6 worked Cross Border 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 tax work, not a specific client's file.
Case Study 1 · Scaling without breaking
Second-Province Expansion Handled, $65,000 Of Cash Released — Inbound Assignee, Winnipeg
Client: An inbound transferee on assignment · Where: Winnipeg, Manitoba · Engagement: 6 weeks, fixed fee
Cash released$65,000
New registrationsComplete on day one
Compliance gapsNone
The situation — An inbound transferee on assignment, Winnipeg, Manitoba
Revenue at an inbound transferee on assignment in Winnipeg, Manitoba was up sharply and cash was tighter than ever. Underneath it sat US tax paid but no foreign tax credit claimed on the Canadian return.
What we did for An inbound transferee on assignment, Winnipeg, Manitoba
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. Every new obligation — registration, remittance frequency, provincial filing — was set up before it was triggered, not after.
The result — An inbound transferee on assignment, Winnipeg, Manitoba
$65,000 of cash was released from the working capital cycle, and the expansion completed with every registration and filing obligation covered from day one.
Case Study 2 · Cross-border exposure resolved
$137,000 Of Excess Withholding Refunded On Election — Arizona Snowbird, Kelowna
Client: A snowbird spending winters in Arizona · Where: Kelowna, British Columbia · Engagement: 7 weeks, fixed fee
Withholding refunded$137,000
ElectionFiled and accepted
Cross-border reportingConsistent
The situation — A snowbird spending winters in Arizona, Kelowna, British Columbia
A snowbird spending winters in Arizona in Kelowna, British Columbia was paying tax in two countries on one stream of income, because a departure year filed as a normal resident return with no deemed disposition reported had never been reviewed against the treaty.
What we did for A snowbird spending winters in Arizona, Kelowna, British Columbia
We reconstructed the day count on both sides of the border and documented the residency and treaty position before either revenue authority asked and coordinated the timing so the credit claimed in Canada matched the tax actually paid abroad.
The result — A snowbird spending winters in Arizona, Kelowna, British Columbia
$137,000 of excess withholding was refunded and the exposure closed. Both sides of the border now report consistently, which is what keeps the credit claimable.
Case Study 3 · Sale and succession
Intergenerational Transfer Completed With $775,000 Deferred — Florida Property Owner, Burnaby
Client: A family with a Florida vacation property · Where: Burnaby, British Columbia · Engagement: 8 weeks, fixed fee
Tax deferred$775,000
TransferCompleted
RecordsReview-ready
The situation — A family with a Florida vacation property, Burnaby, British Columbia
A generational transfer at a family with a Florida vacation property in Burnaby, British Columbia had been discussed for years without a plan. Passive assets sitting inside the operating company, disqualifying the shares meant the transfer as contemplated would have been fully taxable.
What we did for A family with a Florida vacation property, Burnaby, British Columbia
We filed the outstanding T1135 disclosures through the Voluntary Disclosures Program, which eliminated the penalty exposure entirely, sequencing the steps so each one was complete and documented before the next depended on it.
The result — A family with a Florida vacation property, Burnaby, British Columbia
$775,000 of tax was deferred through the transfer, and the successor generation took over a corporation whose records stood up to review.
Case Study 4 · Objection and relief
Notice Of Objection Allowed In Full, $128,000 Reversed — Canadian on US Payroll, Mississauga
Client: A Canadian with a US employer · Where: Mississauga, Ontario · Engagement: 8 weeks, fixed fee
Amount reversed$128,000
ObjectionAllowed in full
Account balanceNil
The situation — A Canadian with a US employer, Mississauga, Ontario
A Canadian with a US employer in Mississauga, Ontario had been reassessed for $128,000 and had 10 days left on the objection deadline. The reassessment rested on a US LLC taxed as a corporation in Canada, producing double tax on the same income.
What we did for A Canadian with a US employer, Mississauga, Ontario
We filed the objection inside the deadline with a complete submission rather than a placeholder, and filed the section 216 election with the supporting rental statements and recovered the excess withholding as a refund.
The result — A Canadian with a US employer, Mississauga, Ontario
The appeals officer allowed the objection in full. $128,000 was reversed and the account returned to a nil balance.
Case Study 5 · Cash and remittance control
Instalments Rebased, $29,500 Of Cash Returned To The Business — US-Facing Canadian Corporation, Windsor
Client: A Canadian corporation with US customers · Where: Windsor, Ontario · Engagement: 5 weeks, fixed fee
Cash returned$29,500
Instalment basisCurrent year
ReviewedQuarterly
The situation — A Canadian corporation with US customers, Windsor, Ontario
A Canadian corporation with US customers in Windsor, Ontario was paying instalments calculated on a prior year that no longer reflected the business. Foreign accounts that had passed the $100,000 T1135 threshold three years earlier was tying up $29,500 of cash.
What we did for A Canadian corporation with US customers, Windsor, Ontario
We rebased the instalments on the current-year estimate rather than the prior-year default, and applied the treaty rate to the dividend withholding, filed the NR4 return, and remitted the shortfall before the CRA assessed the payer for it.
The result — A Canadian corporation with US customers, Windsor, Ontario
$29,500 of cash stayed in the business, the penalty cycle ended, and the instalment position is reviewed each quarter against actual results.
Case Study 6 · CRA review defended
$105,000 Proposed Adjustment Withdrawn In Full — Cross-Border Contractor, Halifax
Client: A contractor working on both sides of the border · Where: Halifax, Nova Scotia · Engagement: 4 weeks, fixed fee
Adjustment withdrawn$105,000
File closed in4 weeks
Penalties assessedNone
The situation — A contractor working on both sides of the border, Halifax, Nova Scotia
A contractor working on both sides of the border in Halifax, Nova Scotia received a proposal letter opening a review of cross border tax. The CRA had identified winters spent in the United States with the day count kept casually and no residency position documented anywhere and proposed an adjustment of $105,000, with 30 days to respond.
What we did for A contractor working on both sides of the border, Halifax, Nova Scotia
We treated the response as an evidence exercise rather than an argument. We aligned the Canadian and US reporting of the same income so the foreign tax credit claim carried support on both returns, then indexed every supporting document against the specific line the auditor had questioned.
The result — A contractor working on both sides of the border, Halifax, Nova Scotia
The proposed adjustment was withdrawn in full — all $105,000 of it. The file closed in 4 weeks with no change to the assessed amounts and no penalty.
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.
