🧮 FREE TOOL · 2026 IRS RULES

2026 Quarterly Tax Calculator

YTD-aware quarterly estimates using 2026 IRS rules — SE tax, the 20% QBI deduction, and progressive federal brackets.

Jul–Sep 2026
Payment due Sep 15
Select Tax Quarter
Are you 65 or older?
Service business?
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This assumes you earned nothing in Q1, Q2. The estimate spreads your figures across every quarter of the year so far, so if you have been earning all along your real bill is higher than this. Sign in to enter each quarter, or pick the quarter that matches what you typed.

Once saved, manage expenses on the Expenses page — this field will auto-update.

Health insurance & retirementBoth come off before tax is calculated — most freelancers miss them

Premiums you pay yourself — not any covered by a spouse’s employer plan.

Reduces income tax, but not self-employment tax.

Found on line 24 of your 2025 Form 1040

⚡ Instant calculations · No account required · IRS 2026 compliant

15.3%
2026 SE Tax Rate
12.4% Social Security (up to $184,500) + 2.9% Medicare
20%
QBI Deduction
Section 199A deduction, made permanent at 20% by OBBBA July 2025
$16,100
Standard Deduction
Single filer standard deduction for 2026 ($32,200 married filing jointly)
4× Year
Quarterly Deadlines
Apr 15 · Jun 16 · Sep 15 · Jan 15 — missing these triggers IRS penalties
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After saving your calculation, visit the Tax Overview page to download pre-filled IRS forms, export to TurboTax, and check your filing progress.
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Calculators for specific questions

Self-Employment Tax Calculator (2026)1099 Tax Calculator (2026)Estimated Tax Calculator (2026)Safe Harbor Calculator (2026)Freelance Tax Calculator (2026)Gig Worker Tax Calculator (2026)

For informational purposes only. Consult a qualified tax professional for personalized advice. 2026 IRS figures are estimates and may be adjusted.