Buying Guide

The costs behind a second property in Luxembourg

The arithmetic of a second purchase is not the first one with a bigger number. Two of the mechanisms that make an owner-occupied purchase affordable here do not apply at all, and the financing rules change with them.

The credit that does not apply

The Bëllegen Akt is conditional on occupying the property personally and effectively as your principal residence, from entry into possession or within two years. A second home, a holiday property or a buy-to-let acquisition does not meet that condition.

So the duties apply in full: 7% of the price, being 6% registration and 1% transcription. On a €600,000 property that is €42,000 payable rather than absorbed, plus regulated notary emoluments of roughly 1% to 1.5% with VAT, disbursements and the mortgage deed. Total acquisition costs for an investor commonly land materially above the 8% to 13% range typical for an owner-occupier claiming the credit.

One nuance worth knowing: because the credit is personal and lifelong, an unused balance from a previous purchase remains available for a future principal residence. It does not become available for a second home.

The financing, which tightens

Under CSSF Regulation 20-08 of 3 December 2020, the general loan-to-value principle is 80%. In practice lenders differentiate: first-time buyers of a principal residence can reach 100% of the price, other principal-residence purchases are generally capped at 90%, and buy-to-let is at 80%.

That means a minimum 20% deposit on the price, plus the full acquisition costs in cash, since those are normally excluded from the financing. On a €600,000 investment property the day-one cash requirement is therefore substantially higher than most first-time calculations assume.

The debt-service assessment also compounds. Your existing mortgage counts, and the stress test is applied to the whole position rather than to the new loan alone. A household comfortably within the ratios on one property can fall outside them on two.

The 3% VAT question

The super-reduced housing VAT rate of 3% applies to qualifying works and construction connected with a principal residence, subject to conditions and a cap on the tax advantage. For a new build sold in VEFA, registration duties attach only to the land element while the construction falls under housing VAT, with the advantage capped at €50,000.

Where the property is not your principal residence, that regime is not automatically available, and the standard rate changes both a renovation budget and the total cost of a VEFA purchase. Establish the position with the tax administration or your notary before converting a builder's quotation into an offer, because the difference between rates on a substantial renovation is not marginal.

The running costs, which are the same but land differently

In a copropriété the ordinary charges, the compulsory fonds de travaux contribution and any special calls for funds fall on the owner in proportion to millièmes, whoever occupies the property. Since 1 August 2023 the works fund contribution has a legal floor per square metre of energy reference surface, graded by the building's insulation class.

For an owner-occupier those costs are part of living somewhere. For an investor they are a deduction from yield, and they are not fully recoverable from a tenant: the monthly advance a tenant pays covers running costs, while major works voted by the assembly remain the owner's.

Add buildings-related insurance, maintenance inside the apartment, periods of vacancy between tenancies, and the cost of letting itself. Since 1 August 2024 agency commission on a residential letting is shared equally between landlord and tenant, so the owner's half is a recurring transaction cost at every turnover.

What the rent can legally be

This is the constraint investors from other markets most often miss. Luxembourg caps residential rent: the annual rent may not exceed 5% of the capital invested in the dwelling, revalued. The 2024 reform kept that rule, abolished the luxury-dwelling exemption that had allowed higher-end properties to escape it, and clarified that where a dwelling is let to several tenants, whether under a single joint lease or several individual leases, the sum of the rents is subject to the same ceiling.

A furnished letting may carry a legitimate rent supplement for the furniture on top of the capped figure. Rent revisions are limited to a biennial ceiling of 10% at each adaptation and must be notified by registered letter with a month's notice.

The practical consequence: a yield calculated by taking the local market rent and dividing by the purchase price may not be achievable on the property you are actually buying.

Second home rather than investment

Where the second property is for your own occasional use, the picture is different again. There is no rental income to offset the costs, the duties are payable in full, the financing is generally capped at 80%, and the co-ownership obligations continue whether or not you are there.

The honest test is whether the property earns its place as a use rather than as an asset. A holiday property used six weeks a year carries twelve months of charges, twelve months of works fund contributions and a full share of any special call, and none of that is offset by anything.

Before committing

Four things to establish in writing, in this order: your actual loan-to-value ceiling from the specific bank on the specific property; the full duty position with no Bëllegen Akt applied; the rent ceiling under the 5% rule if the property is to be let; and the state of the building's works fund and any works already voted.

An accepted offer leads to a compromis de vente, which is binding. Where financing is tighter and the credit does not apply, the financing condition in the compromis matters more rather than less, and it should be drafted by the notary with a realistic deadline, amount and rate.

Three questions we are asked

Can I claim the Bëllegen Akt later if I move in? The credit is applied by the notary at the deed and depends on the property being your principal residence, with occupation from entry into possession or within two years. Anything outside that pattern is a question for your notary and the tax administration before you sign.

Is the rent cap actually enforced? Not automatically. The route is the commune's commission des loyers, free to petition, whose opinion is not binding but is frequently followed. Since the 2024 reform the lease must expressly mention that right.

Does a poor energy class matter more for an investment? Yes, on two fronts. It narrows the financing available, since F to H classifications typically trigger stricter analysis with works folded into the plan, and it raises the building's minimum works fund contribution, which is graded by insulation class.

Modelling it properly before you commit

Build the case on three separate sheets rather than one. The first is the day-one cash requirement: 20% of the price as deposit under an 80% buy-to-let ceiling, plus duties of 7% with no credit applied, plus notary emoluments with VAT, disbursements and the mortgage deed. The second is the annual running position: mortgage service, ordinary charges, the compulsory works fund contribution, insurance, maintenance inside the apartment, a vacancy allowance and your half of the letting commission at each turnover. The third is the liability picture from the building's assembly minutes and works fund balance.

Only then compare it against the achievable rent, tested against the 5% of invested capital ceiling rather than against local asking rents. That sequence produces a number that survives contact with the first annual charges reconciliation, which is where optimistic models tend to fail.