We calculate and send the annual indexation letter to your tenant. Objective, automatic and legally correct — you don't have to do a thing.
Once started, you'll never miss an indexation again.
Enter the contract details once via our form. That's all.
On every contract anniversary, we automatically calculate using the official health index from Statbel.
The indexation letter is sent professionally to your tenant. You receive a copy.
Landlords across Belgium trust us for their annual indexation.
No more awkward conversations with your tenant. The indexation letter comes from a neutral third party — business-like, correct and without emotion.
Once your contract is registered, our system automatically calculates the new rent every year. You don't have to think about it.
We always use the official health index from Statbel. The calculation follows the exact legal formula.
For €30 a year your rent stays in line with the index. What that yields depends on your lease — work it out with our free calculator.
We send the indexation letter by email to your tenant, with you automatically in copy. Prefer to send it yourself? That's possible too.
Flanders, Brussels and Wallonia, including EPC rules.
A residential lease in the Flemish Region, started at €700 in 2015. Correctly indexed every year using the health index.
Based on the real health index 2015–2026. Your result depends on your lease.
One fixed price per rental contract, per year. No hidden fees.
For every contract
per year, per contract
Price incl. 21% VAT
Track all your affairs in one place.

Rent doesn’t index itself. You have to request it yourself every year, and legally you can only go back three months. Miss a year? That increase is gone for good.
With us, that changes. We calculate and send your indexation automatically, on time, every year. Your tenant’s income is indexed too — salary, pension or benefits — because everything gets more expensive. So do your costs. A correct indexation is simply fair, and from now on effortless.
Indexing seems simple, but small errors genuinely cost you money.
You can only go back three months; the rest is permanently lost.
It's always the month before the anniversary, not the anniversary itself.
The anniversary follows the entry into force; the starting index depends on region and contract date.
It's the health index, not the consumer price index and not the smoothed index.
For affected contracts in Flanders and Brussels it is legally required; without it, your indexation is contestable.

Every year we automatically apply the right formula, the right index figures and the right regional rules, and your tenant receives the result in a clear indexation letter. You don't have to calculate anything, look up anything or remember anything.
Submit your contract and never miss an indexation.