Last year I used Special Depreciation Allowance 200DB/MQ the amount of depreciation was $15,405 on a vehicle. Last year when I looked at the Projected 2021 Depreciation report it said this year would be $11,005.

This year my system is giving me an error saying Depreciation method must be straight line if standard mileage rate was used in a prior year. But I did not use Standard I used 200DB/MQ.

Does anyone know why I am getting this error?