An Ottawa firm that likes a quiet April
Eight Locks works on a simple idea: if the books are kept every month, tax season stops being a crisis. We work with small businesses and families across Ottawa — from Orléans to Kanata, Barrhaven to the ByWard Market.
Our name comes from the flight of eight locks beside Parliament Hill, where the Rideau Canal meets the Ottawa River. Boats rise 24 metres there, one patient step at a time. It's how we think about getting a business's finances in order.

How we work
Four promises
- 1
Fixed fees, agreed first
Your engagement letter lists the price and the work. If something new comes up, we quote it before we start.
- 2
Early, not on time
Our internal deadline is two weeks before the CRA's. Tax season is busy; your file shouldn't be.
- 3
Plain language
We explain what a number means for your decisions, not just what it is.
- 4
Local and bilingual
An Ottawa office with service in English and French, and video meetings for clients anywhere in Ontario.
Our team
One small team on your file
The same small team handles your books, payroll and returns through the year, so you don't have to explain your business twice. We don't perform audits or review engagements.

The office
Our Ottawa office
1551 Michael StreetOttawa, ON K1B 3T4
Call +1 613-657-4498 to book an in-person appointment.
| Sunday | Closed |
|---|---|
| Monday | 9:00 a.m. – 5:00 p.m. |
| Tuesday | 9:00 a.m. – 5:00 p.m. |
| Wednesday | 9:00 a.m. – 5:00 p.m. |
| Thursday | 9:00 a.m. – 7:00 p.m. |
| Friday | 9:00 a.m. – 4:00 p.m. |
| Saturday | 10:00 a.m. – 2:00 p.m. (March–April only) |