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Tree service cross-border tax: US equipment, US conferences, US storm work
For most Ontario tree companies, the border shows up three ways: a used bucket truck or chipper bought from a US dealer or auction, a trip to an ISA or TCI Expo event, and, for a few, a crew sent south after a hurricane. None of these makes you a US taxpayer by default, but each carries paperwork that is cheap to get right in advance and expensive to reconstruct.
By the AnalytIQ Accounting team · Last reviewed: August 12, 2026
Buying a bucket truck or chipper in the US
US auctions and dealers move more used forestry bucket trucks and chippers than the Canadian market does, and the prices tempt every growing tree company. The purchase works, but it is four transactions, not one: the sale, the export from the US, the import into Canada, and the paperwork that lets you claim the tax you paid.
- Exporting a vehicle from the US requires advance notice to US Customs and Border Protection with the title — 72 hours is the standard window — and the auctionâs paperwork rarely does this for you.
- Importing a vehicle into Canada runs through the Registrar of Imported Vehicles for admissible vehicles, with the five percent GST collected by CBSA on the Canadian-dollar value at the border and Ontarioâs eight percent dealt with at registration, which a registrant then recovers through input tax credits. Heavy and specialized trucks have their own admissibility rules, so we confirm the unit is admissible before you bid, not after.
- Chippers and stump grinders are not vehicles, so there is no RIV step, but duty depends on origin. A US-built unit with a CUSMA certification of origin generally enters duty-free; the surtax picture between Canada and the US has changed more than once since early 2025, so we check the current treatment on the day you bid.
- Getting the GST back requires the CBSA accounting document in the corporationâs name under its own import account; a truck cleared under a transport companyâs or a friendâs account is a credit you cannot claim.
The purchase price, the brokerâs fee, duty and freight all land in the assetâs capital cost in Canadian dollars at the exchange rate on the transaction date, which is why USD transactions in Canadian books deserve their own handling rather than a bank-feed guess.
ISA conferences, TCI Expo and certification travel
An ISA Annual Conference or TCI Expo held in the US is deductible on the same footing as a Canadian event. The Income Tax Act allows two conventions a year, provided the organizationâs territorial scope covers the location — which an international societyâs does — and the trip has to be a convention, not a week in Florida with a lecture attached. Meals are half-deductible, and when the registration fee includes food without stating a price, fifty dollars a day is treated as the meal portion. Continuing education units, exam fees and recertification costs are ordinary training expenses in either country. Keep the agenda with the receipts; the CRA reads them.
Sending a crew to US storm work
A few Ontario companies deploy crews after a hurricane, usually as subcontractors to a US prime. Before tax comes immigration: whether your crew can lawfully do hands-on work in the US on that engagement is a question for an immigration lawyer, and we flag it rather than answer it. Once that is settled, the tax side has a US half and a Canadian half.
| Item | US side | Canadian side |
|---|---|---|
| Corporate income | No US federal tax under the treatyâs business-profits article unless the company has a permanent establishment; a services PE can arise at 183 days in any twelve-month period. A W-8BEN-E claiming treaty benefits stops the prime from withholding 30 percent; a protective Form 1120-F with Form 8833 preserves the position. | Revenue is Canadian taxable income as usual. Any state tax paid becomes a foreign tax credit question, not a deduction by default. |
| State tax and registration | States are not bound by the treaty; some tax income earned in-state from day one, and some require contractor registration or a licence before the work. Several states also apply sales tax to tree and landscaping services. | Nothing, beyond the credit claim. |
| Employees' wages | Exempt from US federal tax under the treaty when the crew is in the US under 183 days and paid by the Canadian company with no US PE; state withholding rules can differ. | CPP, EI and source deductions continue. A certificate of coverage under the Canada-US social security agreement keeps the crew out of US Social Security. |
| Meals and lodging on deployment | Not a US tax matter for the company. | Board and lodging at a special work site is non-taxable to employees who complete Form TD4; reasonable meal allowances for the days away are likewise not a benefit. |
| Trucks and equipment | A USDOT number for commercial vehicles crossing for interstate work; IFTA and IRP or trip permits once a truck passes the qualified-vehicle weight; temporary entry for equipment is a customs question. | Fuel tax reported through IFTA where it applies; nothing else changes. |
The filings are inexpensive when they are planned. What costs money is a prime contractor that withheld 30 percent because no W-8BEN-E was on file, or a state notice eighteen months later for a licence nobody knew about. Our answer on the protective Form 1120-F explains why we file one even when no US tax is owed. We line all of this up before the trucks leave.
Two questions we get less often
If you or a partner is a US citizen, owning a Canadian tree company creates US information filings on the corporation itself, and our dual-citizen tax guide explains why that matters. And if a US storm contract turns into a season-long presence, the permanent establishment clock is running; at that point the question is no longer paperwork but whether a US entity is warranted, and we would rather have that conversation at day sixty than day two hundred.
The rest of this series covers the domestic side: our payroll page for tree services handles WSIB, overtime and seasonal layoffs at home. For the full two-country toolkit, see cross-border tax services.
Sources: IRS — About Form 1120-F; CRA — Form TD4, Declaration of Exemption, Employment at a Special Work Site.
Common questions.
Do I owe US tax if my crew does two weeks of hurricane cleanup as a subcontractor?
Usually no US federal income tax, because a short deployment does not create a permanent establishment under the treaty. You still need a W-8BEN-E on file with the prime to avoid 30 percent withholding, a protective 1120-F after year-end, and a check of the state involved, which may tax or license the work regardless.
Can I claim the GST I paid on a bucket truck imported from a US auction?
Yes, as an input tax credit, provided the CBSA accounting document is in your corporation’s name under its own import account. Clearing it under someone else’s account leaves you with tax you cannot recover.
Is an ISA conference in the US deductible?
Yes, within the two-conventions-a-year limit, since an international societyâs territorial scope covers a US location. Meals are half-deductible, and a fifty-dollar daily meal portion applies when the fee includes food without pricing it separately.
Related reading
Paperwork lined up before the trucks leave.
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