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St. Catharines accountants and remote tax filing

Tax Accountant in St. Catharines: File Your Taxes Online

St. Catharines clients can file with us online: you send your slips, we prepare the return, you review and approve it, and we e-file it with the CRA, with no office visit. We do not have an office in St. Catharines; you can meet us at our Guelph Branch on Edinburgh Road South in Guelph if you prefer. The City of St. Catharines bills property tax in four instalments, requires a licence for short-term rentals and licenses many kinds of business, so this page sets out the points that matter to owners and landlords.

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Prefer to meet in person? You can visit our Guelph Branch. See our locations

The stone St. Catharines City Hall with its columned entrance and seasonal garlands, across its lawn St. CatharinesCity Hall, St. Catharines
Photo: Gogerr via Wikimedia Commons, CC BY-SA 4.0, resized

File your taxes online from St. Catharines

From Port Dalhousie and downtown to Merritton and Grantham, you can file from home. Send your slips and receipts through our remote tax filing service, review the finished return and approve it before we e-file it with the CRA.

  1. Tell us about your return

    A short request form, with no sensitive information asked.

  2. Send your slips and receipts

    We explain how to share them safely after your request.

  3. We prepare your return

    An accountant prepares it and checks it before you see it.

  4. You review and approve

    Nothing is filed until you say so.

  5. We e-file with the CRA

    You get your copies and know what happens next.

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St. Catharines Property Tax, Short-Term Rental Licence and Business Licences

What to know, from the official pages named on each card. We last checked them on October 30, 2026.

St. Catharines property tax: four instalments and a 4:30 p.m. cut-off

For 2026 the interim instalments were due on February 27 and April 30, and the final instalments on June 30 and September 29. The City says all payments must be received by 4:30 p.m. on the due date, and that penalty fees are applied on the first day of default and again on the first day of each following month until the balance is paid. It offers pre-authorized plans, with an instalment option and a monthly option, withdrawn automatically on the scheduled dates, and says its monthly plans have no added interest. You can pay through your bank, online, in person at City Hall or by cheque.

Source: City of St. Catharines: tax payments and rates (opens in a new tab)

Short-term rentals in St. Catharines need a licence and must be your own home

A short-term rental in St. Catharines must be the primary residence of the operator, whether the owner or a tenant, and the rental is secondary to that home use. A stay may not exceed 28 consecutive days, and the City requires one parking space per bedroom, with on-street parking not counting. Licences are issued for two years. Applications need general liability insurance of at least 2 million dollars per occurrence, a letter from a licensed electrician dated within 12 months, a fire safety protocol, a site plan, floor plans, a parking management plan, proof of ownership or a lease, and photos. Demerit points stay on a licence for two years and can lead to a three-month suspension or revocation. Rental income belongs on your tax return, and we can help you report it.

Source: City of St. Catharines: short-term rental licensing (opens in a new tab)

Business licences in St. Catharines, renewed every year

A business licence is required for many kinds of business in St. Catharines, and most can operate with the City's general business licence. Some need their own: amusement arcades, auctioneers, bill posters, event promoters, hawkers and peddlers, master plumbers and plumbing contractors, public halls, refreshment stands and restaurants, second level lodging houses, and theatres. All licences are renewed every year, and they can be subject to fire inspection, health inspection and zoning approval. You can apply online, in person at the Planning and Building Services counter at City Hall, or by mail. We can help you work out what applies to your business and keep its books.

Source: City of St. Catharines: business licences (opens in a new tab)

Tax and accounting services for St. Catharines

The same services whether you file online, call us or visit an office.

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Also useful: our free income tax calculator and the tax deadlines list.

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St. Catharines tax questions

Yes. St. Catharines clients can send their slips and receipts through our remote tax filing service, review the finished return and approve it, and we e-file it with the CRA. No office visit is needed.

In 2026 they were due February 27 and April 30, then June 30 and September 29, by 4:30 p.m. The City's final-bill notice says a late charge of 1.25% applies to payments received after that, with further charges each month, so follow the dates on your bill.

Yes, with a City licence, but it must be your primary residence, stays cannot exceed 28 consecutive days, and one parking space per bedroom is required. Licences are issued for two years.

Many do. Most businesses can operate with the City's general business licence, while arcades, auctioneers, hawkers and peddlers, public halls, refreshment stands, lodging houses and others need their own. Licences are renewed every year.

No. You can meet us at our Guelph Branch at 3-7 Edinburgh Road South, Guelph, N1H 5N8 if you prefer. Most St. Catharines clients file online with our remote tax filing service, and you can call first if you would like to visit.

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