Corporate tax accountant in Kitchener-Waterloo

For a one-owner Kitchener-Waterloo corporation, monthly bookkeeping, payroll and the year-end T2 corporate tax return with statements usually cost from $500 to $700 a month all-in.

One return, federal and Ontario together

The CRA administers Ontario corporate tax, so there is no separate return: Ontario schedules ride on the T2, adding the provincial small-business rate. Ontario cut that rate part-way through 2026, so straddling years are blended.

See the Ontario tax facts page for rates. In short: keep active income within the business limit, and do not let passive investment income shrink it. The passive income rule explains.

CCPC status is worth more here than most places

A Canadian-controlled private corporation gets the small business deduction and the enhanced refundable SR&ED credit. Raising money can end that: if non-residents or a public corporation gain control, directly or via share rights, CCPC status can go in the year of the round, changing the rate and the cash refund. We review the register and term sheet before closing.

SR&ED on Form T661, filed with the return

The research claim is part of the T2: Form T661 describes projects and spending, and the schedules compute the credit, refundable for a CCPC, which helps startups with no tax. Two traps: government assistance generally reduces eligible spending, and founder dividends are not research wages. See the SR&ED expenditure limit update and tech startup accounting in Kitchener-Waterloo.

Equipment and capital cost allowance

For manufacturers, contractors and carriers, capital cost allowance is often the biggest deduction. Equipment is pooled by class, and year-end timing changes the claim; machinery, heavy trucks and cars differ. Discuss big purchases first. See CCA classes and manufacturer accounting in Kitchener-Waterloo.

The Ontario annual return is a separate filing

Ontario corporations file an Ontario Business Registry annual return within six months of year-end, separate from the T2, so a perfect tax return can still leave you out of good standing. We diarise it to your year-end.

Getting money out: salary, dividends and loans

Pay method changes both returns. Salary is deductible and builds CPP and RRSP room; dividends are not deductible but simpler. For research founders, only salary counts toward the SR&ED wage base. Shareholder loans not repaid within one year after year-end are generally taxed as income. Try the salary vs dividends calculator.

Instalments once the company turns a profit

A corporation owing tax generally pays instalments the next year. The first instalment year, for a newly profitable startup or contractor, often goes wrong. We set instalments at filing and warn you before the first. See the instalment calculator.