Wtta entry into force: more transparency and enforcement within the staffing sector?

On Tuesday 15 April, the House of Representatives gave its assent to the Law on the Admission for the Posting of Workers (Wtta). A loyal reader of our blogs is already aware of the key points of this as we have previously explained what this law entails and why it is important to be on time.

A quick refresher: what does the Wtta regulate?

The Wtta introduces an admission system for employment agencies and other companies that lend workers. Only those officially authorised will soon be allowed to operate in this market.

And that includes clear requirements. As a lender, you must, among other things:

• provide a Certificate of Good Conduct (VOG); 
• deposit a security deposit of €100,000;
• prove that you pay the right wages to your employees; 
• and neatly pay your taxes.

The Labour Inspectorate monitors - not only upon admission, but also afterwards with regular checks.

Not only lenders, also hirers beware!

Companies that hire staff - so-called hirers - also face new obligations. From 2026, they will only be allowed to work with employment agencies that have been admitted to the market. Are you not doing so? Then, as a hirer, you yourself can be sued for violations, with all the financial consequences that entails.

Preparing for 2026: what can you do now?

For hirers:

• Check your collaborations. Do you work with a temporary employment agency? Then check whether they apply for approval on time or already have SNA certification.
• Map your hiring chain. Make sure you know who you are doing business with and under what conditions - this can prevent a lot of hassle later on.

For employment agencies:

• Start on time. Do you not yet meet the conditions? Do not wait until the end of 2025, but take steps towards admission now.
• Get voluntary certification. Until 1 July 2025, you can already get certified via the Stichting Normering Arbeid (SNA) - this will make the real admission process a lot smoother soon.

Questions about staffing agreements or the posting of workers? If so, please contact Dennis Oud, Elke Hofman-Bijvank, Tim van Riel or Tessa Sipkema.