Personal taxation · Luxembourg
Tax residence and dual residence in Luxembourg
Tax residence is determined first under the domestic law of the countries concerned. If two countries both treat you as resident, the tax treaty can settle the matter using its successive criteria. The 183-day rule is not a universal answer for every case.
Financial Services Luxembourg · Licensed accountant · Head of the firm: Mickaël LOC. Editorial update: .
Separate three questions
| Question | Useful information | Mistake to avoid |
|---|---|---|
| Where are you registered? | Address and administrative formalities | Treating registration as an automatic tax conclusion |
| Where are you tax resident? | Homes, stays, personal and economic ties | Relying on a single isolated indicator |
| Where is an item of income taxable? | Nature, source and tax treaty | Concluding that all income follows residence |
Examine the facts, then the treaty
A home available to you and the actual organisation of your life are important factors. Where domestic laws result in dual residence, tax treaties generally provide successive criteria to be applied in their order and according to their wording.
The centre of vital interests, habitual abode or nationality may come into this treaty analysis; no simplified list replaces the relevant text and documented facts.
Fictitious example of a situation to document
A person rents a flat in Luxembourg but keeps a home occupied by their spouse in a neighbouring country. The Luxembourg lease alone does not resolve the question. You need to document the availability of each home, the stays and the household's ties.
A certificate of residence may be requested depending on the situation, but it must be consistent with the facts and does not remove the conditions of a tax treaty.
Preparing an analysis
- Calendar of stays and dates of moves.
- Documents on the homes available and how they are used.
- Contracts, places of work and household arrangements.
- Returns or residence applications already made abroad.
The firm’s other tax engagements
Depending on your situation, the firm also handles tax, VAT and payroll, the regularisation of late tax filings and assistance during a tax audit. Fees are listed in the firm’s fee grid.
Official sources and scope
The rules apply to the year and profile concerned. Examples flagged as fictitious explain a method; they are not an individual validation. The documents and options of your file are covered by a separate engagement.