T2 deadline calculator
Updated
Quick answer: Your corporation has two different deadlines and most owners mix them up. Enter your fiscal year-end to see both.
Filing and paying are two different deadlines, and only one of them is six months. Ask us to check yours.
With both dates in hand, the next question is usually who prepares the return. Ours is a fixed fee, quoted before work starts.
Opens your own email app with the numbers filled in — add your question and a CPA replies, usually the same business day.
General estimates, not tax advice. Rules change and your result depends on details a calculator cannot see; we confirm the numbers once we review your enquiry.
Nothing you type here leaves your browser. This calculator runs entirely on your device — no figures are sent to us or to anyone else.
Given my fiscal year-end, when is my corporate tax payment due and when is the return due?
Any incorporated business. Payment is due before filing; instalments are a separate obligation. What this T2 calculator does give you is both dates from a single input, your fiscal year-end.
On this page
A worked example
These are the numbers already in the calculator above, so you can follow the arithmetic against the result it is showing.
| Step | Figure |
|---|---|
| Fiscal year-end | 31 December 2026 |
| Balance owing | 31 March 2027 — three months after year-end, for a CCPC claiming the small business deduction |
| T2 return filing | 30 June 2027 — six months after year-end |
| The trap | The return is due three months AFTER the money is. Filing on time does not mean paying on time. |
What it assumes, and where it stops
Every estimate rests on assumptions. These are the ones that would change your number most.
| Assumption | What it means for your number |
|---|---|
| Three months for a CCPC claiming the small business deduction | Other corporations get two months to pay, not three. |
| Weekend and holiday shifts | A date that lands on a weekend or public holiday moves to the next business day. |
| A full fiscal year | A short year — the first year, or a year-end change — has its own dates measured from the actual year-end. |
General information, not advice. Have a CPA confirm it for your situation
Why there are two dates
A corporation files its T2 return six months after year-end, but tax owing is due earlier: three months for a Canadian-controlled private corporation claiming the small business deduction, two months for others. Most late-payment interest comes from waiting for the filing deadline.
Interest runs from the day after the balance-due date at the CRA’s prescribed rate, compounded daily, and it is not deductible. The late-filing penalty is separate again — 5% of the balance plus 1% per month, up to 12 months, doubling for repeat late filing. Full breakdown of the penalties
Choosing a year-end changes these dates
A new corporation can pick almost any fiscal year-end within 53 weeks of incorporating, and that single choice sets every date above for the life of the company. A non-December year-end also moves your work outside your accountant’s busiest season. How to choose your year-end Change the year-end and both T2 dates move with it, which is why the choice is worth making deliberately.
Weekend and holiday dates move to the next business day. Prefer not to track it? we handle the T2 and the calendar for a fixed annual fee. Facing the year-end? A free five-email course paces the close.
Free to use on your own site — the snippet keeps a credit link back to this page.
T2 Deadline Calculator FAQ
When is my T2 corporate tax return due?+
When is corporate tax actually payable?+
What happens if I file the T2 late?+
Do I have to pay instalments too?+
How do I read the dates this calculator gives me?+
What does the T2 deadline calculator not account for?+
What if my corporation had a short first fiscal year?+
Want these numbers confirmed for your business?
Send an enquiry to a Fraser Valley CPA. We will check the figures against your actual situation and quote a fixed fee.
Have a question about this?
Ask free through the quick-question form; a CPA replies by email within one business day. For a proper look, a 45-minute Advice Call with a CPA is $225 plus GST, booked by email with a secure payment link and credited to your first invoice if you become a client within 60 days. Want us to take it on? Send an enquiry.
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Want the reasoning behind the dates rather than just the dates? See what drives your corporate filing deadline.