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Automatic Enrolment: workplace pension duties for first employers

Understand the duties start date, staff assessment, workplace-pension setup, communications and ongoing monitoring required when employing staff for the first time.

Portrait of Daniel Mercer, founder and writer of Founder FinancesAvatar for Sarah Chen

Daniel Mercer & Sarah Chen

Written by Daniel, peer-reviewed by Sarah

Last reviewed:

Published:

Who this is for: UK founders employing staff for the first time who need to sequence pension duties alongside PAYE, payroll and the first-hire cash plan without choosing a provider or giving pension advice.

The short answer

Automatic-enrolment duties begin on the day an employer’s first member of staff starts work—known as the duties start date. The employer must use current rules to assess staff by age and earnings, decide who must be put into a workplace pension scheme, communicate with staff, make required contributions and complete the relevant declaration. Duties can still apply even where no one needs to be automatically enrolled on day one. Use The Pensions Regulator’s tailored timeline and current guidance for the business’s facts; do not rely on a payroll setting or a general rule of thumb alone.

Your duties start before the first payroll feels routine

The Pensions Regulator says workplace-pension legal duties begin on the day the first member of staff starts work, called the duties start date. It also warns that duties can apply even if the employer does not initially think any staff need to be put into a scheme. Record the date alongside the planned start date, first payday and PAYE setup milestones; it is not an administrative task to leave until the end of a probation period.

The Pensions Regulator’s new-employer route provides a tailored duties timeline. Use it to see current tasks and deadlines for the business’s circumstances. A director-only company or a business with no employees may have a different position, but do not assume an exemption based solely on job titles or pay level—check the official questions and the facts.

Assess every relevant member of staff using current rules

On the duties start date, employers must assess staff age and earnings. The Pensions Regulator page checked on 25 August 2026 says staff aged from 22 up to State Pension age who earn over £10,000 a year, £833 a month or £192 a week must be put into a pension scheme and both employer and worker pay into it. These thresholds and rules can change, so check the official current position for each assessment.

Staff outside that category may not need automatic enrolment at that moment, but they can have rights to ask to join and the employer can still have communication and monitoring tasks. GOV.UK says that if a worker becomes eligible because their age or earnings change, the employer must take the current required action and write to them within the stipulated period. Variable-hours, seasonal and temporary staff still need proper assessment.

Set up the scheme and integrate it with payroll

Choose and set up a workplace pension scheme that can receive the required employee information and contributions, then configure the payroll process to assess staff, calculate and transfer contributions, retain records and send required communications. Payroll software may assist, but it does not transfer legal responsibility away from the employer. Confirm what payroll, the pension provider and any adviser will each do before the first contribution is due.

Put pension costs into the cash forecast with gross pay, employer National Insurance, payroll charges and PAYE payments. Contribution dates can differ from the employee’s payday, so record actual deadlines rather than assuming everything leaves the bank at once. The First Hire Guide owns the wider affordability decision; this guide owns the pension-duty sequence after the employment decision is made.

Communicate, declare and keep monitoring

After assessment and enrolment decisions, employers need to write to staff so they understand how automatic enrolment applies, including eligible staff who have been put into a scheme. GOV.UK’s employee guidance explains that communications cover the scheme, contributions, how to leave and tax relief. Staff have legal protections: employers must not encourage or force someone to opt out.

Keep evidence of assessment, communications, scheme setup, contributions and the declaration of compliance. Reassess staff when relevant earnings or circumstances change and complete ongoing duties, including re-enrolment where applicable. Check current Pensions Regulator instructions rather than recreating a process from an old payroll run.

Control assessment, postponement and re-enrolment dates

Record the date each worker is assessed, the information sent, the pension scheme action and the next review. Postponement, opt-out and re-enrolment are separate events with separate evidence; do not treat a worker’s initial choice as a permanent exemption.

Keep payroll, pension and employee records reconciled. A change in pay, age, worker status or employment pattern can change the assessment, so assign an owner to check the trigger rather than relying on a one-off setup.

Use The Pensions Regulator and current payroll guidance for the exact duties and dates. Escalate missed assessments, late communications or uncertain worker status before the issue becomes a complaint or enforcement problem.

Worked example: Illustrative first-employer pension workflow

Duties start date
The first staff member’s first day at work
Assessment
Assess each relevant worker’s age and earnings using current rules and record the result
Scheme and payroll setup
Set up the scheme, configure the payroll process and fund contributions on the required timeline
Communication and declaration
Write to staff and complete the required declaration using current Pensions Regulator instructions
Ongoing control
Monitor changes in age, earnings and workforce; retain evidence and keep dates in the payroll calendar

Illustration only. Pension duties depend on current rules and the facts for each worker. Use The Pensions Regulator’s tailored timeline and obtain appropriate support where needed.

What to do, in order

  1. 1

    Record the duties start date

    Treat the first member of staff’s first working day as a compliance milestone and use The Pensions Regulator’s current tailored timeline.

  2. 2

    Assess the relevant workforce

    Use current age and earnings rules for each relevant worker, including variable-hours and temporary staff where applicable.

  3. 3

    Set up the pension and payroll hand-off

    Confirm the provider, payroll tasks, contribution process, data transfer and deadlines before the first contribution is due.

  4. 4

    Communicate and complete the declaration

    Give required information to staff, avoid opt-out pressure and complete the current compliance steps by the stated deadline.

  5. 5

    Run an ongoing monitoring routine

    Review changes in pay and age, retain evidence, calendar recurring tasks and follow current re-enrolment requirements.

Common mistakes

  • Waiting until after the first pay run to identify the duties start date.
  • Assuming that no current eligible worker means there are no pension duties at all.
  • Using outdated earnings thresholds or a payroll default instead of checking current official rules.
  • Forgetting to include employer pension costs and contribution dates in the cash forecast.
  • Encouraging or pressuring staff to opt out, rather than giving the required neutral information.

If you only have five minutes

Write the first employee’s start date, first payday, pension duties start date, payroll owner and the date you will use The Pensions Regulator’s tailored timeline. Add the dates to the payroll calendar.

Important

General information only, not employment, payroll, pension, tax, legal or regulated financial advice. Automatic-enrolment duties depend on current rules and worker facts. Use current official guidance and obtain appropriate qualified support where needed.

Frequently asked questions

When do automatic-enrolment duties begin?
The Pensions Regulator says they begin on the day the employer’s first member of staff starts work, called the duties start date.
Do I have duties if no one is eligible to be enrolled today?
Yes. The Pensions Regulator says duties can still apply, including assessment and communication tasks. Use its current tailored timeline for the business’s facts.
Who must currently be enrolled?
The Pensions Regulator page checked on 25 August 2026 states that qualifying staff are aged 22 to State Pension age and earn over £10,000 a year, £833 a month or £192 a week. Check current official rules before acting.
Can I tell staff to opt out?
No. GOV.UK says employers must not encourage or force staff to opt out. Give the required neutral communications and follow the current process.

Sources

Portrait of Daniel Mercer, founder and writer of Founder FinancesAvatar for Sarah Chen

Who wrote and checked this

Written by Daniel Mercer, who has run the numbers on his own small business and writes from that experience. Daniel is not an accountant or a regulated financial adviser. Who writes this site.

Peer reviewed by Sarah Chen, Chartered Accountant (FCA). Peer reviewers check for technical accuracy and compliance with current UK regulations.

Last reviewed: 25 August 2026

Do this next

Next steps

  1. 1

    Put the numbers in: First Hire Affordability Calculator

    Use your own figures rather than the worked example above.

    Open the tool
  2. 2

    Read next: Can I Afford My First Employee?

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  3. 3

    Work through the Growth & Funding hub

    Fund the opportunity, don't just borrow the money.

    Open the hub

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