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Verified May 2026

How to Calculate Sales Tax in St. Louis County, Minnesota

Step-by-step guide with current rates, filing rules, and exemptions verified March 2026

Current St. Louis County Sales Tax Rate

Jurisdiction Rate
Minnesota State Sales Tax 6.900%
County Sales Tax 0.100%
Special District Tax 0.400%
Total Combined Rate 7.500%
← View full rate breakdown for St. Louis County

How to Calculate Sales Tax in St. Louis County

  1. 1

    Find the combined rate

    The combined sales tax rate in St. Louis is 7.500%. This equals: Minnesota state rate of 6.900% + County 0.100%.

  2. 2

    Convert the percentage to a decimal

    7.500 ÷ 100 = 0.0750

  3. 3

    Multiply by your purchase amount

    Example: $100.00 × 0.0750 = $7.50 in sales tax

  4. 4

    Add tax to the original price

    $100.00 + $7.50 = $107.50 total cost

What's Taxable in Minnesota?

Most tangible personal property is taxable in Minnesota. Check with the Minnesota Department of Revenue for specific exemption categories.

Do You Have Nexus in Minnesota?

Economic Nexus Threshold

If your business has over $100,000 in annual Minnesota sales or 200 transactions, you are required to collect and remit Minnesota sales tax. This applies to out-of-state remote sellers too.

Expert Sales Tax Tips for St. Louis

Out-of-State Sellers

Selling into Minnesota from out of state? Register before you cross the $100,000 threshold to avoid back taxes and penalties.

Frequently Asked Questions

File online at the Minnesota Department of Revenue website. Deadlines vary by filing frequency. Late filing typically incurs a penalty of 10–25% of unpaid tax.
Prescription drugs are commonly exempt in Minnesota. Check the Department of Revenue for a full exemption schedule.
Late sales tax filing in Minnesota typically results in a penalty of 10–25% of the unpaid tax amount, plus monthly interest charges. File on time to avoid these costs.
Yes. Submit a refund claim to the Minnesota Department of Revenue. Refunds are typically processed within 60–90 days of a valid claim.
Yes, if you exceed $100,000 in annual sales or 200 transactions in Minnesota, you must register and collect sales tax — regardless of where your business is based.
← Back to St. Louis County Sales Tax Rates Use the Sales Tax Calculator →

Sales Tax Calculator

Using 7.500% rate for St. Louis

$
Tax Amount $0.00
Total with Tax $100.00

Rate applied: 7.500% combined