Wtta timeline 2026–2028: all key dates
All dates from the official schedule, with what you need to do at each step.
Updated 24 October 2026
New to Dutch rules? The Wtta (Wet toelating terbeschikkingstelling van arbeidskrachten, the Placement of Personnel Admission Act) is a Dutch law that requires every business that supplies workers to other companies in the Netherlands to hold an admission from the Dutch Labour Market Admission Authority (NAU). Official sources are mostly in Dutch, so we link to them and summarise them in English.
The dates
| Date | What happens | What you do |
|---|---|---|
| 1 July 2026 | Inspection bodies can apply for accreditation | Check the NAU register to see which bodies are accredited |
| 1 Nov – 31 Dec 2026 | Registration for the transitional arrangement | Agency: register using eHerkenning level 3 and a Berichtenbox |
| 1 January 2027 | The Wtta enters into force; the transition year starts and obligations apply | Comply with the standards framework |
| 1 May – 30 June 2027 | Apply for admission or exemption | Agency: submit your application (VOG, deposit, inspection report or SNA) |
| From 1 July 2027 | NAU assesses applications; public register for hiring companies | Hiring company: check your suppliers |
| 1 January 2028 | Enforcement by the Netherlands Labour Authority; the Waadi register moves to the Wtta register | Only admitted agencies (or those under the transitional arrangement) |
Why 1 November 2026 is the most important date
If you do not register for the transitional arrangement in time, you must already be admitted by 1 January 2028. According to the NAU, getting eHerkenning level 3 can take several weeks. Read how to register.
How ready are you for the Wtta?
Take the free readiness check (3 minutes) or join the Uitleenklaar waitlist: checklist, document vault and compliance file for €29 a month.
Frequently asked questions
When does the Wtta take effect?
The law enters into force on 1 January 2027. Enforcement by the Netherlands Labour Authority starts on 1 January 2028.
When do I apply for admission?
Between 1 May and 30 June 2027, via toelatinguitleenmarkt.nl.
Sources (in Dutch)
- toelatinguitleenmarkt.nl – Key dates
- Letter to Parliament on the Wtta's entry into force (24 April 2025)
- toelatinguitleenmarkt.nl – Suppliers of workers (Waadi register transfer)
- Netherlands Labour Authority – Wtta
- toelatinguitleenmarkt.nl – Apply for eHerkenning and Berichtenbox in time (6 Aug 2026)
Last checked: 24 October 2026. Rules and dates can change; always check the official source.
Read next
- Wtta: registering for the transitional arrangement
- Is my staffing agency admitted?
- Wtta checklist for small staffing agencies
- Wtta requirements: deposit, VOG and inspection report