Is how to write off gas as a business expense a valid tax write-off?

Gas expenses are deductible when they are incurred for business purposes. This includes driving to meet clients, traveling between job sites, or other business-related travel. Personal commuting from home to a regular place of business is not deductible. Taxpayers can choose between deducting actual expenses, which includes gas, or using the standard mileage rate, which covers all vehicle expenses. For actual expenses, only the business-use portion is deductible. For example, if a vehicle is used 60% for business, then 60% of the gas expenses can be deducted. It's important to maintain a log of business miles driven and keep receipts for gas purchases.