ESA Evidence Checklist - What Evidence to Submit for Your WCA Claim

Updated May 2026

Strong evidence is the single biggest factor in a successful WCA claim. The DWP makes decisions based on evidence, and the more specific, recent, and relevant your evidence is, the better your chances.

Essential Evidence

• GP letter - Ask your GP to write a letter specifically addressing how your conditions affect your ability to work. The letter should mention: diagnosis, severity, prognosis, treatment, medication and side effects, and specific limitations in a work context.
• Specialist letters - Letters from consultants, psychiatrists, rheumatologists, neurologists, pain clinics, or any specialist you see. Hospital discharge summaries and clinic letters are valuable.
• Fit notes (Med3) - If your GP has issued fit notes stating you are "not fit for work," these support your claim.
• Prescription records - A list of all medication showing doses and duration. This demonstrates the severity of your conditions and provides evidence of side effects.

Additional Evidence

• Therapy or counselling records - Letters from therapists, psychologists, or counsellors
• Community mental health team records - If you are under a CMHT, their reports are highly valued
• Occupational therapy reports - These specifically address functional capability
• Social worker reports - If you have a social worker, their assessment of your needs is relevant
• Care plan or support plan - Documents showing what help you receive and why

Personal Evidence

• Pain or symptom diary - A 2-4 week diary showing daily symptoms, pain levels, what you could and could not do each day, and how your condition varies
• Statement from someone who knows you - A partner, carer, family member, or friend who sees your daily limitations can write a supporting statement
• Photos - If your condition has visible effects (swelling, skin conditions, mobility aids, home adaptations), photos are evidence

How to Ask for Evidence

When asking your GP or specialist for a letter, be specific about what you need. Say: "I am applying for ESA and need a letter that explains how my conditions affect my ability to work. Please mention which of the 17 WCA activities my conditions affect, and whether you believe work-related activity would pose a substantial risk to my health."

Many GPs will charge a fee for a supporting letter (typically £20-50). This is worth the investment - good medical evidence significantly improves your chances.

When to Submit Evidence

Submit evidence at every stage: with your initial ESA50/UC50 form, with any mandatory reconsideration, and at any tribunal. New evidence can be submitted at any point and is often the deciding factor.

Related Guides

• Complete WCA guide
• How to fill in the ESA50 form
• Mandatory reconsideration guide
• How to qualify for the Support Group
• What to say at your WCA assessment