6 worked Canada-US Cross-Border Tax Services 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 canada-us cross-border tax services work, not a specific client's file.
Case Study 1 · Cash and remittance control
Remittance Schedule Corrected, $42,000 Refunded — US-Facing Canadian Corporation, Saskatoon
Client: A Canadian corporation with US customers · Where: Saskatoon, Saskatchewan · Engagement: 6 weeks, fixed fee
Overpayment refunded$42,000
Late remittances sinceZero
ScheduleAutomated
The situation — A Canadian corporation with US customers, Saskatoon, Saskatchewan
Remittances at a Canadian corporation with US customers in Saskatoon, Saskatchewan were consistently late by a few days. That was enough to trigger penalties every quarter. Behind it sat foreign accounts that had passed the $100,000 T1135 threshold three years earlier.
What we did for A Canadian corporation with US customers, Saskatoon, Saskatchewan
We filed the outstanding T1135 disclosures through the Voluntary Disclosures Program, which eliminated the penalty exposure entirely. Then we moved the remittance dates into a scheduled process rather than a monthly decision.
The result — A Canadian corporation with US customers, Saskatoon, Saskatchewan
Penalties stopped from the following remittance onwards, and $42,000 of overpaid instalments was refunded.
Case Study 2 · Missed incentive claimed
$130,000 In Credits Claimed That Prior Filings Had Missed — Non-Resident Landlord, Burnaby
Client: A non-resident owning Canadian rental property · Where: Burnaby, British Columbia · Engagement: 11 weeks, fixed fee
Credits claimed$130,000
Years adjusted3
Review outcomeNo adjustment
The situation — A non-resident owning Canadian rental property, Burnaby, British Columbia
A non-resident owning Canadian rental property in Burnaby, British Columbia had been filing for 3 years. In that time, the incentives its activity qualified for were never claimed. Behind that sat a US LLC taxed as a corporation in Canada, producing double tax on the same income.
What we did for A non-resident owning Canadian rental property, Burnaby, British Columbia
We tested each activity against the eligibility criteria rather than the description on the invoice. Then we reported the deemed disposition properly on the departure return and claimed the foreign tax credits that had been left unused.
The result — A non-resident owning Canadian rental property, Burnaby, British Columbia
$130,000 in credits claimed, with the open prior years adjusted as well. The claim passed review without adjustment.
Case Study 3 · Sale and succession
$585,000 Sheltered By The Lifetime Capital Gains Exemption — Mid-Year Emigrant, Regina
Client: An emigrant who left Canada mid-year · Where: Regina, Saskatchewan · Engagement: 5 weeks, fixed fee
Gain sheltered$585,000
ClosingOn schedule
Share qualificationMet
The situation — An emigrant who left Canada mid-year, Regina, Saskatchewan
An emigrant who left Canada mid-year in Regina, Saskatchewan had an offer on the table and 18 months to close. The shares did not qualify for the capital gains exemption. No valuation on file to support the price the parties had agreed was part of the reason.
What we did for An emigrant who left Canada mid-year, Regina, Saskatchewan
We purified the corporation so the shares met the qualifying tests. We reconstructed the day count on both sides of the border and documented the residency and treaty position before either revenue authority asked. All of it was done well ahead of the closing date.
The result — An emigrant who left Canada mid-year, Regina, Saskatchewan
The sale closed on schedule with $585,000 sheltered by the lifetime capital gains exemption across the shareholders.
Case Study 4 · Deadline rescue
Filed On Time From A Standing Start, $105,000 Penalty Avoided — Inbound Assignee, Red Deer
Client: An inbound transferee on assignment · Where: Red Deer, Alberta · Engagement: 5 weeks, fixed fee
Penalty avoided$105,000
Turnaround5 weeks
FiledOn time
The situation — An inbound transferee on assignment, Red Deer, Alberta
An inbound transferee on assignment in Red Deer, Alberta came to us 5 weeks before its filing deadline. The file came with a departure year filed as a normal resident return with no deemed disposition reported. A late filing would have triggered a penalty of roughly $105,000 before interest.
What we did for An inbound transferee on assignment, Red Deer, Alberta
We worked backwards from the deadline. We restructured the US holding so the Canadian and US characterisations aligned, ending the double taxation going forward. We prioritised the items that actually gated the filing and deferred everything that did not.
The result — An inbound transferee on assignment, Red Deer, Alberta
The return was filed on time and complete. The $105,000 penalty never arose, and the compliance calendar we set means the next deadline is scheduled rather than discovered.
Case Study 5 · Scaling without breaking
Second-Province Expansion Handled, $94,000 Of Cash Released — US Branch Operator, Windsor
Client: A Canadian corporation operating a US branch · Where: Windsor, Ontario · Engagement: 11 weeks, fixed fee
Cash released$94,000
New registrationsComplete on day one
Compliance gapsNone
The situation — A Canadian corporation operating a US branch, Windsor, Ontario
Revenue at a Canadian corporation operating a US branch in Windsor, Ontario 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 A Canadian corporation operating a US branch, Windsor, Ontario
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 was set up before it was triggered, not after. That covered registration, remittance frequency and provincial filing.
The result — A Canadian corporation operating a US branch, Windsor, Ontario
$94,000 of cash was released from the working capital cycle. The expansion completed with every registration and filing obligation covered from day one.
Case Study 6 · CRA review defended
$131,000 Reassessment Reduced To Nil On Review — Florida Property Owner, Barrie
Client: A family with a Florida vacation property · Where: Barrie, Ontario · Engagement: 6 weeks, fixed fee
Reassessment reduced toNil
Tax protected$131,000
Prior filingsUndisturbed
The situation — A family with a Florida vacation property, Barrie, Ontario
A review notice arrived at a family with a Florida vacation property in Barrie, Ontario, covering Canada-US cross-border tax services for two tax years. The auditor's working position was an adjustment of $131,000. It was driven by invoices paid to a non-resident consultant working on site in Canada with no Regulation 105 withholding taken.
What we did for A family with a Florida vacation property, Barrie, Ontario
Rather than negotiate, we rebuilt the record. We aligned the Canadian and US reporting of the same income so the foreign tax credit claim carried support on both returns. We then submitted a point-by-point response that answered each proposed adjustment with the document behind it.
The result — A family with a Florida vacation property, Barrie, Ontario
The auditor accepted the documented position and closed the review without adjustment, protecting $131,000 and leaving the prior filings undisturbed.
Reviewed by Udit Gupta, Founder and Tax Accountant for the 2025 tax year. 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.
