Budget-Friendly Individuals with Significant Control Register for Canadian Businesses

Canadian income tax is built up in layers. You total your income for the year, subtract the deductions you qualify for to arrive at taxable income, then apply the federal brackets and your province's brackets to that figure. Each bracket rate applies only to the income sitting inside it, so earning more never retaxes the dollars below. Non-refundable credits, starting with the basic personal amount, come off the tax afterwards. Look up the CRA bracket table for the tax year you are filing.

Rent on your home is not deductible on a Canadian return. Two situations change that. Self-employed people, and employees who meet the work-space-in-the-home conditions, may claim the share of rent tied to the area used for work. Several provinces also run a property tax or rent based credit, applied for on the provincial schedule filed with your T1, where rent paid affects the amount. Keep receipts and your landlord's details either way.

Most tax saving comes from a short list of levers: contributing to an RRSP or a spousal RRSP, holding investments inside a TFSA, FHSA or RESP so growth is sheltered, claiming every deduction and credit you actually qualify for, and splitting income where the rules allow, such as pension income splitting. Business owners add expense timing and salary versus dividend planning. Order matters, so decide before year end rather than at filing time.

Medical costs give a non-refundable credit rather than a deduction. Eligible items include prescription drugs, dental work, eyeglasses and contact lenses, fees paid to medical practitioners authorised to practise, private health plan premiums, attendant care and travel for treatment unavailable locally. Over-the-counter products and most cosmetic procedures do not qualify. Only the portion above an income-based threshold counts, the claim period may end at any point in the tax year rather than following the calendar year, and pooling the family claim on one spouse usually helps.

Yes, in the year it is received, but the form matters. Salary continuance is ordinary employment income in box 14 of your T4, with regular payroll withholding plus CPP and EI. A lump-sum retiring allowance is reported in box 66 or 67, is not employment income, creates no RRSP room and carries no CPP or EI; tax on it is withheld at the flat lump-sum rates, which rarely match the tax finally owed, so a refund or balance shows up at filing.

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.

No single percentage applies. Income tax is charged in brackets, so your average rate sits well below your top rate; federal rates for 2026 run from 14% up to 33%, and your province adds its own brackets on top. Employees also pay CPP of 5.95% on earnings above the $3,500 exemption to $74,600 and EI of $1.63 per $100 to $68,900 for 2026. The CRA payroll deductions online calculator gives your own figure.

You qualify by being a resident of Canada for tax purposes, meeting the CRA's age or family conditions, and filing a return. There is no separate application: the CRA works out entitlement from the adjusted family net income on your return and your spouse's, so both of you must file even with no income at all. Payments arrive quarterly and stop when a return is missing. Newcomers use the CRA's benefit application for new residents instead.

The CRA does not report balances or late filing to the credit bureaus, so tax debt on its own does not appear on your credit report. It can reach your credit indirectly. The CRA can register a lien against property, obtain a judgment, garnish wages or divert benefits, and steps like those can become public record. Lenders also ask for filed returns and a notice of assessment, so unfiled years can hold up a mortgage or a loan.

You owe a balance when the tax withheld or paid during the year came to less than your total tax for the year. Common causes are two employers each applying the basic personal amount, self-employment or rental income with no withholding at all, investment income, RRSP withdrawals taxed at a flat rate, and CPP or OAS with little tax taken off. For the 2025 tax year the balance was due 30 April 2026. Extra withholding or instalments stops it recurring.

Not automatically. Rates and brackets are the same whether you are single or coupled, so marriage on its own does not reduce the tax on your own income. A refund grows where one partner has little income and the other claims the spouse or common-law partner amount, where unused credits are transferred, or where eligible pension income is split. It can also shrink, because income-tested payments such as the GST/HST credit are based on family income.

Yes. A resident corporation files a T2 for every tax year it exists, even with no revenue and no tax payable, and that filing is usually called a nil return. It is due six months after the fiscal year end. Skipping it invites penalties, holds up loss carry-forwards and leaves payroll, GST/HST and benefit accounts out of step. If the corporation is genuinely finished, dissolving it properly is cleaner than filing empty returns forever.