- A phased return is a planned, time-limited build-up of hours or duties after absence. It is a bridge back to the full role, not a permanent arrangement.
- A good plan states the start, the steps, the end and the review points, and is written down and agreed with the employee before day one.
- Pay for hours not worked during a phased return depends on your policy and what you agree. Decide that in advance, not in week two.
- Occupational health advises on the pace, any restrictions and when to review. The decision to agree the plan, and to flex it, stays with the manager.
Someone has been off for two months. The fit note says they may be fit for work with a phased return. The occupational health report recommends one. Everyone agrees it is a good idea. And then the details land on the manager's desk. How many hours in week one? Which days? What do we pay for the hours they are not working? What if it is not working? A phased return to work is only as good as the plan behind it, and the plan is a management document, not a clinical one. This guide sets out how to write one that works.
What a phased return to work is
Acas defines a phased return to work as when someone who has been absent gradually builds up to returning to work. It might be appropriate after a long-term illness, a serious injury or a bereavement, and in practice it is used after surgery, after mental health absence, after musculoskeletal injury and after any absence long enough for stamina and confidence to have dropped.
The build-up can be in hours, in days, in duties, or in all three. A person might start on three short days a week and add hours weekly. They might return to full hours but with the most demanding duties held back. They might do both. What defines a phased return is that it is planned, time-limited and moving towards the full role. Acas is clear that the employer and employee should agree how long it will be for and regularly review how it is going, and its advice is to put what is agreed in writing.
A fit note can recommend a phased return by ticking the "may be fit for work" box, and an occupational health report will usually go further and suggest a pace. Neither document writes the plan. That is the manager's job, with the employee.
Extending a phase is not a failed return. It is the review process working. A phased return fails when nobody is watching it.
When a phased return helps, and when it does not
A phased return works when the person is fit to do some work now and the barrier to full duties is stamina, symptoms that build over a day, or the need to rebuild confidence and routine. It is the right tool for the employee recovering from surgery who tires by lunchtime, the person returning after a period of depression who needs to re-establish structure, and the manual worker whose back is healing but not yet ready for a full shift.
It does not help when the person is not yet fit for any work, when the real need is a permanent adjustment rather than a temporary build-up, or when the role has hard safety requirements that cannot be phased. A driver, a lone worker at height or a nurse dispensing medication is either fit for the safety-critical element of the role or not. In those cases the plan is usually a return to non-critical duties first, with the critical element released on clinical advice rather than on a calendar.
It also does not help when it has no end. A phased return that quietly becomes a permanent part-time arrangement on full pay has stopped being a return and started being an unresolved question, which is unfair to the employee and to colleagues.
How to structure the plan
Acas gives no standard length, and deliberately says how long a phased return will last depends on the employee's individual circumstances. In our clinical experience most phased returns run for between two and six weeks, and a longer plan is reasonable where the clinician advises it, for example after major surgery or a lengthy mental health absence.
Whatever the length, the plan should state five things. The start date. The steps, week by week, in hours, days and duties. Any restrictions that apply throughout, such as no lone working or no lifting above a stated weight. The end point, which is the date the person is expected to be back on full hours and full duties. And the review points, usually at the end of each step, with a named person responsible for holding them.
Medwyn tip
A typical four-week plan after a long absence from an office-based role might look like this. In week one, three half days on Monday, Wednesday and Friday, with no customer-facing duties. In week two, four half days. In week three, three full days and one half day, customer-facing duties resumed. From week four, full hours and full duties, with a final review at the end of the week. Each step is confirmed at a short review before the next begins.
Start conservatively. It is far easier to add hours to a plan that is going well than to pull back from one that has overreached, and a setback in week one can undo the confidence the whole exercise was meant to rebuild. Be specific about duties. "Light duties" means nothing on a warehouse floor or a hospital ward. Name the tasks that are in and the tasks that are out.
Pay during a phased return
This is where most disputes start, and it is avoidable. Acas sets out the position. An employee returning to their usual work on reduced hours should get their usual rate of pay for the hours they work. For the time they are not able to work, pay depends on what has been agreed and on the employer's policy. They might get full pay if the employer has agreed to it or it is written in the organisation's policy, company sick pay if the employer offers it, or statutory sick pay if they are eligible and neither full pay nor company sick pay is offered. Where the employee returns to a lighter workload, the rate of pay is for employer and employee to agree.
Since 6 April 2026 statutory sick pay has been payable from the first full day of absence, at £123.25 a week or 80% of average weekly earnings, whichever is lower. HMRC's guidance is that where a phased return or altered hours is agreed after a period of sickness, SSP is paid for the days the employee is sick in the normal way. Some employers allow annual leave to be used to top up pay on non-working days; neither Acas nor GOV.UK addresses this, so treat it as a matter for your own policy and agreement rather than as a rule.
Good practice
Decide your approach to phased-return pay in your absence policy, before you need it, and tell the employee what it will be at the return-to-work meeting. A phased return that is agreed on Monday and disputed on payday has lost the goodwill it was meant to build.
Where occupational health fits
The occupational health clinician's role is to advise on whether the person is fit to begin a phased return, the pace that is clinically sensible, any restrictions that should apply and for how long, whether the Equality Act 2010 is likely to apply, and when a review would help. The Health and Safety Executive encourages employers to get professional advice on issues such as fitness to work or workplace adjustments, for example from occupational health providers, and to consider adjustments such as shorter hours and flexible working to help workers return.
The value of that advice depends on the questions asked. A management referral that asks "is a phased return appropriate, and if so at what pace and with what review points?" gets a plan-shaped answer. One that asks "is she fit to work?" gets a yes or a no. Where the plan is in place and falters, a review appointment is the right step. Medwyn provides reports within 72 hours of the appointment, so the plan does not have to stall while advice is awaited.
Reviewing the plan and keeping it on track
Acas says the employer and employee should regularly review how the phased return is going. Hold the review at the end of each step, keep it short, and ask three questions. How were the hours and duties? What was harder than expected? Is the next step still right? If the answer is that the person is coping well, move to the next step. If they are struggling, hold the current step for another week or reshape the next one. Extending a phase is not a failed return; it is the review process working. A phased return fails when nobody is watching it.
Write down what was agreed at each review, including any change to pay, and share it with the employee. If the plan has stalled for more than one step, or the person is going backwards, go back to occupational health rather than pressing on. HSE's guidance on supporting workers with long-term conditions makes the point that a return is made sustainable by continuing to make adjustments, for example for fluctuating conditions, after the return itself.
Common mistakes
The plan has no end date, so the phased return becomes a permanent arrangement by default. The duties are described as "light" and nobody agrees what that means. The line manager was not briefed and expects full output from day one. Pay for the non-working hours is decided after the first payslip. The fit note's end date is treated as the return date, so there is no plan ready when the person comes back. The return-to-work meeting is skipped. And the person is left to manage the return alone, when HSE's advice is to agree the plan before the return, with the worker's input, and to make sure an appropriate person keeps in contact throughout the absence.
What a phased return plan should set out
- The start date and the agreed end date for reaching full hours and duties
- Each step, week by week, in hours, days and named duties
- Any restrictions that apply throughout, and who releases them
- Pay for hours worked and for hours not worked, and any use of leave
- The review dates, who holds them and what is recorded
- What happens if a step needs to be extended or the plan reshaped
- When occupational health will be asked to review, and by whom
A phased return done well is more likely to get someone back to their full role sooner and more safely than a cliff-edge return, and it tells the whole team that the organisation manages absence with care. If you have a fit note or a report on your desk recommending one and are unsure how to turn it into a plan, our team can help you write it. Our framework for long-term sickness absence covers the steps that come before it.
This article is general guidance for employers and is not individual medical or legal advice. If you are unsure how it applies to your organisation, contact our team.
