Get your taxes done using TurboTax

When you use the desktop version, we don't have a copy of your return.  If your 2020 pdf shows all the depreciation worksheets, you have the information needed to do a tax return-just add new purchases. The worksheets will show every asset, date placed in service, basis, depreciation method and how long it is being depreciated.

If your 2020 does not show every asset, look backwards to 2019. Take a look at your Form 4562. Line 17 shows the total of all depreciation for items already in service. Line 18 is for items placed in service that year. You can look at each 4562 to determine when assets were placed in service and their time period.