Minnesota IFTA Tax Rate — 2026

How Minnesota IFTA tax is calculated

For every gallon of diesel your truck "burned" inside Minnesota during the quarter, you owe $0.3260 in IFTA tax. The number of taxable gallons isn't the gallons you bought there — it's the miles you drove inside Minnesota divided by your fleet's average miles-per-gallon for the whole quarter.

Your IFTA return then nets that against the Minnesota fuel-tax you already paid at the pump on gallons purchased inside the state. If you ran more Minnesota miles than you bought Minnesota fuel, you owe the difference. If you bought more Minnesota fuel than you ran Minnesota miles, you get a refund or credit.

Common Minnesota IFTA filing questions

• Do I file IFTA in Minnesota if my home base is here? If your IFTA base jurisdiction is Minnesota, you file your quarterly return with the Minnesota Department of Revenue (or equivalent). Your filing covers every IFTA jurisdiction you ran in, not just Minnesota.
• What if I only drove a few miles through Minnesota? Every IFTA mile counts, even if you only crossed the state. Track them on your trip sheet or ELD report — you'll owe (or get refunded) Minnesota's share whether you bought fuel here or not.
• What if Minnesota fuel is cheaper than the IFTA tax? The IFTA rate above is what you owe per gallon "consumed" in Minnesota. The pump price already includes Minnesota's state fuel tax — that's what gets credited on your return. If you bought all your fuel in a low-tax state and drove all your miles in Minnesota, you'll owe the full Minnesota rate on those gallons at filing time.

Minnesota IFTA filing deadlines

IFTA returns are due quarterly across all 48 contiguous U.S. states, including Minnesota:

• Q1 (Jan–Mar): due April 30
• Q2 (Apr–Jun): due July 31
• Q3 (Jul–Sep): due October 31
• Q4 (Oct–Dec): due January 31

Late filings collect penalties even if you owe nothing — some states charge $50 minimum per late return. File on time even if your net due is $0.