Q4 2026 IFTA diesel rate
Rhode Island IFTA fuel tax rate, Q4 2026
RIRhode Island · diesel$0.4000/gal
Unchanged from Q3 2026.
Checked 2026-10-14 against tax.ri.gov, Rhode Island's own published rate.
Calculate Rhode Island for Q4 2026Free. No account.
What you owe Rhode Island
IFTA apportions your fuel by miles. Divide total miles by total gallons for fleet MPG, turn your Rhode Island miles into taxable gallons, subtract the tax-paid gallons you bought in Rhode Island, and multiply by $0.4000.
Example: 1,000 miles in Rhode Island at 6.5 MPG is 153.85 taxable gallons. With 100 tax-paid gallons bought there, 53.85 × $0.4000 = $21.54 owed to Rhode Island.
This rate is for diesel, Q4 2026. You still file with your base jurisdiction; keep your trip records and receipts.