T2 corporate tax — the deadlines that matter
The T2 is the federal corporate income tax return every Canadian corporation must file annually, regardless of whether the business made money. Filing late triggers automatic penalties; paying late triggers interest at the prescribed rate. The two deadlines are not the same date — and that is where most corporations slip up in their first year.
This guide walks through the T2 filing deadline, the separate T2 payment deadline, the corporate tax instalment schedule, when the T2 short return applies, the BC corporate tax integration, the deadline math for non-calendar fiscal years, and the penalty schedule with worked examples.
The two T2 deadlines — filing vs payment
Filing deadline
A corporation must file its T2 within 6 months of fiscal year-end. So a 31 December 2026 fiscal year-end means the T2 must be filed by 30 June 2027.
This applies whether the corporation owes tax or not. A nil-return T2 is still due by the 6-month deadline.
Payment deadline
The payment deadline is earlier than the filing deadline:
- Canadian-Controlled Private Corporations (CCPCs) eligible for the small business deduction: balance due 3 months after fiscal year-end
- All other corporations: balance due 2 months after fiscal year-end
So a typical BC small-business corporation with a 31 December year-end must pay any T2 balance owing by 31 March 2027, even though the return itself is not due until 30 June 2027.
If you file the return on 30 June but pay on 30 June, you owe 3 months of interest even though the return was filed on time. This is the single most common T2 mistake.
CCPC small business deduction — what it does
A Canadian-Controlled Private Corporation that earns active business income up to $500,000 a year qualifies for the small business deduction (SBD). In BC, that means a combined federal + BC corporate tax rate of about 11% on the first $500,000 of active business income, versus roughly 27% above the SBD threshold.
The CCPC eligibility is also what gets you the 3-month payment deadline instead of 2 months. The trade-off: most BC small business corporations are CCPCs by default, so this works in your favour.
The $500,000 small business limit phases out as taxable capital approaches $50 million — almost no SMB hits this — and as passive investment income inside the corporation crosses $50,000/yr (this one trips up corporations holding investment portfolios).
Corporate tax instalments
Once a corporation owes more than $3,000 in federal tax (or BC provincial tax) for the year, it must pay tax in instalments throughout the next year, not in a lump sum at year-end.
CCPCs eligible for the small business deduction pay quarterly instalments. All other corporations pay monthly instalments.
CRA offers three instalment options — pick the lowest:
- Current-year option — instalments based on estimated current-year tax. Risky if you underestimate.
- Prior-year option — instalments based on last year's tax payable. Most predictable.
- No-calc option — CRA tells you the instalment amount in writing.
Quarterly instalment due dates for a 31 December year-end CCPC:
- Q1 — 31 March
- Q2 — 30 June
- Q3 — 30 September
- Q4 — 31 December
Missing instalment dates triggers instalment interest. The federal prescribed rate hovers around 8% — a $20,000 missed instalment for 6 months costs roughly $800 in interest before any other penalties.
Non-calendar fiscal years — the math
Many BC corporations choose a non-calendar fiscal year (often July → June or April → March) for tax-deferral or seasonality reasons. The deadline math:
- Fiscal year-end 31 March 2026: payment due 30 June 2026 (CCPC) or 31 May 2026 (non-CCPC); filing due 30 September 2026.
- Fiscal year-end 30 June 2026: payment due 30 September 2026 (CCPC) or 31 August 2026; filing due 31 December 2026.
- Fiscal year-end 30 September 2026: payment due 31 December 2026 (CCPC) or 30 November 2026; filing due 31 March 2027.
The key principle: count from your fiscal year-end, not the calendar.
When the T2 short return applies
The T2 Short Return is a 2-page version of the full 8-page T2 (plus schedules). It is available to:
- CCPCs with no taxable income and no taxable Canadian capital, OR
- Tax-exempt corporations, OR
- Inactive corporations
If your BC corporation had no revenue, no expenses to claim, and is essentially dormant, the T2 short return is acceptable. Most active corporations cannot use it — even small revenues with associated expenses kick you back to the full T2.
BC corporate tax integration
BC corporate tax is filed on the same T2 return as federal tax. There is no separate provincial corporate return — CRA collects and remits BC's share. BC's corporate rates for 2026:
- General corporate rate: 12%
- Small business rate: 2% on the first $500,000 of active business income (qualifying CCPCs)
Combined federal + BC for a CCPC under the SBD: roughly 11%. Combined above the SBD: roughly 27%.
A BC corporation also files separate filings outside the T2:
- GST/HST and PST returns — quarterly or monthly depending on volume
- WorkSafeBC — quarterly payroll-based premiums
- Employer Health Tax (EHT) — only if BC payroll exceeds $1M/yr
- BC Annual Report — filed with BC Registries each year, separate from the T2
Penalty and interest schedule
Late filing of T2
- 5% of unpaid tax on the day the return was due
- Plus 1% per month the return is late, up to 12 months
- If the corporation is a repeat late-filer (failed to file in any of the prior 3 years and CRA issued a demand), the penalty doubles: 10% + 2% per month, up to 20 months
Worked example: $40,000 T2 owing, filed 4 months late.
- Base penalty 5% × $40,000 = $2,000
- 1% × 4 months × $40,000 = $1,600
- Penalty subtotal = $3,600
- Interest at ~8%, prorated 4 months = ~$1,070
- Total cost of being 4 months late: ~$4,670 on top of the $40,000
Late payment
Even if filed on time, payment after the deadline accrues interest at the prescribed rate (compounded daily). No fixed-percentage penalty — just relentless interest.
Failure to file electronically
Corporations with revenue over $1 million must file the T2 electronically. Paper filing triggers a $1,000 penalty.
Common T2 deadline questions
My corporation had no activity all year. Do I still file?
Yes. A nil-return T2 is still required. Failure to file triggers the late-filing penalty even if the tax owing is zero — though with zero owing, the percentage-based penalty is also zero, but CRA can still impose a $100 minimum.
Can I extend the T2 filing deadline?
There is no equivalent to the personal T1 extension. The T2 deadline is fixed at 6 months after fiscal year-end. Late filing always triggers the penalty schedule above unless CRA grants administrative relief under the Taxpayer Relief Provisions for genuine hardship.
What about RC59 — does that change my filing deadline?
The RC59 authorisation form lets your bookkeeper or tax service act on your behalf with CRA — it does not change deadlines. It just means we can call CRA, handle correspondence, and file electronically without you having to be on every call.
Do I file a T2 for a numbered company that holds only my home?
Most personal-use holding entities are still required to file. If the corporation owns property or holds investments in any active capacity, it owes a T2. The exception is genuinely-dormant corporations that may use the T2 Short Return.
When should I incorporate to time my first T2?
Most CPAs recommend incorporating with a fiscal year-end that gives you 11–12 months of breathing room before the first T2. Incorporating in February with a December year-end means the first T2 covers a partial year — fine, but compresses planning.
What schedules attach to a typical T2?
The full T2 has more than 80 schedules covering specific tax topics. Most BC small business T2 returns use a familiar handful: Schedule 1 (net income for tax purposes — bridges accounting income to taxable income), Schedule 8 (capital cost allowance — tax-side depreciation), Schedule 50 (shareholder information), Schedule 100 / 125 (balance sheet and income statement in CRA's GIFI format), and Schedule 200 (tax calculation). For corporations claiming SR&ED, T661 and Schedule 31 attach. For dividends paid, Schedule 3 and the T5 slips run in parallel. The CPA picks the right schedules based on the year's activity — you do not need to memorise them, but if your CPA produces only the GIFI schedules and the tax calc, ask what else applies.
How does the T2 interact with personal taxes?
The T2 closes the corporate side, but compensation paid to owners flows to personal returns separately. Salary triggers a T4; dividends trigger a T5. Both slips arrive in late February for the prior calendar year and feed the owner's T1 personal return (due 30 April, or 15 June for self-employed). A clean T2 process produces the T4 and T5 slips on time, which is why we coordinate corporate and personal year-end together when we run the tax service for clients.
The clean way to handle the T2
The pattern that keeps T2 filings boring:
- Bookkeeper closes the books by the 15th of the month after fiscal year-end.
- Year-end package goes to the CPA by the end of the second month after year-end.
- CPA files the T2 and pays the balance owing by the 3-month CCPC payment deadline.
- Instalments for the next year are scheduled in CRA My Business Account immediately after the T2 is filed.
If your prior year's T2 was filed late or the books are not closed, our tax service and cleanup service handle both ends of the problem. Book a scoping call and we will tell you whether your timeline is on track or whether you are heading toward a penalty before you know it.