Proclamation
4notify Canada · Canada Gazette
PROCLAIMED · Canada Revenue Agency (CRA)
Proclamation No.
PRO-CA-003
Date
2026-05-27
Status
In force
Category
Tax

CRA My Business Account, GST/HST filing and e-invoicing notifications for Canadian businesses

The Canada Revenue Agency (CRA) operates My Business Account, the portal through which businesses file GST/HST returns, manage payroll source deductions and receive assessments. 4notify integrates with Canadian accounting software (QuickBooks, Sage, Xero, Wave) and delivers filing acknowledgements, GST/HST remittance reminders and e-invoicing delivery confirmations to the right party.

EmailWebhook
Preamble

Section 1 — Pursuant to the Excise Tax Act and the Income Tax Act, and in support of the CRA My Business Account electronic-services framework, this Proclamation governs the delivery of filing acknowledgements and GST/HST remittance notifications.

Statutory Basis
Excise Tax Act (R.S.C. 1985, c. E-15)

GST/HST registration, collection, remittance and return-filing obligations.

Income Tax Act (R.S.C. 1985, c. 1)

Payroll source deductions, instalments and electronic record-keeping requirements.

CRA My Business Account framework

Electronic filing, mail and notification channels for registered Canadian businesses.

Implementation
01

QuickBooks / Sage / Xero webhook

4notify subscribes to the accounting-software filing queue; validation runs before the return is acknowledged to the filer.

02

Filing acknowledgement + status

An acknowledgement is sent to the filer within 60 seconds; assessment status (accepted / under review / reassessed) follows when the CRA posts it.

03

Routing to the right bookkeeper

The acknowledgement is routed to the responsible accountant or bookkeeper using their RepID / Business Number authorisation.

04

Six-year retention (CRA)

Every return and acknowledgement is retained with a hash signature for six years — aligned with CRA record-keeping requirements.

Delivery Envelope
xml
<cra-filing-ack xmlns="https://4notify.net/cra/v1">
  <document_no>CRA2026000000481923</document_no>
  <business_number>123456789RT0001</business_number>
  <return_type>GST-HST</return_type>
  <period_end>2026-03-31</period_end>
  <status>accepted</status>
  <channel>email,webhook</channel>
  <rep_id>RC-555555</rep_id>
</cra-filing-ack>
Sample Message
EmailSubject: Filing acknowledgement: GST/HST return CRA2026000000481923

Hello, We successfully received and validated your GST/HST return CRA2026000000481923 on 2026-05-27 at 14:32 ET. Status: accepted Routed to: Bookkeeper (RepID RC-555555) Regards, 4notify Operations

Compliance Checklist
  • QuickBooks / Sage / Xero / Wave webhook configured
  • GST/HST and payroll acknowledgements validated at the API edge
  • P50 acknowledgement ≤ 60 seconds measured
  • Six-year CRA-aligned retention attested
The 4notify difference

4notify is the only A2P provider with native QuickBooks/Sage/Xero integration, edge-side GST/HST acknowledgement validation and CRA-aligned six-year audit retention.

Frequently Asked Questions
Does 4notify need a CRA API key?

No. 4notify works from the delivery envelopes produced by the accounting software; the CRA connection and Business Number credentials stay with the bookkeeper.

What is the difference between GST and HST notifications?

GST applies in provinces without a harmonised tax; HST is the combined federal-provincial rate in participating provinces. 4notify handles both through the same envelope and labels the applicable rate per recipient province.

Proclaimed by
4notify Operations Office
2026-05-27 · PRO-CA-003

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