South Dakota Capital Gains Tax Calculator 2025

Use this free calculator to estimate capital gains tax in South Dakota, including federal rates, NIIT when applicable, and South Dakota's state treatment (no state capital gains tax).

State treatment: No state capital gains tax·Official source ↗

Capital Gains Calculator

Federal · NIIT · All 50 states

2026 ratesIRS verified

Follow the three steps, save the sale, then calculate. Required fields are marked with *.

Your tax profile

These apply to every sale in this estimate.

Tax year

Filing status

State

Annual taxable income (before these gains)

Capital loss carried from prior years

What you sold

Prices and quantity for this lot. Give it a name if you will add more than one sale.

Asset type

Asset name

Buy price

Sell price

Quantity / units

Selling expenses

Repurchased within 30 days (wash-sale check)

When you bought and sold

The IRS uses these dates to decide short-term vs long-term rates.

Buy date

Sell date

Next: Save this sale to the order log, then click Calculate now. Tax results do not update until you calculate.

Order log

Sales included in this tax estimate.

Please fill in the details to see your results. Follow the three steps on the left, then save a sale here.

South Dakota capital gains tax overview

South Dakota capital gains tax planning starts with the federal rules, then layers on South Dakota's own treatment (no state capital gains tax). This calculator estimates both so you can see a combined effective rate before you sell stocks, crypto, real estate, or other capital assets.

Federally, short-term gains (held one year or less) are taxed as ordinary income, while long-term gains generally use 0%, 15%, or 20% preferential rates for tax years 2025 and 2026. High earners may also owe the 3.8% Net Investment Income Tax when MAGI exceeds the IRS threshold for their filing status.

South Dakota does not levy a state income tax on capital gains, so the state line on your estimate should be $0. Federal tax and NIIT can still apply. This makes South Dakota attractive for investors comparing after-tax outcomes across states, but moving solely for tax reasons involves many non-tax factors.

South Dakota figures in this model are drawn from the official source we cite for the state: https://dor.sd.gov/. Confirm the current-year statute or agency page before you file — rates and special rules can change.

Use the calculator above with filing status and income to stack federal long-term or short-term tax, NIIT, and South Dakota state tax. Compare nearby states from the links below, review our methodology for data sources (including South Dakota's official reference), and consult a CPA before filing. This page is educational and not tax advice.

South Dakota rate snapshot

Category	zero
Summary	No state capital gains tax
Abbreviation	SD
Flat / modeled rate	0.00%
Top / modeled rate	0.00%

Always verify rates with theSouth Dakota revenue agencyand review ourmethodology. Not tax advice.

FAQ

South Dakota FAQs

Does South Dakota tax capital gains at the state level?

No. South Dakota does not levy a state income tax on capital gains in our model, so the state line of your estimate is $0. Federal short-term and long-term capital gains tax, and the 3.8% Net Investment Income Tax when MAGI exceeds the IRS threshold, can still apply.

If I live in South Dakota, do I still owe federal capital gains tax?

Yes. South Dakota's $0 state tax does not change federal treatment. Ordinary rates apply to short-term gains; preferential 0%/15%/20% rates generally apply to qualifying long-term gains. Federal short-term and long-term capital gains tax, and the 3.8% Net Investment Income Tax when MAGI exceeds the IRS threshold, can still apply.

How should I use this South Dakota calculator?

Enter your buy/sell prices, dates, filing status, and other taxable income to estimate federal tax and NIIT. The South Dakota state amount should remain $0. Confirm residency and any local rules with a licensed CPA before filing.

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