3000 Danforth Ave, Suite 101, Toronto, ON • Open Daily: 9:00 AM – 10:30 PM • CRA Authorized
(437) 421-7171 • Toll-Free: +1 (800) 666-8138 • info@liratax.ca
Book consultation
Book consultation
Markham accountants and remote tax filing

Tax Accountant in Markham: File Your Taxes Online

Markham residents and businesses 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 Markham; the closest is our Eglinton Branch on Eglinton Avenue East in Scarborough, if you want to meet in person. The City of Markham licenses businesses, registers two-unit houses and bills property tax in its own way, so this page sets out what to expect.

Start remote tax filing Book a free consultation

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

The domed Markham Civic Centre beside its pond on a sunny day MarkhamMarkham Civic Centre
Photo: Raysonho via Wikimedia Commons, CC0 1.0, resized

File your taxes online from Markham

Markham clients do not need to travel to file. Send your slips 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.

Start remote tax filing See in-person location

Markham Property Tax, Business Licences and Second Suite Registration

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

Markham property tax: two summer instalments for homes

Markham issues an interim tax bill in early January equal to 50% of the previous year's taxes. In 2026 the residential final instalments were due July 6 and August 5, and the commercial and industrial ones October 5 and November 5. The City's pre-authorized plans offer four, six or eleven instalments for homes. A 1% penalty is added to an unpaid instalment, plus interest of 1.25% per month until the taxes are paid. The dates change each year, so follow your bill.

Source: City of Markham: about your tax bill (opens in a new tab)

Business licences in Markham

Markham licenses stationary businesses under By-law 2018-90, including food premises, tobacco and vape sales, and personal services such as hair, nail, aesthetics, tattoo and piercing. Vehicle-based businesses such as taxis, driving schools and refreshment vehicles are licensed under By-law 2022-20, and driveway and landscape contractors must renew every year by March 31. The Business Licensing counter is at the Markham Civic Centre, 101 Town Centre Boulevard, and walk-ins are not accepted for applications. If your business is not on the City's list, email LicensingFC@Markham.ca.

Source: City of Markham: business licence (opens in a new tab)

Second suites in Markham must be registered

Markham requires every two-unit house to be registered with the City. A new second suite needs a building permit and must meet the Ontario Building Code, and the owner then arranges a fire inspection and registration with Markham Fire and Emergency Services. Under Bill 23, up to three units are now permitted on urban residential lots. If a suite was built before July 1, 1993, the owner submits a Two-Unit House Declaration Form. Rental income must be reported on your return, and we can help you with it.

Source: City of Markham: registering basement apartments and second suites (opens in a new tab)

Tax and accounting services for Markham

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.

Free consultation

Book a free consultation about your Markham 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

Prefer to call? +1 (800) 666-8138

Free consultation

Send us a few details

Secure & private • no obligation

Markham tax questions

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

Yes. Markham requires every two-unit house to be registered with the City. You need a building permit for a new suite, then a fire inspection and registration through Markham Fire and Emergency Services. Suites built before July 1, 1993 also need a Two-Unit House Declaration Form.

The interim bill is issued in early January at 50% of the previous year's taxes. In 2026 the residential final instalments were due July 6 and August 5, and the commercial and industrial ones October 5 and November 5. Late instalments get a 1% penalty plus 1.25% interest a month.

Many do. Markham licenses stationary businesses such as food premises, tobacco and vape sales and personal services, and vehicle-based businesses such as taxis, driving schools and refreshment vehicles. If yours is not on the City's list, email LicensingFC@Markham.ca.

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

Ready to file your Markham return?

Start online in a few minutes, or talk to an accountant first. No obligation.

Start remote tax filing Book a free consultation
Also serving StouffvilleScarboroughRichmond Hill All service areas