Montana Sales Tax Calculator
Montana has no statewide sales tax — its state base rate is 0%, so the tax on this page is $0 at the state level. Some local jurisdictions in the state may still levy their own taxes on specific sales, and lodging/meals taxes can apply. The rate is the Tax Foundation 2026 state base rate; this page never adds local rates.
Montana Sales Tax Calculator reference last updated · reference source
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Currency: Amounts are calculated in the currency you select; this site does not convert between currencies and does not use live exchange rates.
Dated static reference; no live data is fetched. Verify current source values and assumptions before relying on results.
What this tool does
Montana has no statewide sales tax — its state base rate is 0%, so the tax on this page is $0 at the state level. Some local jurisdictions in the state may still levy their own taxes on specific sales, and lodging/meals taxes can apply. The rate is the Tax Foundation 2026 state base rate; this page never adds local rates.
How to use the Montana Sales Tax Calculator
- Check Sales tax (%): 0.
- Check Pre-tax price: 100.
- Review the Montana Sales Tax Calculator result and its exact-value comparison table.
- Verify assumptions before applying the result.
Formula
tax=price×rate/100; total=price+tax
- amount
- Pre-tax price
- rate
- Sales tax (%)
Uses your entered combined local tax rate; not a jurisdiction tax lookup.
Worked example
Montana Sales Tax Calculator: Sales tax (%) = 0; Pre-tax price = 100. Montana has no statewide sales tax — its state base rate is 0%, so the tax on this page is $0 at the state level. Some local jurisdictions in the state may still levy their own taxes on specific sales, and lodging/meals taxes can apply. The rate is the Tax Foundation 2026 state base rate; this page never adds local rates.
Inputs
- Pre-tax price100
- Sales tax (%)0
Result
- Tax-inclusive total$100.00
- Sales tax$0.00
Montana sales tax reference (2026)
| Item | Value |
|---|---|
| State base rate | 0% |
| Tax on $100 at the base rate | $0.00 |
| Total on $100 at the base rate | $100.00 |
| Local (county/city/district) taxes | Additional — NOT included in the preset rate |
Results explained
- Tax-inclusive total
- Tax-inclusive total from the formula above. Uses your entered combined local tax rate; not a jurisdiction tax lookup.
- Sales tax
- Sales tax from the formula above. Uses your entered combined local tax rate; not a jurisdiction tax lookup.
Frequently asked questions
The state base rate is 0% (Tax Foundation 2026). Most purchases also carry county, city or district taxes on top, so the combined rate you actually pay in Montana is higher than 0%.
At the 0% state base rate alone, $100 × 0% = $0.00 of tax, a $100.00 total. Add your local rate for the real checkout figure.
No — deliberately. Local rates vary by address within the state, so this page presets only the state base rate and labels it as such. Use the main Sales Tax Calculator with your combined local rate for an exact figure.
This page makes no exemption claim beyond the base rate. Most states exempt prescription medicines and some exempt groceries, but the details are state-specific — check the Montana department of revenue list before assuming an item is exempt.
Divide the total by 1 (there is no state tax to remove) at the base rate — for a $100.00 total that returns the $100 pre-tax price. With local tax included, divide by 1 plus the combined rate instead.