Budget-Friendly Unfiled Corporate Tax Returns for Canadian Businesses

Online banking is the simplest route: add the CRA as a payee, select the account and tax year precisely, and pay from your chequing account. CRA My Payment takes debit card payments, and pre-authorised debit can be scheduled in My Account or My Business Account for a single amount or a run of instalments. Corporations and GST/HST registrants use the same channels under their business number. Keep the confirmation number and allow several days for the payment to post.

Call the individual or business enquiries line published on the CRA contact page at canada.ca. Have your social insurance number or business number, your date of birth and a figure from a recent return ready, because the agent verifies your identity before discussing anything. Lines are busiest just after filing season opens and near deadlines, so early morning usually connects faster. You can also send a secure message from My Account, or authorise a representative to call on your behalf.

The route depends on the structure. A sole proprietor or partner reports business income on Form T2125 and files it with the personal T1 return; for the 2025 year the self-employed filing deadline was 15 June 2026, while any balance owing was due 30 April 2026. An incorporated business files a separate T2 corporate return for each fiscal year, due six months after that year end, on top of whatever the owner reports personally.

Salary or dividends, or a blend of both. A salary is deductible to the corporation, is reported on a T4, creates RRSP room, and needs a payroll account with CPP at 5.95% from each side for 2026. A dividend needs no payroll account but gives the company no deduction, and builds no CPP or RRSP room. Taking cash without recording either creates a shareholder loan that becomes taxable in your hands if it stays outstanding too long.

There is no fixed percentage. Your employer withholds federal income tax, where 2026 brackets start at 14%, plus provincial tax, CPP at 5.95% on earnings between the $3,500 exemption and the $74,600 ceiling, and EI at $1.63 per $100 of insurable earnings up to $68,900. Credits claimed on your TD1 reduce the income tax part. Higher earners also pay CPP2 at 4% on earnings between the ceiling and $85,000 for 2026.

The business number is the single identifier the CRA uses for your business, with a separate programme account opened under it for each obligation: GST/HST, payroll deductions, corporate income tax, import and export. Register through Business Registration Online, by phone or by mail, or receive one automatically when you incorporate federally. You need it before you can remit payroll or file GST/HST. Provincial registration is separate in some provinces, notably Quebec, where Revenu Québec administers its own accounts.

Start by claiming everything you are entitled to: RRSP contributions, child care, moving and employment expenses, self-employment costs, tuition, medical expenses, donations and the credits that follow your family situation. Timing helps too, such as deferring a bonus or triggering a capital loss against a gain. Pension income splitting and spousal RRSP contributions move income to a lower-rate spouse. For a business, incorporating and planning how money is drawn out matters. Leaving income unreported is evasion, not planning.

There is no single definition. For tax the test that matters is the small business deduction: a Canadian-controlled private corporation earning active business income claims the lower rate on the first $500,000 of it for 2026, shared across associated corporations. Federally that limit falls by $5 for every $1 of adjusted aggregate investment income above $50,000 and is gone at $150,000, while Ontario keeps the full $500,000. Grant and lending programs use their own headcount or revenue tests.

The CRA does not hand back a completed copy of your corporate return to download. Sign in to My Business Account to see assessed figures, notices of assessment, balances and account history for the corporation, which is usually what a lender or buyer wants. The return itself comes from whoever filed it: your tax software file or your preparer's records. The CRA will also release account information in writing when proper authorisation is on file.

Yes. Dividends and most other investment income are taxable in the year received, but interest is reported as it accrues each year, so a compound GIC or strip bond produces taxable interest annually even though nothing is paid out until maturity; the amounts usually appear on a T5 slip, and income below the slip-issuing threshold still has to be reported. A share's rise in value is taxed only when you sell, and only part of the resulting capital gain is included in income.

Medical expenses cannot be carried forward to a future year the way tuition or a capital loss can. What you can do is choose the period the claim covers, and that period does not have to match the calendar year, so expenses from late in the previous year can be grouped with this year's and clear the income-based threshold once instead of twice. Pick the period that captures the largest total, then claim all of it on one return.

No. Income tax, CPP contributions and EI premiums are three separate deductions taken from pay and remitted together, each in its own box on a T4. Only the income tax withheld is credited against the tax your return calculates and refunded if too much was taken. The CPP and EI amounts still do work of their own: employee EI premiums and the base part of CPP contributions give non-refundable credits, and the enhanced part of the CPP contribution is a deduction from income.