The essentials. Buying property together in Luxembourg is not just about signing together: your status decides who owns what, what happens in case of separation or death, and your taxation. Without a contract, a married couple falls under the legal community regime and shares the home in equal parts, even with unequal contributions; a partner or a cohabiting partner buys in joint ownership and does not inherit from the other without a will. And as a couple, you stack the Bëllegen Akt twice, up to 80,000 EUR of tax credit that wipes out the registration duties on almost any property in the south.
Buying together in Luxembourg: why your status changes everything
Luxembourg law does not look at your love story, it looks at your legal status. Married, in a partnership or cohabiting, you are not buying within the same framework. Your status determines three things: who really owns the property and in what proportion, what happens to the home in case of separation or death, and the tax advantages you are entitled to. Settling these points before signing avoids painful situations years later.
First reflex to correct: the vocabulary. In Luxembourg there is no PACS but a declared partnership (law of 9 July 2004), and the regimes are not copied from France. Here is, status by status, what you need to know.
You are married: the legal community regime applies by default
If you married without a marriage contract, you automatically fall under the legal community regime, the community of property limited to acquisitions. Direct consequence: the home bought during the marriage is jointly owned in equal parts, even if one of you financed far more than the other. In case of divorce or death, the 50/50 split is the starting point.
Two other regimes exist, by notarial contract:
- Separation of property: each spouse remains the owner of what they buy and finance. Buying together then takes place in joint ownership, according to each person's contribution. A common regime when one spouse runs a risky business (self-employed, trader) or when estates are very unequal.
- Universal community: everything is pooled, including what each owned before. The property belongs entirely to the couple.
No regime is better in the absolute: the right choice depends on your financial and professional situation. It is a conversation to have with your notary, ideally before buying.
You are partners: the inheritance trap to know
The declared partnership (law of 9 July 2004) does not create any community regime. Each partner remains the owner of what they acquire; buying together takes place in joint ownership, in proportion to your financing. On the tax side, partners linked for a certain time enjoy advantages close to those of married couples, in particular for registration duties and inheritance.
The trap lies elsewhere. Unlike a spouse, the surviving partner is not a legal heir. If one of you dies without having planned anything, their share of the home goes to their heirs (their children, their parents), not to their partner. The survivor can then end up in joint ownership of their own home with the deceased's family. The fix is simple and inexpensive: write a will naming the partner. A detail that changes everything.
Neither married nor partners: joint ownership and its risks
In a free union, no status protects you and no regime applies: you buy in pure joint ownership, like two independent buyers. You are free to set equal or unequal shares according to your contributions, but on one imperative condition: that this split appears clearly in the notarial deed. Without it, equal ownership is presumed.
Three risks to anticipate:
- Resale is blocked without both parties' agreement. No one can sell the property alone. In case of disagreement after a separation, the way out is a buyout of the share or a forced sale through the courts.
- The survivor has no priority. On the death of one, their share goes to their heirs. The surviving cohabiting partner may have to buy back that share to stay in the home.
- No couple tax advantage is granted to the cohabiting partner on inheritance.
To secure a purchase in a free union, three tools can be discussed with the notary: a joint account dedicated to the monthly payments, a joint-ownership agreement that sets the rules, and, in certain cases, an accretion clause (tontine) allowing the survivor to become sole owner outside the estate. This clause is a recognised planning tool in Luxembourg, but a technical one: its value and validity are assessed case by case. A property company (SCI) is another route to formalise the split and prepare the transmission, to be weighed with an adviser.
Thinking of selling? A fair valuation is the starting point. Request yours, free of charge and with no commitment.
The 80,000 EUR lever: the Bëllegen Akt when buying together
This is the most concrete advantage of buying together, and the one most articles forget. When buying a home, the State levies registration and transcription duties of 7% of the price (6% + 1%). But every buyer who occupies the property as their main residence benefits from the Bëllegen Akt, a tax credit offset directly against those duties.
The amount: 40,000 EUR per person, i.e. 80,000 EUR for a couple, made permanent since July 2025, provided you occupy the home for at least two years.
The CARMO figure. Take an 85 sq.m. apartment in the south (Pétange, Differdange), at around 5,500 EUR/sq.m., i.e. about 467,500 EUR. The registration duties reach nearly 32,725 EUR. As a couple, your 80,000 EUR credit absorbs the entire amount: you only pay the legal minimum of 100 EUR. Better still: as long as the price stays below roughly 1.14 million EUR, a first-time buyer couple buying in equal shares pays, in practice, no registration duty on their main residence. Buying together is not only two salaries to borrow, it is also two tax credits.
France and Luxembourg: do not mix up the rules
Many cross-border or expatriate buyers reason with the reflexes of their home country. The frameworks differ on decisive points.
| Criterion | France | Luxembourg |
|---|---|---|
| Unmarried couple | PACS or cohabitation | Partnership (law of 9 July 2004) or free union |
| Default matrimonial regime | Community limited to acquisitions | Legal community (limited to acquisitions) |
| Does the partner inherit? | No, not without a will | No, not without a will |
| Tax help when buying | Zero-rate loan under conditions | Bëllegen Akt: 40,000 EUR/person, i.e. 80,000 EUR/couple |
The winning reflex for a cross-border or expatriate buyer: do not transpose French law, and have your setup validated by a Luxembourg notary before the deed.
If you are buying, if you are selling
If you are buying together: settle your status and your shares before signing, have them written into the deed, and plan a will if you are partners or cohabiting. Aiming bigger as a couple? Review your real budget, aids included, before viewing our properties for sale. Our article on the mortgage file that gets a yes usefully completes this step.
If you are selling: a well-structured couple is a reliable buyer. Two incomes, two Bëllegen Akt credits, clear shares: the financing holds and so does the sale agreement. At CARMO, we check candidates' financial strength before you commit, to avoid sales that collapse at the loan stage. Securing the buyer means securing your price.
Thinking of selling? A fair valuation is the starting point. Request yours, free of charge and with no commitment.
FAQ: buying property together in Luxembourg
Do you have to be married to buy together in Luxembourg?
No. You can buy in joint ownership whether you are married, partners or in a free union. Status does not condition the right to buy, but it changes ownership, protection in case of death and taxation.
In Luxembourg, does the partner or cohabiting partner inherit the home?
No, not automatically. Neither the partner (2004 law) nor the cohabiting partner is a legal heir. Without a will, the deceased's share goes to their family. A will is essential to protect the other.
Can you stack the Bëllegen Akt as a couple?
Yes. The tax credit is 40,000 EUR per buyer, i.e. 80,000 EUR for a couple, on the registration duties of the main residence, provided you occupy the property for at least two years. It has been permanent since July 2025.
Married without a contract: who owns the home?
You fall under the legal community regime: the home bought during the marriage is jointly owned in equal parts, even if one financed more. A separation-of-property contract changes this rule.
What is joint ownership and what is the resale risk?
Joint ownership means holding the property together, each for a share. The main risk: you cannot sell without everyone's agreement. After a separation, a deadlock can lead to a buyout of the share or a forced sale by the court.
Cohabiting partners: how to protect the survivor?
Three levers, to validate with the notary: a will, a joint-ownership agreement, and sometimes an accretion clause allowing the survivor to become sole owner. An SCI can also formalise the split.
Official sources
- Choosing a matrimonial regime, Guichet.lu: guichet.public.lu
- Legal effects of the partnership, Guichet.lu: guichet.public.lu
- Law of 9 July 2004 on partnerships, Legilux: legilux.public.lu
- Bëllegen Akt tax credit, Guichet.lu: guichet.public.lu
- Registration duties, indirect taxation: pfi.public.lu
- Succession without a will, Guichet.lu: guichet.public.lu
- Sale prices by commune, Housing Observatory: logement.public.lu
By David Carmo, founder of CARMO Immobilier. A real estate professional since 2008, board member of the Real Estate Chamber of the Grand Duchy of Luxembourg, member of its disciplinary council, and trainer at the Real Estate Academy.
This article is for information only and does not constitute legal advice. Regulations change and every situation is specific. Before any decision, check the rules in force and consult your notary or an adviser.