I have been using turbotax the past number of years. How do I print off or see the calculations for items filed under the “Business use of Home” expense category ?

To do this, you would need to print off the PDF Archive of your return, and then look at the T2125 Statement of Business or Professional Activities, Part 7.

This FAQ tells you how to save/print a copy of your tax return in TurboTax Online: https://turbotax.community.intuit.ca/community/tax-return-print-save/help/in-the-online-edition-of-turbotax-how-do-i-print-a-copy-of-my-tax-return/00/873651

Yes I realize that but it does not reveal the details of my previous space calculations.  Why does Turbo Tax block me from reviewing how I did this last year?