State and local rate guide

Idaho Reverse Sales Tax Calculator

Idaho's 6% state sales tax combines with an average 0.03% local rate, producing a 6.03% population-weighted average. Enter a receipt total below to separate its pre-tax price from the included tax.

Use the ID calculator See the formula

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

State rate6%

Avg. local rate+0.03%

Average combined6.03%

National rank#37

Calculate in seconds

Enter the total you paid and the tax rate

Total Amount (with tax)

The final price you paid

Sales Tax Rate (%)

Idaho average combined rate

Reverse-tax formula

Divide the total by 1.0603

This removes the 6.03% average combined rate without incorrectly subtracting the percentage from the final total.

Original price = Total paid / 1.0603

What the numbers mean

Using the right Idaho rate

Choose the right Idaho rate

Use 6.03% for a statewide estimate. For an actual purchase, the combined city, county, and district rate on the receipt is more accurate than either the 6% base rate or the statewide average.

Where Idaho sits nationally

With an average combined rate of 6.03%, Idaho ranks #37 from highest to lowest, placing it near the middle of the national range.

Need an official rate?

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

Visit ID tax authority

Worked examples

Idaho reverse sales tax examples

These examples start with the final amount paid and calculate backward to the original price. Each row uses the 6.03% statewide average.

Total paid	Rate used	Original price	Included tax
$50.00	6.03%	$47.16	$2.84
$100.00	6.03%	$94.31	$5.69
$250.00	6.03%	$235.78	$14.22
$500.00	6.03%	$471.56	$28.44

Local rate shortcuts

Major Idaho city calculators

The covered cities range from 6% in Nampa to 6% in Boise. The covered cities currently use the same combined rate.

Boise6%Open city calculator Meridian6%Open city calculator Nampa6%Open city calculator

Rate breakdown

Idaho state and average local rates

Rate component	2026 rate	How to use it
Idaho state rate	6%	Background rate before local adjustments
Avg. local rate	+0.03%	Population-weighted statewide estimate
Average combined rate	6.03%	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

Idaho Sales Tax Questions

What sales tax rate should I use for Idaho?

Use the exact combined rate from the receipt when possible. The 6.03% population-weighted average is best used as an estimate when the local rate is unknown.

How do I remove Idaho sales tax from a total?

Divide the tax-inclusive total by 1.0603. The result is the original price before the 6.03% average combined tax was added.

Does Idaho have local sales taxes?

Idaho's population-weighted local rate is 0.03%. Actual city, county, and district rates can be higher or lower than that average.

Is the 6.03% Idaho rate exact for every purchase?

No. It is a statewide population-weighted average as of July 1, 2026. Use the purchase location and official Idaho State Tax Commission guidance when accuracy is required.

Continue exploring