Why is Turbo Tax not applying the DTC to our return, when we answered "yes" to my husband having a disability? Why is TT not asking for T2201 verification?

Turbo Tax not applying disability tax credit amount.

Credits and deductions

When you complete the section in TurboTax about the Disability Tax Credit, you will be asked if you have a valid T2201 on file with CRA.

Here is how to claim the disability tax credit for yourself: https://turbotax.community.intuit.ca/replies/2648044

If you are using Forms, click the Forms icon and search for DTC.