CRA SERS API Filing

File your GMTR online. $199.99, transmitted directly to the CRA

Pillar2 Pathway files your Global Minimum Tax Return (GMTR) directly with the Canada Revenue Agency through the Special Elections and Returns System (SERS) API. Complete the guided form below, authorize payment at submit, and receive your CRA confirmation receipt the same day. You are only charged after CRA acceptance.

Filing a notification instead? Use the GIRN filing form, or read the filing FAQ.

Global Minimum Tax Return

Canada Revenue Agency — Special Elections and Returns System

GMTR Filing

Return Type

GIRNGloBE Information Return Notification GMTRGlobal Minimum Tax Return GIR StatusGIR Status Query

File a Global Minimum Tax Return with constituent entity details and tax amounts.

Complete the required fields for your GMTR filing. Optional details are available below the form.

1. Filing Entity

Tax Account Number *

15-character GMT number (#########PT####)

Legal Name *

Authentication Method *

Digital Access Code

Enter the Digital Access Code from your CRA letter

2. Fiscal Period

Fiscal Year Start *

Fiscal Year End *

3. Constituent Entities

At least one constituent entity is required.

Constituent 1

Constituent Global Minimum Tax Account Number

15 characters (#########PT####)

Constituent entity name

4. MNE Group

Multi-National Enterprise Group Name *

Ultimate Parent Entity Name *

5. Filing Entity Contact

Contact Name *

Email *

Telephone *

10-digit number with no spaces or dashes (e.g. 6135550000). The CRA may use this contact to follow up on the GIRN filing.

6. Certification

Signing Authority Name *

Full legal name of the individual who certifies the accuracy of this filing. This person must be authorized to act on behalf of the filing entity. Under Article 8.1.5 of the GloBE Rules, the Filing Constituent Entity is responsible for the accuracy of the GIR.

Certification Date *

Date on which the signing authority reviewed and authorized this filing. Must not be a future date.

GMTR: $199.99 CAD, review your filing, accept terms, then authorize payment; charged only after CRA confirmation.

Additional optional fields

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Click to expand all optional GMTR fields. Only fields you complete are included in your filing.

How our $199.99 GMTR filing service works

Complete the guided questionnaire above. It walks you through every field the CRA requires for a Global Minimum Tax Return under the Global Minimum Tax Submission Guide.
Authorize payment when you submit. GMTR is $199.99, see pricing. We place a temporary hold on your card at submit; you are only charged after the CRA accepts your filing and returns a confirmation number.
We transmit your GMTR through the CRA's SERS API. Our service is already authenticated with the CRA — no certification or testing stage on your side. The payload is generated in the exact JSON structure the Special Elections and Returns System expects and sent in real time.
Receive your CRA confirmation receipt. Most filings are acknowledged the same day, with the confirmation number returned directly to your browser and emailed to your contact address.

What happens after you submit

You will receive an on-screen CRA acknowledgement and a confirmation number you can quote in correspondence with the CRA. We retain a copy of the payload on your behalf for your records. If the CRA does not accept your filing, the card authorization is released and you are not charged; you can correct your information and resubmit with the same authorization when possible. If the CRA rejects the submission for a technical reason on our end, we will correct and re-transmit at no additional charge. Questions? Contact support@pillar2.info.