ESAexpert.co.uk← All Guides
Updated March 2026 · ESAexpert.co.uk

ESA Mandatory Reconsideration: How to Challenge a WCA Decision

If the DWP has found you Fit for Work or placed you in a lower group than you believe is correct, you can challenge the decision through Mandatory Reconsideration (MR). Around two-thirds of ESA MR decisions are revised in favour of the claimant - so it is well worth challenging.

What is Mandatory Reconsideration?

Mandatory Reconsideration is a formal request for the DWP to look at their decision again. A different decision maker reviews your case, considering any new evidence you provide. You must request MR before you can appeal to a tribunal.

Time limit

You have one month from the date on your decision letter to request MR. This is the date on the letter, not the date you received it. If you are late, you can request a late MR with good reasons (illness, waiting for evidence, etc.) for up to 13 months.

How to request MR

Write to the DWP stating:

What to include in your MR request

For each activity where you disagree with the score, explain which descriptor should apply and why. Reference the specific wording of the descriptor and explain how your conditions meet it. Use WCA terminology throughout: "the majority of the time," "significant discomfort," "reliably," "repeatedly."

Provide any new evidence: GP letters, consultant reports, fit notes, therapy records. If you did not submit evidence with your original form, this is your chance.

If MR fails: tribunal appeal

If the MR decision is still unfavourable, you can appeal to an independent First-tier Tribunal. Around two-thirds of WCA tribunal appeals are decided in favour of the claimant. The tribunal is an independent panel (usually a judge and a doctor) who look at the evidence fresh. You can attend in person, by phone, or by video.

Get Your ESA50 Form Wording Right

Our Done For You package writes your complete ESA50 answers, personalised to your conditions. Try one activity free.

Try Free Preview →

Done For You £99.99 · Full Report £49.99 · MR Pack £149.99

Step-by-Step: How to Request a Mandatory Reconsideration

You have one month from the date of your decision letter to request an MR.

Step 1: Read your decision letter. Identify every activity where you believe the score is wrong.

Step 2: Write your MR letter. For each challenged activity, explain why the score is wrong and which descriptor should apply.

Step 3: Gather new evidence. Ask your GP, specialists, and therapists for letters addressing how your conditions affect your ability to work.

Step 4: Submit everything by recorded delivery. Keep copies.

What Makes a Successful MR?

After Submission

The DWP should respond within 14 days (often longer). They can revise the decision, partially revise it, or maintain it. If maintained, you can appeal to a tribunal where success rates are even higher.

Time Limits

Standard: one calendar month. Late requests accepted up to 13 months with valid reason (illness, hospitalisation, not receiving the letter).

Need help with your WCA50 form?

ESAexpert gives you personalised, activity-by-activity WCA guidance for all 17 activities. Descriptor matching, evidence checklists, and ready-to-use language for your form.

Try 4 Activities Free →