Forms compared
W-2 vs. W-4: Two Forms, Opposite Directions
The W-4 tells your employer how much tax to withhold; the W-2 reports what was paid and withheld. Who files each, when, and how pay stubs connect them.
Updated November 1, 2026 · Reviewed against official sources
The W-4 and the W-2 sit at opposite ends of a year of paychecks. The W-4 is an instruction from the employee to the employer: here's how much tax to withhold. The W-2 is a report from the employer to the employee and the government: here's what you were paid and what was withheld. Pay stubs connect the two.
Side by side
| Form W-4 | Form W-2 | |
|---|---|---|
| Full name | Employee's Withholding Certificate | Wage and Tax Statement |
| Filled out by | Employee | Employer |
| Given to | Employer, not the IRS | Employee (Copies B, C, 2) and the SSA (Copy A) |
| When | At hire and whenever your situation changes | Once a year, by February 1, 2027 for 2026 |
| What it controls or reports | How much federal income tax to withhold each paycheck | Total wages, tips and taxes withheld for the year |
| Signature | Employee, under penalties of perjury | None from the employee |
| Where it shows up on a stub | Filing status and the withholding it produces | The December stub's YTD column should match it |
How the forms connect through the year
- Hire date. The employee completes a W-4. The 2026 form asks for filing status (Step 1), multiple jobs (Step 2), dependents and credits (Step 3), and other adjustments (Step 4), then the signature in Step 5.
- Every payday. The employer runs the W-4 entries through IRS Publication 15-T to figure federal income tax for that paycheck. The pay stub shows the result, and its YTD column adds it up.
- Life changes. The employee files a new W-4. The employer must apply it no later than the start of the first payroll period ending on or after the 30th day after receiving it. The stubs from then on reflect the new withholding.
- Year-end. The employer totals the year, and those totals become W-2 boxes. Box 2 is the sum of every federal income tax line on every stub, whatever W-4 was in effect at the time.
Worked example: a mid-year W-4 change
An employee earns $2,000 biweekly in 2026. For the first 13 pay dates, her W-4 says Single with no other entries. In July she becomes head of household and files a new W-4 claiming $2,200 in Step 3 for one qualifying child under 17.
| Pay dates | W-4 in effect | Federal tax per paycheck | Subtotal |
|---|---|---|---|
| 1–13 | Single, no adjustments | $156.15 | $2,029.95 |
| 14–26 | Head of household, Step 3 $2,200 | $30.31 | $394.03 |
| W-2 Box 2 | $2,423.98 |
The W-2 doesn't mention either W-4. It reports what was actually withheld. If the July stub didn't drop to about $30, the new W-4 wasn't applied, and that's the moment to ask payroll. In January it's too late to fix withholding for the year.
The $30.31 comes from the 2026 head of household table: $2,000 × 26 = $52,000, minus the $8,600 standard adjustment, gives $43,400. The table's tentative withholding is $2,988 a year, or $114.92 a paycheck. Step 3's $2,200 ÷ 26 = $84.62 is subtracted, leaving $30.31.
Common mix-ups
"I need my W-4 to file my taxes." You don't. You file with the W-2. The W-4 stays with your employer.
"My W-2 is wrong because I changed my W-4." A W-4 change alters future withholding, not past amounts. A W-2 that matches the stubs is correct, even if the withholding wasn't what you wanted.
"Claiming exempt means no taxes." Exempt means no federal income tax withholding. You may claim it only if you had no federal income tax liability last year and expect none this year. Social Security and Medicare are still withheld. An exempt W-4 also expires: for 2026 you need a new one by February 16, 2027, or your employer withholds as if you're single with no adjustments.
"No W-4 means no withholding." It means the opposite. Without a W-4, the employer withholds as Single or Married filing separately with no other entries.
Where PayStubShop fits
Our pay stub generator applies 2020-or-later W-4 entries, including Steps 2, 3, 4(a), 4(b) and 4(c), using the 2025 or 2026 Publication 15-T percentage method, and shows the withholding on a free preview. If the W-4 changed mid-year, build the stubs before and after the change with the right entries, and the YTD column carries both. At year-end, our W-2 generator turns those totals into employee and employer copies at $14.99 per employee.
For the 2026 form itself, line by line, see our W-4 in 2026 guide.
Frequently asked questions
Do I file my W-4 with the IRS?
No. You give Form W-4 to your employer, who uses it to figure withholding and keeps it. The W-2 is the form that goes to the government: your employer files Copy A with the Social Security Administration.
When do I get a W-2 and when do I fill out a W-4?
You fill out a W-4 when you start a job and whenever your situation changes. Your employer gives you a W-2 once a year, by February 1, 2027 for 2026 wages.
If I change my W-4 mid-year, does my W-2 change?
The W-2 reports what was actually withheld. A mid-year W-4 change affects withholding from the next payroll on, so Box 2 on the W-2 will be the sum of withholding under both versions.
What happens if I never turn in a W-4?
Your employer withholds as if you checked Single or Married filing separately and made no other entries. That's often more withholding than you need if you're married or have dependents.
Sources
- IRS Form W-4 (2026), Employee's Withholding Certificate, accessed Nov 1, 2026
- IRS Publication 15 (2026), Employer's Tax Guide, accessed Nov 1, 2026
- IRS 2026 General Instructions for Forms W-2 and W-3, accessed Nov 1, 2026
- IRS Publication 15-T (2026), Federal Income Tax Withholding Methods, accessed Nov 1, 2026
General information, not legal or tax advice.
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