (UBI) number | 999-999-9999 digits. DOR calls it "a nine-digit number that registers you with several state agencies". L&I's authorization form writes it as 603-123-456 and says most UBI numbers begin with the number six (6). ESD's bulk wage file allows a 12-digit UBI or the 9-digit UBI followed by three blanks; ESD reserves the last 3 digits for the extended UBI number. source Public record | Washington Department of Revenue, Business Licensing Service | source Public record |
| Washington | Unemployment insurance | Employment Security Department (ESD) Number | 99999999999912 digits: an 11-digit ESD Number and a one-digit check digit, no hyphens or spaces. ESD changed its numbering from nine to 12 digits, and renamed it the ESD Number, on July 1, 2022. source Public record | Washington Employment Security Department, Unemployment Insurance Division | source Public record |
| Washington | Paid family and medical leave | Leave and Care Employer Customer ID Number (Paid Family and Medical Leave) | C99999999910 characters: "C" followed by the 9-digit UBI without hyphens, or an agency-provided alternative of 9 alphanumeric characters. | Washington Employment Security Department, Paid Family and Medical Leave | source Public record |
| Washington | Other payroll tax | Leave and Care Employer Customer ID Number (WA Cares Fund long-term care) | C99999999910 characters: "C" followed by the 9-digit UBI without hyphens, or an agency-provided alternative of 9 alphanumeric characters. | Washington Employment Security Department (WA Cares Fund premiums) | source Public record |
| Washington | Other payroll tax | L&I Account ID (workers' compensation) | 999,999-998 digits. L&I: "the 8-digit Account ID number issued by L&I when a workers' compensation account is opened. It follows the format 123,456-78." | Washington State Department of Labor & Industries | source Public record |
| West Virginia | Income tax withholding | Withholding account number (West Virginia Tax Identification Number / WV Tax Account Number) | 999999998 digits. The W-2 file specifications (WV/IT-105, 09/2025) put the "WV 8 digit account number" in positions 25-32 of the RV (reconciliation) record; the New Business Registration form (WV/BUS-APP) asks an employer consolidating under an existing withholding account to "ENTER THE EIGHT DIGIT ACCOUNT NUMBER"; the EFT guide (EFT-4, July 2026) lists the "8 digit WV Tax Account Number" as one accepted Taxpayer ID, with no dashes. | West Virginia Department of Revenue, Tax Division | source Public record |
| West Virginia | Unemployment insurance | WorkForce West Virginia employer account number (West Virginia Unemployment Insurance account number) | 99999-96 digits including a check digit, displayed with a dash before the check digit. The WorkForce wage reporting specifications (September 2022) say the account number is "the six-digit account number which includes the check digit" and show examples written "00012-3" and "12345-6"; in the E record (positions 173-187) it is entered as nine leading zeros followed by the six digits, with no dashes. | WorkForce West Virginia, Unemployment Compensation Division | source Public record |
| Wisconsin | Income tax withholding | Wisconsin withholding tax number (Wisconsin Tax Account number) | 036-9999999999-9915 digits beginning with 036. Publication W-166 says: "The Wisconsin withholding tax number has 15 digits and appears as: 036-0000000000-00." | Wisconsin Department of Revenue | source Public record |
| Wisconsin | Unemployment insurance | UI account number (Employer UI Account Number) | 999999-999-910 digits, shown as 123456-000-7 in DWD's example. The employer handbook's wage file layouts say: "Enter Your 10-digit UI Account Number. Example: If your account number is 123456-000-7, positions 1-10 should contain 1234560007." | Wisconsin Department of Workforce Development, Unemployment Insurance Division | source Public record |
| Wyoming | Unemployment insurance | Employer Account Number (EAN), the Unemployment Insurance (UI) account number | 999999999910 digits. The Department's guide to establishing an employer login in WYUI says: "Use your existing UI account number, but add a leading zero. The new numbers are 10 digits long." | Wyoming Department of Workforce Services, Unemployment Insurance Division | source Public record |
| Wyoming | Other payroll tax | Workers' Compensation (WC) account number (Workers' Comp employer number) | Not published | Wyoming Department of Workforce Services, Workers' Compensation Division | source Public record |
No numbers match these filters.