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
- Personal Tax & Self-Employed
- Corporate & Small Business Tax
- Bookkeeping & Financial Statements
- GST/HST & Sales Tax
- Payroll & T4/T4A
- Estate, Trust & Final Returns
- Business Advisory & Incorporation
- SR&ED Tax Credits
- Cross-Border & Non-Resident Tax
- Real Estate & Rental Property Tax
- Non-Profit & Charity Accounting
- CRA Audit & Tax Resolution
- Personal Tax Audit
- HST Audit
- Corporate Tax Audit
- Self-Employed Audit
- Haven't Filed in Years?


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