Are state capital gains taxes included?

We apply the top state capital gains or income rate for the chosen jurisdiction. Because a few states have surtaxes or exemptions, review the notes on the tax rates page before filing.

How are losses handled?

If this sale produces a loss, the estimate caps tax at zero. It does not calculate the annual ordinary-income deduction or carryforwards. Use the scenario planner for a preliminary loss-harvesting comparison.

Capital gains tax calculator

Model a 2026 federal and simplified state estimate for one asset sale. Enter purchase and sale details to preview holding-period treatment and tax outcomes.

Run a quick Gain Tax Calculator estimate

2026 estimate

Estimate one asset sale with 2026 federal brackets and a simplified selected state rate.

Fields marked with * are required.

1. Transaction details

Enter what you paid, what you expect to receive, and the transaction dates.

Purchase priceSale price

Purchase date

MonthDayYear

Enter the date as month, day, and four-digit year.

Sale date

MonthDayYear

Use a sale date in tax year 2026.

Advanced: transaction costs

Optional costs adjust the estimated tax basis and net gain.

Buying costsSelling costs

2. Tax profile

These details determine the federal bracket and simplified state estimate.

Taxable income excluding this gainUse taxable income before adding this transaction.Filing statusStateWe apply a simplified selected state rate, not a full state return.

Enter both prices and dates, then select a state to calculate.

What this calculator covers

Short-term vs. long-term classification based on holding period.
Federal marginal rate calculations using 2026 brackets and filing status.
State-level capital gains rates for high-impact jurisdictions.
Effective rate and tax-to-proceeds comparisons for strategic planning.

Frequently asked questions

Yes. Assets sold on or before the one-year anniversary generally use ordinary income brackets, while later sales use the 0%, 15%, or 20% long-term brackets for the selected filing status.