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Important Update: New CRA Requirements for Online WAC/DAC Requests

November 20, 2025

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The Canada Revenue Agency (CRA) has strengthened the security requirements for online Web Access Code (WAC)/Digital Access Code (DAC) requests. To enhance verification and protect taxpayer information, the CRA now requires additional mandatory fields when submitting a WAC/DAC request.

Beginning November 24, 2025, the CRA automatically rejects any online WAC/DAC request submitted using TaxTron T2 versions earlier than 2025.2

However, for users working with older versions:

WAC/DAC request
WAC/DAC request

What Information Is Now Required?

When requesting a WAC/DAC online, corporations must provide:

  • The issue date from their most recent Notice of Assessment (NOA) or Reassessment
  • Any one of the following amounts from that same NOA:
    • Part I Tax
    • Total Federal Tax

These new fields ensure that only authorized users can access or submit corporate tax information.