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Fiscal Year End Calculator for a New Canadian Corporation

Your first T2 fixes your year end for the life of the company, and changing it afterwards needs written CRA approval. Enter your incorporation date and this works out which month end actually suits your business, how many months of personal tax you defer on a year-end bonus at each option, and where the trade-offs sit against a plain 31 December.

All twelve month ends ranked
53-week stub period check
Bonus deferral in months
Seasonality and inventory fit

Step 1 — The Corporation

The first fiscal period starts on this date


Drives whether a short first stub is worth the extra filing

Mix of salary and dividends

Mix of salary and dividends
Salary or bonus only
Dividends only
Not decided yet

Bonus deferral only matters if you will pay yourself a bonus

No real seasonality

No real seasonality
Retail and e-commerce, busy October to December
Construction and landscaping, busy May to September
Tax, bookkeeping and finance, busy January to April
Tourism and hospitality, busy June to September
Agriculture, busy April to October

A year end in the busy month is the one people regret

No inventory, services only

No inventory, services only
Some inventory, easy to count
Significant inventory, a full count takes days

Count the shelves when they are at their emptiest

No

No
Yes, a member of a professional partnership

Partnership members are effectively locked to 31 December

Recommended First Year End


months of bonus deferral

Recommended Year End

First Stub Period

Bonus Deferral Gained

Quiet Season Fit

31 December
Default
First year end date
Length of the first stub period
Within the 53-week limit
Falls in a quiet month
Inventory count timing
Bonus deferral
Personal tax on the bonus first due
Aligns with T4, T5 and personal tax year
Yes
Score

Recommended
Best Fit
First year end date
Length of the first stub period
Within the 53-week limit
Falls in a quiet month
Inventory count timing
Bonus deferral
Personal tax on the bonus first due
Aligns with T4, T5 and personal tax year
Score

All Twelve Month Ends Ranked

Year EndFirst StubAllowedQuiet MonthBonus DeferralScore

Months of Personal Tax Deferral on a Year-End Bonus

31 December
Recommended

Points That Decide This More Often Than the Deferral

    Planning Suggestion

    Disclaimer: This calculator applies the rule that a corporation’s first fiscal period cannot exceed 53 weeks from the date of incorporation, and models the deferral available where a bonus is accrued at the year end and paid within 179 days. It does not calculate your T2 filing deadline, balance-due date or instalment schedule, which are set out on our first-year deadline calendar. It does not model the small business deduction, associated corporation rules, GST/HST reporting period elections, the December 31 requirement for a corporation that is a member of a professional partnership beyond flagging it, or the tax cost of the bonus itself. Scores are a weighting of the factors you enter, not a tax computation. This page is general information, not tax advice.

    You Only Get One Free Choice

    A new corporation does not elect its year end on a form. It sets it by filing its first T2 with a period end date on it, and that date then becomes the fiscal year end for the life of the company. There is no annual reconsideration and no second free choice.

    Changing it later means writing to the CRA and asking for approval. That approval is discretionary, and a request whose only purpose is to move tax between years is routinely refused. Genuine reasons, such as aligning with a new parent company after an acquisition or matching a franchisor’s reporting calendar, are accepted. Wanting a longer deferral is not one of them.

    So the decision is worth twenty minutes at incorporation and it is expensive to revisit. Most new owners default to 31 December because their accountant asked and it was the easy answer. For a fair number of businesses that is the wrong answer.

    The 53-Week Rule and the Stub Period

    The first fiscal period runs from the date of incorporation and cannot exceed 53 weeks, which is 371 days. Every month end inside that window is available, and everything outside it is not. That is the only hard constraint on the choice.

    Within the window there is a soft constraint that owners underestimate. A very short first period, say a company incorporated on 3 August choosing 31 August, produces a first T2 covering four weeks. That return still has to be prepared, still carries a professional fee, and still counts as a full tax year for capital cost allowance purposes, where the half-year rule and short-period proration both apply. A one-month stub is rarely worth what it costs.

    Short periods prorate your CCA. Capital cost allowance is reduced in proportion to the number of days in a short fiscal period. A company that buys equipment and then runs a two-month first year claims roughly one sixth of the normal first-year deduction on it. That is timing rather than a permanent loss, but it matters in the year the money actually went out.

    What a Non-Calendar Year End Actually Buys You

    The single real tax advantage is the bonus deferral, and it works like this. The corporation accrues a bonus to the owner at its fiscal year end and takes the deduction in that year. The bonus does not have to be paid at once. It has to be paid within 179 days of the year end, and it becomes personal income in the calendar year it is actually received.

    Put a year end in the second half of the calendar year and the 179-day window reaches into the following January. The corporation gets its deduction in one year, the owner is taxed in the next calendar year, and the personal tax is not due until 30 April of the year after that.

    Year EndBonus Paid ByOwner Taxed InPersonal Tax DueDeferral
    31 July 202726 January 2028202830 April 202921 months
    30 September 202728 March 2028202830 April 202919 months
    31 December 202727 June 2028202830 April 202916 months
    31 March 202726 September 2027202730 April 202813 months
    31 May 202726 November 2027202730 April 202811 months

    A 31 July year end therefore buys about five months of deferral over 31 December, and about ten months over 31 May. That is a cash-flow benefit rather than a tax saving, and it repeats every year for as long as the company keeps paying bonuses.

    The deferral is worth nothing if you take dividends. Dividends are taxed in the calendar year they are paid and there is no accrual mechanism, so a dividend-only owner gets no benefit at all from a non-calendar year end. If your compensation plan is dividends only, choose the year end on operational grounds and ignore the deferral column entirely.

    When 31 December Is Still the Right Answer

    It usually is, and the reasons are unglamorous.

    • Everything else runs on the calendar year. T4 and T5 slips, personal tax, CPP, EI and RRSP room are all calendar. A December year end means one set of numbers rather than two
    • Bookkeeping is simpler. Bank statements, credit card cycles and most software default to calendar years, and a mid-year cut-off produces more reconciliation errors in the first two years than most owners expect
    • Investors and lenders expect it. A bank comparing your statements to industry benchmarks is comparing calendar years, and a non-standard year end invites questions at exactly the wrong moment
    • A holding company should match its operating company. Where a Holdco receives dividends from an Opco, mismatched year ends complicate the connected corporation refundable tax mechanics for no benefit
    • A professional corporation in a partnership has no real choice. The rules effectively force a 31 December period end for a corporation that is a member of a partnership carrying on a professional practice

    Seasonality and the Inventory Count

    The operational argument is stronger than the tax argument for most businesses, and it is simply this: do not close your books in your busiest month.

    A landscaping company with a 31 July year end is asking its owner to gather receipts, count materials and answer accountant questions in the middle of its peak. The same company with a 31 January year end does its year end work in the dead of winter, when there is time to do it properly. The value of that is real and it never shows up in a tax calculation.

    Inventory sharpens it further. If a physical count takes days, the count should happen when the shelves are emptiest. For retail that is late January, after the Christmas sell-through and before spring stock arrives. A 31 December retail year end means counting the fullest warehouse of the year, in the week everyone wants off.

    Business TypeBusy SeasonSensible Year EndWhy
    Retail and e-commerceOctober to December31 JanuaryLowest stock of the year and the quietest month for the owner
    Construction and landscapingMay to September31 October or 30 NovemberSeason closed, jobs billed, and the deferral window still reaches January
    Tax and bookkeeping practicesJanuary to April31 July or 31 AugustFurthest possible point from filing season, and the longest deferral
    Tourism and hospitalityJune to September31 OctoberSeason closed and staffing back to a skeleton crew
    AgricultureApril to October31 DecemberPost-harvest, and calendar alignment matters for programme reporting
    Professional services with no seasonNone31 December or 31 JulyDecember for simplicity, July if a bonus is part of the plan

    What the Year End Does Not Change

    Owners frequently assume a non-calendar year end moves everything. It moves less than they think.

    ItemFollows the Fiscal YearFollows the Calendar Year
    T2 corporate return and financial statementsYesNo
    Corporate tax instalmentsYesNo
    T4 and T5 slipsNoYes, always
    Payroll source deduction remittancesNoYes, monthly on the calendar
    Owner’s personal T1NoYes, always
    GST/HST reporting periodCan be aligned by electionDefault for many registrants
    Ontario annual returnYes, tied to the tax yearNo

    Your filing dates follow from the date you pick. This page deliberately stops at the choice itself. For the T2 filing deadline, the balance-due date, the first instalment date and the HST and payroll dates that flow from a given year end, please use our new corporation first-year deadline calendar, which takes the same incorporation date and returns the full schedule.

    Changing It Later

    A change requires a written request to the CRA setting out the business reason, and the corporation must keep filing on the old year end until approval is given. Approval is generally granted for sound commercial reasons and refused where the only motive is tax. A few situations do not need approval at all, including a corporation that has wound up its affairs or one whose change is required because control was acquired.

    The practical point is that a change also produces a short transitional period, with the same prorated capital cost allowance and the same extra return that a short first stub would have caused. It is not free even when it is approved.

    What the Calculator Does Not Model

    • Filing and payment dates: handled on the first-year deadline calendar rather than duplicated here
    • The tax cost of the bonus itself: the personal rate, CPP on the salary and the corporate rate on what is left are a separate comparison
    • Associated corporations: where the business limit is shared, the year ends of the group interact and should be set together
    • GST/HST reporting period elections: aligning the HST year to the fiscal year is a separate election with its own filing consequences
    • 53-week floating year ends: permitted for businesses that want the same weekday every year, and used mainly in retail
    • Provincial programme reporting: some grants and agricultural programmes assume calendar-year figures

    Frequently Asked Questions

    Common questions from owners of newly incorporated Ontario and federal companies.

    How do I choose a fiscal year end for my corporation in Canada?
    You choose it by filing your first T2 with that period end date on it. Any month end within 53 weeks of the date of incorporation is available. Weigh three things: whether the month is quiet enough for you to do a proper year end, whether inventory is at its lowest, and whether a year end in the second half of the calendar year would let you defer personal tax on an accrued bonus. There is no form and no election, and the date you file becomes permanent.

    Is 31 December the best year end for a small corporation?
    It is the simplest, because T4 and T5 slips, personal tax and payroll all run on the calendar year, and a December year end means one set of cut-offs rather than two. It is not automatically the best. A seasonal business closing its books in its busiest month, a retailer counting a full Christmas warehouse, or an owner paying themselves a bonus all have concrete reasons to move it. For a dividend-only owner with no seasonality, December is usually right.

    How long can my first fiscal period be?
    The first fiscal period cannot exceed 53 weeks, which is 371 days from the date of incorporation. Every month end inside that window is available. A very short first period is allowed but rarely sensible, because it produces a full T2 with a full professional fee for a few weeks of activity and prorates your capital cost allowance for the days in the period.

    How much tax does a non-calendar year end actually defer?
    It defers timing, not tax. A bonus accrued at the fiscal year end is deductible to the corporation in that year and must be paid within 179 days. A 31 July year end lets the payment fall in the following January, so the owner is taxed a calendar year later and the personal tax is not due until 30 April of the year after that, about 21 months from the year end. A 31 December year end gives about 16 months and a 31 May year end about 11.

    Can I change my corporation’s year end later?
    Only with written CRA approval, and the corporation keeps filing on the old year end until approval is received. Sound commercial reasons such as aligning with a parent company or a franchisor calendar are generally accepted. A request whose only purpose is to shift income between years is routinely refused. The change also creates a short transitional period with prorated capital cost allowance and an extra return.

    Does my year end change when I file T4 slips or pay payroll?
    No. T4 and T5 slips, payroll source deduction remittances and the owner’s personal T1 always run on the calendar year regardless of the corporation’s fiscal year end. Only the T2, the financial statements, corporate instalments and the Ontario annual return follow the fiscal year. That split is the main practical cost of a non-calendar year end.

    Should my holding company have the same year end as my operating company?
    Usually yes. Where a holding company receives dividends from a connected operating company, matching year ends keeps the refundable dividend tax mechanics straightforward and lets both sets of statements be prepared together. Deliberately mismatching them is occasionally used in planning, but it should be a decision made with a specific purpose rather than an accident of two separate incorporations.

    Does a professional corporation have to use 31 December?
    A professional corporation that is a member of a partnership carrying on a practice is effectively required to use a 31 December period end. A standalone professional corporation that is not in a partnership can choose any month end within 53 weeks like any other company, and a mid-year end often suits practices whose own busy season falls in the first quarter.

    Just Incorporated and Not Sure Which Date to Use?

    Tell us your incorporation date, your busy season and how you plan to pay yourself. We will confirm the year end in writing before your first return goes in, while it is still a free choice.

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