Interest Subsidy in Luxembourg: How Does It Work?

The interest subsidy is a little-known but significant aid for property buyers in Luxembourg. It can represent several thousand euros in savings over the loan term. Here's how it works.

Subsidy Principle

The Luxembourg state pays an annual subsidy corresponding to a portion of the interest paid on your mortgage. This aid aims to:

• Facilitate access to property ownership
• Reduce the actual cost of credit
• Support modest and middle-income households

Eligibility Conditions

To benefit from the subsidy, you must:

1. Buy or build your primary residence in Luxembourg
2. Personally occupy the housing
3. Take out a loan with an approved institution
4. Not exceed certain income thresholds
5. Apply within deadlines (generally 1 year after signing)

Subsidy Calculation

The amount depends on several factors:

• Household income: The more modest the income, the higher the subsidy
• Family composition: Bonus per dependent child
• Loan amount: Capped (approximately €500,000)
• Interest rate: Calculation basis

Indicative Amounts

As an example (2026 situation):

• Household with average income, 2 children: approximately €1,500-3,000/year
• Single first-time buyer: approximately €800-1,500/year
• Subsidy duration: generally 10 years
• Total potential over duration: €10,000-30,000

How to Apply?

1. Finalize your property purchase and loan
2. Gather documents (loan contract, purchase deed, income)
3. Fill out the application form
4. Submit to the Ministry of Housing
5. Wait for notification (several months)

Impact on Total Purchase Cost

Let's take a concrete example:

• Loan of €400,000 over 25 years at 4%
• Total interest: approximately €230,000
• Average subsidy of €2,000/year for 10 years = €20,000
• Actual savings: nearly 9% of total interest

For Sellers

This aid influences the purchasing power of your potential buyers. An eligible buyer can support a slightly larger loan, which can translate to a 5-10% increased purchasing capacity. An argument to know during negotiations.