How to enter the Ontario Disability Tax Credit on Form ON428, line 58440? I have a valid T2201 and entered the Federal amount.

[TurboTax_Susan]

When you claim the Federal Disability tax credit, the Ontario one will be claimed as well.

[gkh77]

When clicking on the "View detailed summary" at the top of the main page (before proceeding with the "Review and File" stage, I don't see any reference to the Provincial Disability Tax Credit.  Applying the provincial tax credit should have reduced my provincial tax payable to zero, but TurboTax summary still shows with a balance owing.  How will I know that the tax credit is properly applied?

[TurboTax_Susan]

If you are using TurboTax Do It Yourself (Online), you can get a PDF archive of your return which will have your full return. When you get to the part where you file your return, you'll get the option to download a PDF preview. This will include your provincial forms.