2 employees can no longer write off vehiclecommuting expenses on their itemized deductions. You may be able to receive a mileage reimbursement if your employer offers that, though it's not required by the IRS.
That's because under California law, employers must reimburse their employees for all “necessary expenditures or losses” incurred in connection with their jobs. This means your employer will be also responsible for some of your expenses if you: travel for work, use your own equipment for work, or.
The travel needs to qualify as a “business trip” You need to leave your tax home. Your tax home is the locale where your business is based. Your trip must consist “mostly” of business. The IRS measures your time away in days. The trip needs to be an “ordinary and necessary” expense. You need to plan the trip in advance.
To prove travel expenses for taxes, you should keep a record of your expenses, such as receipts, vouchers, and invoices. As a general rule of thumb, don't write off an expense unless you can prove it relates to work.