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Key Takeaways
- C&W pursued a time-sensitive equipment rental and took on tax exposure it did not price into the decision
- When the facts align with the CRA's case theory this clearly, strategy and dispute containment determine how much exposure can be reduced
- In cases like these, the conditions shift the strategy and expected outcome from overturning the reassessment to reducing how much of it stands.
The Situation
A drilling rig offshore Newfoundland lost a mooring chain. Without replacement, the operator, Seadrill Canada Ltd., faced safety risk and shutdown costs of roughly $500,000 per day.
C&W Offshore builds fabricated steel products. It does not rent offshore equipment.
C&W identified an opportunity to profit and solve Seadrill Canada's problem. It sourced and supplied replacement chains for Seadrill Canada through a UK company within a global supplier group. A Norwegian affiliate owned the chains.
C&W dealt with the UK entity for the transaction. It agreed to pricing, received invoices, and paid approximately $8.9 million to the UK entity. It did not withhold tax.
The Canada Revenue Agency reassessed under paragraph 212(1)(d) and section 215 of the Income Tax Act, on the basis that C&W paid a non-resident for the use of equipment in Canada. The Canada–UK Treaty (Article 12) limited withholding to 10 percent. CRA also assessed penalties under subsection 227(8) of the ITA.
Why withholding tax applied
Canadian law applies withholding tax when a Canadian company pays a non-resident for the use of equipment in Canada (Income Tax Act, ss. 212(1)(d) and 215).
Under the Canada–UK Treaty (Article 12), those payments are treated as royalties and remain taxable in Canada at a reduced rate of 10% where the UK entity is the beneficial owner.
The result would likely have differed if the payments had flowed directly to Norway. Under the Canada–Norway Treaty (Articles 7 and 12), equipment rental may fall outside “royalties” and be treated as business profits, which are not taxable in Canada without a permanent establishment.
The analysis, therefore, turns on who receives, controls, and bears risk on the payment.
What Made the Difference
CRA relied on a direct and consistent set of facts:
- C&W contracted with the UK entity
- the UK entity invoiced C&W
- the UK entity received and controlled the payments
- the UK entity paid its Norwegian affiliate before collecting from C&W and funded the gap
Those elements aligned. They gave CRA a single position that required little explanation.
C&W pointed to the broader arrangement. The Norwegian entity owned the chains and controlled operational decisions. That did not change who received the payments or who controlled the money.
The Tax Court followed the payment path. It treated the UK entity as the recipient of the income and upheld withholding under Part XIII, reduced to 10 percent under the Treaty.
Where the contracts, invoices, and cash flow align, CRA does not need to build a second theory.
The Signal
CRA started from a simple position: one payer, one payee, one payment for the use of equipment in Canada. That position holds unless something in the record breaks it.
If the payment had flowed directly to Norway, the withholding result likely would have been different under the Canada–Norway Treaty. The dispute turned on the path the payment took, not the asset being used.
Where CRA’s case rests on a clean and consistent record, moving quickly to a defined litigation position can be more effective than engaging with the CRA in its self-adjudicated objection stage. Filing pleadings early can sharpen the issues, create more leverage, and provide a better opportunity to resolve the matter before a hearing.
In disputes like this, the structure holds. The question is where it can still be moved.
The work shifts to reducing how much of the CRA's position stands. That includes testing whether the full payment attracts withholding or whether parts tied to coordination or related services can be separated in a negotiated resolution or advanced before the Tax Court.
Pursuing a partial reduction and abandoning the rest takes courage and discipline, and usually delivers the better result.
Case Reference: C&W Offshore Ltd. v. HMK, 2026 TCC 40
For additional analysis, see our Insights.
