Montana Crypto Tax Calculator
Estimate your 2025 federal and Montana state tax on crypto capital gains, with FIFO, LIFO, or HIFO cost basis.
Crypto capital-gains tax in Montana
Montana has two brackets for 2025 — 4.7% up to $21,100 single / $42,200 joint and 5.9% above — computed from federal taxable income, so the federal standard deduction effectively applies. Long-term capital gains get preferential rates of 3.0% and 4.1%, so this estimate overstates tax on large long-term gains. A 2025 law cuts the top rate to 5.65% in 2026 and 5.4% in 2027, but 2025 rates are unchanged.
Common questions
How is crypto taxed in Montana?
Does Montana have a lower rate for long-term crypto gains?
How we calculate this
Federal lot-matching per our crypto-tax methodology, plus 2025 Montana state treatment of capital gains. Estimates only — not tax advice.
Estimates for general informational purposes only; not tax advice. Crypto tax rules are complex and Montana state treatment is simplified here — verify with the state Department of Revenue and a tax professional.