Belgium rent indexation
Calculate the indexed rent with the health index, as allowed by a Belgian lease.
How it works
New rent = base rent × new index / starting index. Health index figures are published monthly by Statbel; use the same base year for both.
Results are for guidance only and do not replace professional advice.
Worked example
With the default values:
- Base rent (in the lease)850
- Starting index (month before signing)128.50
- New index (month before the lease anniversary)136.20
you get:
- New rent€900.93
- Increase per month€50.93
- Increase5.99 %
Frequently asked questions
How does the “Belgium rent indexation” tool work?
New rent = base rent × new index / starting index. Health index figures are published monthly by Statbel; use the same base year for both.
What do I need to enter?
Just fill in: base rent, starting index, new index. The result updates as you type.
Can you give an example?
Base rent (in the lease): 850; Starting index (month before signing): 128.50; New index (month before the lease anniversary): 136.20 → New rent: €900.93; Increase per month: €50.93.
Is this calculator free, and is my data private?
Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.