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Application guide

Documents to prepare before renting in Belgium

The useful documents that reassure an agency without sharing more personal information than needed.

4 min13 May 2026
Keys and documents for a rental

A prepared file does not guarantee a home, but it prevents delay when an agency asks for information.

Keep documents in a clear folder and only send what is relevant for the stage you are in.

Key points

Prepare identity, income, household situation and references if available.

Hide sensitive information that is not requested.

Give files names an agency can understand quickly.

The basic information

Agencies want to know who will rent, how many people will live in the property and when the lease could start.

An ID document, recent income proof and a short introduction are often enough for a first exchange.

  • identity
  • income
  • household
  • preferred move-in date

Income and guarantees

Income can come from salary, self-employed activity, pension or family support. The important part is to explain the situation clearly.

If you have a guarantor, mention it simply without sending every guarantor document in the first message.

Protect your data

Sharing too much personal information too early is not necessary. Mask numbers that are not requested and send sensitive documents only to an identified agency.

A clean file builds trust, but it should remain proportionate.

Frequently asked questions

Should I send my ID during the first contact?

Not always. You can first introduce yourself, then share documents once the agency asks for them.

Is a guarantor mandatory?

No, but it can help if your income is limited or your situation is recent.

Keep your file ready

With Wimmio, you can react quickly when a listing matches your profile.

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Documents to prepare before renting in Belgium | Wimmio