Incorrect depreciation?

[scavabird]

We converted our primary residence to a rental this year and it seems like TurboTax is calculating depreciation differently than I have read it should.

Our cost basis at purchase (minus land price) is 147,979,  so using straight line depreciation at 27.5 years I calculate that depreciation should be 5,381 dollars per year.  Since we put it into service June 15th for 54% business use it should be 2,905 dollars of depreciation this year,  but TT suggests 1,586.  Any idea why?

[AmeliesUncle]

Don't enter 54%.  It was 100% business use from the date you "placed it in service". 

The "placed in service" date already prorates things, so by entering 54% you are essentially prorating it TWICE.

[scavabird]

Thank you,  that was exactly what I needed to know!