Welcome to BottomLine Accounting Services
BottomLine Accounting Services works with you to fulfill all your accounting, tax, and payroll needs, start to finish.
No two people and no two businesses are the same. We believe in unique one-on-one dedicated solutions for each of our clients and strive to offer excellent customer service.

Making Accounting Simple — So You Can Focus on What Matters.
Our philosophy is to be in a partnership with our clients. We help you set realistic goals and meet them in order to be financially successful. No need to stress over unknown accounting and tax requirements. You can concentrate on your expertise and we will take care of the rest.
We believe in taking our clients from start to finish. We offer comprehensive packages that will take care of all your needs. We work with you to create custom, personalized, and flexible solutions. No job is too small or too big!
Your Numbers. Our Expertise.
BottomLine Accounting Services operates at three convenient locations: Oakville, Burlington, and Waterdown.
CRA My Business Account Notice!
CRA My Account Notice Click Here to find out what changes the CRA has made to CRA my Account for Individuals .
Starting spring 2025, the CRA will transition to online mail as the default method of delivering most business correspondence. This means you’ll start receiving most of your business notices and other correspondence through My Business Account instead of in the mail.
Visit: CRA My Business Account by Clicking this link
Be sure to select Option 2 – Using a CRA user ID and Password