Payroll, Policies and Proof: A Small-Business Guide to the 2026 Employment Reforms

Payroll is often treated as a finance function: hours, rates, deductions, payslips. Employment law reform is rarely so tidy. The changes introduced by the Employment Rights Act 2025 reach into contracts, shift scheduling, leave requests and dismissal decisions—areas that payroll may process but does not own. For a small business, the risk is not usually a single dramatic breach. It is the quiet accumulation of out-of-date paperwork and informal practice that later becomes evidence in a tribunal claim.

As of 7 November 2026, many of the reforms are in force or on a confirmed implementation path. Precise commencement dates matter. They should be checked against GOV.UK and professional advice rather than inferred from headlines. What follows is a strictly prioritised checklist for the next payroll cycle: not a complete legal audit, but a practical order of work.

1. Audit who works for you, and on what basis

Before changing a contract or a payslip, establish the legal shape of the workforce. Employees, workers and self-employed contractors have different rights. Casual staff, zero-hours staff, agency workers and part-time employees may all be treated differently for different purposes. The reforms make that mapping more important, because rights can depend on regular patterns of work rather than labels in a contract.

Practical steps:

• List every person who works for the business, including occasional and seasonal staff.
• Record their status, written terms, typical hours and length of service.
• Identify anyone on zero-hours or casual arrangements whose hours have become regular.
• Check whether written statements and written particulars have been issued at the right time.

2. Update written statements and contracts

The first payroll run after a change is a poor moment to discover that a contract still reflects an older legal framework. Written statements should be accurate, accessible and consistent with what actually happens in the workplace. A contract that promises one thing while managers do another is not a defence; it is a paper trail.

Focus on:

• Day-one written particulars, including pay, hours, holiday and notice.
• Zero-hours terms, including how hours are offered and cancelled.
• Flexible-working provisions and how requests will be handled.
• Family leave and pay references, including day-one rights in specific areas such as paternity leave and unpaid parental leave.
• Any probationary or dismissal wording that assumes more freedom than the law allows.

The broader move to day-one unfair dismissal has a longer implementation runway. That does not make probation a safe zone. Dismissals connected with pregnancy, maternity or other protected characteristics can be unlawful regardless of length of service.

3. Rebuild scheduling and cancellation practice

For businesses using zero-hours arrangements, the operational risk sits with rota managers as much as with HR. The reforms include rights to guaranteed hours where regular patterns are worked, notice of shifts and compensation where shifts are cancelled at short notice. Those rights cannot be managed by a clause alone; they require a scheduling process that produces records.

A practical test is simple: if a tribunal asked for the last three months of shift offers, cancellations and changes, could the business produce them quickly and consistently? If not, fix the process before the next payroll run.

4. Tighten flexible-working and family leave administration

Flexible working is not a new concept, but the direction of reform is towards more formal handling. Requests should be considered reasonably, refused only on permitted grounds and documented. Managers should not rely on informal conversations that leave no record of the business reason.

Family leave also needs administrative attention. Day-one rights in specific areas mean that length-of-service assumptions may be wrong. Payroll should know which absence types trigger statutory pay, which require leave records and which need a written response.

5. Review statutory sick pay and absence rules

Statutory sick pay is a payroll issue with legal consequences. Changes to waiting days, earnings thresholds or calculation methods can require software updates, policy changes and manager training. Even where a particular change has not yet commenced, old defaults should not be treated as permanent.

Check that:

• absence records are complete;
• SSP is calculated from the correct average earnings;
• policies do not impose unlawful waiting periods;
• payroll software has been updated for current statutory rates and rules.

6. Treat policies as working documents

A staff handbook that nobody has opened since it was issued is a liability dressed as a safeguard. Policies on discipline, grievance, absence, flexible working, equality and family leave should match current law and current practice. Training matters too: a lawful policy applied inconsistently can still generate claims.

7. Keep records that prove the process

Tribunals rarely see a business at its best. They see a file. Keep recruitment notes, contract variations, flexible-working requests, shift records, absence records, pay calculations and decision letters. Retention periods should be sensible and consistent with data protection law.

The payroll test

Before the next payroll run, a small business should be able to answer four questions: who works here, on what terms, what has changed, and where is the evidence? If any answer is uncertain, the priority is not a wholesale rewrite of every document. It is to fix the highest-risk gap first—usually status, written terms or shift records—and then work through the rest in order.

This is not a reason to panic. It is a reason to be methodical. The businesses that cope best with employment reform are rarely the ones that predicted every headline. They are the ones that kept their paperwork close to reality.