After you file


@complicatedtaxno wrote:

Do you know if there is a way to access breakdowns of depreciation totals for past years? I can get the totals from previous years, but not the information of what those totals are calculated from.


Can you download a PDF of your 2018 personal tax return?  And if so, is it a full PDF with all the worksheets?

If it has all the worksheets, there should be the following:

 

Depreciation Report (which tracks your depreciation)
Form 4562: Depreciation & Amortization
(Possibly) AMT Depreciation Report.