Utah capital gains tax estimator

Estimate Utah 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 Utah taxable income and applies the flat 4.55% rate to estimate the incremental tax tied to the sale.

Step 3 shows the Utah tax impact. The marginal rate is the same flat rate applied to total taxable income.

Utah uses a flat rate for capital gains and other income, so the same rate applies.

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

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

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