The Employment Rights Act 2025 is not landing on UK small businesses all at once. It is arriving in stages, spread across 2026 and 2027, with some measures already in force and others still working their way through secondary legislation. That staggered timetable makes the Act easy to underestimate: a business that checked its policies in the spring can find them out of date again by the autumn without a single new announcement making headlines.
For an owner running payroll, contracts and HR without a dedicated legal team, the practical risk isn’t any one reform in isolation. It’s the number of separate deadlines stacking up over 18 months, each one touching a different part of the employment relationship, from statutory pay to dismissal rights to how shifts get scheduled.
Reviewing existing paperwork against each change as it lands is the more reliable approach, and for standard documents, a ready-made employment contract built around current requirements can give a small business a faster starting point than editing an old template line by line. It still needs adapting to the specific role and workplace, and anything contested or unusual is worth a solicitor’s input rather than a generic form.
1. Statutory Sick Pay Now Starts On Day One
Since 6 April 2026, Statutory Sick Pay has been payable from the first day of illness rather than the fourth, and the earnings threshold that previously excluded lower-paid workers has been removed. Employees earning below the standard SSP rate are now covered at the lower of the flat SSP rate or 80% of their average weekly earnings. For small employers, this means sick-pay policies and payroll systems written around the old waiting period need updating, not just the written statement given to new starters.
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2. Paternity and Parental Leave Became Day-one Rights
Also from 6 April 2026, eligible employees can take statutory paternity leave and unpaid parental leave from their very first day of employment, with no qualifying period to serve first. Notice of leave can be given from day one too. A separate provision extends bereaved partner’s paternity leave to up to 52 weeks, unpaid, if the child’s primary caregiver dies. Any handbook or offer letter that still describes these as leave someone has to “earn” after a set number of months is out of date.
3. A New Fair Work Agency Now Enforces The Rules
The Fair Work Agency was established on 7 April 2026, consolidating enforcement of holiday pay, sick pay and related obligations under a single body. According to Acas’s guidance on the Employment Rights Act 2025, the Agency can issue underpayment notices requiring payment within 28 days, with penalties of up to 200%, capped at £20,000 per affected employee. That’s a materially higher-stakes enforcement environment than before, when gaps in sick-pay or holiday-pay calculations were less likely to draw formal action.
4. Fire-and-Rehire Is Becoming Much Harder To Rely On
From 30 October 2026, dismissing an employee for refusing to accept a variation to their contract, on pay, pensions, hours or holiday, becomes automatically unfair unless the employer can show genuine, immediate financial difficulty threatening the business. This closes off fire-and-rehire as a routine tool for resetting terms that employees won’t agree to voluntarily, which is how a number of UK employers have handled unpopular contract changes in recent years. Existing contracts should be checked for variation clauses that assume more flexibility than the law will now allow, and any planned changes to pay or hours are worth reviewing against the new test before they’re put to staff.
5. Tribunal Claims Get a Longer Window and Harassment Duties Get Sharper Teeth
Two changes take effect on the same date, 30 October 2026, and both raise the bar for how complaints are handled. The general time limit for bringing most employment tribunal claims doubles from three months to six, giving former employees considerably longer to act. Employers also gain a duty to take “all reasonable steps” to prevent sexual harassment, including harassment by third parties such as customers or clients, with a possible 25% uplift on tribunal awards where that duty wasn’t met. Anti-harassment policies, reporting channels and training records are worth reviewing well before the date, not after a complaint arrives.
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6. Unfair Dismissal Protection Arrives After Six Months, Not Two Years
From 1 January 2027, employees gain protection against unfair dismissal after six months’ service rather than the current two years, and the cap on compensatory awards is removed. Dismissal-and-rehire arrangements become automatically unfair in most circumstances under this same change. In practice, this means probationary periods, performance-management processes and dismissal procedures all need to hold up to scrutiny far earlier in someone’s employment than businesses have previously had to plan for. A business that has relied on an informal chat and a quiet parting of ways within the first year or two will need a documented, fair process instead, with clear records of any performance concerns raised along the way.
7. Zero-Hours and Variable-Hours Contracts Face a Guaranteed-Hours Overhaul
Later in 2027, on a date not yet confirmed, qualifying workers on zero-hours and low-hours contracts will gain a right to guaranteed hours that reflect the pattern they’ve actually been working, plus notice of shift changes and compensation when shifts are cancelled or curtailed at short notice. Businesses that rely on flexible or casual staffing, hospitality, retail and seasonal work in particular, will want to start reviewing rota practices now rather than waiting for the exact commencement date to be confirmed.
A Short Checklist Before Each Change lands
- Employment contracts and written statements— check sick pay, paternity, parental leave, notice and variation clauses against the rules currently in force.
- Staffhandbooks and policies — update sickness, family-leave, anti-harassment and grievance procedures to match each date above.
- Payroll systems— confirm Statutory Sick Pay is calculated correctly under the post-April 2026 rules, with no waiting period or earnings cut-off applied.
- Dismissal and probation processes— tighten these ahead of the January 2027 change, since six months’ service will be a much lower bar than two years.
- Rota and shift-scheduling practices— start reviewing zero-hours and variable-hours arrangements ahead of the 2027 guaranteed-hours reform.
- A review date— put a recurring reminder on each document so it gets checked again as the next commencement date approaches, rather than once and forgotten.
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Staying Ahead of a Phased Rollout
None of these seven changes require a small business to rebuild its HR function from scratch. What they do require is treating employment paperwork as something that gets revisited on a schedule, rather than something written once when the business first took on staff and left untouched afterward. A contract or policy that was compliant in March 2026 may already be out of date by the time the next commencement date passes, simply because the law underneath it changed.
Working through the checklist above against each date, rather than waiting for a single deadline that doesn’t exist, is what keeps a small employer compliant through what is turning out to be one of the more significant multi-year overhauls of UK employment law in recent memory.
This article provides general information only and does not constitute legal advice. Employment law requirements can vary according to the specific facts of a workplace, and businesses facing a live dispute or an unusual arrangement should seek advice from a qualified solicitor.
