Tax, Accounting & Consulting by a Certified CPA

Your business’ accounting partner in growth

Who We Are

 We’re a small independent CPA firm based in Ottawa, Canada that works closely with you to reach your business and personal accounting needs.

We help you take the stress out of taxes and offer dependable reporting and sound advice.

How We Can Help

Sole Proprietors

We help self employed individuals, professionals and other sole proprietors with:

  • Compiling your self employment income and expense reporting for taxes
  • Setting up new businesses and assistance with registering business accounts
  • Deciding when the right time to incorporate might be


We work with a variety of corporate clients to keep your filing obligations under control and provide you with dependable financial reports to track your performance:

  • Preparing annual financial statements and corporate tax returns
  • Helping owners determine when and how to pay themselves
  • Planning for major transactions including acquisitions, new partners and sales of the business

Are your personal taxes becoming a bit more demanding this year? We’re happy to chat with you if your tax situation is more complicated including:

  • Helping owners of rental properties and AirBNB proprietors claim all their related income and expenses
  • Assisting with claiming a disability tax credit for the first time
  • Claiming expenses for employees with work-from-home arrangements and employees who use their own vehicles for work
  • Filing for elderly parents with complex medical expenses and helping you recover credits for expenses you pay on behalf of your parents

Specialty Services


Virtual CFO Services

Need help throughout the year? We can work with you at any time of the year, from supporting your accounting team’s function during transitions, to year-end reconciliations or bringing us on as your company’s Virtual CFO.


Estate Taxes

Are you the executor of a recently deceased family member or friend? Estate tax returns are a complex process and having the right help guide you through it is valuable. We sit down with you to review what the estate needs to do to meet its final filing obligations and help you determine what your responsibilities as the executor are. We are also available to help deal with CRA where there are any inquires or audits of the estate.


About Us

Kowalski CPA was founded by Mark Kowalski and has been trusted by clients since 2017 to identify and file tax needs, help manage internal accounting functions and assist with operational and tax planning for businesses.

Quick Resources

Expenses Tracker

Record your expenses with our ready-to-use Excel spreadsheet

Home Office Tax Credit

Are you eligible for the home office tax credit for 2020?

Rental income worksheet

Keep track of AirBnb and rental income and expenses

Say Hello

Reach out today to see how we can help you and your business with your tax and accounting needs.