Hi,
This wouldn't be on anything anyone gave you. You get it from prior years' tax returns.
Each year TurboTax computes 'regular' depreciation and 'AMT' depreciation (which in some cases is subject to recapture). So you could look through prior returns and see if you can find this. It's not something you really 'compute'. It's already in a prior return.
Hope that helps?! : )
