IFTA fuel tax, figured in minutes.
Enter the miles you ran and the fuel you bought in each state. You get your fleet MPG, the tax you owe or the credit you carry — no account, no spreadsheet, no shoebox math the night before the deadline.
An estimate to plan with — your base state’s official return is the final word. Reminders are free — no spam, just one simple email before each deadline.
The calculator
One row per state or province you drove in. Results update as you type.
| State / Province | Miles driven | Fuel bought (gal) | Rate / gal | Gallons used | Tax owed | Credit (tax paid) | Net | Remove row |
|---|---|---|---|---|---|---|---|---|
| Totals | 0 | 0 | 0.00 | $0.00 | $0.00 | $0.00 |
Ohio rate split — Q4 2026
Ohio cut its motor fuel tax mid-quarter for a 90-day holiday: the full rate applies through Oct 3, then $0.0001/gal from Oct 4 through Dec 31 (the holiday runs to Jan 2, 2027). Enter any Ohio driving from the first three days of October below — only those gallons price at the full rate. Leave both fields at 0 if all your Ohio miles were Oct 4 or later.
Fuel bought in Ohio on Oct 1–3 was taxed at the full rate, so it earns credit at the full rate; Ohio fuel bought Oct 4 or later earns credit at $0.0001/gal.
Paste rows in bulk (CSV)
One jurisdiction per line: TX, 4200, 520 — state or province code, miles, gallons bought. Full names work too (Texas, 4200, 520). Importing replaces the current rows.
Total miles0
Total fuel bought0 gal
Fleet MPG—
Tax owed$0.00
Credits$0.00
Surcharges & New York
Indiana charges a surcharge on gallons used in Indiana, on top of its base rate. Enter the rate from your base-state return — it isn’t folded into the rate table below.
Pre-filled from the Q4 2026 IFTA matrix for the selected fuel. Applies to gallons used in Virginia.
Pre-filled from the Q4 2026 IFTA matrix for the selected fuel. Applies to gallons used in Kentucky — edit it if your return shows a different figure.
I run in New York
Show the note about New York’s separate highway use tax (HUT).
New York HUT is separate. New York’s highway use tax is filed and paid on its own — it is not part of IFTA and is not included in this estimate. The New York figures above cover only the IFTA fuel tax. If you run New York miles, budget for HUT on top of whatever this page shows.
The worksheet is a clean one-page summary of this calculation — use your browser’s Print command to save or print it for your records.
IFTA worksheet —
| Jurisdiction | Miles | Fuel bought | Rate | Gallons used | Tax owed | Credit | Net |
|---|
Estimate only, prepared from the Q4 2026 IFTA rate matrix. Verify every figure against your base jurisdiction’s official return before filing. Keep fuel receipts and mileage records for four years — that’s the audit window.
Prepared by
Date
Unit / truck no.
How the math works
IFTA doesn’t tax where you bought fuel — it taxes where you burned it, then credits what you already paid at the pump.
Fleet MPG = total miles ÷ total fuel bought
Gallons used in a state = miles in that state ÷ fleet MPG
Tax owed = gallons used × that state’s rate
Credit = gallons bought there × that state’s rate
Net = tax owed − credit, state by state, then added up
Gallons used in a state = miles in that state ÷ fleet MPG
Tax owed = gallons used × that state’s rate
Credit = gallons bought there × that state’s rate
Net = tax owed − credit, state by state, then added up
If you end up owing
You burned more fuel in high-tax states than you bought there. The net amount is what you send in with the quarterly return, filed with your base state — it redistributes the money to the states.
If you end up with a credit
You overpaid at the pump relative to where you drove. That credit isn’t lost: on the official return it carries forward and offsets what you owe next quarter. Keep filing even in a credit quarter — an unfiled return can cost you the credit.
The special cases
- Oregon has no IFTA fuel tax at all — its rate here is always $0. Oregon charges a weight-mile tax instead, filed separately with the state. Oregon miles still count toward your fleet MPG.
- Indiana, Virginia, Kentucky add a surcharge per gallon used, on top of the base rate — handled in the surcharge fields above.
- New York adds its highway use tax (HUT) outside IFTA entirely — see the toggle above.
- Ohio’s Q4 2026 split: Ohio cut its gasoline and diesel rates mid-quarter for a 90-day holiday — the full rate through Oct 3, then $0.0001/gal from Oct 4 through Dec 31. That split is modeled here: add an Ohio row, then enter any Oct 1–3 Ohio miles in the split fields under the table and only those gallons price at the full rate. (Propane, LNG, and CNG weren’t part of the holiday — Ohio charges them the full rate all quarter.)
- Other mid-quarter changes: states occasionally suspend or cut rates mid-quarter (Georgia also did in fall 2026). Splits other than Ohio’s aren’t modeled — check your base state’s notice before filing.
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The next deadline is Jan 31, 2027 for Q4 2026 — sign up above and we’ll remind you before it lands.
Q4 2026 rate table
Every IFTA jurisdiction — 48 U.S. states plus the 10 Canadian provinces — for the selected fuel type, in US dollars per gallon. Canadian rates are the IFTA matrix’s US$ equivalents (Q4 2026 exchange rate: 1 CAD = 0.7131 USD). District of Columbia, Alaska, and Hawaii are not IFTA members.
Source: IFTA, Inc. fuel tax rate matrix, 4th quarter 2026 (rates effective Oct 1 – Dec 31, 2026), last updated Oct 27, 2026. IFTA notes the matrix is not final until Dec 4, 2026, and does not itself verify the rates member jurisdictions report. A dash means the matrix lists no rate for that fuel in that jurisdiction. Full matrix: iftach.org.