--- title: "Corporate Tax Accountant, St. Catharines: T2 & Ontario Return" url: https://www.everstonecpa.com/corporate-tax-accountant-st-catharines description: "T2 returns, year-end statements and the Ontario annual return for St. Catharines corporations, by a CPA at a fixed fee. Send an enquiry today." type: service-in-a-city updated: 2026-10-02 summary: "A St. Catharines corporation pays a combined 11.2% on active business income eligible for the small business deduction for days after 30 June 2026 (12.2% before that date), and 26.5% on income above the $500,000 business limit. The T2 is due six months after year-end, the balance two or three months after it, and the Ontario annual return within six months through the Ontario Business Registry." faq_count: 7 publisher: EverStone CPA Inc., a Chartered Professional Accountant firm registered with CPA British Columbia and CPA Alberta service_area: British Columbia, Alberta, Ontario and Manitoba language: en-CA contact: info@everstonecpa.com · https://www.everstonecpa.com/book-online --- [Home](https://www.everstonecpa.com/) [Accountant in St. Catharines](https://www.everstonecpa.com/accountant-st-catharines) Corporate tax Corporate tax (T2) · St. Catharines # Corporate tax accountant for *St. Catharines* companies An Ontario corporation files one T2 that carries both federal and provincial tax, and a registry return the CRA never mentions. EverStone prepares T2 returns and year-end statements for incorporated [St. Catharines and Niagara businesses](https://www.everstonecpa.com/accountant-st-catharines) remotely, at a fee fixed after we review your enquiry. [Get My Fixed Quote](https://www.everstonecpa.com/book-online?service=corporate-tax#enquiry-form)[Ask a Free Question](https://www.everstonecpa.com/quick-question) **Quick answer:** A St. Catharines corporation pays a combined 11.2% on active business income eligible for the small business deduction for days after 30 June 2026 (12.2% before that date), and 26.5% on income above the $500,000 business limit. The T2 is due six months after year-end, the balance two or three months after it, and the Ontario annual return within six months through the Ontario Business Registry. EverStone handles all three at a fixed fee. For a one-owner St. Catharines 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, two layers of tax Under Ontario’s tax collection agreement, there is no separate provincial corporate return: Ontario schedules ride on the T2 and the CRA collects both. The provincial small-business rate dropped for days after 30 June 2026, so a straddling year-end, such as December 2026, is prorated by days. The [Ontario tax facts page](https://www.everstonecpa.com/ontario-tax-facts) gives the rates and sources. The gap between small-business and general rates drives most planning. Keeping active income inside the business limit, and passive income low enough not to erode it, is now worth more in Ontario than a year ago. ## Deadlines that sit on different calendars Four deadlines follow your fiscal year-end. The tax balance is due two months after, or three for a qualifying Canadian-controlled private corporation claiming the small business deduction. The T2 is due in six months. The Ontario annual return is also due within six months, but goes to the Ontario Business Registry. Annual HST filers file and pay three months after year-end. The payment deadline is the one that catches owners, because it arrives before the return is finished. We estimate the balance before it falls due. The [T2 deadline calculator](https://www.everstonecpa.com/t2-deadline-calculator) gives your dates, and [deadline reminders](https://www.everstonecpa.com/deadline-reminders) keep them in front of you. ## Choosing a year-end that suits a seasonal business A new corporation picks its year-end, and in Niagara that matters. A winery’s December year-end follows harvest, with a full cellar to count and value. A contractor closing mid-season has open jobs, holdbacks and progress bills to cut off. A quiet month makes the count simpler, the cut-off cleaner and the filing work lighter. [How to choose a fiscal year-end](https://www.everstonecpa.com/blog/corporate-fiscal-year-end-canada-how-to-choose) covers the trade-offs. ## Paying yourself out of a Niagara corporation Salary, dividends or a mix depends on personal income, RRSP room, family and the corporation’s spending plans. We model it before year-end and prepare both returns together, so it is decided once. The [salary vs dividends calculator](https://www.everstonecpa.com/salary-vs-dividends-calculator) shows the arithmetic. Other withdrawals need care. A shareholder loan not repaid within one year after year-end is generally taxed as the owner’s income, a common and avoidable reassessment. [Shareholder loans](https://www.everstonecpa.com/blog/shareholder-loans-canada-taking-money-out-of-corporation) explains the rule and the alternatives. ## Industry schedules that change the T2 Niagara’s main industries each bring something to the corporate return. A farm corporation can report on the cash method. A [winery](https://www.everstonecpa.com/winery-accountant-st-catharines) values years of wine in inventory and may run its vineyard as a farming operation alongside a production business. A [contractor](https://www.everstonecpa.com/accountant-st-catharines) reconciles holdbacks and progress billings at the cut-off and files T5018 slips. A [manufacturer](https://www.everstonecpa.com/manufacturer-accountant-st-catharines) claims capital cost allowance on machinery and may have scientific research and experimental development work to claim on Form T661, where a Canadian-controlled private corporation can earn an enhanced refundable credit. ## Instalments once the profits arrive A corporation whose tax this year or last passes the instalment threshold pays through the year. The first profitable year usually has none; the second brings a notice. For seasonal Niagara businesses, instalments based on last year can be too heavy after a poor harvest and too light after a strong tourist season, with interest on any shortfall. We set amounts from a current-year projection, revisit them mid-year, and tell you when a lower payment is defensible. The [instalment calculator](https://www.everstonecpa.com/tax-instalment-calculator) compares the options. ## Statements for the bank, not just the CRA The T2 needs statement schedules, but full statements are read by lenders, landlords, bonding companies or buyers. For most owner-managed corporations the right form is a compilation engagement, whose report plainly gives no assurance. If a lender asks for a review or audit, that is a different engagement, and we will say so. See [compilation engagements](https://www.everstonecpa.com/compilation-engagement-canada) and [financial statement preparation](https://www.everstonecpa.com/financial-statement-preparation-canada). About this article **EverStone CPA** Prepared and reviewed by a CPA at EverStone CPA, serving businesses in BC, Alberta, Ontario and Manitoba. Updated September 2026 . [About the firm](https://www.everstonecpa.com/about) · [Send an enquiry](https://www.everstonecpa.com/book-online?service=corporate-tax#enquiry-form) ## What a St. Catharines corporation files What a St. Catharines corporation files The recurring corporate filings — for a business operating in St. Catharines, Ontario | Filing | When | | T2 corporate return | Six months after fiscal year-end, with the Ontario schedules attached | | Balance of tax owing | Two months after year-end, three for a qualifying CCPC | | Ontario annual return | Within six months of year-end, through the Ontario Business Registry | | T4 and T5 slips | By the last day of February for salary and dividends paid | | Sales tax where you operate | 13% HST, a single registration and a single return | Source: [The corporate tax return](https://www.everstonecpa.com/corporate-tax-return-t2). General information, not advice. In St. Catharines, EverStone also works with restaurants. ## Remote corporate tax EverStone is a fully virtual CPA firm serving St. Catharines online. **There is no St. Catharines office and no local staff.** Meetings are by video or phone, documents by secure upload and e-signature, with no visits. CRA authorization via Represent a Client lets us see notices and balances without forwarded mail. Common questions ## St. Catharines corporate tax questions **What is the corporate tax rate for a St. Catharines company?** Combined federal and Ontario rates are 11.2% on active business income eligible for the small business deduction for days after 30 June 2026, 12.2% for days before, and 26.5% on general income. A taxation year that straddles 1 July 2026 is prorated by days. [Ask about your case →](https://www.everstonecpa.com/quick-question) **Does Ontario have a separate corporate tax return?** No. Ontario corporate tax is administered by the CRA and reported on schedules to the federal T2, so one return covers both. The separate Ontario filing is the annual return to the Ontario Business Registry, which is a corporate-law filing rather than a tax one. **When is the Ontario annual return due?** Within six months of the fiscal year-end. It does not appear on any CRA notice, so it belongs on the same calendar as the T2 due date and the balance-due date. **What does a corporate return cost?** The T2 on its own is quoted after we review your enquiry, because the work depends on the state of the books, inventory and the number of schedules. Where we keep the books all year, the year-end is quicker and usually part of a monthly fee. **Can my manufacturing company claim SR&ED?** Possibly, if the work tried to resolve a technological uncertainty rather than apply known methods. Claims are made on Form T661, and a Canadian-controlled private corporation can earn an enhanced refundable credit. Records kept while the work happens carry the claim. **Do you need to be in Ontario to file my T2?** No. The T2 and its Ontario schedules are filed electronically to the CRA, and the registry return is filed online. EverStone serves St. Catharines remotely. **Do you work with businesses outside St. Catharines itself?** Yes. Corporations based in Niagara Falls, Welland, Niagara-on-the-Lake, Lincoln and the rest of the Niagara Region have their T2 prepared exactly as St. Catharines ones do, remotely and at the same fixed fee. ## Related services and local guides Nearby cities, the rest of what we do for St. Catharines businesses, and the reference pages behind this one. [Bookkeeping for St. Catharines businesses](https://www.everstonecpa.com/bookkeeping-st-catharines) [Personal tax accountant in St. Catharines](https://www.everstonecpa.com/personal-tax-accountant-st-catharines) [Corporate tax (T2) in Hamilton](https://www.everstonecpa.com/corporate-tax-accountant-hamilton) [Corporate tax (T2) in London](https://www.everstonecpa.com/corporate-tax-accountant-london-ontario) [Corporate tax (T2) in Toronto](https://www.everstonecpa.com/corporate-tax-accountant-toronto) [Payroll in St. Catharines](https://www.everstonecpa.com/payroll-services-st-catharines) [Corporate tax hub Every T2 guide in one place](https://www.everstonecpa.com/corporate-tax-hub) [Fixed pricing](https://www.everstonecpa.com/pricing) [Accountants across Ontario](https://www.everstonecpa.com/accountant-ontario) ### What clients say Rated 5.0 on Google across 26 client reviews. [Read all reviews](https://www.everstonecpa.com/reviews) ★★★★★ “…He is very knowledgeable and has saved me tons in taxes by restructuring my group of companies — the best accountant I've worked with in the last 10 years, after switching from three different firms.” Matt Hildebrandt Verified Google review ★★★★★ “…have been completing my bookkeeping, taxes and financials for the last 2 years and they have been amazing. Thank you!” R. H. Verified Google review ### Starting fees Every fee is fixed in writing before any work begins. - **Corporate year-end and T2 return** fixed fee, quoted in writing *This page* - **Monthly bookkeeping, HST filing included** from $325 a month - **Payroll, remittances, T4s and ROEs** included in monthly bookkeeping - **Books, payroll and the year-end T2 together** $500–$700 a month - **Personal tax return (T1)** from $125; self-employed or rental $275–$500 - **Catch-up bookkeeping** from $2,200 per year of records - **Controller or CFO support** controller from $1,650, CFO from $2,750 a month - **One-off advice call with a CPA** $225 plus applicable tax [Get My Fixed Quote](https://www.everstonecpa.com/book-online?service=corporate-tax#enquiry-form) --- Source: https://www.everstonecpa.com/corporate-tax-accountant-st-catharines Prices: https://www.everstonecpa.com/pricing · Contact: info@everstonecpa.com · https://www.everstonecpa.com/book-online