This free tax withholding tool makes it easier update your paycheck — who should use it

Natalia Lebedinskaia | Moment | Getty Images For most filers, the tax deadline has come and gone — and if your refund or balance due was bigger than expected , it may be smart to adjust paycheck withholdings for 2026. Typically, workers ask employers for withholding changes via Form W-4 , which includes marital status, number of jobs, dependents and other details. For midyear updates, the form suggests using the IRS tax withholding estimator for the "most accurate" instructions. …