Long-term sick leave in the UK: after a year off, fewer than half return to work

On 23 September the government published the plan for Britain's first Workplace Health System. It was written by Sir Charlie Mayfield, co-chair of the Keep Britain Working review. This is not a new benefit or a new payment: it is an attempt to stop people who fall ill from being quietly pushed out of work.

The headline number: four weeks versus a year

If someone is off sick for 4–6 weeks, 96% return to work. If the absence stretches beyond a year, fewer than half come back. That gap is the whole point of the reform: help has to arrive in the first weeks, not once a person has already dropped out of the labour market.

The scale, in the government's own figures: around 300,000 people a year leave work because of a health condition or disability; since 2019 the number of working-age people out of work because of ill health has grown by 800,000; 2.8 million are currently out of work with long-term sickness. The cost to the economy is put at £212 billion a year.

What was actually announced

The system has three parts.

An employer standard, being developed with the British Standards Institution. It sets out what a company should do at each stage: recruitment, healthy in work, unwell in work, absence and return, exit and re-employment. The certified standard is due to be finalised by the end of the vanguard phase, in 2029.

Affordable workplace health support. Smaller firms without their own occupational health service are promised pooled buying; the review costs non-clinical case management at £5–15 per employee per month. Live examples: a Hull hub connecting small businesses to occupational health at corporate rates; South Yorkshire placing case workers inside workplaces; Liverpool employers testing their own return-to-work protocols.

Data. A Workplace Health Intelligence Unit will collect figures on sickness absence, return-to-work outcomes and disability employment, so employers see numbers rather than impressions.

Who is taking part

The vanguard phase runs in 11 regions with more than 200 organisations and over 250 employers, ten mayoral authorities and all three devolved administrations. The review estimates direct benefits of £3–8 billion a year, rising to £9–18 billion at full maturity.

What you can use today

The plan runs over years, but some of the tools already exist.

WorkWell is a £259 million programme aimed at 250,000 people at risk of leaving work for health reasons — you do not have to be on benefits. Connect to Work targets 300,000 sick or disabled people. More than 1,000 Pathways to Work advisers are already in place. All of it sits inside a £3.5 billion employment support package.

If you are off sick for a long time

The practical sequence has not changed, and it matters more than any strategy.

The first seven days in a row are covered by self-certification; after that you need a fit note. A fit note can say "may be fit for work" with conditions — altered hours, different duties, a phased return. That wording is usually what saves the job.

Then the money. We cover sick pay rates and disputes separately: statutory sick pay in the UK: what you are owed.

And third: ask your employer for a return-to-work conversation and a written plan before the absence passes a month. The 96%-versus-50% figure is precisely about that window.

Fit note reform is in the plan too, but it sits in the expansion phase — 2027 to 2029. Until then the current rules apply.