Can I write off gas for work?

If you are self-employed or a business owner, you can deduct the cost of gas for business-related driving. This includes traveling to meet clients, pick up supplies, or any other trip that directly supports your business. However, commuting from your home to your regular place of business is generally not deductible. If you're an employee, you can no longer deduct unreimbursed employee expenses, including the cost of gas, due to changes from the Tax Cuts and Jobs Act. You have two options for deducting vehicle-related expenses: the standard mileage rate (which includes gas) or actual car expenses (including gas, oil changes, repairs, insurance, etc.). You must keep accurate records to substantiate your deductions.