Note: this feature is only available for 2016, 2017 and 2018 T1 returns.
A “DO NOT FILE “ or “ DRAFT” watermark appears when a printed copy of the T1 is printed after electronically filing. This watermark helps prevents the filing of a paper return after it has already been accepted by the Canada Revenue Agency (CRA).
The watermark may also display when the CRA requests a copy of the paper return after filing.
To remove the watermark, navigate to the T1 EFILE form. Scroll to the bottom of the form and deselect the "Uncheck the box if you are required to re-submit the T1 condensed form for the Efiled accepted return":
The watermark is removed.