E-Filing Rejection Reason Checker
A refused transmission is usually one of four identifier mismatches. Four answers name the cause and what clears it.
Written and reviewed by Sharad Gondaliya, CPA (Ontario), CPA Ontario Membership 61040184.
Last reviewed: November 3, 2026
Answer the four questions above.
Gondaliya CPA Professional Corporation is a registered EFILE electronic filer. Returns are prepared and transmitted in Canada. Credentials are never shared and never used offshore.
A Rejection Is Not an Assessment
A refused transmission means the return was never received, so the tax year stays exactly as open as it was before. Nothing is assessed, nothing is charged for the refusal itself, and no record of it reaches the corporation’s account.
That is the reason a rejection is worth clearing rather than leaving. It reads like a setback and it is really an unfiled year with a note attached saying which field to fix. A refused transmission also produces no CRA confirmation at all, and the CRA confirmation due date calculator dates the one an accepted transmission does produce.
The Four Identifier Mismatches
| Cause | Where the right value comes from | What clears it |
|---|---|---|
| The legal name does not match the register | The register the corporation was incorporated under | Transmit the exact legal name, corporation number and suffix included |
| The fiscal year-end does not match the Agency record | The incorporation record the Canada Revenue Agency holds | Settle the year-end with the Agency, then transmit |
| The Business Number is not the corporation’s own | The corporation’s own Canada Revenue Agency record | Confirm the Business Number against the corporation name |
| The year has already been filed and assessed | The assessment already on the account | An assessed year is adjusted rather than refiled |
The Business Number versus corporation number checker separates the two identifiers these mismatches confuse, and the mandatory T2 e-filing checker covers which tax years have to be transmitted electronically at all.
One Corrected Transmission Is Inside the Fee
Where a first transmission is refused, we read the rejection, correct the return and transmit it again, and that second transmission is included in $300.00 plus HST per tax year rather than charged separately.
What is not inside the fee is an adjustment to a year that has already been assessed. That is a different filing on a year that is already closed, and we say so before you pay rather than after.
Frequently Asked Questions
Why was my T2 rejected?
Most often one of four identifier mismatches: the legal name does not match the register, the fiscal year-end does not match the record the Canada Revenue Agency holds, the Business Number is not the corporation’s own, or the year has already been filed. The checker names which of the four applies to you.
Does a rejected return count as filed?
No. A refused transmission was never received, so the tax year stays open and unfiled until a transmission is accepted. Nothing is assessed and nothing is charged for the refusal itself.
Do I pay again to transmit a corrected return?
No. One corrected transmission is included in $300.00 plus HST per tax year. An adjustment to a year that has already been assessed is a different filing and is not covered.
Nil T2 Filing, $300.00 plus HST per tax year
Type your corporation name, pick your unfiled years, pay, and sign Form T183CORP on a secure screen. Your CRA confirmation is emailed within 3 business days.
Start Nil T2 Filing NOW