Wisconsin capital gains tax estimator

Estimate Wisconsin tax impact from a single sale.

How this calculator works

Step 1 calculates your capital gain using cost basis and sale proceeds. If you provide dates, the tool classifies the holding period for reference.

Step 2 adds the gain to your other Wisconsin taxable income and applies the progressive brackets to estimate the incremental tax tied to the sale.

Step 3 shows the Wisconsin tax impact. The marginal rate depends on the bracket applied to total taxable income.

Wisconsin uses progressive brackets for capital gains and other income, so the same rates apply.

Losses are displayed for context. Check Wisconsin’s rules for how losses offset gains.

Part-year and nonresident filers should prorate Wisconsin-source income using the allocation percent on their return.

This tool estimates Wisconsin tax impact only and is not legal or tax advice.