Belgian applications turn on one choice — language. Write the one-page lettre de motivation or sollicitatiebrief in the language of the advertisement. This guide covers conventions, structure, an annotated template, common mistakes and FAQs.
A covering letter (lettre de motivation in French, sollicitatiebrief in Dutch) is expected for professional roles across Belgium and is sent as a separate document with your CV. One page is the norm, and the tone is formal but not stiff: 'Cher Monsieur / Chère Madame' or 'Geachte heer / Mevrouw' when you have a name, a neutral formula when you do not, closing 'Cordialement' or 'Met vriendelijke groet'. Photos on the CV are optional and increasingly uncommon, but diploma details are not: Belgian CVs normally list your qualifications in full, with institution and year, and the letter should explain how those qualifications apply to this role.
Language is the decision that matters most. Postings in Flanders are in Dutch; Wallonia advertises in French; the small German-speaking community uses German; Brussels is French, Dutch or bilingual; and English appears mainly at EU institutions, international organisations and multinationals. Write in the language of the advertisement — always. If a Brussels employer advertises bilingually, choose the language of the team you would join, or ask. Candidates from outside the EU should state plainly whether they already hold the right to work, since the permit question arises early in Belgian hiring.
A Belgian screener reads for three signals: language match, qualification match, and clarity. Start by naming the role and the source, then build the argument:
What a Belgian recruiter checks first: your letter's language matches the ad, your diploma line is present, and your work-permit status is clear if you are from outside the EU.
The template below is a working Belgian letter in placeholder form. The annotations show what each part is doing for a bilingual market:
Re: [Job Title] — [Reference Number]
[Opening: introduce yourself, state the role, explain your interest.]
[Second paragraph: highlight relevant experience and skills. Connect your background to the job requirements.]
[Third paragraph: explain why this company specifically. Reference their work, values, or recent projects.]
[Closing: summarise interest, mention attached CV, express enthusiasm for an interview.]
The language of the job advertisement — Dutch in Flanders, French in Wallonia, German in the German-speaking community, either (or English, if stated) in Brussels. For a bilingual posting, pick the language of the team you would join.
Only where the ad is in English — typically EU bodies, international organisations and multinationals, mostly around Brussels. For a locally advertised role, an English letter to a Dutch or French posting signals a language gap the role may not have.
A photo is optional and no longer expected. A complete diploma list on the CV is expected: qualification, institution, year, with the relevant one referenced in the letter.
Only if the advertisement asks. Some Belgian postings state a gross monthly range; if asked to quote expectations, answer with a figure consistent with that range rather than leaving it to the interview.