Tax Calculator 2026
Estimate Your Federal Income Tax 📑 | Self-Employment | Quarterly | Capital Gains | Updated for 2026 OBBBA Act
📊 2026 Income Tax Estimator
✨ New 2026 Deductions (OBBBA Act)
What is the 2026 Tax Calculator?
This Tax Calculator Suite helps you estimate your federal income tax liability for 2026, including the new deductions from the OBBBA Act (overtime, tip income, car loan interest). It includes specialized calculators for self-employment tax (SECA), quarterly estimated payments (1040-ES), capital gains, and W-2 + 1099 income stacking.
2026 Federal Income Tax Brackets
- 10%: $0 – $11,600
- 12%: $11,601 – $47,150
- 22%: $47,151 – $100,525
- 24%: $100,526 – $191,950
- 32%: $191,951 – $243,725
- 35%: $243,726 – $609,350
- 37%: $609,351+
- 10%: $0 – $23,200
- 12%: $23,201 – $94,300
- 22%: $94,301 – $201,050
- 24%: $201,051 – $383,900
- 32%: $383,901 – $487,450
- 35%: $487,451 – $731,200
- 37%: $731,201+
2026 Standard Deductions & OBBBA Act Deductions
- Standard Deduction: $15,750 (Single), $31,500 (Married), $23,625 (Head of Household)
- Overtime Income Deduction: Tax-free overtime pay (new for 2026)
- Tip Income Deduction: Tax-free tip income (with phaseouts)
- Car Loan Interest Deduction: New deduction for auto loan interest
- Extra Seniors' Deduction: Additional deduction for age 65+
Frequently Asked Questions
What is the difference between marginal and effective tax rate?
Marginal tax rate is the rate you pay on your next dollar of income (your tax bracket). Effective tax rate is your total tax divided by total income — a more accurate picture of your overall tax burden.
How is self-employment tax calculated?
Self-employment tax is 15.3% (12.4% Social Security + 2.9% Medicare) on net earnings. You can deduct half of this tax when calculating your income tax.
When are 2026 quarterly estimated tax payments due?
April 15, 2026 | June 15, 2026 | September 15, 2026 | January 15, 2027
What is the safe harbor rule for estimated taxes?
You won't owe a penalty if you pay at least 90% of your current year tax or 110% of your prior year tax (100% if prior year AGI under $150,000).
What are the 2026 long-term capital gains rates?
0% for income up to $48,350 (single) / $96,700 (married). 15% for income up to $533,400 (single) / $600,000 (married). 20% above that. Add 3.8% NIIT for high earners.
💡 Pro Tip: Use this calculator quarterly to avoid underpayment penalties. If you have both W-2 and 1099 income, the W-2 + 1099 Stacking tab shows your true marginal rate on side hustle earnings — often much higher than you think!