Rent increase
Rent Increase and Adaptation Calculator in Luxembourg
BetaThis tool is still being refined. Treat results as guidance, not a binding financial assessment.
This tool uses Luxembourg transactions, rules and rates. It can't give a reliable answer for a property in France, Belgium or Germany, so we'd rather say so than show you a number that looks right.
Enter the current monthly base rent, the lease signature date and, if there was one, the date of the last adaptation. The calculator shows when the rent can next be adapted and the highest adapted rent, which is the current rent plus 10 percent. It does not test the rent ceiling.
Adaptation interval
The calculator counts 2 years from the lease signature date, or from the last adaptation date if you enter one.
Highest adapted rent
The calculator shows the highest adapted rent, which is the current rent plus 10 percent, and the maximum increase amount.
Next eligible date
The calculator shows the next eligible date and, while it is not yet reached, the days still to wait.
Rent ceiling not tested
The calculator does not test the rent ceiling. Use the rent ceiling calculator to check a rent against it.
Inputs
Enter the current base rent excluding charges, the lease signature date and the last adaptation date if there was one. The results use only these inputs and the evaluation date.
Source of the rule
The calculator prints the source of the adaptation rule under the results.
Sources and verified statutory dates
- LegiluxVerified on 2026-07-28
- LegiluxVerified on 2026-07-28
General information, not legal, tax, or valuation advice. Confirm your specific situation with a notary, tax advisor, or the competent authority.
Frequently asked questions
How often can the rent be adapted?
The calculator shows the next eligible date 2 years after the lease signature date or the last adaptation date.
Is the rent indexed to inflation?
No index is applied. The calculator works only from the rent and the dates you enter.
Does the calculator allow an increase above the maximum?
No. It never shows a rent above the current rent plus 10 percent.