Can I estimate the mileage I enter by an average of the years I have had the car? I did not keep a mileage record 2020. How do I enter the mileage?

[jspear1020]

I only worked 3mns of the tax year 2020. I did not write down the odometer at the beginning or end of the year.  I am not sure how to enter the mileage.

[ColeenD3]

You will have to calculate it the best you can. Try to reconstruct it based on routes that you took for those three months.