Can you write off how to write off gas on taxes?

Gas expenses are deductible when they are incurred for business purposes. If you use your vehicle for both personal and business purposes, you can only deduct the portion of gas expenses that relate to business use. For instance, if you drive your car 60% of the time for business, you can deduct 60% of your gas expenses. The IRS allows you to choose between the actual expense method, where you track all vehicle-related expenses including gas, or the standard mileage rate, which includes gas in its calculation. It's crucial to maintain a mileage log to substantiate the business use percentage. Gas expenses are not deductible for commuting between your home and regular place of work, as this is considered personal use.