Tools · Capital Gains Tax
Arizona Capital Gains Tax Calculator (2026)
Estimate the tax on your capital gains in Arizona for 2026. Enter your gain, holding period, and other income to see federal long- or short-term tax, the 3.8% Net Investment Income Tax, and Arizona’s share, broken out line by line.
Arizona capital gains tax calculator
- Gain taxed at 0% (long-term)
- $15,550 → $0
- Gain taxed at 15% (long-term)
- $4,450 → −$668
- Federal long-term capital gains tax
- −$668
- Net Investment Income Tax (3.8%)
- $0
- Arizona income tax on gain
- −$500
- Total capital gains tax
- $1,168
Arizona taxes capital gains as ordinary income. Arizona taxes income at a flat 2.5% — the lowest flat rate among states that tax income. Its standard deduction matches the federal amount.
Federal: IRS Revenue Procedure 2025-32 (IR-2025-103) · Social Security Administration. State: Arizona Department of Revenue.
Estimate for 2026. Long-term gains are stacked on top of your other taxable income across the 0/15/20% federal breakpoints; short-term gains are taxed as ordinary income. The 3.8% Net Investment Income Tax applies once your income clears the threshold. Excludes state credits, the alternative minimum tax, and loss carryovers. This is general information, not tax advice.
How capital gains tax works in Arizona
Long-term gains (assets held more than a year) get the federal 0/15/20% rates — but the rate depends on where the gain lands once it is stacked on top of your other taxable income, so part of a gain can be taxed at 0% and the rest at 15%. Short-term gains are taxed as ordinary income. On top of that, the 3.8% Net Investment Income Tax applies once your income clears $200,000 (single) or $250,000 (married-jointly).
Arizona taxes capital gains as ordinary income, at the same rate as your wages. Arizona taxes income at a flat 2.5% — the lowest flat rate among states that tax income. Its standard deduction matches the federal amount.
This is an annual-bracket estimate, not your final return. It excludes the alternative minimum tax, loss carryovers, and state credits. It is general information, not tax advice. Federal figures: IRS Revenue Procedure 2025-32 (IR-2025-103) · Social Security Administration.
Capital gains calculators for other states
Same 2026 engine, each with its own state rules.