Tactical Alert: The "Hidden" Compliance Deadline of 6 April 2026

Every now and then, employment law throws in something genuinely unexpected. This is one of those moments.

Out of the blue, the government has confirmed that several provisions linked to the Employment Rights Act 2025 will take effect on 6 April 2026. Much of this was anticipated. But one development has caught even experienced HR and legal professionals off guard: a brand new legal duty requiring employers to keep detailed records of holiday entitlement and holiday pay.

There was no clear signal in last summer’s roadmap. It didn’t feature in the Department for Business and Trade’s February timeline. And yet, from April, it becomes law.

Up until now, there has been no explicit statutory obligation to maintain records proving compliance with the Working Time Regulations. Most employers track holiday because they need to run a business, not because legislation requires them to evidence every calculation. In practice, that has led to a wide spectrum of approaches. Some organisations have robust systems with clear audit trails. Others rely on basic HR platforms or spreadsheets, often with limited visibility over how holiday pay is actually calculated.

That inconsistency has rarely been tested directly. From April 2026, it will be.

The new requirement is framed simply: employers must keep “adequate records” to demonstrate compliance. But in reality, this goes far beyond tracking days taken. Employers will need to evidence how entitlement is structured, how leave is accrued and carried forward, and—critically—how holiday pay is calculated. That last point is where the real complexity sits.

Holiday pay is not always just basic salary. Depending on working patterns, it can include overtime, commission, allowances, and other elements of “normal remuneration”. Many employers apply these principles in practice but do not formally document the calculation. That gap becomes a problem when the obligation shifts from “getting it broadly right” to “being able to prove it”.

The requirement to retain these records for six years significantly raises the stakes. This is not just about future compliance—it creates the potential for retrospective scrutiny. If challenged, whether by a regulator or in tribunal proceedings, employers will need to demonstrate that their approach has been correct over time. Where records are incomplete, the risk shifts quickly. It becomes much harder to defend a position without clear evidence of how decisions were made.

Importantly, this duty applies across the board. There is no carve-out for size or simplicity. It captures all workers, including those with irregular hours or part-year arrangements. These are precisely the areas where holiday pay is already most complex and, in many cases, least well documented. For employers operating with variable workforces, this change is likely to be particularly significant.

The enforcement angle is what truly elevates this from an administrative update to a serious compliance issue. Failure to comply is not just a technical breach—it is a criminal offence, punishable by a fine. That alone changes how this obligation should be viewed internally.

Enforcement is expected to sit with the new Fair Work Agency, launching on 7 April 2026. This body is intended to consolidate enforcement across multiple areas, including minimum wage, Statutory Sick Pay, and modern slavery obligations, with holiday pay expected to fall within its remit over time. There is still some uncertainty around how quickly those enforcement powers will be fully operational, particularly as the transfer of powers from HMRC has not yet been finalised. As with any new regulator, effectiveness will ultimately depend on resourcing. But the direction of travel is clear: employment rights enforcement is becoming more centralised, more visible, and more proactive.

Interestingly, the same set of commencement regulations does not reference the anticipated Statutory Sick Pay reforms, including the removal of waiting days and the lower earnings limit. Given the prominence of those changes in the wider reform narrative, their absence is notable. It is likely that separate regulations will follow, but the lack of confirmation adds a layer of uncertainty to what is already a busy implementation period for employers.

The key point in all of this is that the new duty is not really about record keeping. It is about accountability. You cannot record what you do not properly understand. If there is uncertainty within the organisation about how holiday pay is calculated, what should be included, or how different categories of worker are treated, then the issue runs deeper than administration. The new requirement simply brings that into focus.

From a practical perspective, employers should be taking a step back and assessing their current position. Not just what systems are in place, but whether those systems genuinely reflect how holiday entitlement and pay are calculated in practice. If challenged tomorrow, could the organisation clearly evidence compliance? For many, the honest answer will be unclear.

This is one of the more quietly significant developments under the Employment Rights Act framework. It does not introduce a new employee right. Instead, it introduces something arguably more impactful: the expectation that employers can prove, with clarity and consistency, that they have been getting it right all along.

With April 2026 fast approaching, this is not an area to leave until the last minute. At Nexus Employment Consultancy, we support employers with detailed audits of holiday pay compliance, record-keeping frameworks, and practical system design—ensuring your processes are not only compliant, but defensible.

Get in touch to arrange a Holiday Pay Compliance Review and make sure you are ready before enforcement begins.