IFTA Tax Rates in Kansas (2026)

Key numbers at a glance

Kansas is a pass-through state by geography — I-70 hauling between Denver and Kansas City, I-35 running Wichita toward Oklahoma and Dallas — and every one of those miles is taxed at the Kansas rate on your quarterly IFTA return. The state's motor fuel taxes are flat cents-per-gallon figures set in statute, published by the Kansas Department of Revenue. No CPI escalator, no quarterly recalculation, no average-wholesale-price formula. What you see in January is what you pay in December.

That puts Kansas near the bottom third of states nationally — the Tax Foundation's July 2026 table lists Kansas gasoline tax at about 25 cents once small environmental fees are counted — and firmly below every neighbor except Oklahoma. A small environmental assurance fee of roughly a penny per gallon sits on top of the excise at the pump, which is why combined-rate tables show slightly higher figures than the IFTA matrix does. For filing purposes the matrix numbers are the ones that count. Compare across the country on the IFTA rates by state hub.

IFTA tax rates in Kansas

Per the Kansas Department of Revenue, motor fuel tax rates for 2026. Rates as of Q4 2026 — confirm the current official IFTA matrix before filing.

Read the table with one distinction in mind: the IFTA-reportable rates are 24 cents gasoline and 26 cents diesel, while the pump price carries the additional environmental assurance fee that funds storage-tank cleanup. A Kansas receipt will therefore show slightly more tax per gallon than your IFTA credit line for Kansas miles — the difference is small, but knowing why it exists keeps your quarterly reconciliation clean.

Fueling strategy: Kansas versus its neighbors

Four borders, one cheap neighbor, three more expensive ones. Rates below are from the current IFTA matrix (as of Q4 2026 — confirm the current official IFTA matrix).

Oklahoma is the cheapest diesel in the region at 19 cents, so southbound I-35 loads out of Wichita should top off across the line. But the bigger, more repeatable play is westbound: Colorado's diesel rate of 33.5 cents is 7.5 cents above Kansas, so filling in Goodland or Salina before the climb into Denver prepays tax at the cheaper rate on gallons you will burn in Colorado anyway. Eastbound, Missouri runs 3.5 cents higher on diesel — not worth a detour on its own, as the deadhead miles guide makes clear, but worth taking when the stop is already on your route. Run your lane through the IFTA calculator before committing to a fuel plan.

How Kansas IFTA affects your filings

Kansas-based carriers license and file through the Kansas Department of Revenue; everyone else reports Kansas lines on their base-state return. The arithmetic never changes: taxable gallons equal Kansas miles divided by truck MPG, times the rate. Drive 400 Kansas miles at 6.5 MPG and you burn 61.5 gallons — 61.5 times $0.26 is $15.99 of Kansas fuel tax. Sum each jurisdiction, subtract the tax embedded in your receipts, and the result is your net due or refund.

Because Kansas rates are flat, your quarter-to-quarter variance comes from miles and MPG, not legislation — which makes Kansas a good control state for spotting record-keeping problems. If your Kansas estimates and filed numbers drift apart, look at fuel receipts and ELD distance records first. Returns are due April 30, July 31, October 31 and January 31; late or skipped filings draw penalties of roughly $50 to $100 plus interest, and repeated misses can suspend your license. Auditors typically ask for four consecutive quarters of receipts matched to per-state miles, and the MPG calculation behind the return — mismatched paperwork is the finding that starts most assessments.