The tool in 30 seconds
Our lease notice letter generator produces a letter compliant with Belgian law in under 5 minutes. The letter is ready to print or send by electronic registered mail. The notice period is calculated automatically based on your situation and region.
Free, no sign-up required, compliant with regional rules (Wallonia, Brussels, Flanders). Accepted by landlords and recognised by Belgian courts.
What the tool does
Full letter generation
The tool automatically produces:
- A formatted letter meeting Belgian standards.
- Header with both parties’ contact details.
- Body text compliant with the lease agreement and the Civil Code.
- Automatic calculation of the date the lease ends.
- Statement of the reason for termination (where legally required).
- Signature and date.
Customisation based on your situation
Whether you are a tenant or a landlord, and depending on the lease type (primary residence, short-term, furnished, student, commercial), the tool adapts the letter. The notice period varies considerably: 3 months on the tenant’s side for a 9-year lease, 6 months on the landlord’s side in most cases.
Sending by registered mail
After generation, you have 3 options:
- Download as PDF and post it yourself.
- Send directly by electronic registered mail via our partner.
- Transmit via the BailBelgique tenant/landlord portal.
Data to prepare
Lease information
- Date the lease agreement was signed.
- Address of the rented property.
- Lease type (primary residence, short-term, furnished, student).
- Full identity of both parties.
Your situation
- Are you the tenant or the landlord?
- Reason for giving notice (personal change, professional move, sale, personal occupation, etc.).
- Desired end date.
- Region where the property is located (different regional rules apply).
Optional attachments
- Supporting documents if a specific reason applies (job transfer, medical certificate, etc.).
- Copy of the original lease (optional but recommended).
5 steps to use the tool
Step 1: Choose your role
Indicate whether you are giving notice as a tenant or as a landlord. The rules differ significantly depending on the role.
Step 2: Select the lease type
Primary residence (9-year lease), short-term, furnished, student, shared housing, or commercial. The tool applies the correct rules automatically.
Step 3: Enter the desired departure date
The tool automatically calculates the deadline for sending the notice based on the legal notice period. For example, to leave on 30 September, the notice must be received by 30 June (3 months).
Step 4: Fill in your personal details
Addresses, names, reason (if applicable). The tool validates each field to prevent omissions or formal errors.
Step 5: Download or send
PDF ready to print. Option to send by electronic registered mail directly from the tool. A timestamped record of the dispatch is kept as legal proof.
Why written notice is mandatory
Legal value
A notice letter is the only legally valid way to notify the end of a lease. A simple text message, unsigned email or phone call has no legal standing in the event of a dispute.
Belgian legal framework
Belgian civil law requires a signed, dated written document sent with proof of receipt. Regional decrees (Wallonia Decree of 15 March 2018, Brussels Ordinance of 27 July 2017, Flemish Woninghuurdecreet of 9 November 2018) set out the specific conditions for each region.
Proof in a dispute
If there is a disagreement over the end date, the letter is the decisive evidence. The date of receipt (acknowledgement) determines the start of the notice period. Without a letter, it is impossible to prove good faith before the Justice of the Peace.
Notice periods you need to know
Tenant (9-year primary residence lease)
A 9-year lease allows the tenant to terminate the lease at any time with 3 months’ notice. Early termination requires the tenant to pay compensation if they leave within the first 3 years: 3 months’ rent in year 1, 2 months in year 2, 1 month in year 3. No compensation is owed after 3 years.
Landlord (9-year primary residence lease)
Generally 6 months’ notice. The landlord must justify the termination with a legal ground: personal occupation of the property, major renovation works, or end of a three-year period with a reason for non-renewal. Compensation is due if the stated reason is not fulfilled after the lease ends.
Short-term lease (under 3 years)
Notice rules for short-term leases are stricter. Terminating such a lease before its natural expiry requires particular attention. The notice period depends on the specific type and may be reduced to 1-3 months depending on the contractual clauses.
Student lease
Special rules apply, with the notice period generally aligned with the academic calendar.
Furnished lease
Rules are similar to those for primary residence leases, depending on the intended use of the property.
Common mistakes to avoid
Sending by ordinary post
Notice sent by ordinary post has no evidential value. Always use registered mail with acknowledgement of receipt, hand-deliver in person against signature, or use eIDAS electronic registered mail. Without traceability, it is impossible to prove the date of receipt in the event of a dispute. This step also matters when planning the exit inventory (final check-out inspection).
Miscalculating the date
The notice period starts from the date of receipt, not the date of posting. Many tenants wrongly assume the date of sending is what counts. The tool corrects this calculation automatically.
Forgetting the reason (landlord side)
A landlord is legally required to state the reason (personal occupation, renovation works, end of three-year period). A notice without a stated reason is null and may lead to compensation claims.
Overlooking compensation
A tenant who leaves within the first 3 years owes compensation even if the notice period is correctly observed. Many tenants overlook this and are caught off guard.
Confusing with employment resignation
Be careful not to confuse a lease notice with an employment resignation (e.g. a student employment contract). Our tool covers residential and commercial leases only, not employment contracts.
Suitable use cases
- Tenant of a 9-year primary residence lease.
- Tenant of a short-term lease (under 3 years).
- Tenant of a furnished or student lease.
- Landlord terminating a lease (with a legal ground).
- Co-tenant leaving (with a lease amendment in parallel).
- Simple commercial lease.
The tool handles regional variations automatically. For complex cases (disputes, social housing SLRB/SWL/VMSW), consult a lawyer or our dedicated section.
Complementary tools
The notice generator is often used alongside:
- Property inventory generator: prepare the exit inventory as soon as notice is given.
- Rental yield simulator: forecast returns (landlord side).
- Registered letter: send by electronic registered mail.
Together, these tools cover the entire end-of-lease process with confidence.