Yes, you can include the cost of the roof with your home office expenses.
- Use the magnifying glass on the top right of TurboTax online and search "home office", and choose " Jump to home office expenses."
- Edit the business, go to home office and start/edit using pencil icon
- You will see the home office listed if you already began working on it, choose the pencil to edit, or Add if nothing was started.
- Answer the questions until you get to the screen that says "Based on this info, your simplified home office deduction is: $XYZ"
- To expense the roof, you will select "No, I want to take actual expenses." (You cannot claim the roof plus the simplified deduction)
- Continue until you get to "Home Office Asset Summary"
- On the Depreciating Your Home screen, Choose "An improvement to your home" and enter the cost.
