THE STRATEGY TOOL

Withholding Gap Checker

Total extra dollars from Line 4(c), not your regular withholding.
Estimated tax owed on side income$0
Already covered by extra withholding$0
Your gap$0

This is a planning estimate, not a tax return — it assumes your side income is your only untaxed income and uses a flat SE tax rate without adjusting for a Social Security wage base. Talk to a tax pro before you rely on this for filing.

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