Trades accountant in Ottawa
An Ottawa trades company can take a job fifteen minutes away and land in a different tax, workplace-coverage and licensing regime. EverStone is a CPA for incorporated contractors and an Ottawa small-business accountant.
Quick answer: Trades companies based in Ottawa, Ontario routinely perform work on both sides of the provincial boundary, which changes which sales tax applies, which workplace-coverage system governs and how corporate income is allocated. EverStone prepares the corporate return, sales tax filings and subtrade slips for those files, entirely remotely. Published fees start at $325 a month for bookkeeping and $125 for a personal return.
The year-end covers the T2 with Schedule 1 and Schedule 50, the CCA schedule, the small business deduction, T4 or T5 slips for the owner’s pay, and the instalments for the year ahead.
A bookkeeper for tradespeople in Ottawa has to keep Ontario and Quebec work apart in the ledger; that is built into the file from the first month.
On this page
- Real property is taxed where the property is
- One tax on one side, two on the other
- Coverage does not cross the bridge with the crew
- Where the income is earned, and who taxes it
- Subtrade slips and the holdback layer
- What is covered
- Remote, and there is no Ottawa office
- What a trades business has to get right
- Ottawa trades accounting FAQ
Real property is taxed where the property is
For most services, sales tax follows the customer’s address; for work on real property, it follows the location of the property. So an Ottawa trades company cannot set its rate from its own registration. A deck in Orleans and one across the river are different supplies, even with the same crew, truck and customer. Charging the home-province rate on everything produces invoices wrong in one direction and unrecoverable in the other. The place of supply rules set out how it is decided.
One tax on one side, two on the other
Ontario uses a single harmonized tax. Quebec runs its own provincial sales tax alongside the federal one, with its own registration. For an Ottawa contractor that can mean not just a different percentage but a second registration, filing calendar and set of returns with unrelated deadlines.
Set up in advance, it is manageable. Found after a year of cross-river work billed wrongly, it is a real problem, because the uncharged tax is still owed.
Coverage does not cross the bridge with the crew
Ontario requires construction business owners to have workplace insurance: independent operators, sole proprietors, partners and executive officers generally must register, with limited exceptions such as home renovation done directly for a homeowner. Quebec runs its own system. A crew working both sides may be in two regimes, and the gap comes from assuming coverage follows the company, not the worksite.
Where the income is earned, and who taxes it
A corporation with a permanent establishment in more than one province must allocate taxable income among them, which changes which government collects and can change the total. One job across the river usually will not create one; a yard, leased storage compound, long-term site office or continuous work might. The question has an answer, better settled deliberately than on assessment. Federal and institutional work in the National Capital Region often produces exactly the long, single-site engagements where this matters.
It is one of the questions an accountant for construction contractors in Ottawa settles before the T2 is prepared, not after.
Subtrade slips and the holdback layer
The federal T5018 requirement applies regardless of province, and Ontario’s construction legislation adds statutory holdback and prompt payment obligations on Ontario projects. Both need payables that separate subtrade labour from materials and holdbacks tracked on a schedule. Cross-boundary work only strengthens the case. See the T5018 reporting guide.
What is covered
One Chartered Professional Accountant handles the whole file:
- Place-of-supply review on cross-boundary contracts
- Sales tax registration, filing and reconciliation
- Income allocation where a permanent establishment exists in more than one province
- T5018 information returns and subtrade classification
- Holdback schedules and progress billing cut-off
- T2 corporate return and year-end financial statements
Remote, and there is no Ottawa office
EverStone has no Ottawa location; engagements run online by video, e-signature and secure upload. See accounting for Ontario businesses.
Prepared and reviewed by a CPA at EverStone CPA, serving businesses in BC, Alberta, Ontario and Manitoba. Updated . About the firm · Send an enquiry
What a trades business has to get right
| Item | Why it matters |
|---|---|
| Subcontractor payments | Construction payers report subcontractor payments to the CRA on a T5018 |
| Holdbacks | Amounts held back under a construction contract are recognized on their own timing, not when invoiced |
| Tools and equipment | Larger purchases are capitalized and depreciated rather than expensed in full |
| Vehicle use | A log separating business from personal kilometres is what supports the claim |
| Sales tax where you operate | 13% HST, a single registration and a single return |
Source: Construction and trades accounting. General information, not advice.
Ottawa trades accounting FAQ
Which sales tax applies to a job across the river?+
Does an Ottawa contractor need a second sales tax registration?+
Does workplace coverage follow the company or the worksite?+
When does a cross-boundary job affect where tax is paid?+
Do T5018 slips apply to Ottawa construction businesses?+
Is there an EverStone office in Ottawa?+
What does an accountant cost for an Ottawa trades business?+
Related services and local guides
Nearby cities, the rest of what we do for Ottawa businesses, and the reference pages behind this one.
Starting fees
Every fee is fixed in writing before any work begins.
- Monthly bookkeeping, HST filing includedfrom $325 a month
- Payroll, remittances, T4s and ROEsincluded in monthly bookkeeping
- Books, payroll and the year-end T2 together$500–$700 a month
- Corporate year-end and T2 returnfixed fee, quoted in writing
- Personal tax return (T1)from $125; self-employed or rental $275–$500
- Catch-up bookkeepingfrom $2,200 per year of records
- Controller or CFO supportcontroller from $1,650, CFO from $2,750 a month
- One-off advice call with a CPA$225 plus GST