What does 'CRA Result Code: 21' mean when trying to Netfile?

Which tax year are you trying to file?  Please make sure its 21 and not 31.

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Tax Year 2021

@asknbadham 

Your NETFILE Access code is made up of 8 numbers and letters. Please double check that you have entered the full code and that it matches what’s on your Notice of Assessment for the last tax year. 

Since the code is not mandatory, you can also try filing your return without the code.

You can get back to the page with your NETFILE Access code by clicking on “My Info”, then “[Your Name]’s Personal Information”. Then scroll to the middle of the page to find the code entry box.

what does code 21 mean i have the right assessment number from last years return

The CRA code 21 means that your file was rejected as there is misinformation on your return. You will need to verify that your full name, address, and phone number are the same as what the CRA has on file. 

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