Sell a property in Luxembourg, buy in Germany

Article L-0061 · 22.09.2026 · 6 min read · Joé Christian Ewrard

What makes a cross-border move challenging

Anyone selling a property in Luxembourg and subsequently buying in Germany is not simply making two separate decisions. Sale proceeds, the existing loan, purchase price, ancillary purchase costs and handover dates are directly linked.

The greatest concern is often: What happens if the buyer in Luxembourg pulls out after the German purchase agreement has already been signed? The opposite question is equally worrying: What if I sell first and then cannot find a suitable house? Neither scenario can be ruled out entirely. However, the risks can be identified and better mitigated through contractual and financial arrangements.

A coordinated process plan is crucial. This should cover more than just viewings and notary appointments. Financing commitments, contractual conditions, the repayment of existing loans, possible temporary accommodation and the handover of both properties must also be taken into account.

A common mistake is to base calculations solely on the expected sale price. What matters, however, is the amount that actually remains available after repaying existing liabilities, covering selling expenses, any taxes and other obligations.

Why the Luxembourg Compromis requires particular attention

In Luxembourg, the Compromis de vente is not a non-binding reservation. Once the seller and buyer have agreed on the property and price and signed the document, a binding contract may already be in place. The subsequent notarial deed makes the agreement effective in particular against third parties and enables the necessary registration procedures. Withdrawing on the spur of the moment is therefore generally not possible without consequences. The government information portal [Guichet.lu on the Compromis de vente](https://guichet.public.lu/fr/citoyens/logement/acquisition/aspects-contractuels/compromis-vente.html) also points this out.

This is important for sellers who are looking for a property in Germany at the same time. A verbal statement regarding the buyer’s loan is not a sufficiently secure basis for the seller’s own purchase. The Compromis may include conditions precedent, for example regarding financing. The content, required evidence and deadlines must be clearly defined. Whether an additional condition relating to the seller’s subsequent purchase would be advisable and enforceable should be clarified with the Luxembourg notary or a lawyer before signing.

A contractual penalty may also be agreed. It does not automatically protect against every loss and is no substitute for careful review. Sellers should therefore understand when the buyer is released from the contract, which documents the buyer must provide and when the condition is deemed to have been met or failed.

Germany has a different contractual framework. The property purchase agreement must be notarised. A reservation agreement, purchase offer, financing confirmation and notarial agreement must therefore not be considered equivalent to the Luxembourg Compromis. Anyone who assumes that a familiar-sounding term means the same thing in both countries risks making a costly mistake.

Sell first or buy first

Selling before buying usually provides greater financial clarity. The amount of equity actually available is known. The bank has to work with fewer assumptions. However, this creates the risk that no suitable house in Germany has been found by the handover date.

Buying before selling offers greater housing security. However, it may require interim financing. In this arrangement, the bank temporarily provides capital that is still tied up in the Luxembourg property. Whether it does so and what value it assigns depends on the property, the progress of the sale, the buyer’s creditworthiness and the bank’s internal policies. An asking price does not yet constitute available sale proceeds.

A typical case from the border region: A family finds a suitable house in Eifelkreis Bitburg-Prüm while their apartment in Luxemburg is only just being marketed. The new house also requires modernisation work. If all the expected equity is already allocated to the purchase, there may later be no buffer for work, the move or a delayed purchase price payment.

One alternative may be a coordinated transition. Possible options include a later transfer of possession in Luxemburg, a flexible move-in date in Germany or limited temporary accommodation. Such arrangements must be expressly agreed. Verbal agreements are not sufficient for two interdependent property transactions.

How to coordinate the sale proceeds and financing securely

Before starting the search in Germany, a reliable liquidity calculation should be prepared. The starting point is not the desired price for the Luxembourg property, but a well-founded assessment of its market value. The outstanding loan, any early repayment costs, selling expenses and a contingency buffer are then deducted from this amount.

The financing bank then assesses the German property independently. It may value the property differently for lending purposes than the buyer, seller or estate agent. This is particularly evident with older houses, unusual plots, outbuildings or an apparent need for modernisation.

In the Eifel, Trier-Saarburg and the Vulkaneifel, suitable properties are often not located in uniform new-build developments. The year of construction, heating technology, utility connections, internet connectivity, flood or heavy rainfall risks and the approved use of extensions can affect the availability of financing. These points should be clarified before the final financing decision is made.

If the Luxembourg property is still subject to a mortgage, its redemption must be coordinated with the bank and the notary. The sale price will then not necessarily be paid in full and immediately into the seller’s freely accessible account. For the German purchase, it is therefore crucial to know when each amount will actually be available for use.

In Germany, the purchase price is generally paid only after the notary has issued the notice that payment is due. The usual requirements include registering a priority notice in the land register and ensuring the discharge of any encumbrances that are not being assumed. The [Bundesnotarkammer explains when the purchase price becomes due](https://www.notar.de/themen/immobilien/kaufpreisfaelligkeit). The dates in both countries should therefore be planned not only around the desired moving date, but also around the actual payment processes.

Which documents are needed at an early stage

Depending on the property, the sale in Luxemburg requires ownership and cadastral documents, existing contracts, information on encumbrances, construction documents and evidence of approved alterations. For condominium ownership, documents from the owners’ association are also required. If documents are missing, queries often arise precisely when a buyer is already waiting.

The energy performance certificate should also be checked in good time. When ownership changes, a valid energy performance certificate is generally required unless a statutory exemption applies. Prospective buyers must be able to inspect it, and the original is passed on when ownership changes. Further details are provided by [Guichet.lu on the energy performance certificate](https://guichet.public.lu/de/citoyens/logement/acquisition/performances-energie/demande-passeport-energetique.html).

When buying in Germany, buyers should not only review the property particulars and floor plan. Relevant documents include the land register entries, building encumbrances, site development, building permits and energy performance certificate, as well as, for condominium ownership, the declaration of division, resolutions and financial documents of the owners’ association. The documents required in each individual case depend on the property.

Particular caution is required where alterations have been made. A converted attic, a self-contained apartment or an outbuilding may be perfectly usable in practice without clear evidence that its use has been approved. Before buying, it should be established whether the property’s actual condition matches the documentation.

Which taxes and ancillary costs need to be checked

The location of the property and the place of tax residence must be considered separately. When selling a property in Luxembourg, the type of use, holding period, previous subsidies and personal circumstances may be relevant for tax purposes. The sale of a recognised principal residence generally receives favourable income tax treatment in Luxembourg, but must nevertheless be declared. The requirements are explained by the [Luxembourg tax authorities via Guichet.lu](https://guichet.public.lu/de/citoyens/fiscalite/immobilier/achat-vente-donation/declaration-vente.html).

When buying in Germany, additional acquisition costs are incurred on top of the purchase price. These include, in particular, property transfer tax as well as notary and land registry fees. Depending on the brokerage arrangement, an estate agent’s commission may also be payable. These amounts must be paid from available equity or through appropriately arranged financing.

Cross-border commuters should also clarify how changing their place of residence will affect their tax liability, insurance, family benefits and, where applicable, recognition of their principal residence. The notary appointment or handover of the keys alone is not decisive. The actual place of residence, place of employment and personal circumstances may also be relevant.

A binding tax assessment should be handled by an adviser familiar with both Germany and Luxembourg. Questions relating to contract law should be clarified with the notaries involved or a lawyer. The estate agent can coordinate the process and prepare documents, but cannot replace this advice.

How to create a reliable timeline

The process begins with three dates: the earliest possible move-out date in Luxembourg, the desired move-in date in Germany and the date by which the equity must be available. Financing, marketing, contractual terms and handovers are then planned backwards from these dates.

Before entering into a commitment in Germany, it should be clear whether the purchase will remain affordable even if the sale in Luxembourg takes place later. Conversely, before signing the Compromis, it should be clear where the family can live if the search in Germany takes longer.

In practice, central coordination has proven effective. The estate agent, bank and notaries do not need to perform the same role. However, they should work on the basis of the same assumptions. If the bank assumes that a sale has already been secured, the Compromis is still subject to an outstanding condition and the German seller expects payment on a fixed date, a dangerous gap arises.

A well-structured timeline therefore includes decision points. Before each signature, checks are made to determine which obligation is already being entered into, which condition remains outstanding and which payment will be triggered next. This turns a difficult-to-manage dual transaction into a sequence of controllable steps.

Begin with a joint assessment of the sale value, outstanding debt, available equity, financing framework and desired handover date. PRIOCASA can coordinate the property in Luxembourg and the search in the German border region; you can then address individual legal and tax questions specifically with a notary, lawyer and tax adviser.

Frequently Asked Questions

Can I buy in Germany before my property in Luxembourg has been sold?

Yes, provided that financing is also definitively secured for this transitional period. The key factors are whether the bank will provide bridging finance and what proceeds it conservatively estimates. A mere intention to sell is not sufficient as a reliable basis for financing.

Can a buyer in Luxembourg simply withdraw after signing the Compromis?

As a rule, not without further consideration, as the signed Compromis may already be binding. Whether a condition precedent applies or other rights exist depends on the contract. This should be reviewed by a Luxembourg notary or lawyer.

Do I have to pay tax on the sale of my main residence in Luxembourg?

The sale of a recognised main residence is generally exempt from income tax in Luxembourg, but must still be declared. Whether the requirements are met depends on the individual case. Have this clarified by a tax adviser with cross-border experience.

Which notary coordinates both property transactions?

The sale in Luxembourg is usually handled by a notary responsible there, while the purchase in Germany is notarised in accordance with German law. It should not be assumed that a single party will provide comprehensive legal representation. It is important to coordinate the exchange of dates, conditions and payment information.

What is particularly important when buying a house near the Luxembourg border?

In addition to the property itself, travel times, transport links, internet access and ongoing modernisation requirements are important. In Eifelkreis Bitburg-Prüm, around Trier, in Trier-Saarburg and in Vulkaneifel, the specific property situation, approved uses and local natural hazards should also be assessed for the individual property.

Topics: selling property in Luxembourg, buying a house in Germany, Luxembourg border region, estate agents in Eifel, property in Trier, Compromis de vente, cross-border property purchase

Responsible for this post: Joé Christian Ewrard — Owner & Broker IHK, PRIOCASA Immobilien & Financial services. Last updated: 22.09.2026. The draft was created with the support of artificial intelligence and was reviewed and approved before publication (AI Transparency). This post does not replace legal or tax advice; for individual questions, please contact a notary, lawyer, or tax advisor.

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