Can I deduct how to write off gas as a business expense?
TL;DR
Gas expenses can be deducted as a business expense if they are directly related to business use of a vehicle.
Detailed Answer
Where to Put It on the Tax Form
Schedule C (Form 1040), Part II, Line 9 for sole proprietors, or on the appropriate business tax form for other entities.
Real World Example
A freelance photographer drives to various locations for photo shoots. The gas used for these trips can be deducted as a business expense.
Calculation Required
A calculation is required for this deduction.
Calculate the percentage of business use of the vehicle by dividing the business miles driven by the total miles driven. Multiply this percentage by the total gas expenses to determine the deductible amount.
Audit Risk & Documentation Tips
Maintain a detailed mileage log, including dates, destinations, and purpose of each trip. Keep receipts for all gas purchases. This documentation will support your deduction in case of an audit.
IRS Reference
IRS Publication 463: Travel, Entertainment, Gift, and Car Expenses
Relevant Industries
Popular Related Pages
Disclaimer: This is for informational purposes only and should not be construed as tax or legal advice. Always consult your tax advisor.
Page created on July 15, 2025