What's new for T1/T3 Internet version 28.21?

The latest DT Max program update is now available for downloading. It features the T1/TP-1 program for the tax years 2013 to 2024 inclusively and fully supports T1/TP-1 EFILE. It also features the T3/TP-646 program for the tax years ending from 2013 to 2024 inclusively. Installing this version will update your version of DT Max to 28.21.

Please note that all program versions are made available on the Internet.

In this version...

DT Max T1

1. Known issues fixed in version 28.21
   1. Qualifying withdrawal from FHSA in 2024 (T4FHSA box 20)
   2. Unused FHSA contributions for a taxpayer aged 72
2. Stock option benefits incurred after June 25, 2024

DT Max T3

1. 2025 tax brackets and rates

DT Max T1

1. Known issues fixed in version 28.21

   1. Qualifying withdrawal from FHSA in 2024 (T4FHSA box 20)

   2. Unused FHSA contributions for a taxpayer aged 72

      We've identified an issue where the software did not properly claim unused First Home Savings Account (FHSA) contributions entered under the keyword FHSA-Undeducted that were eligible to be claimed on the return of a taxpayer who turned 72 years old during the tax year.

      Additionally, the software did not generate Schedule 15, FHSA Contributions, Transfers and Activities, which is required to document these contributions.

2. Stock option benefits incurred after June 25, 2024

   DT Max calculates an amount for line 24901 of the federal T1 income tax returns (and 297 of the TP1 Quebec income tax return if applicable) for stock option benefits incurred after June 25, 2024. This calculation is following instructions of the CRA and RQ as they were provided by the prescribed forms. Should we receive any changes, we will advise you.

DT Max T3

1. 2025 tax brackets and rates

   All federal and provincial tax brackets have been updated in DT Max T3 for 2025. The rates are based on information available as of March 1, 2025.