Disability deduction

How does DT Max calculate the disability deduction and transfer it to a parent or spouse?

The keyword Infirmity in a client's data triggers the disability deduction for that client. If the dependant is infirm and the income is insufficient to take full advantage of the disability deduction, DT Max will transfer the unused amount to the supporting person. If the dependant is 18 years of age or older, and infirm but not disabled, enter Infirmity in the dependant's file and indicate Do not use disability deduction with the keyword Disability. This will entitle the supporting person to a non refundable credit for Amounts for infirm dependants age 18 or older on line 306 of the federal return and will not trigger a disability deduction.