CRA Confirmation Due Date Calculator
Your CRA confirmation is emailed within 3 business days. Enter the transmission date to see which three days those are.
Written and reviewed by Sharad Gondaliya, CPA (Ontario), CPA Ontario Membership 61040184.
Last reviewed: November 4, 2026
Enter the transmission date 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.
What the Confirmation Actually Is
The confirmation is the Canada Revenue Agency’s acknowledgement that the transmitted return was received. It is what turns a year from unfiled into filed, and it is emailed to you rather than left somewhere to be found.
Until it arrives the year is still open. That is the reason the date is worth knowing rather than waiting on: three business days from transmission is the window, and a long weekend moves it.
What Counts as a Business Day
| Day | Counts | Why |
|---|---|---|
| Monday to Friday | Yes | An ordinary business day |
| Saturday and Sunday | No | Not business days |
| An Ontario statutory holiday | No | Excluded even when it falls on a weekday |
| The transmission day itself | No | The count starts the day after transmission |
Ontario’s nine Employment Standards Act public holidays are the ones excluded. The business days between dates calculator counts them between any two dates you choose.
If the Confirmation Does Not Arrive
A transmission that is refused produces no confirmation, because the return was never received. That is a rejection rather than a delay, and it leaves the tax year exactly as open as it was before.
Where that happens we read the rejection message, correct the return and transmit it again. One corrected transmission is included in the fee.
Frequently Asked Questions
How long does the CRA confirmation take?
It is emailed within 3 business days of transmission. The calculator above names which three days those are for your date.
Do weekends and holidays count?
No. Business days are Monday to Friday and exclude Ontario statutory holidays, so a long weekend pushes the date out.
What if no confirmation arrives at all?
That usually means the transmission was refused rather than delayed. A refused return was never received, so the year stays unfiled until a transmission is accepted.
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