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Cross-Border Tax (U.S.–Canada)

A US Person as Trustee of a Canadian Trust: How One Appointment Can Move the Trust's Residence — or Make It American

Reviewed by the Fairlight Accounting cross-border tax team — U.S. & Canadian Tax Desks

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Trusts are resident somewhere, and both countries decide where by looking at who actually runs them. Canada's test, settled by the Supreme Court in Fundy Settlement, is central management and control: a trust resides where its real decisions are made — which is usually, but not necessarily, where the trustees are. The US test is mechanical: a trust is domestic only if a US court can exercise primary supervision over its administration (the court test) and US persons control all substantial decisions (the control test); fail either and it is a foreign trust. Put a US-resident trustee into a Canadian family trust and both tests start moving. If the US trustee comes to dominate decisions — sole trustee, or the one who actually decides — central management and control migrates, and a trust that ceases to be Canadian-resident is deemed to dispose of its property on the way out: a departure tax at trust level, at top rates, on every accrued gain. Meanwhile the US analysis usually keeps the trust foreign (the court test is rarely met by accident), but the US trustee personally acquires US reporting duties, and if US persons ever control all substantial decisions under a US-administered deed, the trust can flip domestic — a different regime entirely, with its own entry consequences.

Key takeaways

  • Canada (Fundy Settlement): residence follows central management and control in fact — trustee meetings, who evaluates and decides on investments and distributions, where the substance happens. A majority of Canadian trustees does not protect a trust actually run from Florida.
  • Emigration of a trust: ceasing Canadian residence triggers a deemed disposition of trust property at fair market value — the trust-level departure tax — plus potential ongoing non-resident trust rules for Canadian beneficiaries.
  • US (court + control): foreign unless a US court has primary supervision and US persons control all substantial decisions (distributions, investments, trustee changes, amendments). A single non-US person with veto over any substantial decision keeps a trust foreign; conversely, careless drafting plus a US situs of administration can make it domestic.
  • The US trustee's personal position: a US-person trustee of a foreign trust has signature authority over the trust's non-US accounts (FBAR), may be responsible for causing the trust's US filings where it has them, and sits in the middle of every 3520/3520-A question its US beneficiaries or grantors have.
  • Practical appointment rules: keep a Canadian majority that genuinely decides and documents it; give the US family member a consultative role or a protectorship without substantial-decision control; hold meetings, minutes, and advisor relationships in Canada; and revisit on every trustee's move.
  • If migration has already happened in fact, the exposure exists whether or not anyone filed for it — the repair is a facts-based residence analysis, then either restoring Canadian management or dealing with the deemed disposition deliberately.

The quiet migration

Trusts rarely migrate by resolution; they migrate by attrition. The Canadian parents who settled the trust age out of decisions; the Toronto trustee defers to the Chicago daughter who "is good with money"; the investment account moves to her advisor; two trustees sign what one trustee decides. Three years later the trust's central management and control is in Illinois on any honest reading of the facts, and the deemed disposition happened back when the pattern set in — with interest running. Residence hygiene is cheap: real meetings in Canada, real Canadian decision-makers, and a file that shows it.

Worked example

A BC family trust holds $2.5 million of investments and the family cabin ($400,000 of accrued gains overall). Trustees: mother in Kelowna, son in Seattle (a US citizen), daughter in Vancouver. The mother wants to retire as trustee and "let the kids handle it," which in practice means the Seattle son. As proposed: decisions would sit with a US-resident trustee — central management and control at risk of moving, a trust-level deemed disposition of $400,000 of gains at top rates if it does, and the trust would still be foreign for US purposes (no US court supervision), so nothing is gained on the US side; the son would add FBAR signature filings; and distributions to his own US-person kids would put Form 3520 traffic through a trust now awkwardly straddling both countries. As restructured: the daughter and a Vancouver trust company become the deciding trustees, the deed gives the son a protectorship with consent rights that stop short of the US control test's substantial decisions, meetings and minutes stay in BC, and the trust remains Canadian-resident and US-foreign — the same family involvement, none of the migration.

Official sources

"The residence of a trust should be determined by the principle that a trust resides for the purposes of the Act where its real business is carried on, which is where the central management and control of the trust actually takes place." — Supreme Court of Canada, Fundy Settlement v. Canada, 2012 SCC 14, [2012] 1 S.C.R. 520, https://decisions.scc-csc.ca/scc-csc/scc-csc/en/item/8001/index.do

The IRS explains the reporting obligations attached to foreign trusts: a US owner of a foreign trust ensures the trust files Form 3520-A, US persons report transfers to and distributions from foreign trusts on Form 3520, and distributions of accumulated income to US beneficiaries can be subject to the accumulation distribution (throwback) rules with an interest charge. — Internal Revenue Service, Foreign trust reporting requirements and tax consequences, https://www.irs.gov/businesses/international-businesses/foreign-trust-reporting-requirements-and-tax-consequences

Practitioner note

Trustee appointments are made for family reasons and reviewed, if ever, for tax reasons — usually after the move. The two tests reward opposite instincts: Canada cares who really decides, the US cares who formally controls, and the safe appointment satisfies both by keeping real decision-making Canadian and drafting the American's role below the control threshold. We put a residence-facts memo in every trust file with a cross-border trustee, dated, so the next review has a baseline.

See also: For the throwback tax and Form 3520 for a US beneficiary of a Canadian trust, see the throwback tax and Form 3520 for a US beneficiary of a Canadian trust; and browse every cross-border tax topic guide, organized by situation.

Next step

Fairlight prepares the trust residence analysis under both countries' tests, the trustee and deed restructuring to hold it, and the repair plan where migration has already occurred. See cross-border pricing or book a call.

Cross-border taxes, handled in one place

U.S. and Canadian filings prepared together by our U.S. and Canadian Tax Desks.

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