How much Connecticut tax will I owe on a capital gain?

Estimate Connecticut tax on a capital gain for 2025 or 2026 by entering gain amount, holding period, and residency allocation. Connecticut generally taxes gains as ordinary income, so the tool applies Connecticut rates to estimate the state tax impact.

How this calculation works

Applies Connecticut income tax rates to the gain amount.
Adjusts for residency allocation when applicable.
Summarizes estimated tax and effective rate on the gain.

Common mistakes and caveats

Loss carryovers and special exclusions are not modeled.
Local taxes are not included.
Final treatment depends on your full Connecticut return.

FAQ

Does Connecticut have a special long-term capital gains rate?

Connecticut generally taxes capital gains as ordinary income.

Last updated & sources

Last updated January 27, 2026.

TaxGuide Pro provides free state and federal tax calculators for individuals, freelancers, and small businesses.