The Complete Guide to Choosing and Changing a Fiscal Year-End
A corporation picks its own year-end, the first return fixes it, and changing it needs written approval. How to choose it and what a change costs. 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 29, 2026 · All nil T2 filing guides
On this page
- Nothing Assigns You a Year-End
- The First Tax Year Cannot Exceed 53 Weeks
- Everything Else Is Measured From It
- A Short First Year Is a Return for Almost Nothing
- A Short Year Does Not Get an Early Deadline
- Changing It Needs Written Approval
- A Wrong Year-End Gets the Transmission Rejected
- A Change Cannot Reach More Than 53 Weeks Out
- Why the Year-End Matters Most on a Catch-Up
- None of This Changes for a Nil Year
- How to Decide, in Practice
- 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.
Nothing Assigns You a Year-End
A corporation picks its own fiscal year-end. There is no default, nothing is allocated at incorporation, and December 31 is a convention rather than a rule. The articles of incorporation do not set it either.
What sets it is the first T2 return filed. From then on the date is on the record, it recurs annually, and every other date in the corporation’s tax life is measured from it. That makes this the one decision that is free to make now and awkward to revisit.
The first T2 year-end options generator lists every date available from a given incorporation date, with the filing deadline each one produces.
The First Tax Year Cannot Exceed 53 Weeks
This is the one hard limit on the choice. A first tax year runs from the date of incorporation to the chosen year-end and may not exceed 53 weeks, which is 371 days counting the day of incorporation.
A year-end beyond that point is not available at all. Where someone wants one anyway, the consequence is not a longer first year: it is a first year ending earlier, then a full year, and two returns due within months of each other.
Counting it by eye from two dates in different years is where the mistakes come from, because 371 days does not line up with any month boundary. The 53-week first tax year checker tests one proposed date and the fiscal period length calculator measures a period you already have.
Everything Else Is Measured From It
Picking the year-end picks the rest of the calendar, which is the real reason it deserves a decision rather than a default. Two of these dates follow from it directly and one deliberately does not.
| Obligation | Measured from the year-end | When |
|---|---|---|
| The T2 return | Yes | Six months after it |
| A balance of tax | Yes | Two months after it, or three for a qualifying CCPC |
| The T4 information return | No | The end of February following the calendar year |
| The registry annual return | No | Measured from the incorporation anniversary |
A month-end year-end makes the six-month rule land on a month-end too, which is the practical argument for choosing one. A year-end on the 9th puts the filing deadline on an awkward mid-month date every year after. The corporate deadline calendar generator shows the whole calendar one year-end produces.
A Short First Year Is a Return for Almost Nothing
Choose the earliest month-end after incorporating and the first tax year might be three weeks long. It is still a tax year, it still gets a return, and that return is $300.00 plus HST per tax year like any other. There is no part-year rate.
So an early first year-end means paying for a return covering almost nothing, and then a second return for the first full year. A year-end closer to twelve months out produces one return instead of two over the same stretch of time.
Short years also arise for reasons nobody chooses: an approved change of year-end, an amalgamation, and a final period ending at dissolution. The short tax year deadline calculator covers the deadline on any of them, and the guide to first-year T2 filing covers the first return itself.
Nil T2 Filing, $300.00 plus HST per tax year
One price for every year and every province. CPA reviewed and transmitted electronically.
A Short Year Does Not Get an Early Deadline
Worth stating on its own because the intuition runs the other way. The six-month rule is measured from the day the period ends, whatever the period’s length. A three-month stub period has six months after it to file, which is twice the period itself.
What a short period does bring forward is the next year-end, and with it the next return. That is how two filing deadlines end up weeks apart, and how the earlier one gets missed: two dates close together read as one obligation. The two T2 returns in one year checker shows both dates and the gap between them.
Changing It Needs Written Approval
A fiscal year-end is fixed by the first return filed, and changing it needs the written approval of the Canada Revenue Agency. The request is made before the change rather than demonstrated by filing.
That sequence is the part most often got wrong, and the next section is about what happens when it is.
An approved change closes a period on the new date. That period is a tax year in its own right with its own return and its own deadline, so the cost of a change is an extra return that would not otherwise exist. The year-end change impact calculator shows the period a given change creates, its length and both filing dates.
A Wrong Year-End Gets the Transmission Rejected
Filing a return carrying a year-end that does not match the record is not read as a change of year-end. It is rejected against the date on record.
The consequence is worse than it first sounds, because a rejection is not a late filing. A refused transmission is not a filed return at all, so the year stays outstanding and the person who sent it believes it is done.
On a catch-up this compounds. Several years sent in one sitting against the wrong year-end are several years still outstanding, and the error is only found when a demand to file arrives or a clearance request is refused.
Which is why the year-end on record is confirmed before anything is transmitted rather than assumed from the incorporation papers. The corporate fiscal year end calculator works from the date on record.
A Change Cannot Reach More Than 53 Weeks Out
The same 53-week limit that bounds a first tax year bounds the period a change creates. Where the gap between the current year-end and the proposed one is longer than 371 days, that gap is not a single tax year and cannot be reported as one.
Reaching a year-end that far out needs an intervening year-end first, which means two returns rather than one. It is the same arithmetic as the first-year limit, applied at a different moment.
| Length of the period a change creates | What it is |
|---|---|
| Under twelve months | A short tax year, with its own return |
| Twelve months | A full tax year |
| Up to 371 days | Still one tax year |
| More than 371 days | Not one tax year; an intervening year-end is needed |
Why the Year-End Matters Most on a Catch-Up
A corporation with one year to file has one date to get right. A corporation with six has the same date six times, and every one of those returns is rejected if the date is wrong.
The years are also prepared oldest first, because each one opens from the closing balances of the one before it. A wrong year-end does not stop at six rejections; it produces a sequence that cannot be reconciled.
The guide to catching up on unfiled corporate tax returns covers the sequence, and the catch-up filing schedule generator produces the dated schedule once the year-end is known.
None of This Changes for a Nil Year
A corporation that has never traded still has a year-end, still has it fixed by its first return, and still needs written approval to change it. Being nil affects the figures on the return and nothing about the calendar.
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.
So the year-end decision is made at incorporation whether or not anything is happening yet, and a corporation registered and left dormant has already made it by the time its first return goes in.
How to Decide, in Practice
There is no answer that fits every corporation, and anyone offering one does not know the facts. What can be said is which considerations actually bear on it.
| Consideration | What it argues for |
|---|---|
| Keeping the calendar simple | A month-end, so the six-month rule lands on a month-end too |
| Avoiding a return for a few weeks of nothing | A first year-end closer to twelve months out |
| Matching the year to a natural business cycle | A year-end after the busy season rather than inside it |
| Never needing to change it | Thinking about the next few years now, since a change costs an extra return and needs written approval |
Where the corporation is dormant and may be wound up rather than traded, the last row matters most: a year-end chosen now is the one the final return will be measured from. The guide to the final T2 and dissolution covers that end of it.
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
Who decides my corporation’s fiscal year-end?
The corporation does. There is no default and nothing is assigned at incorporation. The first T2 return filed is what fixes the date on the record.
How long can my first tax year be?
Up to 53 weeks, which is 371 days counting the day of incorporation. A year-end beyond that is not available, so the first year has to end earlier.
Can I change my fiscal year-end later?
With the written approval of the Canada Revenue Agency. The request is made before the change, and filing a return carrying a different date does not change the date on record.
What happens if I file against the wrong year-end?
The transmission is rejected against the year-end on record. A refused transmission is not a filed return, so the year stays outstanding.
Does changing a year-end cost an extra return?
Usually. The change closes a period on the new date, that period is a tax year in its own right, and it gets its own return at $300.00 plus HST per tax year.
Does a short tax year have an earlier deadline?
No. The six-month rule runs from the day the period ends, so a three-month period gets the same six months as a full year.
Questions Answered in Full
- When Should I File My First T2 After Incorporating?
- When Should I File a Nil T2 for a Short First Tax Year?
- How Do I Fix a Nil T2 Return I Filed With the Wrong Year-End?
- Do I Need to File a Nil T2 if I Never Started Operating?
- How Do I File a Nil T2 Return in Canada?
- Do I Need to File a T2 if My Corporation Had No Activity?
The Other Nil T2 Filing Guides
- The Complete Guide to Quebec CO-17 and Alberta AT1
- 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
- The Complete Guide to First-Year T2 Filing
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.