I cant remeber when I last started using vehicle for work

[cg-kaehler-s]

Turbo Tax only remembered 1 of my cars, I been using one for years but cant remember when I started to use it for work.

[LaShaunA3]

If you deducted this vehicle in earlier returns, check those returns to see when depreciation or mileage first began. If you can’t remember the exact date you started using the vehicle for business, use your best reasonable estimate based on records (mileage logs, service records,  or when you began that job/business).