Affordable Late-Filed Election Relief for Canadian Businesses and Individuals

As the rules stand for the 2025 tax year filed in 2026, the late-filing penalty is 5% of the balance owing plus 1% of that balance for each full month the return is late, to a maximum of 12 months, so 17% at worst. It rises to 10% plus 2% per month for up to 20 months, a 50% maximum, but only where the CRA formally demanded the return and had already charged a late-filing penalty for any of the three preceding tax years. Interest compounds daily.

Start with total income from every source for the year, including employment, self-employment, investments and pensions. Subtract the deductions you qualify for, such as RRSP contributions, child care costs, union dues and deductible employment expenses, to reach net income. Take off any further deductions that apply at the next stage, losses carried forward among them, and what remains is taxable income, the figure the brackets are applied to. Credits reduce the tax calculated on that figure rather than the income itself.

Taxation is the compulsory collection of money by government to pay for public services. In Canada it operates at three levels: federal and provincial income and sales taxes, and municipal property taxes. Income tax is self-assessed, meaning you report your own income and claim your own deductions, and the CRA verifies afterwards through assessment and review. Rates are progressive, so later slices of income are taxed more heavily while the earlier slices stay at lower rates.

Sign in to CRA My Account and read the balance on the account overview, or check the notice of assessment issued after your return is processed. It states the balance owing or the refund and any interest charged. Until the return is prepared there is no figure to check, so an estimate means adding up your slips and deductions. Interest runs on an unpaid balance from the payment deadline, and the CRA will consider a payment arrangement.

File an Access to Information or Privacy Act request with the CRA. Personal records about yourself go through the Privacy Act; other records through Access to Information. You can submit online through the federal ATIP portal or send the government's request form to the CRA's access and privacy office, describing the records and period you want. A request for your own personal information has no application fee; access requests carry a small one. Audit working papers are commonly obtained this way.

Pay through your bank's online bill payment, CRA My Payment, pre-authorised debit set up in My Account, a credit card through a third-party provider, or at a Canadian financial institution with a remittance voucher. Interest runs daily on an unpaid balance from the due date, so pay what you can even if you cannot clear it all. If you cannot pay in full, call the CRA to arrange a payment plan; penalty and interest relief is requested on form RC4288.

Employment Insurance benefits are taxable income, so what lands in your account is less than the gross weekly rate Service Canada quotes. Tax is withheld at source, but the withholding often assumes EI is your only income, so if you also worked during the year you can still owe at filing time. Service Canada issues an EI benefits slip at year end, which you report on your return. Set aside a cushion.

T4 slips and the T4 Summary are due by the last day of February following the calendar year they cover, and employees should have their copies by then as well. If that date falls on a Saturday, Sunday or a public holiday the CRA recognises, the return is on time if the CRA receives it, or it is postmarked, on or before the next business day. Late filing carries a penalty that rises with the number of slips.

Close, but not identical. Retiring allowance is the tax term: an amount received on or after retirement or loss of office, including severance, a retirement gratuity and unused sick-leave credits. Severance is the employment-law word for compensation on dismissal, and most of it falls inside the retiring allowance definition. Retiring allowances are reported on a T4 in their own box, taxed as income, with no CPP or EI withheld, and may be partly transferable to an RRSP.

EI benefits do not arrive on a T4. Service Canada issues its own benefits slip showing what you were paid and any tax withheld, and posts it in My Service Canada Account as well as CRA My Account, in good time for the filing deadline. EI is taxable, and withholding at source is often lighter than your real rate, so a balance can be owing. Report the slip even if no paper copy reaches you.

A pattern of owing usually means withholding is set too low for your actual situation rather than an error on the return. Two employers, an employer plus a pension, commission income, tips or a side business each produce a combined income taxed at a higher rate than any single payer withholds for. Ask your main payer to deduct extra tax each pay, and set aside a share of untaxed income yourself. Repeated large balances can also bring instalment requirements.

Taxable income is what remains after deductions. A personal return moves through stages: total income from all sources, then net income after deductions such as registered retirement savings plan contributions, child care costs and union dues, then taxable income after any further deductions. Tax is calculated on that taxable income using the federal and provincial brackets, and non-refundable credits are applied afterwards, which is why a credit and a deduction are not worth the same amount.