Idaho Capital Gains Tax (2026)
Idaho capital gains tax rate: Taxed as ordinary income at up to 5.8%
Idaho taxes capital gains as ordinary income. Idaho previously had a 60% capital gains deduction on Idaho property sales, but this was eliminated in 2012. No current preferential rate.
Federal Capital Gains Rates Still Apply to Idaho Residents
All Idaho residents also owe federal capital gains tax. Federal long-term capital gains rates are 0% (income up to ~$47,025 single), 15% (income up to ~$518,900 single), or 20% (above). High earners may also owe the 3.8% Net Investment Income Tax (NIIT).
Short-Term vs. Long-Term Capital Gains in Idaho
Assets held less than one year are taxed as ordinary income at federal rates (10%–37%). Assets held over one year qualify for the preferential 0%/15%/20% federal rates. Idaho taxes capital gains as ordinary income. Idaho previously had a 60% capital gains deduction on Idaho property sales, but this was eliminated in 2012. No current preferential rate.
Planning Considerations for Idaho Investors
- Tax-loss harvesting can offset gains at both state and federal levels
- Timing asset sales to control income year and bracket placement
- Idaho taxes capital gains at Taxed as ordinary income at up to 5.8% — factor this into net-of-tax return calculations
- Qualified Opportunity Zone investments can defer federal and potentially state gains
Frequently Asked Questions
What is the capital gains tax rate in Idaho?
Idaho taxes capital gains as ordinary income. Idaho previously had a 60% capital gains deduction on Idaho property sales, but this was eliminated in 2012. No current preferential rate. Federal rates (0%, 15%, 20% for long-term gains) also apply regardless of state.
Does Idaho have a different rate for long-term vs. short-term capital gains?
Idaho does not distinguish between short- and long-term capital gains — both are taxed as ordinary income at up to 5.8%. Only federal law provides preferential long-term capital gains rates.
How do I reduce capital gains tax in Idaho?
Strategies include: holding assets over one year for federal long-term rates, tax-loss harvesting to offset gains, contributing to retirement accounts (401k, IRA), investing in Qualified Opportunity Zones, and timing sales across tax years. In Idaho, capital gains are taxed at up to Taxed as ordinary income at up to 5.8%, so these strategies reduce both federal and state tax.
Is this capital gains tax calculator free for Idaho?
Yes. Enter your gain amount, holding period, and annual income. The calculator applies both federal rates (0%/15%/20% long-term) and Idaho's Taxed as ordinary income at up to 5.8% state rate to estimate your total tax owed.