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Newmarket accountants and remote tax filing

Tax Accountant in Newmarket: File Your Taxes Online

Newmarket 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 Newmarket; you can meet us at our Eglinton Branch on Eglinton Avenue East in Scarborough if you prefer. The Town of Newmarket licenses short-term rentals and has required second suites to be registered since 2013, so this page sets out what to know.

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

Newmarket's Old Town Hall with its clock tower, seen across the square on a summer day NewmarketOld Town Hall, Newmarket
Photo: Kelisi at English Wikipedia via Wikimedia Commons, CC BY-SA 3.0, resized

File your taxes online from Newmarket

From Main Street to the newer neighbourhoods, 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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Newmarket Property Tax, Short-Term Rental Licence and Second Suite Registration

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

Newmarket property tax: three interim and three final instalments

Newmarket's 2026 interim bill had three instalments, due February 25, March 25 and April 27, and the final bill three more, due July 24, August 25 and September 25. The Town says its property tax is divided between the Town, York Region and the school boards. If MPAC sends a supplementary or omitted assessment notice, you receive a property tax bill in late fall. The Town offers a number of payment options, which its payment page explains. Follow the dates on your bill.

Source: Town of Newmarket: property taxes (opens in a new tab)

Short-term rentals in Newmarket need a licence, with firm limits

Short-term rental operators and rental platforms such as Airbnb need a Town licence under the Business Licence By-law. Only one short-term rental is allowed per lot, within one dwelling unit, and an operator may rent no more than three bedrooms or host more than six overnight guests. Only the bedrooms named on the application may be rented, and vehicles, tents and accessory buildings may not. You need one off-street parking space for each rented bedroom plus one for the permanent resident, and you must show your licence number in all your advertising. Rental income belongs on your income tax return.

Source: Town of Newmarket: short-term rental operator or company (opens in a new tab)

Second suites in Newmarket must be registered, and get an N plate

Since 2013, homes with an additional residential unit must be registered with the Town under By-law 2013-13, as amended. You submit the application form with either the Fire Department and Electrical Safety Authority documents or a final building permit inspection report. A registered unit receives a small "N" plate for the home and a "B" in its address, and a household with an N plate may put out six garbage and recycling bags instead of three. If you rent the unit, the income belongs on your tax return, and we can help you report it.

Source: Town of Newmarket: additional residential unit (opens in a new tab)

Tax and accounting services for Newmarket

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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Book a free consultation about your Newmarket return or business

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

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Newmarket tax questions

Yes. Newmarket 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 the interim instalments were due February 25, March 25 and April 27, and the final instalments July 24, August 25 and September 25. Follow the dates on your bill.

Yes. Operators need a Town licence, may run only one short-term rental per lot, and may rent up to three bedrooms for up to six overnight guests. You must also provide the required off-street parking and show your licence number in your advertising.

It depends on the type. The Town licenses personal wellness establishments, pet stores, second-hand goods dealers, mobile businesses, outdoor serving areas and short-term rentals, among others. Licences are issued annually and must be renewed by January 1.

No. You can meet us at our Eglinton Branch, 3238 Eglinton Avenue East in Scarborough. Many Newmarket clients file online and never need to travel.

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