Life-event W-4 helper

A big life change usually means your paycheck withholding is wrong. Pick everything that changed this year and get a personalized checklist of exactly what to update on your Form W-4.

Select all that apply

Children under 17

Other dependents

Your W-4 action checklist

Want the exact dollar amount, not just the steps? Run the withholding checkup, then let's make sure your whole year is dialed in.

Get started with Stillion

General guidance, not tax advice, and not a substitute for the IRS Tax Withholding Estimator or a completed Form W-4. Your employer adjusts withholding based on the W-4 you submit; changes take effect on future paychecks only. The dependent amount shown reflects the 2026 child tax credit ($2,200 per qualifying child under 17) and $500 per other dependent, and phases out above $200,000 of income ($400,000 if married filing jointly). Confirm with a CPA before making changes, especially with multiple jobs, self-employment income, or a working spouse.