Cross-Border Estate and Inheritance Tax Case Studies
6 worked Cross-Border Estate and Inheritance Tax case studies — the position a client typically comes to us with, what we do, and what it is worth. Each is an illustrative example built on the rules that apply to cross-border estate and inheritance tax work, not a specific client's file.
Case Study 1 · Records and systems rebuilt
Month-End Close Cut From 12 Weeks To 9 Days — US LLC Shareholder, Ottawa
Client: A shareholder of a US LLC · Where: Ottawa, Ontario · Engagement: 5 weeks, fixed fee
Close time before12 weeks
Close time after9 days
Year-endReview, not rebuild
The situation — A shareholder of a US LLC, Ottawa, Ontario
The accounting file at a shareholder of a US LLC in Ottawa, Ontario was built on a departure year filed as a normal resident return with no deemed disposition reported. The year-end had taken 12 weeks each of the last three years.
What we did for A shareholder of a US LLC, Ottawa, Ontario
We reported the deemed disposition properly on the departure return and claimed the foreign tax credits that had been left unused and moved the reconciliations into the monthly cycle, so the year-end stopped being a rebuild.
The result — A shareholder of a US LLC, Ottawa, Ontario
The file reconciles. Month-end closes in 9 days instead of 12 weeks, and the year-end is a review rather than a reconstruction.
Case Study 2 · Objection and relief
Notice Of Objection Allowed In Full, $107,000 Reversed — Cross-Border Contractor, Burnaby
Client: A contractor working on both sides of the border · Where: Burnaby, British Columbia · Engagement: 10 weeks, fixed fee
Amount reversed$107,000
ObjectionAllowed in full
Account balanceNil
The situation — A contractor working on both sides of the border, Burnaby, British Columbia
A contractor working on both sides of the border in Burnaby, British Columbia had been reassessed for $107,000 and had 6 days left on the objection deadline. The reassessment rested on US tax paid but no foreign tax credit claimed on the Canadian return.
What we did for A contractor working on both sides of the border, Burnaby, British Columbia
We filed the objection inside the deadline with a complete submission rather than a placeholder, and reconstructed the day count on both sides of the border and documented the residency and treaty position before either revenue authority asked.
The result — A contractor working on both sides of the border, Burnaby, British Columbia
The appeals officer allowed the objection in full. $107,000 was reversed and the account returned to a nil balance.
Case Study 3 · Deadline rescue
Filed On Time From A Standing Start, $133,000 Penalty Avoided — US Pension Recipient, Moncton
Client: A Canadian resident receiving US pension income · Where: Moncton, New Brunswick · Engagement: 5 weeks, fixed fee
Penalty avoided$133,000
Turnaround5 weeks
FiledOn time
The situation — A Canadian resident receiving US pension income, Moncton, New Brunswick
A Canadian resident receiving US pension income in Moncton, New Brunswick came to us 5 weeks before its filing deadline with invoices paid to a non-resident consultant working on site in Canada with no Regulation 105 withholding taken. A late filing would have triggered a penalty of roughly $133,000 before interest.
What we did for A Canadian resident receiving US pension income, Moncton, New Brunswick
We worked backwards from the deadline. We restructured the US holding so the Canadian and US characterisations aligned, ending the double taxation going forward, prioritising the items that actually gated the filing and deferring everything that did not.
The result — A Canadian resident receiving US pension income, Moncton, New Brunswick
The return was filed on time and complete. The $133,000 penalty never arose, and the compliance calendar we set means the next deadline is scheduled rather than discovered.
Case Study 4 · Scaling without breaking
Growth Handled Without A Missed Filing, $34,000 Freed — US Citizen in Canada, Vancouver
Client: A US citizen living in Canada · Where: Vancouver, British Columbia · Engagement: 10 weeks, fixed fee
Cash freed$34,000
Compliance failuresNone
ReportingMonthly
The situation — A US citizen living in Canada, Vancouver, British Columbia
A US citizen living in Canada in Vancouver, British Columbia was opening in a second province — different filing obligations, a different payroll regime, and dividends paid to a non-resident shareholder with nothing withheld, leaving the payer holding the liability already in the file.
What we did for A US citizen living in Canada, Vancouver, British Columbia
We registered the payer for a non-resident withholding account, remitted the Regulation 105 amounts due, and applied for waivers covering the rest of the contract and put monthly reporting in place so the owner could see the cash effect of growth while there was still time to act on it.
The result — A US citizen living in Canada, Vancouver, British Columbia
Growth was absorbed without a compliance failure. $34,000 of cash was released, and the monthly reporting now flags a problem while it is still small.
Client: A snowbird spending winters in Arizona · Where: Halifax, Nova Scotia · Engagement: 8 weeks, fixed fee
Overpayment refunded$132,000
Late remittances sinceZero
ScheduleAutomated
The situation — A snowbird spending winters in Arizona, Halifax, Nova Scotia
Remittances at a snowbird spending winters in Arizona in Halifax, Nova Scotia were consistently late by a few days, which was enough to trigger penalties every quarter. Behind it sat winters spent in the United States with the day count kept casually and no residency position documented anywhere.
What we did for A snowbird spending winters in Arizona, Halifax, Nova Scotia
We aligned the Canadian and US reporting of the same income so the foreign tax credit claim carried support on both returns, then moved the remittance dates into a scheduled process rather than a monthly decision.
The result — A snowbird spending winters in Arizona, Halifax, Nova Scotia
Penalties stopped from the following remittance onwards, and $132,000 of overpaid instalments was refunded.
Case Study 6 · Planning that cut the bill
$46,000 Cut From The Annual Tax Bill — US Retirement Account Holder, Red Deer
Client: A dual citizen with a US retirement account · Where: Red Deer, Alberta · Engagement: 11 weeks, fixed fee
First-year saving$46,000
RepeatsAnnually
Filing positionUnchanged in risk
The situation — A dual citizen with a US retirement account, Red Deer, Alberta
A dual citizen with a US retirement account in Red Deer, Alberta was compliant but paying more than it needed to. The prior year had been filed correctly and still left foreign accounts that had passed the $100,000 T1135 threshold three years earlier on the table.
What we did for A dual citizen with a US retirement account, Red Deer, Alberta
We modelled the current position against the alternatives before changing anything, then filed the section 216 election with the supporting rental statements and recovered the excess withholding as a refund.
The result — A dual citizen with a US retirement account, Red Deer, Alberta
The change saved $46,000 in the first year and repeats annually. Nothing about the filings became more aggressive; the position is simply the one the rules already allowed.
Reviewed for the 2025 tax year by Udit Gupta, Founder and Tax Accountant. These case studies are illustrative worked examples composed from the CRA rules that apply to this type of work, not specific client files; figures are representative and outcomes depend on your own facts.
