Do I file in both Canada and Singapore?
Usually yes, at least for the transition year. Individually the issue is whether Canadian residence ended; corporately it is whether the Singapore entity has the substance to support its treaty position.
Which return do you prepare first?
Whichever one the credit depends on. Preparing them in the wrong order is the most common reason a credit is claimed in the wrong place, and it is also the most common reason a client ends up paying twice and reclaiming later.
Does the treaty mean I only file once?
No. A treaty allocates the tax; it does not consolidate the filing. Both obligations survive, and in some cases the treaty position itself has to be disclosed on a return before it can be relied on.
What about sub-national tax — states and provinces?
They set their own residency and sourcing rules and are not bound by the federal treaty in the same way. A position that is protected federally can still produce a state or provincial return, which is the single most common surprise in this corridor.
Can you work with my adviser in the other country?
That is how most corridor engagements run. They keep their side, we take ours and the interaction between the two, and the scope boundary is agreed in writing so nothing is duplicated or dropped.
What if I am behind in one country and current in the other?
That is the usual pattern. We map the unfiled years first and check which catch-up routes are open before anything is filed, because the route chosen for one year affects the relief available for the rest.
Am I still a Canadian resident on a Singapore posting?
It depends on what you left behind, not on how long the posting runs. Where the family moves with you, the Canadian home is sold or genuinely let on arm's length terms, and the everyday ties are wound up, residence can end on a datable day. Where a spouse, a child or an available home stays in Canada, it usually has not. This is the first question on every individual file in this corridor, because the rest follows from it. A continuing resident reports worldwide income in Canada with credit for Singapore tax paid, while someone who has ceased residence has a departure year to deal with instead.
Does my Singapore holding company need real staff for treaty benefits?
It needs enough substance to support the position it is claiming, and staff are one of the clearest forms of it. Singapore is widely used as a holding location for Asian operations, which is precisely why entities there are examined. The questions are where the company is really managed, who takes the decisions, whether it bears any commercial risk, and whether it is the beneficial owner of what it receives. A company with local directors who genuinely decide, its own premises and people, and its own bank authority can answer those questions from records. One administered entirely from elsewhere cannot.
Is income kept outside Singapore still taxable in Canada?
Yes, if you are a Canadian resident. Canada taxes its residents on worldwide income as it arises, regardless of where the money sits or whether it is ever brought here. Singapore's own rules may treat certain foreign-sourced income differently depending on whether it is received there, and that difference is usually what gives rise to the misunderstanding: income untaxed in Singapore is assumed to be untaxed everywhere. It is not. A credit is available only for tax actually paid, so income that escaped Singapore tax is generally taxed in full in Canada. The two systems are calculated together rather than one after the other.
My employer pays my Singapore housing, is that taxable in Canada?
If you remain a Canadian resident, employer-provided housing is part of what you receive for your work and is reported as such, valued by what the employer provides rather than by what you would have chosen to spend. The same is true of school fees, a car, home leave and any tax equalisation payment made on your behalf. Assignment packages are often quoted net of tax, which makes the reported figure larger than the amount reaching your account, and that reconciliation is what catches people out. The starting point is the employer's own assignment documentation, because the Canadian return has to reflect the whole package.
Do I pay Canadian tax on my Singapore employment income?
If your Canadian residence continued, yes, with a credit for the Singapore tax actually paid on the same income, which reduces the Canadian liability but does not usually remove it. If your residence genuinely ended, Canada taxes you only on certain Canadian-source amounts after that date, and there is a departure year to file dealing with what you owned when you left. The two outcomes are very different, and they turn on facts you can influence before you go far more easily than afterwards. Settle the residence question first and the computation is largely mechanical.
Which country wins if both say I am resident?
Where both countries treat you as resident under their own domestic rules, the treaty's tie-breaker decides, working through a sequence: the permanent home available to you, then the centre of your vital interests, then habitual abode, and finally nationality, with the competent authorities settling anything that remains. It is applied in order and it stops at the first test that gives an answer. Being covered by the tie-breaker does not remove your filing duties either. You generally still file and claim the position rather than simply not filing. The evidence it rests on is the ordinary record of where your life actually is.
Do I get credit for all of the foreign tax I paid?
Only up to your own country's tax on that same income, and only for tax you were legally obliged to pay. Two consequences follow. Living somewhere that taxes you more heavily than your residence country does leaves an excess that becomes a carryover rather than a refund. And withholding suffered above the treaty rate is not creditable — the route back to that money is a refund claim in the country that took it. See claiming the credit.
Is the sale of foreign property taxable where I live?
For a resident, yes — worldwide gains are taxable, and the gain is computed in your own currency, so the exchange rate at purchase and at sale changes the number even when the local-currency price did not move. The country where the property sits usually taxes it too, often with a withholding or clearance step before closing, and that tax becomes a credit. A principal residence relief may apply to a home abroad on the same terms as one at home. See principal residence and foreign property.