Do I have to file at home while living in Luxembourg?
It depends on residence, not on address — except for US citizens and green-card holders, for whom the answer is yes regardless of where they live. We settle the residence question first, because every other answer follows from it.
Is there a treaty between my country and Luxembourg?
Possibly, and the version in force for your year is the one that matters — protocols and multilateral-instrument positions change what a treaty does without changing its name. We check it against the authority rather than a summary. Where no treaty applies, domestic relief takes over.
I own property in Luxembourg. Where is the rent taxed?
Rent from immovable property is almost always taxable where the property is situated, frequently by withholding on the gross amount, with your home country taxing the same income and giving credit. A net-basis election, where one exists, is usually the difference between tax on profit and tax on turnover.
Does my Luxembourg holding company need substance to claim treaty benefits?
In practice, yes, and the question is asked of the facts rather than of the incorporation certificate. What is examined is who the directors are, where they actually meet and decide, whether the entity has people and premises appropriate to what it does, and whether its records show decisions being taken there rather than ratified there. A registered address and a local administrator answering post is the weakest possible version of this. Where the entity is genuinely run from elsewhere, a treaty claim rests on an argument the file does not support, and that is usually discovered at the point a withholding refund is refused.
What records prove where a Luxembourg company is really managed?
The board minutes, and what sits behind them. Minutes that record a genuine discussion, with the papers that were circulated beforehand, the attendance and where each director was when they attended, carry weight. Minutes produced afterwards in identical form each quarter do not. The supporting material matters as much: contracts negotiated and signed locally, bank mandates operated by the local directors, and correspondence showing that the questions were put to them rather than to a shareholder abroad. The test is whether a reader of the file could tell where the decisions were made without being told.
Can a Luxembourg company be treated as resident in Canada instead?
It can, because residence for a company is not settled by where it was incorporated alone. Where the real decisions about the business are taken elsewhere, the other country may treat the company as resident there, which brings its worldwide income into that system and can cut across the treaty position the structure was built on. This usually surfaces when a shareholder who lives abroad is effectively directing the entity by email. The fix is rarely paperwork after the fact; it is changing how the entity is actually run, and doing so before a position is taken for the year.
Where is my carried interest taxed if I live outside Luxembourg?
Start with what the entitlement actually is under the fund documents, because the label is not decisive. A share of profits from an interest you hold, a payment for services performed, and a return on money you invested are taxed on different bases and may be sourced to different places. Then ask where the work that earned it was done, and over what period, because an entitlement built up over several years while you lived in more than one country may need allocating. The answer follows the documents and the chronology, which is why both are assembled before any figure is prepared.
Do I report shares in a Luxembourg holding company on my home return?
An interest in a company incorporated abroad is property held abroad, and home-country foreign property reporting generally reaches it whether the entity distributes anything or not. A dormant holding vehicle is still reportable. Where the interest is held through another entity or a nominee arrangement, the reporting can apply at more than one level, so the ownership chain is worth mapping before the schedule is prepared. Separately, holding an interest in a foreign company can bring its own annual information requirements at home, which are distinct from reporting the shares as property.
I moved to Luxembourg mid-year, do I still file back home?
Almost always, for at least part of the year, and sometimes indefinitely. A move ends home residence only when the connections that create it are actually broken, and a home kept available, a family who stayed behind or continuing employment can keep it open. Americans file wherever they live, because citizenship rather than residence drives that obligation. So the year of the move usually produces two filings rather than one, split at a date that has to be established on the facts and then used consistently in both.
Does hiring one remote employee in another country create a tax presence?
It can, on two separate fronts, and the second applies even when the first does not. A permanent establishment may arise if the employee has a fixed place of business there or concludes contracts for you. Independently of that, employing someone locally generally brings payroll registration, wage withholding and social security contributions in their country from the first payroll — obligations that do not wait for a permanent establishment finding. Contractor paperwork does not by itself avoid either. See remote work and tax exposure.
Is the foreign tax credit refundable?
No. It reduces your tax to nil at most; it never pays out beyond that. Where foreign tax exceeds the credit you are allowed, the excess is generally carried back or forward within its own category rather than refunded — so a high-tax year abroad can leave a balance you use in a later year. Tracking those balances matters, because an unused carryforward can expire. Our carryforward tracker keeps the running position.
