Which treaty wins when three countries apply — where does doing it myself start to cost money?
Some of it, yes — and we will say so on the call if that is the honest answer. The parts that are worth paying for are the ones where a missed election, a missed deadline or an unverified threshold costs more than the fee: each treaty is applied between its own pair of countries, so residence is settled first, then each income stream is traced from source to residence.
What if I have already filed and got it wrong?
That is a common starting point. We re-derive the position, identify whether an amendment or a disclosure route is the right vehicle, and tell you which one preserves the relief that is still available. The order matters more than the speed.
How long will it take?
It depends on the documents rather than on us. Once the pack is complete most filings turn around inside a fortnight; anything that needs a certificate from a tax authority runs on that authority's timetable, which we tell you at the start rather than at the end.
Is there one treaty that covers three countries at once?
No. Treaties are bilateral agreements between two states, so a three-country position is resolved by applying two or three separate agreements in sequence rather than by finding a single document that covers everything. The sequence matters. Residence is settled first, because almost every other article depends on knowing which state you are resident in for treaty purposes, and only then is each income stream traced from its source to that residence. Where the answers still conflict there is no third treaty to break the tie.
Which country taxes me if I live, work and hold citizenship in different places?
Start with residence, and note that it is decided treaty by treaty rather than once for all purposes. Domestic law in each state can make you resident there; the relevant treaty's tie-breaker then allocates residence between that pair of countries. Citizenship matters only where a state taxes on that basis. Once residence is settled for each pair, each income stream is traced from where it arises to where you are resident, using the agreement between those two states. The answer is often different for employment income than for investment income on identical facts.
Two treaties give different answers, so which one applies?
Each applies to its own pair of countries and neither overrides the other, so the honest answer is that both apply and the conflict is real rather than a mistake in reading them. What resolves it is the order of application: settle residence first, then take each income stream from source to residence through the agreement governing that specific pair. A state that is neither the source nor your residence for that stream frequently turns out to have no claim at all once the sequence is followed, even though its treaty looked relevant at the outset.
What is the competent authority route and when would I need it?
It is the government-to-government mechanism built into treaties for cases the articles do not resolve between them. When the sequence has been applied properly and the same income is still taxed twice, typically because two states characterise it differently or both assert residence, the answer is to ask the two authorities to settle the point with each other rather than to keep arguing it separately in each country. It is slow and document-heavy, so it is worth exhausting the ordinary claim routes first and preparing the file as though it will be needed.
Can I be treaty resident in two countries at the same time?
Under domestic law, yes, and that is the usual starting point of these files. Each treaty then has a tie-breaker that allocates residence between the two states party to it, working through a series of tests in order. Where a third country is involved the tie-breaker is run for each pair, which is why a person can be treaty-resident in one state against a second and in a different state against a third. That is not a contradiction, it is what bilateral agreements produce, and the returns have to reflect it consistently.
Why does my foreign tax credit not cover all the tax I paid?
Credits are generally limited to the tax the residence country would itself have charged on that income, and they relieve only tax the treaty actually gave the other state the right to charge. Tax withheld above a treaty rate is therefore usually not creditable. It is recoverable from the state that took it, by claim, and treating it as a credit instead simply moves the problem to a different return. Where three countries are involved the credit also has to be claimed in the right place, against the residence country's tax rather than an intermediate state's.
How do Canadians reduce US estate tax exposure?
The treaty does much of the work: it gives a Canadian resident a credit pro-rated by the share of the worldwide estate made up of US assets, plus a marital credit that can defer exposure on a transfer to a spouse. Beyond that the levers are the ones you would expect — the domicile of the funds you hold, whether US real property is held directly or through a structure, and life insurance to fund the liability rather than reduce it. Worldwide estate value is what the pro-ration turns on. See treaty relief on US estate tax.
How is my RRSP taxed if I move to the United States?
The treaty lets a US resident defer US tax on the income accruing inside an RRSP or RRIF until it is distributed, which is what stops annual growth being taxed with no cash to pay it — but the position has to be taken and, historically, disclosed. On withdrawal Canada takes withholding as the source country and the United States taxes the distribution with a credit, complicated by the fact that the two systems can measure the taxable portion differently. Contributions and basis need tracking from the start. See treaty relief for RRSPs, 401(k)s and IRAs.
