Does Utah have a special capital gains tax rate?

No. Utah taxes capital gains as ordinary income at its flat 4.55% income tax rate. There is no reduced rate for long-term gains at the state level, so essentially every gain faces a flat 4.55% Utah tax plus the federal tax.

How are long-term federal capital gains taxed?

Long-term gains use preferential federal rates of 0%, 15%, or 20% depending on your total taxable income. The gain stacks on top of your ordinary income, so part of it may fall in the 0% band while the rest is taxed at 15% or 20%.

What is the net investment income tax?

The NIIT is an extra 3.8% federal surtax on investment income, including capital gains, for taxpayers with modified adjusted gross income above $200,000 single or $250,000 married filing jointly. It applies only to the income above that threshold.

How are short-term gains taxed in Utah?

Assets held one year or less produce short-term gains, taxed federally at your ordinary marginal rate (10% to 37%) plus Utah's flat 4.55%. Short-term gains usually cost considerably more than long-term gains.

Can I lower my Utah capital gains tax?

Holding assets longer than a year to qualify for long-term federal rates, harvesting losses to offset gains, and timing sales into lower-income years can all reduce the bill. Utah's rate is flat, so state timing matters less than federal. This tool estimates the tax but is not personalized advice.

Utah Capital Gains Tax Calculator

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Selling an investment in Utah triggers two taxes: the federal capital gains tax and Utah’s state income tax. Because Utah gives no break for long-term gains and uses a single flat rate, the state side is simply 4.55 percent of the whole gain. This calculator combines both so you can see the full cost of a sale.

How it works

The federal treatment depends on how long you held the asset. Long-term gains (held more than a year) use preferential rates that stack on your other taxable income:

0%  up to $47,025 single / $94,050 joint of total income
15% from there up to $518,900 / $583,750
20% above those thresholds

Short-term gains (held a year or less) are taxed at your ordinary federal rate. A 3.8 percent net investment income tax applies to gains above 200,000 dollars single or 250,000 dollars joint of modified AGI. Utah then taxes the entire gain as ordinary income at its flat 4.55 percent rate, with no brackets and no preferential treatment.

Example

A single filer with 80,000 dollars of other income and a 20,000 dollar long-term gain has already used the 0 percent band, so the federal gain is taxed at 15 percent (3,000 dollars). Utah adds 4.55 percent (910 dollars). Total tax on the gain is about 3,910 dollars, leaving roughly 16,090 dollars after tax.

Notes

This is a simplified model. Real returns involve loss carryovers, the exact NIIT calculation on net investment income, qualified dividends, and Utah’s taxpayer tax credit phase-outs, none of which are fully modeled here. Use it for planning and confirm with the current rules at irs.gov and tax.utah.gov.