Capital Gains Tax Calculator · South Dakota

South Dakota Capital Gains Tax Calculator 2026

South Dakota charges no state tax on capital gains — the federal 0%/15%/20% long-term brackets (plus NIIT) are the whole picture.

Data verified November 10, 2026 against official sources (see below).

Purchase Price

Sale Price

Other Taxable Income (after deductions)

Holding Period

Filing Status

Federal tax on gain

$4,500

1500.0% of the gain

South Dakota tax on gain

No state income tax

Net proceeds

$45,500

Sale price minus total tax on the gain

How South Dakota taxes this gain

South Dakota has no state income tax, so there is no state tax on this gain. Federal tax (and the 3.8% net investment income tax, when it applies) is the whole bill.

Federal capital gains rates 2026

2026 long-term capital gains brackets by filing status (taxable income)
Filing status	0% rate up to	15% rate up to	20% above	3.8% NIIT above (MAGI)
Single	$49,450	$545,500	$545,500	$200,000
Married filing jointly	$98,900	$613,700	$613,700	$250,000
Married filing separately	$49,450	$306,850	$306,850	$125,000
Head of household	$66,200	$579,600	$579,600	$200,000

Short-term gains (held one year or less) are taxed as ordinary income at the 2026 federal brackets — up to 37% — with no state tax.

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Sources and how we calculate

Published by Financial Calculator. Editorial policy. Publisher attribution, not a claim of professional review.

South Dakota figures come from the state's published 2026 tax data (rolling verification recorded in our data files). State capital-gain exclusions for specific assets are not modeled.

Figures last checked on November 10, 2026. Read our calculation methodology for data sources and update schedule.

How We Calculate & Keep This Accurate

Short-term gains are taxed as the top slice of ordinary income: tax(income + gain) − tax(income) at federal ordinary rates. Long-term gains use the 0%/15%/20% preferential brackets stacked on ordinary taxable income, plus 3.8% NIIT when MAGI crosses the threshold. South Dakota adds nothing — it has no income tax.

Published by Financial Calculator. Editorial policy. No named professional review is implied.

Primary Sources

Data & Freshness

Figures reflect 2026 tax-year data.

Last updated November 10, 2026 · Maintained by the Financial Calculator editorial team.

Read our calculation methodology.

South Dakota capital gains FAQs

Common questions about capital gains tax in South Dakota for 2026.

Does South Dakota tax capital gains?

No. South Dakota has no state income tax, so capital gains face only federal tax (0%, 15% or 20% long-term, plus the 3.8% net investment income tax above the MAGI thresholds).

What is the long-term capital gains rate for 2026?

Long-term gains (assets held over a year) are taxed federally at 0%, 15% or 20% depending on taxable income: for a single filer the 0% rate applies up to $49,450 and the 15% rate up to $545,500. A 3.8% net investment income tax can apply above $200,000 MAGI (single).

Is it worth holding an asset longer than a year?

Usually yes. Short-term gains are taxed at your ordinary federal rates (up to 37%), while long-term gains use the lower 0%/15%/20% brackets. On the example above, holding long-term saves $2,100 in federal tax on this gain alone.