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Crypto & tax · CT

Connecticut Crypto Tax Calculator

Estimate your 2025 federal and Connecticut state tax on crypto capital gains, with FIFO, LIFO, or HIFO cost basis.

Cost-basis method — changes which lots are sold
Transactions4
$
$
$
$
Filing status
Other taxable income Excluding crypto
$
Estimated tax owedFIFO
$2,465
short-term gains$3,000
long-term gains$8,000
short-term tax$660
long-term tax$1,200
CT state tax$605
total gains
$11,000
estimated tax
$2,465
effective rate
22.4%

Crypto capital-gains tax in Connecticut

Connecticut has seven brackets from 2% to 6.99% for 2025; the bottom two rates were cut to 2% and 4.5% starting in 2024 and are unchanged for 2025. The state has no standard deduction, and its personal exemption phases out so steeply with income that it is not modeled here. Rate-recapture provisions for very high earners are also excluded from this estimate.

Common questions

How is crypto taxed in Connecticut?
At the federal level, crypto is property and gains are taxed as short- or long-term capital gains. At the state level, Connecticut taxes crypto capital gains as ordinary income — the same rate as your wages, with no long-term discount.
Does Connecticut have a lower rate for long-term crypto gains?
No — unlike the federal system, Connecticut does not give long-term gains a preferential state rate; they're taxed the same as short-term gains.

How we calculate this

Federal lot-matching per our crypto-tax methodology, plus 2025 Connecticut 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 Connecticut state treatment is simplified here — verify with the state Department of Revenue and a tax professional.