Dissolution Timeline Calculator
A dissolution date gives the final T2 deadline and the order of the steps around it, including the ones outside the fee.
Written and reviewed by Sharad Gondaliya, CPA (Ontario), CPA Ontario Membership 61040184.
Last reviewed: November 2, 2026
Enter the planned dissolution date and answer the question.
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.
The Order Is the Useful Part
A wind-up has four steps and only one of them is a date on a form. Getting them in the wrong order is what stalls a dissolution, because two of the four depend on the ones before them.
Unfiled years block a clearance certificate, and they block the dissolution itself. So the outstanding years go first, the final T2 follows, the clearance request comes after the returns are assessed, and the registry filing is last.
Which Steps Are Ours
| Step | Inside $300.00 plus HST per tax year |
|---|---|
| Each outstanding nil year | Yes, at the fee per tax year |
| The final T2, where the last period is nil | Yes, at the fee |
| The clearance certificate request | No |
| The registry dissolution filing | No |
| Closing a GST/HST or payroll account | No |
The dissolution readiness checker tests whether the corporation is ready to start, and the clearance certificate requirement checker covers the third step on its own.
Filing the Final Return Does Not Dissolve It
The final T2 closes the tax record. It does not close the corporation, which stays in existence on the register until the registry dissolution is filed and accepted.
Those are two trails and they end separately. A corporation whose returns are all filed and whose registry record is untouched is still live, and still accruing a filing obligation each year.
Frequently Asked Questions
When is the final T2 due?
Within six months of the date of dissolution. The final tax year ends on that date, and the six-month rule runs from it exactly as it does from an ordinary year-end.
Do unfiled years have to be cleared first?
Yes. They block a clearance certificate and they block the dissolution itself, so they are filed before the final return is assessed. Each one is its own return at $300.00 plus HST per tax year.
Does filing the final return dissolve the corporation?
No. The dissolution is a separate registry filing, made with the registry the corporation was incorporated under, and it is not covered by the fee.
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.
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