Schedule C Fuel Tax Credits: Nontaxable Uses & How to Claim
Common qualifying nontaxable uses
- Farming — fuel used on a farm for farming purposes
- Off-highway business use — fuel used in equipment not registered for highway use
- State & local government — exclusive use by a government unit
- Buses — certain intercity, local, and school bus uses
- Export — fuel exported from the United States
- Commercial aviation — kerosene used in commercial aviation (taxed at a reduced rate)
Each nontaxable use has its own credit reference number (CRN) and credit rate on Schedule C. You'll need records of gallons and the qualifying use to support the claim.
How to claim it on Form 720
- Report your gross fuel tax in Part I (or Part II) under the right IRS number.
- Enter qualifying nontaxable-use gallons and the CRN on Schedule C.
- The credit offsets your liability; the return nets to tax due or a refund.
Stand-alone annual claims (without a Form 720 liability) have minimum thresholds — often $100 to $750 depending on the fuel and claimant — and may instead be filed on Form 8849 or Form 4136. For the underlying rates, see the 2026 fuel excise tax rates.
FAQ
What is a Schedule C fuel tax credit on Form 720?▼
Schedule C of Form 720 is where you claim credits and refunds for fuel used in a nontaxable way — for example, fuel used on a farm, for off-highway business use, by state and local governments, by buses, or exported. The credit offsets the excise tax you report in Part I or Part II.
What are the nontaxable uses that qualify for a fuel credit?▼
Common qualifying uses include farming, off-highway business use, exclusive use by a state or local government, certain intercity and local buses, export, and use as a fuel in commercial aviation. Each use has its own credit reference number (CRN) and rate on Schedule C.
Is there a minimum amount to claim a fuel credit?▼
On Form 720 Schedule C you generally must report a liability in Part I or II to claim there. Stand-alone annual claims have minimum thresholds (often $100–$750 depending on fuel and claimant) and may instead be filed on Form 8849 or Form 4136. EasyFile720 supports the Schedule C claim lines.
Can I claim a credit and still owe tax?▼
Yes. Schedule C credits reduce your net Form 720 liability — you report gross tax in Part I/II and the credit on Schedule C, and the return nets them. You can be in a net-tax or net-refund position depending on your volumes.
Claim Schedule C credits the easy way
EasyFile720 supports all Schedule C claim lines alongside your Part I fuel liability — nontaxable uses, ultimate vendor claims, and tire credits — with IRS-authorized e-file.
Reflects the Instructions for Form 720 (Rev. June 2026) and Schedule C credit rules. General information, not tax advice. Confirm your specific nontaxable use, CRN, and claim method with a qualified advisor.
