You normally find your Notice of Assessment (NOA) in one of three places, depending on how you interact with the tax authority and where you live.

1. If you are in Canada (CRA)

Most people asking “where do I find my notice of assessment” are dealing with the Canada Revenue Agency (CRA). Your NOA is available:

  • Online in CRA My Account :
    • Sign in to your CRA My Account.
    • Go to Tax returns or Mail / Correspondence.
    • Look for “Notice of Assessment” or “Notice of Reassessment” and open or download the PDF.
  • By mail :
    • If you did not choose online mail, CRA sends a paper NOA to the mailing address from your tax return after it’s assessed.
  • Through your tax software :
    • Many NETFILE-certified programs let you pull the NOA directly (often under “View assessment” or similar) once CRA has processed your return.

If you can’t find it and you’re sure your return was assessed, CRA suggests contacting them by phone for help.

2. If you are in Québec (provincial NOA)

For Revenu Québec:

  • Your notice is sent by mail unless you opted for online delivery.
  • You can view it anytime in your “My Account for individuals” on the Revenu QuĂ©bec site, which is usually the fastest way if you lost the paper copy.

3. Typical timing and issues

  • For recent returns, it can take about 2 weeks after an online filing or 4–6 weeks after mailing a paper return before the NOA shows up or arrives.
  • If the portal shows an error or a broken PDF, some users report that viewing the notice via the title link instead of the PDF icon , or trying a different browser, can sometimes work; otherwise, you may need to call support.

TL;DR:
Check your online tax account first (CRA My Account or your local tax agency’s portal), then your tax software account if you filed electronically, and finally your physical mail. If none of those work and enough time has passed since filing, contact the tax authority directly.

Information gathered from public forums or data available on the internet and portrayed here.