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Known Issue: T2 Auto-fill My Return (AFR) Error

When you download T2 AFR data, the T2 Auto-fill window responds with an error. The error reads: “The following databases returned an error: COR file. Please download again and clear the check box for the data group causing the error.” 

This issue originates with the Canada Revenue Agency’s (CRA) T2 Auto-fill My Return service.

Anticipated Resolution

The CRA is aware of this issue and working on a fix. We will update this page once the fix is released.

2026-10-20
known issue T2 AFR CRA
Riyam