Who We Help · Farming · Cross-Border Tax
Cross-border farm tax: selling south is easy, owning south is not
Selling grain or cattle into the US is the easy half of cross-border farming: payments for goods face no US withholding, exports are zero-rated for GST/HST, and the treaty keeps the profit taxable in Canada. The hard half is what you own and haul: US farmland drags your estate into US estate tax and its sale into FIRPTA withholding, and every machine that crosses the border is a customs entry where origin decides the cost. Here is the whole file, from the elevator to the auction yard.
By the AnalytIQ Accounting team · Last reviewed: August 12, 2026
Selling south is the easy part
Payments for goods do not trigger US withholding. When an Ontario farm delivers canola to a US elevator or ships cattle to a US packer, the buyer pays the invoice in full — the withholding rules that complicate cross-border services and royalties do not reach commodity sales. On the Canadian side the sale is a zero-rated export for GST/HST: no tax on the invoice, and your input tax credits on fuel, fertilizer and repairs stay intact.
US income tax rarely enters the picture either. Under the treaty's business-profits article, a Canadian farm pays US federal income tax only if it operates through a US permanent establishment, and selling through brokers, delivering to elevators or bidding at US livestock auctions does not create one. A US warehouse or marketing office might — that is when a protective US filing becomes worth discussing. One planning nuance travels with the load: the deferred cash purchase ticket rules are built around deliveries of listed grains to licensed elevators, so income timing on US deliveries has to be managed through contract dates instead.
Origin paperwork turned into margin in 2025
Crops grown and harvested in Canada, and livestock born and raised here, are wholly obtained under CUSMA — they qualify as originating automatically. Qualifying and proving it are different jobs: preferential treatment runs on a certification of origin, a nine-data-element statement that can sit right on the invoice, and since the 2025 tariff rounds the treatment of Canadian goods at the US border has largely turned on whether that certification exists. For straight commodities the analysis is trivial. For anything processed — cleaned seed with imported inputs, blended or packaged products — the rules of origin deserve a real look before anyone signs the certification.
US farmland: the deed comes with an estate tax
US farmland is US-situs property, which puts it inside the US estate tax no matter where the owner lives. The statutory exemption for non-resident non-citizens is a token US$60,000; what saves most Canadian farm families is the treaty, which prorates the full US exemption — US$15 million per person from 2026 — by the share of the worldwide estate sitting in the US. A farmer whose Michigan quarter-section is a modest slice of a larger estate usually owes nothing, but the estate must still file Form 706-NA to claim the treaty relief. Joint ownership and holding entities change the arithmetic, so the structuring conversation belongs before the purchase, not in the executor's office.
Rent it, sell it, leave it: the lifecycle in one table
Each stage of owning US farmland pairs a US filing with a Canadian mirror. The sale is where the cash surprise lives: FIRPTA makes the buyer withhold 15 percent of the gross price — not the gain — unless the IRS approves a Form 8288-B withholding certificate around closing.
| Event | US side | Canadian side |
|---|---|---|
| Cash-rent the land | 30 percent withholding on gross rent, unless a net-income election is made and a US return reports the rent | Rent reported here too, with a foreign tax credit for US tax paid |
| Sell the land | FIRPTA: 15 percent of gross withheld; Form 8288-B can cut it; a US return reports the actual gain | Gain computed in CAD from your adjusted cost base — currency movement often adds a second gain |
| Die owning the land | Estate tax on the land's value; Form 706-NA claims the treaty's prorated exemption | Deemed disposition at death; the treaty coordinates credits between the two |
Because Canada measures the gain in Canadian dollars, a flat US land price can still produce a taxable gain here purely from exchange rates. We track the adjusted cost base in both currencies from the day of purchase so the eventual sale is arithmetic, not archaeology.
Equipment imports: big iron is cheaper at the border than you think
Most of the big-ticket machinery crosses GST-free. Prescribed farm equipment — farm tractors rated above 44.74 kW, combines, air seeders and similar — is zero-rated, so no 5 percent GST is collected on entry; other goods pay the 5 percent, which a GST-registered farm recovers as input tax credits. Duty follows origin: most North American-built machinery qualifies under CUSMA and enters free, but a used combine bought at a Montana auction takes its origin from the manufacturer, not the auction yard. Get the origin documented before the hauler leaves.
Two housekeeping points make the paperwork hold up: the farm (or its corporation) should be the importer of record on the entry, and broker statements should reconcile to the credits claimed on the GST return. The domestic side of the file — cash basis, AgriStability, the capital gains exemption on qualified farm property — lives with our farm tax services, and the full treaty toolkit sits at cross-border tax services.
Source: IRS — FIRPTA Withholding of Tax on Dispositions of US Real Property Interests.
Common questions.
Do US buyers withhold tax when we sell them grain or cattle?
No. US withholding rules target services, rents and royalties — payments for goods are not withheld on. And without a US permanent establishment, the treaty keeps the profit taxable only in Canada.
We own farmland in the US. Is it really exposed to US estate tax?
Yes — US real property sits in the US estate tax net regardless of where you live. The treaty prorates the full US exemption by the US share of your worldwide estate, which eliminates tax for most families, but Form 706-NA must still be filed to claim it.
What happens to the money when we sell US farmland?
The buyer withholds 15 percent of the gross price under FIRPTA unless the IRS approves a Form 8288-B certificate. You then file a US return reporting the actual gain, recover any excess withholding, and report the gain in Canada with a foreign tax credit.
Related reading
The border handled between harvests.
Book a consultation and get a plain answer on exactly what applies to you.