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Oshawa accountants and remote tax filing

Tax Accountant in Oshawa: File Your Taxes Online

Oshawa clients can file their taxes 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 Oshawa; the closest is our Eglinton Branch on Eglinton Avenue East in Scarborough, if you would like to meet in person. The City of Oshawa licenses short-term rentals and many kinds of business under a licensing by-law that took effect in November 2024, so this page sets out what to know.

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Prefer to meet in person? Our closest office is the Eglinton Branch. See our locations

Parkwood Estate, the columned mansion with a green tile roof, set among clipped hedges in Oshawa OshawaParkwood Estate, Oshawa
Photo: Robert AD Scott via Wikimedia Commons, Public domain, resized

File your taxes online from Oshawa

From the lakeshore to the north end, you can file without leaving home. Upload your slips and receipts through our remote tax filing service, check 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.

Start remote tax filing See in-person location

Oshawa Property Tax, Short-Term Rental Licence and Business Licensing

What to know, from the official pages named on each card. We last checked them on October 29, 2026.

Oshawa property tax: penalties, interest and pre-authorized plans

The City charges a penalty of 1.25% on overdue taxes on the first business day of each month they stay unpaid, and adds interest on the first business day of each later month. The City says penalties and interest cannot be waived unless it made an error. Its pre-authorized plan can follow the instalment due dates or withdraw monthly on the 1st or 15th, and written requests to join or adjust it are due by January 31 for the interim bill or June 1 for the final bill. You can also pay through online or telephone banking, through your mortgage company, at a financial institution or in person at Service Oshawa. Follow the due dates on your bill.

Source: City of Oshawa: paying property taxes (opens in a new tab)

Short-term rentals in Oshawa need a City licence

Every short-term rental operator must hold a City licence under Licensing By-law 122-2024. The rental must be the operator's principal residence, and in a two-unit dwelling or multi-unit building only the unit the operator lives in can be used. Stays are limited to fewer than 28 consecutive days and no more than 180 days in a calendar year. The City requires liability insurance of at least $2 million that names the short-term rental use, and a local contact who can attend within one hour. Rental income also belongs on your income tax return, and we can help you report it.

Source: City of Oshawa: short term rentals (opens in a new tab)

Business licensing in Oshawa under By-law 122-2024

Oshawa's Business Licensing By-law 122-2024 took effect on November 4, 2024. The City licenses classes that include food shops, vehicle establishments, tattoo parlours, smoke, tobacco and vapour product shops, driving education, payday loan establishments, pet stores, special events and vehicles for hire. Auctioneers, billiard halls, bowling alleys, places of amusement and theatres are no longer licensed, and the earlier exemptions for food shop and peddler licences ended. A business that runs more than one regulated class at the same location under the same operator can hold one primary licence with additional endorsements. We can help you work out what applies to your business.

Source: City of Oshawa: business licences and permits (opens in a new tab)

Tax and accounting services for Oshawa

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

See all our services

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

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Book a free consultation about your Oshawa return or business

Tell us a little about your situation. An accountant will read your request and get back to you, with no obligation.

  • Online, by phone or in person: you choose
  • Personal, self-employed and corporate returns
  • No sensitive information asked on this form

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Oshawa tax questions

Yes. Oshawa clients can upload 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.

The City charges a 1.25% penalty on overdue taxes on the first business day of each month they remain unpaid, then adds interest on the first business day of each later month. The City says these charges cannot be waived unless it made an error.

Yes. Operators must hold a City licence, rent only from their principal residence, keep stays under 28 consecutive days and 180 days a year, carry the required liability insurance and name a local contact who can attend within one hour.

Many do. By-law 122-2024 covers food shops, vehicle establishments, tattoo parlours, smoke, tobacco and vapour shops, driving schools and other classes, while billiard halls, bowling alleys, theatres and auctioneers are no longer licensed. Email the City's licensing team to confirm your class.

No. The closest of our offices is the Eglinton Branch at 3238 Eglinton Avenue East in Scarborough. Many Oshawa clients file online and never need to travel.

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