To verify a W-2, pull your IRS Wage and Income Transcript through your IRS Online Account and compare it line by line against the form your employer gave you. The transcript shows exactly what your employer reported to the IRS under your Social Security number, so any figure on the W-2 that doesn’t match the transcript is a problem you need to resolve before you file. If you’re checking someone else’s W-2, the same principle applies: the only reliable verification is comparing the document against independently filed government records.
Pull Your IRS Wage and Income Transcript
The Wage and Income Transcript shows the data from every W-2, 1099, and other information return filed under your Social Security number. You can view, print, or download it for free through your IRS Online Account, and results appear immediately.1Internal Revenue Service. Transcript Types for Individuals and Ways to Order Them
If you can’t create an online account, request the transcript by mail using Form 4506-T. Delivery takes five to ten calendar days.2Internal Revenue Service. Online Account and Tax Transcripts Can Help Taxpayers File a Complete and Accurate Tax Return The automated transcript line at 800-908-9946 works too. Have your full legal name, Social Security number, and the tax year in front of you. Transcripts for the current processing year typically become available in the first week of February.1Internal Revenue Service. Transcript Types for Individuals and Ways to Order Them
Compare the Transcript to Your W-2
Once you have the transcript, go through it box by box against the W-2. Check that Box 1 wages, Box 2 federal tax withheld, and the Social Security and Medicare wages in Boxes 3 through 6 all match. If the figures differ, one of two things happened: your employer reported different amounts to the IRS than they printed on your copy, or the W-2 was altered after it was issued. Either explanation has to be resolved before filing.
The transcript reflects what the employer reported, not necessarily what they should have reported. That’s why the pay stub check below still matters even when the transcript and W-2 agree.
Check the Math Against Your Final Pay Stub
Before pulling any transcript, a quick math check against your final pay stub of the year will catch most errors. Year-to-date gross earnings on the last pay stub should closely align with Box 1, though they won’t always match exactly because Box 1 excludes pre-tax deductions like 401(k) contributions and health insurance premiums.
For Social Security tax in Box 4, multiply Social Security wages in Box 3 by 6.2%. For 2026 that rate applies only to the first $184,500 of wages, so if you earned more, Box 3 should cap at $184,500.3Social Security Administration. What Is the Current Maximum Amount of Taxable Earnings for Social Security Medicare tax in Box 6 should equal 1.45% of Medicare wages in Box 5, with no cap.4Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates If your wages exceeded $200,000, an additional 0.9% Medicare tax should have been withheld on everything above that threshold.
If the math doesn’t work, call your employer’s payroll department before filing. Payroll can confirm whether the W-2 matches their internal ledger and issue a corrected form if it doesn’t.
Visual Red Flags on a W-2 You Received From Someone Else
When you’re reviewing a W-2 handed to you by a borrower, tenant, or job applicant, a few visual checks can flag obvious fakes before you go further. Authentic W-2s follow a standardized IRS layout: Box 1 shows total taxable wages, Box 2 shows federal income tax withheld, Boxes 3 through 6 cover Social Security and Medicare, and Boxes 15 through 20 handle state and local tax.5Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026)
- Formatting inconsistencies. Professional payroll software produces uniform fonts and clean alignment. Mismatched fonts, uneven spacing, or visible editing artifacts suggest the document was altered.
- Math that doesn’t add up. Run the Social Security and Medicare calculations above. Fabricated W-2s frequently get the withholding percentages wrong.
- Truncated SSNs in the wrong place. Employers may truncate an employee’s SSN on the employee copy as XXX-XX-1234, but the EIN in Box b should always appear in full as a nine-digit number in the XX-XXXXXXX format. A truncated EIN on an employee copy is unusual and worth questioning.6Internal Revenue Service. 21.7.13 Assigning Employer Identification Numbers (EINs)
- Spelling errors. Misspelled employer names or addresses are a giveaway. Legitimate payroll systems pull that data from registration records.
Visual inspection alone will never confirm authenticity. It catches sloppy fakes; a well-made forgery will pass. Real verification means comparing the W-2 against independently filed records.
How Lenders Verify W-2 Income Through IVES
Mortgage lenders and other financial institutions don’t take a borrower’s W-2 at face value. They use the IRS Income Verification Express Service to pull transcripts directly from IRS records and compare them against what the borrower submitted. This is the standard fraud-detection step in mortgage underwriting.
IVES participants submit requests using Form 4506-C, the IVES Request for Transcript of Tax Return, which the borrower must sign to authorize the disclosure.7Internal Revenue Service. Income Verification Express Service (IVES) The IRS charges a $4 fee per transcript.8Internal Revenue Service. IRS Income Verification Express Service (IVES) FAQs Transcripts through the online system arrive in real time after the taxpayer approves the request; the older fax-based option takes two to three business days.9Internal Revenue Service. Income Verification Express Service for Participants
If the IVES transcript doesn’t match a borrower’s W-2, the lender will typically pause the application and ask for an explanation. Altered or fabricated W-2s almost always get caught here, because the lender is comparing borrower-supplied documents against data the IRS received directly from the employer.
Employer SSN Checks Through the SSA
Employers verify employee Social Security numbers through the SSA’s Business Services Online portal, which hosts the Social Security Number Verification Service.10Social Security Administration. Business Services Online (BSO) SSNVS accepts names and SSNs individually or in bulk and returns a match or no-match result.11Social Security Administration. BSO Suite of Services A no-match isn’t automatically fraud. It could be a typo, an unreported name change, or a data entry error. When it happens, ask the employee to check their card and correct any discrepancy.
SSNVS has strict limits. It exists only for verifying SSNs of current or former employees for W-2 wage reporting. Using it to screen job applicants before hiring is illegal, as is using it for background checks, credit checks, mortgage applications, or identity verification.12Social Security Administration. Social Security Number Verification Service Pamphlet It also only confirms whether a name and SSN combination matches SSA records; it does not verify wages, confirm employment, or validate any dollar amounts. For income figures, you need an IRS transcript, not an SSA match.
If Your W-2 Is Wrong or a W-2c Arrives
Start with your employer. Most W-2 errors are data entry mistakes that payroll can fix by issuing a Form W-2c, Corrected Wage and Tax Statement.13Internal Revenue Service. Form W-2c – Corrected Wage and Tax Statement The W-2c shows two columns for each field, “Previously reported” and “Correct information,” so you can see exactly what changed. Compare the “Correct information” column against your Wage and Income Transcript; the transcript may take a few weeks to reflect the correction. If the corrected amounts change your tax liability, file an amended return using Form 1040-X and attach Copy B of the W-2c.
If your employer doesn’t respond or refuses to correct the form by the end of February, call the IRS at 800-829-1040 or visit a Taxpayer Assistance Center. The IRS will contact your employer and request a corrected form within ten days. If tax season is close and you still don’t have a corrected W-2, the IRS will send Form 4852 as a substitute. You estimate your wages and withholding based on your final pay stub and file with Form 4852 attached. Using it can delay your refund while the IRS verifies the numbers, and you should keep a copy until you start receiving Social Security benefits in case questions arise about that year’s earnings.14Internal Revenue Service. W-2 – Additional, Incorrect, Lost, Non-Receipt, Omitted
Reporting Suspected W-2 Fraud
If you receive a W-2 from an employer you never worked for, or you discover someone filed a return using your Social Security number, file Form 14039, Identity Theft Affidavit. You can complete it online or print and mail it. The IRS will investigate, clear the fraudulent activity from your account, and assign you an Identity Protection PIN for future filings.15Internal Revenue Service. When to File an Identity Theft Affidavit
If you suspect an employer is intentionally filing false W-2s, report it using Form 3949-A, Information Referral. The form covers alleged tax law violations including false or altered tax documents and can be filled out online at IRS.gov.16Internal Revenue Service. About Form 3949-A, Information Referral