Pennsylvania IFTA Tax Rates for 2026 Q3
Official Pennsylvania diesel and gasoline tax rates for Q3 2026 - high-tier fuel tax exposure, I-80 and I-76 heavy freight corridors, and quarterly compliance for motor carriers.
Pennsylvania IFTA Rates for Q3 2026 (Jul - Sep 2026): What Carriers Need to Know
Pennsylvania assesses $0.7410 per gallon on special diesel and $0.5760 per gallon on gasoline for Q3 2026, positioning the Commonwealth within the highest fuel tax tier in the nation. As recorded in the official IFTA Inc. Tax Matrix effective July 1, 2026, commercial carriers traveling across Pennsylvania encounter some of the steepest per-gallon fuel tax charges in North America.
The Pennsylvania Department of Revenue administers the IFTA program for Keystone State-based interstate carriers. The Department oversees carrier licensing, annual credential distribution, and the processing of quarterly fuel use tax returns through its designated electronic filing systems.
Pennsylvania serves as a critical geographic bridge connecting Midwest manufacturing hubs with East Coast consumption centers. Intense heavy-haul freight moves constantly across key transit routes including Interstate 80, Interstate 76 (the Pennsylvania Turnpike), and Interstate 81. Running high gross-weight equipment across these major corridors means mileage accumulates substantial tax liabilities under Pennsylvania rates.
Because fuel taxes under IFTA accrue strictly according to jurisdiction mileage rather than points of retail purchase, carriers traversing Pennsylvania must keep comprehensive mileage records and receipts. When tax-paid purchases fail to match fuel consumed inside the state, significant net tax remittances become due upon filing.
Pennsylvania Quarterly Fuel Tax Rates — Last 4 Quarters
1. Filing PA IFTA Returns: Essentials & Deadlines
2. I-80 and I-76 Heavy Corridors: Managing High-Tier Exposure
Pennsylvania diesel at $0.7410 per gallon ranks among the highest rates in the nation, making precise corridor accounting vital for long-haul profitability.
Traversing Pennsylvania along major freight lanes like the I-80 northern corridor or the I-76 Turnpike demands systematic fuel tax planning. At $0.7410 per gallon for diesel, every 100 gallons burned inside state borders represents $74.10 in gross IFTA tax obligation. Fleets operating multi-state routes between the Midwest and Northeast must balance fuel purchase locations with actual state miles.
Auditors examine detailed trip records, looking for continuous odometer logs, verified point-to-point routes, and bona fide retail fuel receipts. Failure to produce verifiable purchase receipts means fuel bought locally cannot be credited against Pennsylvania mileage liability.
Remember that IFTA liability follows where fuel is burned, not where pump prices appear attractive. Use our calculator to evaluate your route mileage and model your net quarterly liability across Pennsylvania and bordering jurisdictions.
PA IFTA Tax Rates — Frequently Asked Questions
The IFTA Inc. Tax Matrix prints $0.7410 per gallon of special diesel for Pennsylvania for Q3 2026 (effective July 1, 2026), placing the Commonwealth among the highest tax tiers in the country.
The official Q3 2026 rate for gasoline in Pennsylvania is $0.5760 per gallon, as published by IFTA Inc.
IFTA is administered by the Pennsylvania Department of Revenue, which oversees licensing, decal issuance, quarterly returns, and audit enforcement.
No. Pennsylvania does not assess a separate surcharge line in the IFTA Inc. Tax Matrix. The printed rates of $0.7410 for diesel and $0.5760 for gasoline encompass the entire base tax figure.
Returns follow the standard IFTA quarterly calendar: April 30, July 31, October 31, and January 31. If the deadline lands on a weekend or legal holiday, it rolls to the next business day.
Interstate 80 and Interstate 76 carry massive cross-country commercial freight volumes. With Pennsylvania charging $0.7410 per gallon of diesel, miles logged across these corridors create substantial quarterly tax liabilities.
Carriers must maintain all trip sheets, mileage logs, and itemized fuel receipts for at least four years from the return filing date for Department of Revenue audits.
Carriers can use the free IFTA calculator on this site to input their Pennsylvania miles and fuel purchases to determine net tax owed or credit due.
Done looking up rates? Run the numbers.
The rate table tells you what Pennsylvania charges per gallon. The calculator turns that into your actual quarterly return, and the mileage tracker splits your miles state by state.
Browse the full 48-state rates table