What's new for T1 Internet version 20.21?

The latest DT Max program update is now available for downloading. It features the T1/TP-1 program for the tax years 2005 to 2016 inclusively and fully supports T1/TP-1 EFILE. Installing this version will update your version of DT Max to 20.21.

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

In this version...

Known issue fixed in version 20.21: Quebec error code HB0B34

When one of the spouses claims the Quebec amount for a person living alone, the field B33 shown in the Quebec return record does not correspond to the amount indicated on line 33 of Schedule B, which generates the error code HB0B34. This problem is now fixed in version 20.21.