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Positive cash flow in rental property in Belgium: is it possible

How to achieve positive cash flow in rental property in Belgium: calculation, conditions, strategies and concrete examples by region.

EH Par Edouard Hennin 2 min de lecture Mis a jour le May 28, 2026
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Definition and calculation of property cash flow

Cash flow is the difference between rental income and all expenses related to the property. Positive cash flow means the property pays for itself and generates a monthly profit.

Calculation formula

ItemMonthly
Gross rent+EUR 900
Mortgage payment-EUR 650
Property tax (monthly equivalent)-EUR 100
Non-recoverable charges-EUR 50
Vacancy provision (5 %)-EUR 45
Maintenance provision-EUR 30
Net cash flow+EUR 25

This calculation must be realistic: include vacancy, maintenance and non-recoverable charges. Beginner investors often forget the property tax and management fees.

Conditions for positive cash flow in Belgium

The purchase price is decisive

RegionAverage apt. priceAverage rentGross yield
BrusselsEUR 250,000EUR 9504.6 %
Wallonia (city)EUR 140,000EUR 7006.0 %
Flanders (city)EUR 220,000EUR 8504.6 %
Wallonia (rural)EUR 100,000EUR 5506.6 %

The average rental yield by city shows significant disparities. Wallonia offers the best chances of positive cash flow thanks to low prices.

Interest rate and down payment

The higher the down payment, the more positive the cash flow. The leverage effect is maximised when the gross yield exceeds the total cost of credit.

Strategies for achieving positive cash flow

Co-tenancy

Co-tenancy allows renting a property for 30 to 50 % more than standard letting. A 3-bedroom apartment rented at EUR 900 in standard letting can bring in EUR 1,350 through co-tenancy.

Multi-unit buildings

The multi-unit building offers a lower price per sqm and shared charges. It is the most reliable strategy for generating positive cash flow.

Buying below market

Properties to renovate, inherited properties and judicial sales allow buying 15 to 25 % below market price. After renovation, the yield is mechanically higher.

[!tip] Practical tip Always calculate cash flow over 12 months, not a single month. Include 1 month of vacancy and 1 month of exceptional maintenance to be realistic.

Verdict: is positive cash flow possible in Belgium

Yes, but not everywhere and not with any strategy. Favourable conditions: a low purchase price (Wallonia, properties to renovate), a gross yield above 6 %, a high-yield strategy (co-tenancy, multi-unit building) and a minimum 20 % down payment.

To manage your properties efficiently, use a rental management software and create your leases online. Consult the rental investment guide to go further.

Verifie & redige par
Edouard Hennin
Real estate expert since 2018, Edouard supports Belgian landlords and tenants through their rental processes. He oversees the writing of every guide in collaboration with the legal team and ensures all content reflects current legislation in Brussels, Wallonia and Flanders.
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Publie May 19, 2026
Derniere verification May 28, 2026
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