An incorporated IT contractor files two returns every year: a T2 corporate return for the corporation and a T1 personal return for themselves as an individual. The two returns are connected. Decisions made when preparing the T2 directly affect what appears on the T1, and vice versa. Planning one without considering the other produces gaps that are difficult to correct after both returns are filed.
This article covers what each return contains, when each is due, and how compensation and tax decisions flow between them.
What the T2 covers
The T2 is the corporation’s annual income tax return. It reports the corporation’s revenue, deductible expenses, and resulting taxable income for the fiscal year. Salary paid to the shareholder-employee is a deductible corporate expense and reduces corporate taxable income when paid or properly accrued before the fiscal year-end.
For IT contractors, the T2 typically includes:
- contract revenue from client invoices
- subcontractor costs, if any
- software subscriptions, equipment, and home office costs allocated to the corporation
- insurance, professional fees, and bank charges
- salary paid to the shareholder, if any (deducted from corporate income)
- interest on shareholder loans, if applicable
The small business deduction reduces the federal corporate tax rate on active business income up to the business limit (CAD $500,000). Provincial rates vary. In Ontario, the combined federal-provincial rate on income eligible for the small business deduction has been approximately 12.2%, though Ontario has announced a reduction in the provincial small business rate that will lower the combined rate once in effect. Confirm the rate applicable to your fiscal year with a CPA.
The corporation’s fiscal year-end is not necessarily December 31. Many professional corporations choose a non-calendar year-end for planning flexibility. The T2 return is due six months after the fiscal year-end. Corporate tax owing is due earlier: two months after the fiscal year-end for most corporations, or three months for eligible Canadian-controlled private corporations (CCPCs). See CRA’s corporate payment deadlines for the conditions that apply.
What the T1 covers
The T1 is your personal income tax return. It reports all income you received personally during the calendar year, including:
- salary received from the corporation (shown on a T4 slip)
- dividends received from the corporation (shown on a T5 slip)
- income from other sources: employment, investments, rental, or foreign
- deductions: RRSP contributions, union or professional dues, moving expenses if applicable
- credits: basic personal amount, CPP contributions, charitable donations, medical expenses
The T1 is due April 30. CRA extends the filing deadline to June 15 when the taxpayer or their spouse or common-law partner carried on a business during the year, but any balance owing still accrues interest from April 30. An incorporated contractor who receives only salary and dividends from the corporation is not carrying on a business personally, so the April 30 deadline normally applies. The June 15 extension would apply only if the contractor also has direct self-employment income, such as from unincorporated consulting work or side contracts.
How the two returns connect
The salary the corporation pays you deducts from corporate income on the T2 and adds to your personal income on the T1. The corporation issues a T4, deducts CPP, and remits payroll. You claim the T4 income on your T1 and generate RRSP contribution room equal to 18% of that earned income.
Dividends work differently. The corporation pays dividends from after-tax corporate profit. No deduction appears on the T2. The corporation issues a T5, and you report the dividend income on your T1 under the gross-up and dividend tax credit system. Dividends generate no RRSP room and no CPP contributions.
The combined tax result of the T2 and T1 depends on the mix of salary and dividends, the corporation’s income level, your personal income from all sources, and your province of residence. Canadian tax integration attempts to align the combined corporate and personal tax burden with what you would have paid as a sole proprietor, but the result varies and the timing of taxes paid differs significantly.
The shareholder loan account
Money you advance to the corporation or withdraw from it outside of salary and dividends flows through the shareholder loan account. Advances are a liability on the corporate balance sheet. Repayments reduce that liability.
Section 15(2) of the Income Tax Act requires that a shareholder loan be repaid within one year after the end of the corporation’s fiscal year in which it was made, or it may be included in your personal income. This rule is subject to exceptions and anti-avoidance provisions, including rules targeting series of loans and repayments structured to avoid income inclusion. The rule targets personal expenses paid by the corporation without corresponding salary or dividend treatment.
The shareholder loan account is reconciled on the T2 and carries tax consequences when it is not kept current. It is one of the most common sources of errors in small corporation files.
Timing: why both deadlines matter
The T2 and T1 are filed on different schedules, but the decisions that determine both returns happen before either is filed.
For a corporation with a December 31 year-end, the T2 is due June 30. The T1 is due April 30, based on the same December 31 calendar year. In practice, the T1 is prepared first or alongside the T2. The salary and dividend amounts from the corporate year need to be finalized before either return is filed, because a change to one changes the other.
For a corporation with a non-calendar fiscal year-end, the mismatch is more pronounced. If the corporation’s year ends January 31, the T2 covers February through January. The T1 covers the same calendar year January through December but includes salary and dividends paid from two corporate fiscal years. Coordinating the two returns requires tracking compensation by calendar year against corporate years that do not align.
Corporate tax instalments are due monthly or quarterly depending on the corporation’s prior-year tax liability. Personal income tax instalments are due quarterly when the personal balance owing exceeds a threshold. Both instalment streams run independently, and both affect cash flow during the year.
Corporations incorporated in Quebec have additional obligations. A separate Quebec corporate income tax return (CO-17) is filed with Revenu Québec alongside the federal T2, and Quebec residents file the TP-1 personal return alongside the federal T1. Quebec also administers GST on behalf of the federal government and levies its own QST, and QPP replaces CPP for payroll purposes. See the Quebec incorporated IT contractors guide for how the four-return structure works in practice.
What gets missed when the two returns are not planned together
Compensation set too late. Salary must be paid and recorded before the corporate year-end to be deducted in that year. Waiting until the T2 is being prepared means the salary decision is effectively retroactive. Retroactive compensation is harder to document and cannot be structured to optimize RRSP room or CPP contributions for the prior year.
RRSP room not used. If the compensation mix leans heavily toward dividends, RRSP contribution room may be lower than expected. Room lost in prior years is not recoverable. The connection between salary level, RRSP room, and personal deduction capacity needs to be part of the annual planning discussion, not a discovery made when reviewing the Notice of Assessment.
Corporate tax balance underestimated. Without a quarterly review of corporate income and instalments paid, the tax balance owing on the T2 can be larger than the corporation’s cash position supports. This is especially common in the first year after incorporation, when the contractor is building revenue and has not yet established an instalment rhythm.
Shareholder loan not cleared. Personal expenses passing through the corporate account without corresponding salary or dividend treatment accumulate in the shareholder loan. If the balance is not cleared within the required window, CRA includes it in personal income. Finding the problem after both returns are filed requires amendments and may involve penalties.
What a coordinated filing process looks like
The T2 and T1 are prepared based on decisions made during and immediately after the corporation’s fiscal year. A coordinated process involves:
- confirming the compensation mix before the corporate year-end, not after
- verifying instalment obligations for both corporate and personal accounts
- reconciling the shareholder loan account at year-end before preparing either return
- reviewing the T1 impact of salary and dividend amounts before the T2 is finalized
- confirming RRSP contributions are made by the deadline for the tax year (60 days after December 31; for the 2025 tax year, CRA’s deadline is March 2, 2026), based on confirmed earned income from salary
The T2 and T1 are filed separately and on different schedules, but they are planned as a unit. A CPA handling both returns can see where changes to one affect the other. A contractor filing the T2 independently through an accountant and the T1 personally, or through a different preparer, typically loses that coordination.
For contractors who are still deciding whether to incorporate, the sole proprietor vs corporation comparison and the incorporation decision guide cover the threshold analysis before the T2 obligation begins.
For incorporated IT contractors, the T2 and T1 are connected at every step of planning and preparation. Working with a CPA who handles both returns together and reviews the compensation decisions before the fiscal year-end produces the most accurate and coordinated result. Filing one return independently while another preparer handles the other creates the gaps this guide describes.