Flat-rate rental charges: a fixed amount with no settlement
Under Belgian tenancy law, charges can be billed to the tenant in two distinct ways: monthly provisions with annual settlement, or a flat rate. The flat rate is a fixed and definitive amount, agreed in the lease, that the tenant pays each month in addition to the base rent. Unlike provisions, the flat rate does not give rise to any end-of-year settlement: the landlord cannot claim additional payment, and the tenant cannot demand a refund, regardless of the actual charges.
The choice between flat rate and provisions has important implications for both parties. The flat rate is particularly suited to dwellings with individual heating and separate meters, where common charges are low and predictable. For co-ownership buildings with collective heating, provisions are generally more appropriate as they allow passing on energy price variations. The health index, used for rent indexation, does not automatically apply to the charges flat rate.
Definition and operation of the flat rate
The charges flat rate is a global, fixed and non-revisable amount (unless otherwise stipulated), paid monthly by the tenant to cover all or part of the charges related to the dwelling. Its main characteristics:
- Fixed amount: it does not vary based on actual expenses
- No annual settlement: the landlord is not required to produce a detailed statement of actual charges
- No supporting documents: the tenant cannot demand invoices
- No settlement: neither additional payment nor refund at year’s end
The flat rate generally covers heating charges (if collective), water, common area electricity, cleaning and maintenance of common areas. The lease must clearly specify which items are included in the flat rate.
Note: even under a flat-rate system, the landlord can only include recoverable charges. Asset-related charges (reserve fund, major works, building insurance) cannot be incorporated into the flat rate. Consult the allocation of charges to learn which items are recoverable.
Advantages and disadvantages of the flat rate
| Criterion | Flat rate | Provisions |
|---|---|---|
| Ease of management | High | Low (annual settlement) |
| Transparency | Low | High (supporting documents) |
| Risk for the landlord | Deficit if charges rise | None (actual charges) |
| Risk for the tenant | Surplus if charges are low | None (refund) |
| Settlement obligation | No | Yes (annual) |
| Possibility of dispute | Limited | Broad (supporting documents) |
Advantages for the landlord:
- No settlement or documentation obligation
- Simplified management, no annual settlement
- Predictability of rental income
Advantages for the tenant:
- Fixed and predictable monthly budget
- No year-end surprises
- No additional payment to make
Disadvantages:
- For the landlord: if actual charges exceed the flat rate (rise in energy prices, for example), they bear the deficit
- For the tenant: if actual charges are lower than the flat rate, they pay more than necessary with no possibility of refund
- In case of a sharp energy increase, the flat rate can become a source of disputes
The flat rate is particularly suited to dwellings with individual heating and individual water meters, where common charges are limited to maintenance of common areas. For buildings with collective heating, provisions on charges are generally more appropriate.
How to set the flat-rate amount
To determine a balanced flat-rate amount, the landlord must follow a rigorous method:
- Analyse previous settlements: review the charges settlements from the last 2 or 3 years to calculate an average
- Identify included charges: precisely list the items covered by the flat rate (water, collective heating, common areas, etc.)
- Apply a margin: add 10 to 15% to cover potential tariff increases
- Round up: propose a round amount (in increments of 10 or 25 EUR)
Indicative estimate by property type:
| Property type | Monthly charges flat rate | Includes |
|---|---|---|
| Studio (co-ownership) | 50 - 100 EUR | Water, common areas |
| 1-bedroom apartment | 100 - 150 EUR | Water, common areas, collective heating |
| 2-bedroom apartment | 130 - 200 EUR | Water, common areas, collective heating |
| Individual house | 30 - 80 EUR | Waste tax, maintenance |
The flat-rate amount must be stated separately from the rent in the lease. The law requires that the tenant can clearly distinguish the rent portion from the charges portion, even under a flat-rate system. Rent setting must take the charges amount into account to remain competitive on the rental market.