Do I have to file at home while living in Zambia?
Residence decides it, and residence is a question of facts rather than of where your post arrives. The one exception is US citizenship, which carries the filing obligation with the person wherever they go. So the first thing we establish is which system still claims you.
Is there a treaty between my country and Zambia?
That is verified rather than assumed: we confirm which treaty text governs Zambia and your home country for the year in question, because a protocol can move a rate or an article between years. If there is no treaty, unilateral credit rules are what prevent double taxation.
I own property in Zambia. Where is the rent taxed?
In Zambia, because that is where the property sits. The complication is the base: gross-rent withholding takes no account of mortgage interest, tax or repairs, so a leveraged property can face tax on turnover. An election onto net profit, where it exists, is what fixes that — and it has its own timing.
Why does a rotational contract create a double-claim risk specifically?
Because a rotational contract puts a worker in the host country for a substantial part of the year without ending home residence, both countries can have a genuine claim to tax the same income under their own domestic rules, and without a treaty-based resolution the worker can face tax on the same income in both places.
Does a rotational contract in the mining or energy sector need a different residency analysis than a standard posting?
The underlying tests are the same, but rotational schedules are structured specifically around residency thresholds, so the actual day count kept for the rotation matters more here than for a standard continuous posting, and rotation-specific record-keeping is worth setting up from the start of the contract.
Can treaty relief resolve a Zambia rotational double-claim even where both countries' domestic rules genuinely apply?
Generally yes, where a treaty is in force — the relief mechanism is built for exactly this situation, where both countries' domestic residency rules independently and validly apply to the same person, and the treaty then decides which country has the primary taxing right or how the tax is otherwise apportioned.
Does foreign employment income create RRSP room?
Only where it is earned income reported on a Canadian return. RRSP room is built from earned income that Canada sees, so a non-resident year of foreign salary generally builds none, and foreign tax paid does not create room of its own. This is why people returning to Canada after years abroad find their contribution room much smaller than the years elapsed suggest, and why the notice of assessment is the only reliable statement of it. See returning to Canada after years abroad.
Do green card holders living abroad have to file US taxes?
Yes. A lawful permanent resident is a US tax resident, taxed on worldwide income, and that status does not end simply because you moved away — it ends when it is formally abandoned or administratively terminated. Two traps follow. Filing as a non-resident on a treaty claim can put the immigration status itself at risk. And ending the status after holding it long-term can bring you inside the expatriation regime. See giving up a green card.
