Your dependant's birthdate will not be "pro-rated" when claiming a Disability Tax Credit (DTC) transfer from a dependant.
The software will correctly calculate any credits available based on the information entered.
- The amount of this federal tax credit is $8,113 for 2017, with a supplement of $4,732 available for taxpayers under 18 years of age, at the end of the year.
- Dependants over 18 years of age qualify for the basic amount of $8,113 and must first use any of that credit to reduce their own tax payable to Zero before transferring.
https://turbotax.intuit.ca/tips/a-guide-to-the-disability-tax-credit-5294
https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...