--- title: "Accountant in St. Catharines, ON | Fixed-Fee Remote CPA" url: https://www.everstonecpa.com/accountant-st-catharines description: "Accountant in St. Catharines, ON: a CPA for Niagara businesses, with bookkeeping, corporate and personal tax, payroll and 13% HST. Get a fixed quote." type: location updated: 2026-10-02 summary: "EverStone works with St. Catharines owners entirely online. One firm handles the corporate T2, the owner’s T1, the monthly books, 13% HST and payroll, including Ontario employer health tax and WSIB. Fees are fixed after we review your enquiry, and published starting prices sit on the pricing page . Published fees start at $125 for a personal return and $325 a month for bookkeeping." faq_count: 5 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/) [Ontario](https://www.everstonecpa.com/accountant-ontario) Accountant in St. Catharines St. Catharines, ON · CPA for Niagara owner-managed businesses # Accountant in *St. Catharines* for Niagara businesses St. Catharines sits between Lake Ontario and the Escarpment, cut by the Welland Canal and ringed by vineyards and orchards. EverStone CPA serves it remotely with corporate and personal tax, bookkeeping and payroll, at a fee fixed in writing first. **Who we help here:** wineries and grape growers, tender-fruit and greenhouse farms, restaurants and tourism operators, construction contractors and manufacturers, in St. Catharines and across Niagara Falls, Welland, Niagara-on-the-Lake, Lincoln and the rest of the Niagara Region. [Get My Fixed Quote](https://www.everstonecpa.com/book-online?service=monthly#enquiry-form)[Ask a Free Question](https://www.everstonecpa.com/quick-question) **Quick answer:** EverStone works with St. Catharines owners entirely online. One firm handles the corporate T2, the owner’s T1, the monthly books, 13% HST and payroll, including Ontario employer health tax and WSIB. Fees are fixed after we review your enquiry, and published starting prices sit on the [pricing page](https://www.everstonecpa.com/pricing). Published fees start at $125 for a personal return and $325 a month for bookkeeping. ## One firm for the whole Niagara file Most owner-managed businesses need the same few things done well yearly by someone who remembers last year. A Chartered Professional Accountant handles it all, so whoever codes your HST in March prepares your corporate return in autumn. - [Monthly bookkeeping in St. Catharines](https://www.everstonecpa.com/bookkeeping-st-catharines): bank and card reconciliations, HST coding and a ledger that closes every month. - [Corporate tax for St. Catharines companies](https://www.everstonecpa.com/corporate-tax-accountant-st-catharines): the T2, year-end statements and the Ontario registry return. - [Personal tax in St. Catharines](https://www.everstonecpa.com/personal-tax-accountant-st-catharines): T1 returns for owners, families, landlords and retirees. - [Payroll for St. Catharines employers](https://www.everstonecpa.com/payroll-services-st-catharines): source deductions, T4s, records of employment, employer health tax and WSIB. ## The Ontario rules a Niagara business works under A St. Catharines business charges one 13% HST, files one return and recovers input tax through input tax credits. The CRA also administers Ontario corporate tax, so one T2 covers both. Three provincial obligations sit outside that. The Ontario annual return goes through the Ontario Business Registry within six months of year-end, unprompted. Employer health tax applies past its payroll exemption. WSIB is a separate registration with premiums and clearance certificates. Rates are on the [Ontario tax facts page](https://www.everstonecpa.com/ontario-tax-facts). ## The industries that shape the region Niagara’s economy is not an office economy, and the accounting follows the work. Each of these has a page of its own: - [Wineries](https://www.everstonecpa.com/winery-accountant-st-catharines): a CRA licence under the Excise Act, 2001, wine that ages for years before it sells, and a tasting room that is really a retail store. - Farms and greenhouses: tender fruit, grapes and greenhouse crops, the cash method, zero-rated sales and seasonal crews. - Restaurants and tourism: a summer that carries the year, tips on payroll and a point-of-sale system that has to agree with the bank. - Construction contractors: the 10% holdback, progress billing, T5018 slips and WSIB. - [Manufacturers](https://www.everstonecpa.com/manufacturer-accountant-st-catharines): inventory, job costing, equipment and SR&ED claims on process work. ## A seasonal economy, and what it does to the books Very little in Niagara earns evenly across twelve months. Tourism peaks in summer around the Falls and Niagara-on-the-Lake. Fruit comes off the trees from midsummer into autumn, grapes follow, and icewine is picked in the cold of winter. Construction slows when the ground freezes. That pattern matters for tax. Instalments based on last year can be too high after a wet season and too low after a strong one. An annual HST return can land at the worst point in the cash cycle. Payroll can double in June and halve in October. Closing books once a year hides all of it until too late. We plan with the [instalment calculator](https://www.everstonecpa.com/tax-instalment-calculator) and a cash forecast. [Managing cash in a seasonal business](https://www.everstonecpa.com/blog/managing-cash-flow-seasonal-business-canada) covers the approach. ## What it costs, published before you ask Fees are fixed in writing first, and starting points are public. A personal return starts at $125, and a self-employed T1 commonly runs $275–$500. Bookkeeping starts at $325 a month with GST/HST filing. A trades corporation bundle of bookkeeping, payroll and the T2 with statements usually runs $500–$700 a month. A standalone corporate return is quoted after review. For businesses that need more than compliance, a [fractional controller](https://www.everstonecpa.com/fractional-controller-services) starts at $1,650 a month and a [fractional CFO](https://www.everstonecpa.com/contract-cfo) at $2,750 a month. If you only need one decision talked through, the [45-minute Advice Call](https://www.everstonecpa.com/advice-call) is a flat $225 + GST. ## Moving your file from another accountant Switching is easier than expected. You authorize EverStone through CRA’s Represent a Client, giving us direct access to filings, balances and notices. Prior returns come by secure upload, and we check the last return so opening balances are right. The handover runs in the background, and the first year sets up the recurring items: HST filing period, payroll remittance schedule and registry date. See [how switching accountants works](https://www.everstonecpa.com/switching-accountants), and sign up for [deadline reminders](https://www.everstonecpa.com/deadline-reminders). 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=monthly#enquiry-form) ## Which return applies to you Which return applies to you The structure you trade under decides the return — for a business operating in St. Catharines, Ontario | If you are | You file | | A sole proprietor | A T1 personal return with form T2125 for the business | | An incorporated business | A T2 corporate return with financial statement schedules, plus the Ontario annual return | | A farm or vineyard | Farming income on the T1 or T2, where the cash method is available | | An employer | Source deduction remittances, T4 slips, and employer health tax where it applies | | Sales tax where you operate | 13% HST, a single registration and a single return | Source: [When incorporating starts to pay](https://www.everstonecpa.com/incorporation-advice). General information, not advice. ## Remote accounting EverStone is a fully virtual CPA firm. **There is no St. Catharines office and no local staff.** Meetings are by video or phone, documents by secure upload and e-signature, and whoever answers in July prepared your spring return. Common questions ## Questions from St. Catharines business owners **How much does an accountant cost in St. Catharines?** Fees are fixed in writing after review, with no hourly meter. Personal returns start at $125 and bookkeeping at $325 a month with GST/HST filing; corporate returns are quoted once we see the file. [Ask about your case →](https://www.everstonecpa.com/quick-question) **Can an accountant in BC file my Ontario corporate return?** Yes. The CRA administers Ontario corporate tax, so one T2 carries both the federal and the provincial layer and is filed electronically from anywhere. The Ontario annual return goes to the Ontario Business Registry online in the same way. **Do you work with businesses outside St. Catharines itself?** Yes. The same engagement serves Niagara Falls, Welland, Niagara-on-the-Lake, Lincoln and the rest of the Niagara Region, and anywhere else in Ontario. Because the work is remote, distance from the city centre changes nothing. **When is the Ontario annual return due?** Within six months of your fiscal year-end, filed through the Ontario Business Registry. It is a registry filing rather than a tax filing, so a corporation can be current with the CRA and still fall out of good standing with the province. **When does my business have to register for HST?** Once taxable sales pass $30,000 in four consecutive calendar quarters, registration is mandatory. Registering earlier can make sense for a business with large start-up purchases, because it can then recover the HST it pays. ## 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) [Payroll services in St. Catharines](https://www.everstonecpa.com/payroll-services-st-catharines) [Accounting & CPA services in Hamilton](https://www.everstonecpa.com/accountant-hamilton) [Accounting & CPA services in Kitchener-Waterloo The same CPA engagement, serving Kitchener-Waterloo](https://www.everstonecpa.com/accountant-kitchener-waterloo) [Accounting & CPA services in Toronto](https://www.everstonecpa.com/accountant-toronto) [Get a second opinion](https://www.everstonecpa.com/second-opinion) [Accountants across Ontario](https://www.everstonecpa.com/accountant-ontario) [Ontario tax facts Current rates and thresholds for Ontario](https://www.everstonecpa.com/ontario-tax-facts) ### What clients say Rated 5.0 on Google across 26 client reviews. [Read all reviews](https://www.everstonecpa.com/reviews) ★★★★★ “Personal. Professional. Responsive. Plus he saved me a bundle!” Corrin Skalbeck Verified Google Local Guide ★★★★★ “…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 ### Starting fees Every fee is fixed in writing before any work begins. - **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 - **Corporate year-end and T2 return** fixed fee, quoted in writing - **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=monthly#enquiry-form) --- Source: https://www.everstonecpa.com/accountant-st-catharines Prices: https://www.everstonecpa.com/pricing · Contact: info@everstonecpa.com · https://www.everstonecpa.com/book-online