Is can i write off gas tax deductible?
TL;DR
Gas expenses can be deductible if they are directly related to business use of a vehicle. However, personal use of a vehicle is not deductible, and proper documentation is essential.
Detailed Answer
Where to Put It on the Tax Form
Schedule C, Line 9 for car and truck expenses, or Form 2106 for employee business expenses if applicable.
Real World Example
A freelance graphic designer uses their car to visit clients and attend meetings. They drove 5,000 miles for business purposes out of a total of 12,000 miles driven during the year. They spent $2,000 on gas. They can deduct $833.33 (5,000/12,000 * $2,000) as a business expense.
Calculation Required
A calculation is required for this deduction.
To calculate the deductible portion of gas expenses, determine the percentage of total miles driven for business purposes and apply that percentage to the total gas expenses. For example, if 60% of your driving is for business, you can deduct 60% of your gas expenses.
Audit Risk & Documentation Tips
Moderate audit risk. Keep a detailed mileage log showing dates, destinations, and business purposes of trips. Retain all gas receipts and maintain records of total miles driven and business miles driven. Consider using a mileage tracking app for accuracy.
IRS Reference
IRS Publication 463, Travel, Gift, and Car Expenses; IRS Publication 535, Business Expenses.
Relevant Industries
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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 25, 2025