Why does the disability amount transfer show on the federal summary of both parents especially when one has zero income?

[TurboTaxSusan]

Do you mean the disability amount is showing up on the same line? Because the disability amount will show up on both returns if there is a transfer. On the return for the person with the disability, they will claim the disability amount on line 31600 of their T1. On the return for the other spouse, the amount transferred will be included on line 32600 of the T1, and comes from line 35700 of Schedule 2.