This answer might be helpful for you.
This means that the Depreciation Allowed, which includes all prior
years depreciation, is larger than the business basis of the vehicle.
This is sometimes caused because the prior depreciation is incorrect.
Compare your business basis, if your vehicle originally cost $20K and is
used 50% for business the business basis is $10K, to the Depreciation
Allowed/Allowable.
This sometimes happens if no prior depreciation was transferred from
your prior year’s input. Pay particular attention to the Sec 179
Depreciation screen, if there is an entry here, it could be entered as
the prior depreciation causing an error.
Revisit your current return’s
asset entries; ensure that the prior year’s depreciation is correct and
less than the business basis of the asset. You can see the prior
depreciation on the Prior Depreciation screen in the program
