The federal employees EIN is the nine-digit Employer Identification Number the IRS assigns to your agency as an employer, formatted XX-XXXXXXX. You’ll find it in Box b of your Form W-2, and you use it to file taxes, apply for Public Service Loan Forgiveness, and verify your employment with lenders or landlords.1Office of the Law Revision Counsel. 26 USC 6109 – Identifying Numbers
What the Number Is
The EIN identifies your agency the same way a Social Security Number identifies you: it tells the IRS who reported the wages and paid the payroll taxes. Federal law requires any entity filing a return or statement to include its identifying number, and federal agencies file under their own EINs like any other employer.1Office of the Law Revision Counsel. 26 USC 6109 – Identifying Numbers
One agency can have more than one EIN. The Department of Defense uses separate numbers for active-duty military branches, civilian employees, non-appropriated fund workers, and military retiree pensions.2Office of Child Support Enforcement. Federal Agencies Addresses for Income Withholding and Medical Support So if you transferred between DOD components, or moved from one agency to another mid-year, you may receive multiple W-2s carrying different EINs. Each one is a separate employer to the IRS, even though your paycheck never left the federal government.
Where to Find Your Agency’s EIN
Look at Box b on your Form W-2, Wage and Tax Statement. The IRS designates that box for the employer’s identification number, printed as XX-XXXXXXX.3Internal Revenue Service. 2026 General Instructions for Forms W-2 and W-3 It sits near the employer’s name and address block on the left side of the form.
If you can’t put your hands on the W-2, two backups will show the same number:
- Your Form 1095-C, the annual health coverage statement. The EIN appears on Line 8 in Part I, under the employer information section.4Internal Revenue Service. 2025 Form 1095-C
- Your most recent Leave and Earnings Statement. Most federal payroll systems print the agency EIN on every pay stub, though placement varies by system.
Getting to Your Tax Documents
Which self-service portal you use depends on the payroll provider that services your agency.
Military members, DOD civilians, and military retirees use myPay, run by the Defense Finance and Accounting Service. It holds the current tax year plus the previous four, and DFAS recommends opting out of paper delivery to avoid lost mail.5Defense Finance and Accounting Service. Tax Documents
Agencies serviced by GSA’s payroll shared services now use HR Links, which replaced Employee Express. No historical data transferred from the old system. Employee Express remains in read-only mode through April 15, 2026 so you can download prior W-2s and 1095-Cs; after that date, archived records go through your agency’s payroll office.6General Services Administration. HR Links – Payroll Employee Self Service
If your agency is one of the 156-plus serviced by the USDA’s National Finance Center, your tax documents live in the Employee Personal Page. When you don’t know which system runs your payroll, your HR office does.
Using the EIN for Public Service Loan Forgiveness
To apply for PSLF, you enter your agency’s EIN and your employment dates in the PSLF Help Tool on StudentAid.gov. The tool searches its database and, for federal agencies, almost always returns “Eligible.” Certification runs at the department level, so it doesn’t matter which office, command, or facility employs you: if you work for a qualifying federal department, the whole department counts.7Federal Student Aid. Become a Public Service Loan Forgiveness (PSLF) Help Tool Ninja
A few practical points speed the review. Select your employer from the tool’s database rather than typing the EIN by hand; a manual entry or an “undetermined” result triggers a longer verification. Enter the employer name exactly as it appears on your W-2 to avoid mismatches. Uploading the W-2 as supporting documentation helps. After completing the form, you’ll be asked for the email address of an authorized official at your agency, usually someone in HR with access to your service records, who can verify your employment.
Using the EIN for Tax Filing and Employment Verification
Tax software asks for the EIN so the IRS can match your reported wages to the W-2 your agency already filed with the Social Security Administration. Copy it straight from Box b. A wrong digit can delay your refund or produce a mismatch notice.
Outside of taxes, some agencies use third-party employment verification services. The Department of Labor uses The Work Number, which lenders, landlords, and background screeners can access with an agency-specific employer code.8U.S. Department of Labor. Employment Verification Not every agency participates. When yours doesn’t, HR can issue a written verification letter that typically lists the agency EIN alongside your dates of service and salary.
Fixing a Wrong EIN on Your W-2
If the EIN on your W-2 is wrong, only your agency’s payroll office can fix it, by issuing a corrected form called a W-2C. Contact HR or payroll as soon as you notice, and hold on to the original W-2 until the corrected version arrives.9Internal Revenue Service. Corrected Wage and Tax Statement
On the W-2C, Box b carries the corrected EIN and Box c identifies the tax year and form being corrected. Your agency files the corrected form with the Social Security Administration and gives you a copy. If you already filed using the wrong number, you generally don’t need to amend; the IRS reconciles through its own systems once the W-2C is submitted. Call the IRS only if the error produced a notice or a rejected e-file, and reference the corrected form when you do.
If You Work at a Federal Agency as a Contractor
Contractor employees are a common exception worth flagging. If you work inside a federal building but your paycheck comes from a contracting company, your W-2 will show that company’s EIN, not the agency’s, because the company is your legal employer for tax purposes. This matters most for PSLF: most for-profit contractors don’t qualify as public service employers, even when you spend every workday on federal premises.