Depreciation for Business Use % for Farm truck is not correct.

[GrapeMike]

Purchased new truck 11/21.  Mileage is entered as  64% business, but TurboTax is calculating it by the calendar year on the car and truck worksheet and is only reflecting 2 months for special allocation(line 10b) at 10.42% (line 9).  It's not letting me get the whole (64%) special depreciation that I want to take this year.  How can I get the whole special depreciation to show for 2021?  Thank you for any help. 

[AmeliesUncle]

When it asks you if you kept track of personal miles, say YES.

[GrapeMike]

Thank you for the reply, but he tried that and it didn't change anything.  He's still trying to figure it out.  

[PaulD CPA]

Agreed, answer the mileage tracked for personal purposes question as YES