Free tool

Community fee calculator by participation coefficient

Enter your community budget and your participation coefficient to instantly work out your annual and monthly fee. Free, no sign-up.

It appears on your deed, in hundredths (e.g. 2.35).
Annual fee
Monthly fee

How the fee is calculated

The formula is straightforward: your fee = coefficient (as a decimal) × total budget. The coefficient as a decimal is your percentage divided by 100. If the annual budget is €24,000 and your coefficient is 2.35%, your annual fee is 24,000 × 0.0235 = €564 a year, that is, €47 a month.

The sum of the coefficients of all the flats in the building is always 100. If you want to understand where that number comes from and how it is set, we explain it in detail in the guide to the participation coefficient.

Frequently asked questions

Where do I find my participation coefficient?

On your property deed and in the building's founding deed. It is expressed in hundredths (a percentage).

Can I pay less if my flat is smaller?

Your coefficient already reflects the usable area of your home: the lower the coefficient, the lower the fee. You pay exactly your coefficient times the cost, unless the deed or bylaws set a different split.

Do you manage communities? FixrOS applies the coefficients automatically and generates fees and direct debits with no spreadsheets.

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