How do I claim this deduction when amending a return?

[PacificaBren]

I just filed my mom's taxes using TurboTax online, and the return was accepted by the feds.

The problem is I just realized there's a major expense we should have claimed:

Specifically, we put a new roof on our home. A bit of Googling indicates a new roof is considered an improvement, as opposed to a repair.

And because it's an improvement, that means it qualifies for a tax deduction.

Unfortunately, when we log in and click "amend (change) return," there's no clear way to claim this deduction.

I click on the thing that brings us to a screen that says, "Your tax breaks," then we click "Your home," and it shows the following categories:

Mortgage Interest and Refinancing (Form 1098)

Property (Real Estate) Taxes

Home Energy Credits

Mortgage Interest Credit Certificate

2008 Homebuyer Credit Repayment

D.C. First-Time Homebuyer Credit

But there's no category for declaring a home improvement expense.

Note mom took the standard deduction, as opposed to doing itemized deductions.

How should we proceed?

Thank you!

[Mike9241 · Accepted solution]

if the property isn't rental this is no deduction or credit for a new roof. it does add to basis. in this case, there is nothing to amend. 

[PacificaBren]

Ah, thank you. I must have misunderstood something I'd seen during my Google searches on this topic.