CRA indicates that being the beneficiary of a QDT trust would not preclude an individual from making a preferred beneficiary election with a “regular” trust

A resident individual, eligible for the disability tax credit, and the beneficiary of a qualified disability trust (“QDT”) as defined in s. 122(3), also is a beneficiary of a “regular” trust that is not a QDT.

After noting that the individual could qualify as a “preferred beneficiary” if eligible to claim the disability tax credit, among other requirements, CRA indicated that individual being a beneficiary of the QDT would not preclude the regular trust and the individual from making a preferred beneficiary election (assuming the usual conditions were satisfied.)

Neal Armstrong. Summary of 17 June 2025 STEP Roundtable, Q.4 under s. 104(14).