Trim Tax

Tax Accountants Serving Markham

Markham is one of Canada's largest technology hubs, home to software companies, hardware and electronics firms, start-ups and a large community of incorporated professionals. Many of these businesses carry out work that may qualify for the Scientific Research and Experimental Development (SR&ED) program, one of the most valuable tax incentives available to Canadian-controlled private corporations, but claims are often missed or under-documented.

Founders also need advice on incorporation, share structure and paying themselves, while professional corporations need a yearly plan for salary, dividends and retained earnings. Trim Tax serves Markham clients in person at our Vaughan office and virtually through our secure portal, e-signature and video meetings. We identify eligible SR&ED work, prepare T661 claims and defend them through CRA review, and we keep the underlying corporate tax, bookkeeping and HST in order so your claim stands on clean records. Every engagement starts with a free consultation and a fixed fee quoted in writing.

Services most requested in Markham: SR&ED tax credit claims, corporate tax for technology companies and professional corporations, business advisory and incorporation, bookkeeping and GST/HST.

Services for Markham residents and businesses

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Why Markham clients choose Trim Tax

  • Meet at our Vaughan office or work with us entirely online
  • Familiarity with technology companies, SR&ED claimants and professional corporations
  • A professional response within one business day

Local FAQs

No. Most Markham clients work with us online, and in-person meetings are available at our Vaughan office by appointment.
It may, if your work tried to resolve technological uncertainty through systematic investigation. We review your projects in a free consultation and tell you honestly whether a claim is likely to qualify.
Yes. We prepare compilation financial statements, the T2 return and slips, and meet with you to plan the year ahead.
Yes. We prepare the technical and financial support, respond to the reviewer and attend meetings with you so your claim is defended on the record.

Book a free consultation with a Trim Tax accountant serving Markham — call 647 243-5076.

Office: 400 Applewood Cres., Suite 100, Vaughan, ON L4K 0C3
Hours: Monday to Friday, 9:00 am to 6:00 pm ET

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      © 2026 Trim Tax. All rights reserved.

      Trim Tax is an independent accounting firm and is not affiliated with the Canada Revenue Agency or any government agency. Information on this website is general in nature and does not constitute professional advice. Outcomes depend on individual circumstances.