Additional Medicare Tax Calculator 2026
Updated for the 2026 tax year · Last updated June 13, 2026
Additional Medicare tax (2026)
$450
0.9% on $50,000 above the $200,000 threshold
The Additional Medicare Tax is 0.9% on wages and self-employment income above $200,000 for single filers. Employers withhold it once your pay passes $200,000, regardless of filing status; any difference is settled on your return.
About this calculator
High earners owe an extra 0.9% Medicare tax on wages and self-employment income above a threshold. This calculator shows your 2026 Additional Medicare Tax and the income subject to it.
FAQ
Who pays the Additional Medicare Tax?
Anyone with wages or self-employment income above $200,000 (single), $250,000 (married filing jointly), or $125,000 (married filing separately) owes 0.9% on the excess.
Does my employer withhold it?
Yes — employers withhold the 0.9% once your wages pass $200,000, regardless of filing status. Any over- or under-withholding is reconciled on your tax return.
Is the threshold indexed for inflation?
No. The $200,000 / $250,000 thresholds are set by statute and have not changed since the tax began in 2013.
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2026 federal figures from IRS Rev. Proc. 2025-32 and Notice 2025-67; SSA wage base. Estimates for guidance only, not tax advice.