Q4 2026 IFTA diesel rate
Florida IFTA fuel tax rate, Q4 2026
FLFlorida · diesel$0.4097/gal
Unchanged from Q3 2026.
Checked 2026-10-14 against floridarevenue.com, Florida's own published rate.
Calculate Florida for Q4 2026Free. No account.
What you owe Florida
IFTA apportions your fuel by miles. Divide total miles by total gallons for fleet MPG, turn your Florida miles into taxable gallons, subtract the tax-paid gallons you bought in Florida, and multiply by $0.4097.
Example: 1,000 miles in Florida at 6.5 MPG is 153.85 taxable gallons. With 100 tax-paid gallons bought there, 53.85 × $0.4097 = $22.06 owed to Florida.
This rate is for diesel, Q4 2026. You still file with your base jurisdiction; keep your trip records and receipts.