Re-enrolment duties: the employer's 3-year reset
More than 11.1 million workers have been automatically enrolled into a workplace pension since 2012, and over 2.4 million employers have met their duties in that time [1]. Enrolling staff once is not the end of the obligation. Every three years an employer must repeat a version of the exercise, putting eligible staff who have since left the pension scheme back into it [2].
This recurring obligation is called cyclical re-enrolment. It catches workers who opted out, who ceased active membership, or who dropped their contributions below the statutory minimum. The Pensions Regulator treats it as a legal duty, not a courtesy, and employers who ignore it face the same enforcement ladder that applies to the original enrolment [2].
This guide sets out what cyclical re-enrolment is, how an employer chooses the date, which workers must be assessed, how contributions restart, and the re-declaration deadline that closes the cycle.
Key takeaways
- Re-enrolment repeats roughly every three years and applies to every UK employer with staff.
- The re-enrolment date can be chosen from a six-month window around the third anniversary.
- Eligible jobholders who opted out or ceased membership must generally be put back in.
- Workers who opted out within the previous 12 months can be left out at the employer's discretion.
- A re-declaration of compliance is due within five calendar months of the third anniversary.
- Postponement, allowed at first enrolment, cannot be used at re-enrolment.
What cyclical re-enrolment actually is
Cyclical re-enrolment is the duty to put eligible jobholders who are no longer saving into a pension back into an automatic enrolment scheme on a three-yearly cycle [3]. The underlying principle is that pension saving should be the default state, so a worker who has stepped out is periodically stepped back in [3].
The duty applies whether or not the employer actually has anyone to re-enrol. Even an employer with no qualifying staff to put back must still complete a re-declaration to confirm the position to the regulator [2]. This is the single most common misunderstanding: the paperwork is mandatory even when the pension action is not. A modern HMRC-recognised payroll platform flags the cycle automatically so the date does not slip past unnoticed.
Choosing the re-enrolment date
An employer does not have to use the exact third anniversary. The re-enrolment date can be any date within a six-month window that opens three months before the third anniversary of the previous cyclical re-enrolment date and closes three months after it [4]. For the first cycle, the anniversary is measured from the employer's original staging date or duties start date [4].
The flexibility exists so employers can align the date with a convenient point in the payroll calendar, such as the start of a pay reference period. The table below summarises the window.
| Milestone | Timing |
|---|---|
| Window opens | 3 months before the third anniversary |
| Third anniversary | Measured from the previous re-enrolment (or staging) date |
| Window closes | 3 months after the third anniversary |
| Re-declaration deadline | Within 5 calendar months of the third anniversary |
One point catches employers out. The re-declaration deadline is fixed to the third anniversary, so choosing a late re-enrolment date does not buy extra time to file [5]. The paperwork clock runs from the anniversary regardless of the assessment date chosen [5].
Which workers must be re-enrolled
On the chosen date, the employer assesses staff who previously opted out or ceased membership and identifies which of them now meet the eligible jobholder test [6]. An eligible jobholder is aged 22 or over but under State Pension age and earns above the auto-enrolment earnings trigger.
The eligibility test at the re-enrolment date
For the 2026-27 tax year the earnings trigger stays at £10,000 a year, and the qualifying earnings band runs from £6,240 to £50,270 [7]. A worker who has crossed the trigger since last opting out will now qualify and must be re-enrolled [8]. The thresholds that frame this test are set out below.
| Threshold | Annual | Monthly | Weekly |
|---|---|---|---|
| Lower earnings limit | £6,240 | £520 | £120 |
| Earnings trigger | £10,000 | £833 | £192 |
| Upper earnings limit | £50,270 | £4,189 | £967 |
Assessment is based on the worker's age and earnings at the re-enrolment date, not on a historic snapshot [6]. Employers running payroll for SMEs with variable-hours staff need to check the position in that specific period [8].
The 12-month discretion
There is one significant exception. An employer may choose whether to re-enrol any eligible jobholder who opted out or ceased membership within the 12 months before the re-enrolment date [9]. This avoids the awkward outcome of re-enrolling someone who left the scheme only weeks earlier [9].
The same discretion covers a handful of other situations, including workers who have given or received notice to end employment and those paid a winding-up lump sum in the previous 12 months [3]. In each case the choice sits with the employer, and either decision is compliant provided it is applied consistently [3].
How contributions restart
Once a worker is re-enrolled, active membership begins again and contributions resume at the statutory minimum. The total minimum contribution has been fixed at 8% of qualifying earnings since April 2019, of which at least 3% must come from the employer [10]. The balance is made up by the employee, usually 5% including tax relief.
| Contribution | Minimum rate | Basis |
|---|---|---|
| Employer | 3% | Qualifying earnings |
| Employee (including tax relief) | 5% | Qualifying earnings |
| Total | 8% | Qualifying earnings |
Re-enrolled workers keep their right to opt out again. A fresh one-month opt-out window opens from the later of the date active membership is created or the date the enrolment information is issued [3]. Crucially, postponement cannot be used at re-enrolment, so the assessment and enrolment must happen on the chosen date itself [4]. Accountants handling this across a client base often rely on payroll bureau software to schedule each employer's cycle separately.
Re-declaration of compliance
Re-enrolment is only complete once the employer tells the regulator what it has done. The re-declaration of compliance must be submitted within five calendar months of the third anniversary of the duties start date [5]. It records the PAYE reference, the scheme details, and the number of workers assessed and re-enrolled [2].
The re-declaration is required from every employer on the cycle, including those with nobody to put back [2]. Software that already holds the worker data can pre-fill most of the return, which is one reason a connected payroll API reduces the year-three administrative load [6].
What happens if an employer gets it wrong
The Pensions Regulator enforces re-enrolment through the same graduated process as first enrolment. An employer that misses the duty may receive a warning letter, then a statutory notice setting a deadline to comply [11]. Failure at that point triggers financial penalties.
| Stage | Action | Amount |
|---|---|---|
| Warning | Letter with a compliance deadline | None |
| Statutory notice | Instruction to comply and pay missed contributions | None |
| Fixed penalty notice | Flat fine | £400 |
| Escalating penalty notice | Daily fine while the breach continues | £50 to £10,000 per day |
The escalating daily rate scales with headcount, so a larger employer that ignores the notice accrues penalties far faster than a micro-business [12]. Unpaid fines can be pursued through the courts, including a county court judgment [11]. For a fuller walkthrough of the wider duty, the Moonworkers guide to auto-enrolment explained covers the first-enrolment mechanics that re-enrolment mirrors.
Conclusion
Cyclical re-enrolment turns auto-enrolment from a one-off setup task into a standing three-year rhythm. The mechanics are predictable: a six-month window around the anniversary, an assessment of previously opted-out staff, a restart of contributions at the 8% minimum, and a re-declaration filed within five months. The parts that trip employers up are the ones that feel counter-intuitive, namely that the paperwork is due even with nobody to re-enrol, and that postponement is off the table.
The steady growth of workplace pension coverage means more employers reach each successive re-enrolment cycle with a larger and more varied workforce. Keeping the assessment tied to real earnings in the pay period, rather than an annual estimate, is what keeps the process defensible if the regulator ever asks.
Frequently asked questions
Do I have to re-enrol staff if nobody has opted out?
The pension action only applies where there are eligible jobholders to put back, but the re-declaration of compliance is required regardless. Every employer on the cycle must file the re-declaration within five calendar months of the third anniversary, even if it confirms there was nobody to re-enrol [2].
Can I postpone re-enrolment the way I postponed the first enrolment?
No. Postponement is available at the initial enrolment stage and for new starters, but it cannot be applied at cyclical re-enrolment. The assessment and any enrolment must take place on the chosen re-enrolment date itself [4].
What if an employee opted out only a few months ago?
An employer has discretion over any eligible jobholder who opted out or ceased membership within the 12 months before the re-enrolment date. That worker can be left out of this cycle, though the employer may still choose to re-enrol them [9].
How is the re-enrolment date connected to the re-declaration deadline?
They are measured from the same anchor but run differently. The re-enrolment date can be picked from a six-month window around the third anniversary, while the re-declaration deadline is fixed at five calendar months from the anniversary itself. Choosing a later assessment date does not extend the filing deadline [5].
