The Complete Guide to Mandatory T2 Electronic Filing
The rule for tax years starting after 2023, the flat charge for filing on paper, why a nil return is not exempt, and how transmission works. Nil T2 filing is $300.00 plus HST per tax year.
Written and reviewed by Sharad Gondaliya, CPA (Ontario), CPA Ontario Membership 61040184.
Last reviewed: October 27, 2026 · All nil T2 filing guides
On this page
- The Rule for Tax Years Starting After 2023
- Which Corporations It Applies To
- The Paper Filing Penalty
- The Preparer Penalty
- A Nil Return Is Not Exempt
- How an Electronic Return Reaches the Agency
- Form T183CORP and Electronic Signing
- What Happens When a Transmission Is Rejected
- The Confirmation You Receive
- The Narrow Exceptions
- Filing Older Years Electronically
- What the Fee Covers
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 Rule for Tax Years Starting After 2023
For tax years beginning after 2023, electronic filing of the T2 is mandatory for virtually all corporations. It is not a preference and it is not limited to large corporations.
The change removed a threshold that had previously exempted smaller corporations from mandatory electronic filing. The obligation now reaches almost every corporation that files a T2 at all.
The rule is about the method, not the content. A return with nothing in it is transmitted electronically exactly as a return with everything in it.
Which Corporations It Applies To
Virtually all of them. The exceptions are narrow and defined, and a corporation with no activity is not among them.
| Corporation | Electronic filing |
|---|---|
| Trading, any size | Mandatory |
| Dormant, filing nil returns | Mandatory |
| A numbered company holding nothing | Mandatory |
| Filing a first return | Mandatory |
| Filing a final return before dissolution | Mandatory |
Every row above is a corporation this site files for, and every one of them is transmitted electronically.
The Paper Filing Penalty
A true nil return carries no percentage late-filing penalty, because that penalty is a percentage of tax owing and the corporation owes $0.00. The unfiled year still stays open forever, invites a demand to file and an arbitrary assessment, blocks a clearance certificate and dissolution, and costs a non-resident-owned corporation $25.00 per day up to $2,500.00.
That block is about filing late. The charge for filing on paper is a different thing entirely, and it is the reason this guide exists: a paper T2 draws a flat $1,000.00, and a flat amount does not care that the corporation owes $0.00.
| Charge | Calculated as | On a nil return |
|---|---|---|
| Percentage late-filing charge | A percentage of tax owing | $0.00, because the tax owing is $0.00 |
| Paper filing charge | A flat amount per return | $1,000.00 in full |
Read the right-hand column. The two charges behave in opposite ways on the same return.
The Preparer Penalty
A separate charge of $100.00 per return applies to a preparer who files a corporate return on paper where electronic filing was required.
It attaches to the person who prepared and filed the return, not to the corporation. A professional preparer filing on paper is exposed to it on every return.
Returns here are transmitted electronically by a registered EFILE electronic filer, so neither charge arises.
Nil T2 Filing, $300.00 plus HST per tax year
One price for every year and every province. CPA reviewed and transmitted electronically.
A Nil Return Is Not Exempt
Nothing about having no activity removes the electronic filing obligation or the charge for ignoring it. A dormant corporation that posts a paper T2 is exposed to the full $1,000.00 on a return reporting $0.00.
This is the largest single amount a genuinely nil corporation can be charged, and the only one it can incur by being careful in the wrong way. Posting the return is not the safe option.
How an Electronic Return Reaches the Agency
The return is prepared in certified software, validated against the Agency’s rules, and transmitted directly. There is no envelope, no posting date and no question about whether it arrived.
| Step | What happens |
|---|---|
| Preparation | The return and its schedules are built |
| Validation | The software checks it against the Agency’s rules |
| Authorisation | Form T183CORP is signed by a signing officer |
| Transmission | The return is sent by a registered EFILE electronic filer |
| Confirmation | The Agency returns a result on the transmission |
The whole sequence for a nil return is covered in the guide to how to file a nil T2 return.
Form T183CORP and Electronic Signing
Form T183CORP is what authorises the transmission. It carries the figures from the return it belongs to, and it is signed by an authorized signing officer of the corporation before anything is sent.
It is signed here on a single-use access-controlled screen, with the date and the time recorded. It is never backdated, it is kept for six years, and it is not sent to the Agency unless the Agency asks for it.
The full detail is in the guide to Form T183CORP signing and transmission.
What Happens When a Transmission Is Rejected
A rejected transmission is not a filed return. The Agency returns an error identifying what it would not accept, the return is corrected, and it is sent again.
| Common rejection | Cause |
|---|---|
| Year-end does not match the record | A different year-end than the one on file |
| Business number not recognised | A wrong number, or no account for the return type |
| A required schedule missing | A schedule the return’s own answers made mandatory |
| Balances do not carry forward | Opening figures that do not match the prior year’s close |
One corrected transmission is included in the fee where the Agency rejects the first one. The year-end mismatch is the most frequent of the four, and fixing a wrong year-end covers it.
The Confirmation You Receive
An accepted transmission produces a confirmation from the Agency. That is the evidence the year was filed, and it is what a clearance request, a dissolution and a lender all eventually ask for.
It is emailed within 3 business days of transmission. Keep it with the corporate records: it is easier to retain than to retrieve years later.
A return nobody can evidence is, in practice, a return that gets filed twice. The confirmation takes no effort to keep and a great deal of effort to reconstruct years later.
The Narrow Exceptions
A small number of corporations fall outside mandatory electronic filing, defined by what the corporation is rather than by how little it did. An insurer, a non-resident corporation in certain circumstances and a corporation reporting in a functional currency are the kinds of case involved.
Being dormant is not an exception, having no bank account is not an exception, and finding the software inconvenient is not an exception.
A holding corporation with investment income, a rental corporation and a corporation that paid or received a dividend are not nil. Those are handled by Gondaliya CPA Professional Corporation at gondaliyacpa.ca at $350.00 plus HST per year.
Filing Older Years Electronically
Earlier tax years are transmitted electronically too. Catching up on six unfiled years does not mean posting six paper returns, and the Agency accepts prior-year returns through the same channel.
Each year is its own return on its own form for its own tax year, prepared oldest first, at $300.00 plus HST per tax year.
See the guide to catching up on unfiled corporate tax returns.
What the Fee Covers
The fee is $300.00 plus HST per tax year, covering one nil T2 return for one corporation for one tax year:
| Included | Detail |
|---|---|
| The T2 return | Including the T2 Short where the corporation qualifies |
| GIFI Schedules 100, 125 and 141 | Where they are required |
| Schedule 24 | On a first return |
| Schedule 50 | For every shareholder at 10% or more |
| Schedule 8 and loss continuity | Recorded |
| Form T183CORP package | With single-use secure e-signing |
| CPA review | Before transmission |
| Electronic transmission | By a registered EFILE electronic filer |
| One corrected transmission | If the Agency rejects the first one |
| CRA confirmation | Emailed within 3 business days |
See the full nil T2 filing cost.
Frequently Asked Questions
Is Electronic Filing of a T2 Compulsory?
For tax years beginning after 2023 it is mandatory for virtually all corporations. The earlier threshold that exempted smaller corporations was removed.
What Is the Charge for Filing a T2 on Paper?
A flat $1,000.00, plus a separate $100.00 per-return charge on the preparer. Neither is a percentage of anything.
Is a Nil Return Exempt From the Paper Filing Charge?
No. It is a flat amount, so a dormant corporation that posts a paper return reporting $0.00 is exposed to the full $1,000.00.
What if the Transmission Is Rejected?
A rejected transmission is not a filed return. The Agency identifies the error, the return is corrected and sent again, and one corrected transmission is included in the fee.
Can Older Unfiled Years Be Filed Electronically?
Yes. Prior-year returns go through the same channel, prepared oldest first, each on its own form for its own tax year.
What Proof Do I Get That the Year Was Filed?
A confirmation from the Canada Revenue Agency, emailed within 3 business days of transmission. It is what a clearance request and a dissolution eventually ask for.
Questions Answered in Full
- Can I File a Nil T2 Myself Without an Accountant?
- How Do I File a Nil T2 Return in Canada?
- How Do I Fix a Nil T2 Return I Filed With the Wrong Year-End?
- Do I Need Financial Statements for a Nil T2 Return?
- Do I Need a Business Number to File a Nil T2?
- What Happens if I Don’t File a Nil T2?
The Other Nil T2 Filing Guides
- The Complete Guide to Schedule 50 and Shareholder Reporting
- The Complete Guide to Non-Resident-Owned Corporation Nil Filing
- The Complete Guide to the Nil T2 Return
- The Complete Guide to Dormant and Inactive Corporations
- The Complete Guide to Catching Up on Unfiled Corporate Tax Returns
- The Complete Guide to the Final T2 and Dissolution
- The Complete Guide to T2 Short Eligibility
- The Complete Guide to Provincial and Federal Annual Returns
- The Complete Guide to Form T183CORP Signing and Transmission
- How to File a Nil T2 Return
- The Complete Guide to GIFI Schedules 100, 125 and 141
- The Complete Guide to Schedule 8 and Loss Continuity
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.