When is a T2 corporate tax return due in Canada?

Two different deadlines, easy to confuse

Every corporation resident in Canada must file a T2 return within six months of its fiscal year-end, whether that year-end falls on December 31 or any other date the corporation has chosen. This filing deadline is separate from the deadline to pay any tax owing, which comes earlier. A corporation with a June 30 year-end, for example, must file its T2 by December 31, but if it owes tax, that balance was due back in either August or September, well before the return itself is filed.

When the balance of tax is actually due

The general rule is that any tax balance owing is due two months after the corporation’s fiscal year-end. A shorter, more favourable window applies to a Canadian-controlled private corporation (CCPC) that claimed the small business deduction in the current or prior year: that balance is due three months after year-end instead, provided the corporation’s taxable income, combined with associated corporations, stays under the threshold the CRA sets for this faster deadline. Because interest on an unpaid balance starts accruing from the payment due date, not the filing due date, a corporation that waits until the six-month filing deadline to figure out what it owes can already be carrying weeks or months of interest by the time the return is filed.

Nil returns and inactive corporations still have to file

A T2 must be filed even when the corporation had no income, no activity, and no tax owing for the year. An inactive holding company, a corporation between projects, or a newly incorporated company that has not started operating yet all still owe a return on the six-month schedule. A shorter version, the T2 Short Return, is available to some CCPCs with straightforward, nil or simple-income years, but eligibility depends on meeting specific CRA conditions and it does not change the underlying deadline.

Instalments run on a separate schedule again

Larger or more established corporations are usually required to pay tax in monthly or quarterly instalments throughout the fiscal year, based on an estimate of the current year’s tax or the prior year’s actual tax, rather than paying the whole balance at the year-end deadline. Instalment obligations are calculated and tracked separately from the year-end balance and the filing deadline, and getting them wrong carries its own instalment interest, on top of whatever else is owing at year-end.

What it costs to file late

The CRA charges a late-filing penalty of 5% of the unpaid tax at the filing deadline, plus 1% for each additional full month the return is late, up to a maximum of twelve months. That penalty rate doubles for a corporation that was already charged a late-filing penalty in one of the prior three years and receives a formal demand to file, which makes repeat lateness considerably more expensive than a first-time slip. Separately, unpaid tax accrues daily compound interest at the CRA’s prescribed rate from the original payment due date, regardless of when the return is eventually filed.

A newly incorporated business faces the same clock sooner than expected

A corporation's first fiscal year does not have to run a full twelve months, and many new corporations pick a shorter first year deliberately, to align with a calendar year-end or simply because incorporation happened partway through what would otherwise be the first period. Whatever the length of that first year, the same six-month filing rule and two- or three-month payment rule apply from that year-end, which means a corporation incorporated in, say, February can face its first T2 filing deadline well before its first anniversary of being in business. New owners are sometimes surprised that a return is due this soon, especially if bookkeeping was not kept current from the start.

There is no general extension available simply because a corporation is new or because its books are not ready. The CRA does allow limited relief in specific circumstances, such as a natural disaster affecting a taxpayer's ability to file, but running behind on bookkeeping is not one of the recognized grounds, which is part of why keeping records current throughout the year matters more than trying to catch up in the final weeks before a deadline. Late-filed returns and unpaid instalments compound quickly, since interest and penalties are both calculated from the original deadline rather than from whenever the shortfall is eventually noticed, so a small gap discovered early is almost always cheaper to fix than the same gap left to grow for several more months.

Why the fiscal year-end date matters here

Because both deadlines are counted from the corporation’s own fiscal year-end rather than from a fixed calendar date, the actual filing and payment dates move every year for corporations that do not use a December 31 year-end. This is one of the reasons the choice of fiscal year-end, covered in what fiscal year-end should I choose for my corporation, deserves thought at incorporation rather than being left to default to whatever date the corporation happened to start operating.

How we handle this

We calendar both the filing deadline and the payment deadline for every corporate client from the day their fiscal year closes, not from when their records happen to be ready, so instalments and the year-end balance are never a surprise. This sits inside our corporate tax services and our year-round bookkeeping work that keeps the numbers current enough to estimate the balance early.

Source: CRA — When to file your corporation income tax return.