From 1 January 2027, a lot will change for organizations that provide staff. The WTTA introduces an admission requirement and sets stricter requirements for administration and accountability.

For employment agencies, secondments and consultancy companies, this means that time registration and internal processes must be fully transparent. WTTA compliance is about demonstrability: you need to be able to show who works where, under whose direction, and how many hours have been worked.

How do you ensure that your organization is ready on time for WTTA 2027?

Key highlights from this blog

• Stricter administrative requirements: WTTA 2027 requires full controllability of your internal processes.
• Verifiable time registration: Registration per employee, client and project will be mandatory.
• Detailed working hours: Start and end times, breaks and work location must be defined.
• Actual implementation counts: Leadership and supervision determine whether you fall under the WTTA.
• Co-responsibility of hirers: Clients must also check compliance.
• Risk of high fines: Incomplete administration can lead to penalties of up to €90,000.
• Digital tooling is crucial: A central system makes your organization demonstrably audit-proof.
• Preparation in 2026 is essential: Waiting until 2027 increases enforcement risks in 2028.

‍

What does WTTA compliance mean in concrete terms?

WTTA compliance is about demonstrability and auditability. You must be able to prove:

• Who was deployed
• With which client
• Under whose leadership
• For how many hours
• At which location
• Against which agreements
  ‍

So it's not just about invoicing, but about full transparency towards the Labour Inspectorate.

‍

📚 Read here the complete explanation of the WTTA 2027 and what this means for employment agencies and hirers.

What administrative requirements does the WTTA set?

Under the new standards framework, organizations must organize their administration in such a way that inspection is possible.

Your time registration must include at least:

• Employee name
• Period or week number
• Number of hours worked
• Start and end times per working day
• Breaks
• Work location (if applicable)
• Client/project

Important: This information must timely, complete and consistent are recorded. Distributed Excel files or manual systems increase the risk of errors and gaps.

Important dates around WTTA 2027 (and the SNA label)

WTTA 2027 has several important moments that organizations should take into account.

🗓 1 November 2026 — January 1, 2027

Notification for the use of transitional law. Lenders who want to make use of the transitional arrangement can register with the admitting authority during this period. This is reported by the Ministry of Social Affairs as part of the preparation for the WTTA.

🗓 1 January 2027

WTTA entry into force & start of admission process. The Employment of Workers Act will officially enter into force on 1 January 2027. From this date, lenders can start applying for admission.

🗓 1 May — June 30, 2027

Submitting an admission application to NAU. The period during which admission applications must be submitted to the Dutch Authority for Lending Market (NAU) — with an inspection report or a valid SNA label on 30 June 2027 — in order to make use of the transitional arrangement.

📅 July 1, 2027 — Application deadline (indicative)

Application deadline. Admission applications must be submitted no later than this date in order to be subject to transitional law.

🗓 1 January 2028

Start active enforcement. From this date, the Dutch Labour Inspectorate will enforce the WTTA admission requirement; unauthorised lenders face fines and hirers must check for themselves whether their supplier is admitted.

‍

What is the SNA label and why is it important?

It SNA label (Labour Standards Foundation) plays an important role in the transition to WTTA 2027.

Organizations with an SNA label before a certain reference date may be able to:

• Using transitional law (more about this later)
• Get admission faster
• Less risk of delay
  ‍

The label shows that you comply with:

• Payroll tax and VAT obligations
• Identity checks
• Correct wage payment
• Administrative standards

For many staffing and secondment agencies, this is an important first step towards WTTA compliance.

‍

What is transitional law at the WTTA?

Transitional law means that organizations can temporarily work under adapted rules while they arrange their final admission.
‍

It prevents companies from suddenly having to stop lending on 1 January 2027.
‍

At the WTTA, it works (in general terms) as follows:

• The law will enter into force on 1 January 2027.
• Organizations must have an official permit
• But those who have submitted an application in time can often continue to work until a decision has been made
  ‍

That “timely application” is what transitional law is all about.

‍

‍

How do you prepare for the dates?

Don't you want to be faced with surprises? Then start in 2026 with:

1. Check if you are covered by the WTTA

Analyze whether there is a provision.
‍

2. Assess whether an SNA label is necessary

Don't you have this yet? Investigate the application process.
‍

3. Bring your administration up to the standard level

Make sure that time registration is complete and verifiable.
‍

4. Coordinate this with clients

Hirers will increasingly ask for proof of admission.
‍

Why time registration will be crucial under WTTA 2027

Under current legislation, time registration is already mandatory because of:

• The Working Time Act
• Tax Invoice Requirements
• Internal control
  ‍

But under WTTA 2027, the focus shifts to:

• Inspectability
• Chain transparency
• Assessment of actual implementation
• Control of management and supervision
  ‍

Practice is leading - and you must substantiate that practice with data.

What are the risks of insufficient compliance?

Failure to comply with the WTTA may result in:
‍

• Fines up to €90,000
• Refusal or withdrawal of admission
• Shutdown of activities
• Reputational damage
• Loss of clients
  ‍

Hirers will increasingly require proof of WTTA compliance.

Does WTTA compliance also apply to consultancy and secondment agencies?

Yes - and this is often underestimated.

Do you work:

• Within a customer team?
• Under direct control?
• According to the client's schedule and instructions?
  ‍

Then there may be a provision. The actual situation is decisive, not just what is in the contract.
‍

📚 Click here to learn more about time registration for consultancy.

‍

Why digital tooling is essential for WTTA 2027

Manual registration involves risks:

• Incomplete data
• Loss of documentation
• No real-time insight
• No conclusive audit trail
  ‍

Digital time registration offers:

• Registration per customer and project
• Determining start and end times
• Inspection reports
• Insight into deployment per employee
• Historic and secure storage
  ‍

This is how you make your administration demonstrably compliant.

‍

TimeChimp helps you work WTTA-proof in 2027

TimeChimp helps organizations comply with WTTA 2027 by:

• Accurate time registration per project
• Insight into deployment per employee
• Audit and Compliance Reports
• Support for various types of hours
• Transparent registration throughout the chain

This is how you combine efficiency with proven WTTA compliance.
‍

👉 Ready for future-proof administration? Try TimeChimp free for 14 days.

‍