Authentication - Help
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Authentication - Help
Access code
Enter the personalized access code located on the top right corner of your notice of assessment. The personalized access code is an eight-character alphanumeric code.
![](https://www.canada.ca/content/canadasite/en/revenue-agency/services/e-services/represent-a-client/authentication-help/_jcr_content/par/img_0_1/image.img.png/1494466782440.png)
If you have not received a notice of assessment, please contact the e-service Helpdesk. You should make every attempt to locate your notice of assessment before contacting us.
During peak periods of the year, you may experience some delays in reaching the e-service Helpdesk.
Postal code
Enter the postal code or ZIP code of your current mailing address. Enter it without any spaces and/or hyphens. Check your postal code on the Canada Post Postal Code Look Up site.
Report a problem or mistake on this page
- Date modified:
- 2016-03-11