A treaty allocates taxing rights between two states and relieves the double taxation that would otherwise arise. It does not apply itself. Relief is claimed, and the claim is made to the state being asked to give it up — usually the state of source, which has the least interest in accepting it and the clearest view of what it is being asked to forgo.
That state examines two things. The first is whether the claimant is resident in the other contracting state within the meaning of the treaty. The second, increasingly, is whether obtaining the benefit was one of the principal purposes of the arrangement. Both have moved a long way from the position in which a certificate of residence was, in practice, the end of the enquiry.
Residence is a conclusion, not a certificate
A certificate of tax residence is evidence that the issuing authority regards the company as resident under its domestic law. It is useful and it is not determinative, because the treaty’s own definition applies, and where a company is resident in both states under their respective domestic laws the treaty’s tie-breaker decides between them. That tie-breaker looks to where the company is effectively managed or, under several modern treaties, to an agreement between the two authorities.
Effective management is a question of fact about where the key commercial and management decisions are actually taken. It is not answered by the location of the registered office, by the residence of the shareholders, or by where the accounts are prepared. It is answered by where the people who direct the company do so, and the evidence for it is the ordinary record of the company being directed: who met, where, what was put before them and what they decided.
The state asked to give up its taxing right is entitled to test whether the company claiming relief is more than an address in the other state.
What a source state now looks for
Beyond residence, the source state examines whether the recipient is the beneficial owner of the income, where the treaty article requires it. A company that receives a payment and is obliged, in substance, to pass it on has been treated in a number of jurisdictions as a conduit rather than a beneficial owner, whatever its legal title. The enquiry looks at the flows: what came in, what went out, how quickly, and whether the recipient had any real discretion over it.
Where a principal purpose test applies, the enquiry widens again to the reason the arrangement exists. Relief may be denied where obtaining it was one of the principal purposes of the arrangement, unless granting it accords with the object and purpose of the relevant provisions. A holding company with genuine commercial functions and a documented rationale is in a very different position from one whose only discernible attribute is its location, and the difference is evidenced by the same records that support the residence position.
What this means for existing structures
Structures formed when a certificate was sufficient are not thereby defective, but they may be under-evidenced for the enquiry now made. The practical review asks whether the board is composed of people who can and do take the company’s decisions, whether those decisions are taken and recorded in the state of claimed residence, whether the company has functions beyond holding, and whether a coherent reason for its location exists in a document written before the claim was contemplated.
Where the answers are weak, the remedy is generally operational rather than structural: changing how and where the company is directed, and recording it. Where it is the structure itself that has no purpose other than the treaty, no amount of documentation will supply one, and the more useful conversation is whether the arrangement should continue at all. In either case the assessment is better made while the position can still be improved prospectively, since a treaty claim is examined against the period to which it relates.
This note is general in application and does not constitute legal, tax or regulatory advice. It describes practice observed across institutions and should not be relied upon in relation to any particular treaty claim.