Q4 2026 IFTA diesel rate

Missouri IFTA fuel tax rate, Q4 2026

MOMissouri · diesel$0.2950/gal

Unchanged from Q3 2026.

Checked 2026-10-14 against dor.mo.gov, Missouri's own published rate.

Calculate Missouri for Q4 2026Free. No account.

What you owe Missouri

IFTA apportions your fuel by miles. Divide total miles by total gallons for fleet MPG, turn your Missouri miles into taxable gallons, subtract the tax-paid gallons you bought in Missouri, and multiply by $0.2950.

Example: 1,000 miles in Missouri at 6.5 MPG is 153.85 taxable gallons. With 100 tax-paid gallons bought there, 53.85 × $0.2950 = $15.88 owed to Missouri.

This rate is for diesel, Q4 2026. You still file with your base jurisdiction; keep your trip records and receipts.