Updated June 15, 2026 · 6 min read
Form W-4 tells your employer how much federal income tax to withhold from each paycheck. The 2026 W-4 has five steps, but most people only need to complete Step 1 (name and filing status) and Step 5 (sign). The other steps fine-tune your withholding so you don't owe a big bill — or hand the IRS an interest-free loan — at tax time.
Enter your name, address, Social Security number, and filing status: single (or married filing separately), married filing jointly, or head of household. Your filing status sets your standard deduction and tax brackets, so this choice matters most.
Complete this only if you hold more than one job at a time, or you're married filing jointly and your spouse also works. It corrects for the fact that each job's withholding assumes it's your only income — which otherwise leaves you under-withheld.
If your total income is under the phase-out threshold, multiply your number of qualifying children under 17 by $2,200 (the 2026 Child Tax Credit), and other dependents by $500. Enter the total. This directly lowers the tax withheld from each check.
Your W-4 isn't valid until you sign it. Give the completed form to your employer's payroll or HR — you don't send it to the IRS. You can submit a new W-4 anytime your situation changes (marriage, a new baby, a second job, a big raise).
After you submit a W-4, look at your next paycheck and confirm the federal withholding looks reasonable. Enter your salary, filing status, and dependents into the paycheck calculator and compare its federal tax estimate to your real pay stub. If they're far apart, adjust Step 3 or Step 4(c).
Complete Step 1 (filing status), Step 2 if you have multiple jobs or a working spouse, Step 3 for dependents, Step 4 for any extra income or withholding, then sign Step 5. The two-income Step 2 is the part most people miss.
Step 4(c) lets you withhold an additional flat dollar amount from every paycheck. People use it to cover income without withholding (like a side gig) or to make sure they get a refund instead of owing.
The current W-4 no longer uses allowances like 0 or 1. Instead, you claim dependents in dollars (Step 3) and can add extra withholding (Step 4c). To withhold more, leave Step 3 blank and add an amount in Step 4(c).