State and local rate guide

South Dakota Reverse Sales Tax Calculator

South Dakota's 4.2% state sales tax combines with an average 1.91% local rate, producing a 6.11% population-weighted average. Enter a receipt total below to separate its pre-tax price from the included tax.

Use the SD calculator See the formula

Rate averages as of July 1, 2026. Source: Tax Foundation.

State rate4.2%

Avg. local rate+1.91%

Average combined6.11%

National rank#36

Calculate in seconds

Enter the total you paid and the tax rate

Total Amount (with tax)

The final price you paid

Sales Tax Rate (%)

South Dakota average combined rate

Reverse-tax formula

Divide the total by 1.0611

This removes the 6.11% average combined rate without incorrectly subtracting the percentage from the final total.

Original price = Total paid / 1.0611

What the numbers mean

Using the right South Dakota rate

Choose the right South Dakota rate

Use 6.11% for a statewide estimate. For an actual purchase, the combined city, county, and district rate on the receipt is more accurate than either the 4.2% base rate or the statewide average.

Where South Dakota sits nationally

With an average combined rate of 6.11%, South Dakota ranks #36 from highest to lowest, placing it near the middle of the national range.

South Dakota-specific note

South Dakota applies its sales tax to a relatively broad range of transactions, so whether an item is taxable can matter as much as the headline rate.

Need an official rate?

Confirm product exemptions and exact local rates before filing or billing.

Visit SD tax authority

Worked examples

South Dakota reverse sales tax examples

These examples start with the final amount paid and calculate backward to the original price. Each row uses the 6.11% statewide average.

Total paid	Rate used	Original price	Included tax
$50.00	6.11%	$47.12	$2.88
$100.00	6.11%	$94.24	$5.76
$250.00	6.11%	$235.60	$14.40
$500.00	6.11%	$471.21	$28.79

Local rate shortcuts

Major South Dakota city calculators

The covered cities range from 6.5% in Aberdeen to 6.5% in Sioux Falls. The covered cities currently use the same combined rate.

Sioux Falls6.5%Open city calculator Rapid City6.5%Open city calculator Aberdeen6.5%Open city calculator

Rate breakdown

South Dakota state and average local rates

Rate component	2026 rate	How to use it
South Dakota state rate	4.2%	Background rate before local adjustments
Avg. local rate	+1.91%	Population-weighted statewide estimate
Average combined rate	6.11%	Best fallback when the exact receipt rate is unknown

State and average local rates are from Tax Foundation: State and Local Sales Tax Rates, Midyear 2026. City, county, district, and product-specific rates can differ.

Questions answered

South Dakota Sales Tax Questions

What sales tax rate should I use for South Dakota?

Use the exact combined rate from the receipt when possible. The 6.11% population-weighted average is best used as an estimate when the local rate is unknown.

How do I remove South Dakota sales tax from a total?

Divide the tax-inclusive total by 1.0611. The result is the original price before the 6.11% average combined tax was added.

Does South Dakota have local sales taxes?

South Dakota's population-weighted local rate is 1.91%. Actual city, county, and district rates can be higher or lower than that average.

Is the 6.11% South Dakota rate exact for every purchase?

No. It is a statewide population-weighted average as of July 1, 2026. Use the purchase location and official South Dakota Department of Revenue guidance when accuracy is required.

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