A sales agreement is concluded at the moment there is mutual consent between vendor and purchaser as to the identity of the asset sold, even if that asset does not yet exist, the transfer of ownership then being deferred, and as to the price. The price must be either already fixed, or determinable by reference to factors that are independent of the will of the parties. Oral sales contracts are possible, as a written contract is not necessary for the sale to bind the parties.
The property transaction is always registered and recorded in the notary's deed. A public notary will present the sale deeds for recording in this register. You would then be expected to pay duty within 15 days of signing.
The general law of contracts is found in civil code in Luxembourg. Under Luxembourg law, nearly all contracts are formed by agreement and without formality. Contracts for the sale of real estate however, require a notarial deed and must be registered and transcribed at a mortgage registry office.
A written contract, or "sales agreement" is used to conclude a buyer/seller agreement, which is also governed by the law. Oral contracts to bind both parties are also accepted. Please note that it can be notoriously difficult to find a home for sale in Luxembourg due to population and demand with "for sale boards" not being widely used.
Property Taxes:
Ad Valorem
The real estate tax (impôt foncier) is levied annually by municipalities. The tax varies according to the type and location of the property, and ranges from approximately 0.81% to almost 8% of the assessed standard value. The transfer tax is 6%. If the object is mortgaged and additional 1-% mortgage recording fee is charged. Capital gain is charged on the inflation's adjusted capital gains.
Real Estate Transfer Tax
A real estate transfer tax is charged on all sales of real property. The standard transfer tax is 6% of the value of the real property. Sales of real property subject to a mortgage are subject to an additional 1% mortgage register recording fee.
Capital Gains
In general, capital gains are considered ordinary business income and are subject to tax at normal rates when they are realized however, certain exceptions to full taxation of gains are allowed. Tax on capital gains may be deferred under certain circumstances if the sales proceeds are reinvested, within a two year period, in similar fixed assets that are used for business purposes in Luxembourg. However, capital gains taxes will always be levied when real property is held less than 2 years. The amount of gain is the difference between the selling price and the purchase price of a property and is adjusted for inflation.
Principal residences are not subject to capital gains tax.