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TAX-FUNDAMENTALS5 MIN READ

W-4 Change After a Life Event

Estimate an additional per-paycheck withholding amount after a second job changes annual tax exposure.

Tara expects $18,000 from a second job and estimates a $3,600 federal withholding gap with 24 main-job paychecks remaining. Withholding adjustment: trigger, estimate gap, spread across remaining pay periods, verify on the next paystub. Assuming the new employer and old employer coordinate automatically can leave the taxpayer underwithheld. Name the trigger Second job adds $18,000 of income not reflected in the old W-4 forecast The old withholding instruction was built for a different income picture. Estimate the gap Projected additional federal tax gap = $3,600 This number should come from an estimator, worksheet, or adviser review, not a guess. Spread…

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