What filing actually looks like
Start with a paper trail. Except for initial rent assessments, you are expected to have already tried resolving things directly with your landlord. Send a registered letter (aangetekende brief) laying out the problem and a reasonable deadline, usually six weeks for maintenance issues. Keep this letter. It becomes your main piece of evidence later.
If your landlord doesn't respond or doesn't fix it, log into the Huurcommissie's portal with your DigiD and fill in the form for your specific dispute. Upload everything relevant: your lease, message history with the landlord, receipts, and photos of any damage.
There's a filing fee (leges), and it's deliberately small: €25 for tenants. If your case goes your way, you get that €25 back, and your landlord is separately ordered to cover the tribunal's costs, which start at €500 and climb if the same landlord keeps losing similar cases.
For disputes involving point counts or physical defects, an independent surveyor visits the property. They measure rooms, check the energy label, and note any damage you've reported. Their report becomes the factual backbone of the ruling.
Once everything's in, the Huurcommissie decides. If the facts are clear-cut, the chair issues a direct written ruling (voorzittersuitspraak) without a hearing. If there's more to argue about, both sides get a formal hearing first.