The Dutch contractor bill is backdated to 2025, and it lands on the client

As of January 2026, the Dutch Tax Administration is entitled to look at a long-running contractor engagement, decide it was employment, send the bill to the hiring company rather than the worker, and date that bill back to the start of 2025 ^[1]. That makes the contractor-versus-employee call a finance exposure with an accrued balance, not a hiring preference to be revisited at the next headcount review.

The rules themselves are not new. The Netherlands has had a statutory boundary between employment and self-employment since 2016 under the Wet DBA, and for most of a decade nobody enforced it ^[2]. The moratorium ended on 1 January 2025, but that first year was deliberately soft: the tax authority corrected rather than punished ^[3]. From 1 January 2026, serious-fault penalties apply again, while default penalties for honest mistakes remain on hold ^[4]. Dutch accountancy firm Crowe Peak notes that additional wage tax assessments reach back to 1 January 2025, and that the soft landing disappears entirely on 1 January 2027 ^[5]. A company opening this file now starts from 24 months of assessable history with a deadline four months out ^[6]. The window between enforcement resuming and penalties returning was twelve months, and it has closed ^[7].

The second front is civil, not fiscal. On 16 June 2026 the Eerste Kamer adopted bill 36.783, amending Book 7 of the Dutch Civil Code to create a legal presumption of employment for work paid below EUR 38 an hour, measured against a reference date of 1 January 2026, with commencement to follow by Royal Decree ^[8]. When a self-employed worker invokes the presumption, the hiring company must prove no employment relationship exists; if it cannot, the arrangement counts as false self-employment and the worker gains protections including sick pay continuation and dismissal protection ^[9]. The government's broader VBAR bill lost its clarification section in March 2026 on the grounds that it created more confusion than it resolved ^[10]. A single party opposed the surviving bill in the lower house in April and the same party opposed it in the senate in June ^[11], so the direction of travel is not seriously in dispute.

The cost mechanics are what should concentrate attention. Reclassification lands on the hiring party: the client owes back payroll taxes and social premiums, with interest ^[12]. Companies without a Dutch entity carry two further questions: whether they should have been acting as a withholding agent, and whether the arrangement created a permanent establishment for corporate tax purposes ^[13]. A misclassified contractor is a payroll problem; a permanent establishment is a corporate tax problem, and terminating the contract does not resolve it ^[14]. Both exposures now attach to the same low-rate engagement, one arriving from an authority after an audit, the other from the worker at any time ^[15].

The defence is behavioural. Law firm CMS notes that a February 2025 Supreme Court ruling gave real weight to whether the worker behaves like an entrepreneur, which protects genuine freelancers and removes the argument for anyone with one client and no commercial risk ^[16]. Keeping a contractor relationship defensible means multiple clients, own tools, control over method, commercial risk and a rate comfortably above the threshold, with engagements built around deliverables and acceptance criteria rather than hours ^[17]. Day-to-day conduct matters more than the contract, because conduct is what an audit examines ^[18].

Watch for the Royal Decree date that switches on the presumption ^[8], the 1 January 2027 removal of the remaining leniency ^[5], and the first civil claims filed by contractors invoking the reversed burden of proof ^[9].