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Know your 2026 tax bill
before it arrives

A full-featured federal and state tax estimator — Social Security, capital gains, self-employment, Roth conversions, IRMAA, and more. Everything updates instantly as you type.

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Full Federal 1040
All income types, brackets, LTCG, SE tax, NIIT, AMT check
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27-State Support
CA, NY, TX, FL, OR, NJ, CO, GA, VA and more — correct 2026 rates
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Medicare / IRMAA
2026 tier table, cliff warning, annualized premium costs
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Roth Conversion
Side-by-side cost analysis with IRMAA and state tax impact
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Visual Charts
Waterfall, bracket fill, tax breakdown donut, IRMAA gauge
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Save Scenarios
Save unlimited named scenarios — sign in to keep them
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Safe Harbor Check
Know if your estimated payments are sufficient
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Live Calculations
Every number updates instantly as you type

States supported

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Not a substitute for professional tax advice. Always consult a CPA for your final return.

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