This is an important question and the answer depends on which benefit you are challenging and what the decision was about, but I can give you a solid general framework that applies across most benefits disputes in England and Wales.
The golden rule is this: every piece of evidence you send should directly address the reason the decision went against you. Start by reading the decision letter carefully, because it will usually tell you the basis on which the decision maker reached their conclusion. Your evidence needs to challenge that specific reasoning.
Types of evidence commonly relevant:
1. Medical evidence. This is often the most important category, particularly for disability-related benefits such as Personal Independence Payment, Employment and Support Allowance, or Universal Credit with a limited capability for work element. Useful medical evidence includes GP records and letters, consultant or specialist reports, discharge summaries from hospital, community mental health team records, occupational therapy or physiotherapy reports, and medication lists with an explanation of side effects. A letter from your GP or specialist that specifically addresses the activities or descriptors relevant to your benefit claim can be extremely powerful. Ask them to describe what you cannot do or can only do with difficulty, rather than simply listing diagnoses.
2. Your own written statement. Write a detailed account of how your condition affects you on a typical day, including your worst days. Be honest and specific. Avoid generalised statements like "I struggle with everything" and instead describe exactly what happens, for example "I cannot stand long enough to cook a meal and have to sit down after five minutes because of pain in my lower back."
3. Supporting statements from people who know you. A partner, carer, family member, friend, or support worker who sees you regularly can write a statement describing what they observe. These carry weight because they come from someone with no personal stake in the outcome.
4. Care and support records. If you receive care from a local authority, a care agency, or a support worker, their records and assessments can be very helpful. This includes care plans, support plans, and social worker assessments.
5. Photographs or other physical evidence. In some cases, photographs of your living situation, aids and adaptations you use, or the physical effects of your condition may be relevant.
6. Prescriptions and pharmacy records. These can corroborate what medication you take and how frequently.
7. Evidence of the impact on daily life. This could include things like evidence of home adaptations, blue badge documentation, records from charities or support organisations you use, or evidence from an employer about adjustments made for you.
Practical points on preparing and sending evidence:
Keep copies of absolutely everything you send.
Send evidence by a trackable method if possible, or at minimum get proof of posting.
If you are at the mandatory reconsideration stage, you can submit new evidence that was not available at the time of the original decision, and you should do so if it helps your case.
If you are appealing to the First-tier Tribunal (Social Entitlement Chamber), you can continue to submit evidence right up to and including the hearing itself, though it is better to get it in early so the tribunal panel can read it in advance.
When gathering medical evidence, be aware that some GPs charge for letters. If cost is a barrier, ask whether the GP surgery will provide a brief summary or printout of your records instead, which is often free or low cost.
One important point about timing: if you are at the mandatory reconsideration stage, there is no strict deadline for submitting evidence, but the DWP can make their reconsideration decision at any time after one month, so get your evidence in promptly. If you are appealing, submit your evidence with your appeal or as soon as possible afterwards, and certainly well before any hearing date.
If you want more tailored guidance, it would help to know which benefit is involved, what the decision said, and whether you are at the mandatory reconderation stage or the appeal stage.
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