EFILE registration: a RepID, a free online form, renewal every year

What are the steps and dates for the 2026 EFILE renewal season?

Registration is a one time online application with no processing fee, and every successful applicant renews each year canada.ca. As of October 2026 the cycle runs like this.

The October 5 to 19, 2026 blackout is for system maintenance before the yearly conversion canada.ca. The renewal invitation timing and the new password on each renewal are on the CRA's renewal page, which warns that an old password in your software causes transmission failures canada.ca. The CRA suggests applying or renewing before December 31 so screening finishes before the filing season canada.ca.

The current transmission window accepts initial T1 returns for 2018 to 2025 and ReFILE amendments for 2022 to 2025 canada.ca. The CRA hasn't published the window for 2026 returns yet. Since February 2026, EFILE accounts are linked to specific certified software, and a return sent through other software is rejected canada.ca.

Worked example: you renew on Tuesday, October 20, 2026, the first day the option is back. Thirty business days is six working weeks, so under the normal standard screening finishes by about December 1, 2026, a little later if a statutory holiday falls in between. That still clears the CRA's December 31 target. Renew in late December and the same 30 business days runs into February, close to the February 23 opening a new window would have.

Who has to be on the registration, and who should not register at all?

Under ITA 150.1(2.2), you're a tax preparer for a calendar year once you accept payment to prepare more than five returns of corporations, more than five of individuals, or more than five of estates and trusts. An employee preparing returns as part of their job isn't one. A tax preparer must file electronically, with five returns per group allowed on paper under 150.1(2.3) laws-lois.justice.gc.ca. The penalty side is on the paper filing penalty page.

Every applicant goes on the form: sole proprietors, partners, directors, officers, controlling shareholders, branch managers, franchise holders, anyone with management and control over them, and anyone preparing T1 returns for others, such as a subcontractor. Each must be 18 or older, a Canadian resident with a valid SIN, and discharged if they were ever bankrupt canada.ca. Staff who prepare returns only as employees stay off the form. You can list up to 15 applicants, each with their own RepID canada.ca. Getting a RepID is covered on the Represent a Client page.

Three groups shouldn't use this form. A corporation filing its own T2 uses Corporation Internet Filing instead. An applicant who plans to file few or no returns isn't treated as a tax preparer and is denied. A Community Volunteer Income Tax Program volunteer registers with the program first, then applies for an EFILE number only to transmit returns canada.ca.

What does suitability screening check, and what if the CRA refuses you?

Every applicant and controlling person is screened at registration and at each renewal, and must keep meeting the criteria during the year canada.ca. The main ones:

The CRA can still accept you if a failure is isolated, minor or very old. A history of tax fraud or tax evasion means denial canada.ca. Screening normally takes 30 business days, longer when the CRA finds unfiled returns or unpaid tax, so clean up your own filings before you apply.

A refusal comes by letter with the reasons. You can ask for an administrative review by writing to the Chief of Appeals at an Appeals Intake Centre within 90 days of the letter's mailing date, with the letter enclosed canada.ca. While refused, you're outside the paper filing penalty for T1 returns: 150.1(2.4)(a) switches off the preparer rule for a return type you applied to EFILE for and were refused because you didn't meet the criteria laws-lois.justice.gc.ca.

Which changes need only an update, and which need a new application?

Contact details are updated online: sign in with your EFILE number and password and select Maintain account. Structural changes can't be updated. They need a new application, a new EFILE number and password, and a call to the EFILE Helpdesk to cancel the old number canada.ca.

The same list appears on the renewal page, so check it before you renew: a sole practitioner who incorporated during the year can't carry the old number over by renewing canada.ca. Not reporting changes to your registration details is also a listed ground for revocation canada.ca.

What can get your EFILE privileges suspended or revoked?

The CRA monitors three things: T183 compliance, transmission quality and complaints. It periodically asks for copies of T183 forms and written explanations of errors, and not answering on time can lead to suspension canada.ca. When someone other than the taxpayer signs a T183, you must be able to produce the supporting document, such as a power of attorney or executor documents. The form rules are on the T183 page.

The CRA lists 19 grounds for revocation, including not dealing directly with clients or verifying their identity, using EFILE for anything other than filing returns, failing to protect client information or your password, preparing or filing from outside Canada, unacceptable error rates, advertising violations, late or missing T183 forms, stockpiling returns without telling clients, and transmitting for unregistered preparers. A warning letter usually comes first, but the CRA can suspend without one, and you have 90 days from the notice date to request a review canada.ca. The CRA's own overview says EFILE may be used only to file returns, and any other use is prohibited canada.ca.

One feature is gone. Since July 15, 2025, EFILE no longer handles authorization requests for individual clients. Those go through Represent a Client, while EFILE requests for business clients are unaffected canada.ca. Rejected transmissions are covered on the EFILE error codes page.