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Ordinary expenses vs. extraordinary expenses

7 February 2026 by
Ordinary expenses vs. extraordinary expenses
La Maison du Divorce, Caroline Simon

Ordinary expenses vs. extraordinary expenses

Understanding the essential distinction to protect your children's interests


The fundamental distinction

In Belgian law, expenses related to children are divided into two distinct categories:

Ordinary expenses

Extraordinary expenses

Regular expenses related to the daily maintenance of the child (e.g.: food, everyday clothing, hygiene products, basic pharmacy, ordinary school expenses, etc.)

Exceptional, necessary or unpredictable expenses that result from accidental or unusual circumstances and that exceed the usual budget allocated for the daily maintenance of the child that served as a basis, where applicable, for determining the maintenance contributions.

Covered by the monthly maintenance contribution

Distributed separately between the parents according to an agreed distribution key or set by the judge

Expenses incurred on a day-to-day basis by each parent

Require prior consultation and agreement (unless in an emergency)

Why is this distinction crucial?

If exceptional situations arise and are likely to lead to unforeseen expenses, the parents will have to intervene again. The determination of each parent's contribution to these exceptional expenses must be specified in the agreements or by judgment. 

The Royal Decree of 22 April 2019: the legal framework

The Royal Decree of 22 April 2019, implemented under article 203bis, §3, paragraph 6, of the Civil Code (introduced by the law of 21 December 2018), exhaustively defines the categories of extraordinary costs and their payment methods.

Fundamental principle : Unless otherwise agreed or decided by a court, extraordinary costs are limited to the categories defined by the Royal Decree. This list is restrictive, which provides legal certainty to both parents.

Category

Concrete examples

Conditions

1° Medical

Specialist doctors, prescribed medications, surgery, orthodontics, glasses, psychology, physiotherapy, etc.

Medical prescription + after mutual/insurance deduction

2° Educational

Green class, expensive uniform, higher education, IT, private lessons, student accommodation, Erasmus

After deduction of scholarships/allocations

3° Development

Nursery (0-3 years), sports/culture/art, driving licence

Licence: only if not free via the school

4° Open clause

Any cost qualified as extraordinary by agreement or by the judge

Agreement of both parents or court decision

 

The mandatory prior consultation 

Strict rule

Except in case of emergency or proven necessity, all extraordinary expenses must be subject to prior consultation and agreement regarding:

·        the opportunity of the expenditure

·        as well as its amount


Payment terms 

§1. Quarterly payment

Unless otherwise agreed or ordered by a court, extraordinary expenses must:

·        Be settled quarterly

·        Be accompanied by a copy of the receipts from the parent requesting payment

·        Be paid within 15 days following the communication of the statement accompanied by the receipts

§2. Obligation of transparency

The parent who receives or benefits from study allowances, scholarships, an intervention from the mutual fund, hospital or supplementary insurance must provide the other parent with:

·        An overview of all amounts received with a copy of the receipts

·        As soon as they have it and at least once a year in September

In summary: 

Rule

Detail

Prior consultation required

Mandatory on the opportunity AND the amount (unless urgent)

Frequency of payment

Quarterly

Supporting documents

Mandatory copies with the statement

Payment deadline

15 days after receipt of the statement

Annual transparency

Overview of reimbursements received, at least in September



This document is not legal advice. For any questions regarding your personal situation, please do not hesitate to contact us.

Our multidisciplinary team is at your disposal to assist you.

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