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Rental Deposit in Belgium: Complete Regional Comparison 2026

Amounts, forms, deadlines and recourse: everything tenants and landlords need to know about rental deposits in Wallonia, Brussels and Flanders in 2026.

Par Mervyn Jespers

Rental deposits in Belgium do not follow a single rule: since the regionalisation of tenancy law, each region sets its own caps, accepted forms and refund deadlines. Wallonia and Brussels cap deposits at 2 months' rent (excluding charges) for a blocked account, whilst Flanders allows up to 3 months regardless of the chosen mechanism. This guide provides a region-by-region overview for 2026, so that tenants and landlords know exactly where they stand.

What is the maximum rental deposit amount by region?

The legal cap is always expressed in months of rent excluding charges, and it varies by region and the form chosen.

In Wallonia (decree of 15 March 2018), the amount cannot exceed 2 months' rent when the deposit is placed in an individual blocked account in the tenant's name. This 2-month cap has been in force since 1 June 2023. For a bank guarantee (where the bank guarantees the landlord), the cap rises to 3 months, with progressive repayment by the tenant.

In Brussels (ordinance of 27 July 2017 and the Brussels Housing Code), since November 2024, the rental deposit amount may in no case exceed 2 months' rent excluding charges, whatever form is chosen. A landlord who demands more would be in breach of the law.

In Flanders (Vlaams Woninghuurdecreet of 9 November 2018, in force since 1 January 2019), the cap is uniformly set at 3 months' rent, regardless of the mechanism chosen: blocked account, bank guarantee or other approved mechanism.

One rule applies everywhere: service charges are never included in the calculation of the cap. Any amount demanded above the legal cap is considered abusive, and the tenant may lawfully refuse it.

What forms of rental deposit are accepted in Belgium?

Three main forms are recognised in all three regions, with a few local variations.

  1. The blocked bank account: the tenant opens an individual account in their name at a bank, into which they deposit the sum. This account remains inaccessible until the end of the tenancy. This is the most common form in practice. The interest accrued on this account benefits the tenant and is returned to them along with the capital at the end of the tenancy.

  2. The bank guarantee: the tenant enters into an agreement with their bank, which guarantees the landlord. The tenant then repays the bank in monthly instalments, avoiding the need to block a large sum in one go. This option can reach 3 months' rent in all regions.

  3. Public assistance mechanisms (CPAS / Housing Funds): this avenue is crucial for tenants who cannot raise the necessary sum.

  • In Brussels, the BRUGAL Fund (Brussels Capital Region Housing Fund) lends the deposit amount. In return, the tenant pays a monthly contribution calculated according to household income. If even this monthly repayment is not possible, the tenant can apply to their local CPAS for a guarantee commitment to BRUGAL. The CPAS intervention does not appear on the form given to the landlord.

  • In Wallonia, the Société Wallonne du Crédit Social (SWCS) and the Walloon Housing Fund offer interest-free loans to provide the deposit. The Walloon CPAS can also advance the deposit or issue a guarantee, subject to income conditions.

  • In Flanders, the Vlaams Woningfonds offers a similar zero-interest loan mechanism, subject to income conditions.

In all three cases, assistance via CPAS or regional fund is subject to income conditions and must be requested from the competent body in the municipality or region concerned.

What is the legal deadline for refunding the rental deposit?

The refund takes place at the end of the tenancy, once the check-out inventory has been completed and validated. The mechanism is the same in all three regions: the landlord and tenant sign a written release agreement, which is then presented to the bank or depositary institution.

  • In Brussels, for tenancies current since 1 November 2024 or signed since that date, the landlord has a maximum of 2 months after the return of the keys to refund the deposit.
  • In Wallonia, the legal refund deadline is also 2 months from the effective end of the tenancy.
  • In Flanders, the refund is expected within the agreed timeframe, generally within weeks following the check-out inventory, after a signed agreement by both parties.

In practice, if no damage is found, the amicable release often occurs within 4 to 6 weeks after the inventory. In case of dispute, the refund may be suspended until the conflict is resolved.

The rental deposit may also be released by court order, during or at the end of the tenancy, when the parties cannot reach agreement.

In what cases can the landlord retain the deposit?

The landlord may only retain all or part of the deposit to cover real and documented breaches by the tenant:

  1. Unpaid rent: any monthly rent or charges payment that has not been paid may be deducted from the deposit.
  2. Damage to the property: damage caused to the dwelling beyond normal wear and tear observed during the check-out inventory may justify a retention. Normal wear and tear due to time can never be charged to the tenant.
  3. Repair costs linked to breaches documented in the check-out inventory.

The landlord cannot retain the deposit unilaterally and at their discretion: they must justify each amount withheld. If damage is found but contested, the tenant may also request an expert assessment. In extreme cases, if the damage exceeds the deposit amount, the tenant may even be asked to pay additional compensation.

Important: written agreement from both parties is mandatory to release the deposit blocked at the bank. Without agreement, only a court order can release the funds.

What recourse does the tenant have if the deposit is not refunded?

If the landlord refuses to sign the release agreement or does not respond within the deadlines, the tenant has several options:

  1. Send a formal notice by registered post: this is the essential first step. The letter details the amounts claimed and sets a response deadline (typically 15 days).

  2. Bring the matter before the Justice of the Peace where the property is located: if no amicable solution is found, the tenant files a petition at the clerk's office of the Justice of the Peace. Representation by a lawyer is not mandatory before the Justice of the Peace. The tenant may simultaneously request the release of the deposit and an expert judicial assessment of rental damage. If the judge rules in favour of the tenant, they can present themselves directly to the bank with the judgment to recover the funds.

  3. Request the appointment of a joint expert: landlord and tenant can appoint an expert to establish a contradictory report. Failing agreement on the choice of expert, the Justice of the Peace will appoint one.

In cases brought before the Justice of the Peace, it takes on average 2 to 6 months depending on the canton to obtain a decision.

To learn more about your regional rights regarding tenancy, consult our article on Belgian rental law and its regional specificities.

TectoPass: how to reassure a landlord without affecting the legal deposit?

The rental deposit remains a legal obligation regulated by each region: no tool, no score, no platform can substitute for it. But the reality of the Belgian market is clear: according to the Federia/CIB 2025 Barometer, the average rent for a new tenancy reaches €1,346 in Brussels and €879 in Wallonia. And according to Immoweb (2024), an average of 34 tenant candidates compete for a single available property. In this context of extreme tension, the perceived reliability of the candidate can make all the difference.

This is where TectoPass comes in, the rental passport offered by ImmoTecto. It is an official PDF document, portable, instantly accessible via QR code, which presents to the landlord or agency the tenant's Tecto Score: a reliability score calculated solely from observed rent payments, never from income, savings, age or nationality.

The Tecto Score is available at €0 for the tenant, with no subscription. It relies on three cumulative collection channels: Open Banking connection (PSD2, read-only), import of bank statements (PDF/CSV, analysed by AI), and bank screenshots (also analysed by our AI). The most robust level, called "Certified", combines file import and Open Banking.

In concrete terms, a tenant who presents a TectoPass with an "Excellent" or "Very Good" score gives the landlord a clear and verifiable reading of their actual payment behaviour, without the landlord needing to log into a platform or create an account. The tenant chooses section by section what they share: the landlord only sees what has been expressly consented to.

This proactive transparency can enable the tenant to stand out in an application, and potentially to initiate a dialogue on the terms of the tenancy, including the deposit. It in no way replaces the legal deposit, and does not constitute a financial guarantee: it is proof of payment behaviour, nothing more, nothing less. The Tecto Score is never presented as the sole selection criterion; the tenant benefits from a right of explanation, challenge and human review.

For landlords, ImmoTecto offers tailored packages to consult TectoPass from €59.99 as a one-off payment. Discover our pricing and how it works.

FAQ

Is the rental deposit mandatory in Belgium?

No, no law formally requires it. But in practice, almost all landlords demand one before signing the tenancy agreement. If the deposit is not provided, the landlord may lawfully refuse to sign the contract. It is therefore unavoidable in the vast majority of situations.

Can a landlord demand more than 2 months in Brussels or Wallonia?

No. Since November 2024 in Brussels and since June 2023 in Wallonia, the cap is strictly set at 2 months' rent excluding charges for a blocked account. Any higher amount is illegal and may be refused by the tenant. In case of abuse, the tenant can bring the matter before the Justice of the Peace.

I don't have the funds to provide the deposit: what can I do?

Several options exist depending on the region. In Brussels, the BRUGAL fund can lend the entire amount with modest monthly repayment (between €5 and €30/month). In Wallonia and Flanders, the SWCS, the Vlaams Woningfonds or the local CPAS can intervene subject to income conditions. The bank guarantee with staggered repayment (repayment over the duration of the tenancy) is also accessible via several banks.

What does the rental deposit cover and what doesn't it cover?

It covers unpaid rent and rental damage found at the check-out inventory. It does not cover normal wear and tear of the dwelling, which is the landlord's responsibility. The landlord must justify each amount withheld: an arbitrary retention without proof can be challenged before the Justice of the Peace.

Can TectoPass replace the rental deposit?

No, and this is important to clarify. TectoPass is a payment reliability passport: it enables the tenant to demonstrate their actual payment behaviour, and can help strengthen their application when facing dozens of competitors. It does not constitute a financial guarantee and in no way substitutes for the legal rental deposit obligations defined by each region.

Sources

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Rental Deposit Belgium: Regional Guide 2026 | IMMOTECTO