Key Facts

The fit note system is designed to support patients in returning to work where possible, recognising that appropriate work can be beneficial for health. GPs issue approximately 10 million fit notes per year.

Legal Framework

• Fit notes are a legal document under the Social Security (Medical Evidence) Regulations 2010 (amended 2022)
• Self-certification: employee provides own evidence for first 7 calendar days
• Fit note required from day 8 onwards
• Equality Act 2010: employers must make reasonable adjustments for disabled employees

Work and Health

• Evidence consistently shows that work is generally good for health (Waddell & Burton, 2006)
• Prolonged absence from work is associated with worse physical and mental health outcomes
• Early return to appropriate work promotes recovery
• GP role: balance patient advocacy with evidence-based assessment of capability

Common Conditions Requiring Fit Notes

• Musculoskeletal conditions (most common reason for long-term sickness absence)
• Mental health conditions (depression, anxiety — second most common)
• Respiratory conditions
• Post-surgical recovery
• Cancer treatment

Assessment Considerations

• Nature and severity of the health condition
• Type of work the patient does (physical demands, cognitive demands, workplace environment)
• Functional impact: what can the patient do vs what they cannot do
• Expected recovery trajectory
• Patient's own assessment of capability
• Psychosocial factors affecting return to work

Fitness for Work Criteria

• Consider whether the patient could work with adjustments:
  • Phased return: gradual increase in hours/days
  • Altered hours: avoiding peak commute, shorter days
  • Amended duties: lighter tasks, desk-based work, reduced standing
  • Workplace adaptations: ergonomic equipment, ground floor access, screen reader software

Red Flags (Consider Specialist Input)

• Prolonged absence (>4-6 weeks) without clear medical reason — occupational health referral
• Workplace conflict driving the sickness absence
• Risk to self or others if returns to work (e.g. safety-critical roles)
• Complex disability or chronic condition
• Fitness to drive professionally (DVLA medical standards)

Assessment

• No examination is mandatory for issuing a fit note
• Clinical assessment should be proportionate to the condition
• Consider occupational health report if complex or prolonged absence
• Use functional assessment rather than diagnostic labels where possible

Resources

• DWP guidance for GPs on fit note completion
• NICE guidelines on workplace health
• Access to Work scheme information
• Fit for Work service (if available)

Issuing Fit Notes

• 'Not fit for work': patient unable to work in any capacity for the specified period
• 'May be fit for work': patient could return with adjustments; tick applicable boxes and provide specific comments
• Be specific in comments: e.g. 'can do desk-based work only, avoid lifting >5kg, 4-hour days for 2 weeks'
• Avoid open-ended fit notes; set review dates
• Consider phased return for most conditions where possible

Supporting Return to Work

• Early contact between employee and employer during absence
• Encourage active rehabilitation (physiotherapy, CBT, graded activity)
• Occupational health referral for complex cases
• Consider Access to Work scheme for workplace equipment/support
• For mental health conditions: emphasise that supported return to work aids recovery

Referral Criteria

• Prolonged or recurrent sickness absence: occupational health
• Complex return to work decisions: fit for work assessment
• Disability requiring workplace adjustments: Access to Work
• Fitness to drive: DVLA medical standards; ophthalmology/neurology if needed

Special Situations

• Pregnancy-related illness: fit note as for any illness; maternity leave is separate
• Terminal illness: DS1500 form for fast-track benefits (under Special Rules for Terminal Illness)
• Industrial injury: consider IIDB (Industrial Injuries Disablement Benefit)
• Armed forces/safety-critical roles: specific fitness standards apply

• Short-term sickness absence (<4 weeks): majority return to work without difficulty
• Medium-term (4-12 weeks): return to work rates decrease significantly; early intervention is crucial
• Long-term (>12 weeks): only 50% return to work; after 6 months of absence, probability of ever returning to work drops below 50%
• Supported return to work (with adjustments): significantly higher success rates than unsupported return
• Mental health conditions: structured return with phased hours improves outcomes; CBT alongside return reduces relapse

Fit Note Options

Key Legal Points