Why medical supporting letters get rejected, and what to do about it

Almost every rejected medical letter was truthful. That is what makes the pattern worth understanding. Letters rarely fail because a doctor wrote something untrue. They fail because the document did not do the job the reader needed doing, and the reader had no safe option but to set it aside.

Across benefits, housing, immigration and court work, the same 6 failures account for most of it.

1. The letter names a diagnosis and stops

This is the most common by a wide margin. A letter confirms that a person has a condition, lists the medication, and ends.

The trouble is that no decision maker in any of these systems is assessing diagnoses. They are assessing consequences. A housing officer wants to know whether the accommodation is harming this person. A benefits assessor wants to know what the person can reliably do. A tribunal wants to know what a particular outcome would produce. A diagnosis alone leaves every one of them to make an inference they are not qualified or permitted to make.

The fix is to write about tasks and effects rather than labels. Not depression, but: wakes 3 or 4 times most nights, cannot sustain concentration for more than about 20 minutes, has stopped preparing meals and is losing weight, manages to attend work but describes doing so by compartmentalising and is exhausted by the evening.

2. It does not say where the information came from

A letter that runs together what the records show, what the person said, what the doctor observed and what the doctor thinks is a letter that reads as advocacy, whatever its intentions.

Experienced assessors discount advocacy quickly, because they see a great deal of it. What persuades them is the opposite instinct: a doctor visibly drawing a line between what they know and what they have been told. Recording that a person reports being unable to leave the house alone, and that this is consistent with the anxiety observed at assessment, is stronger evidence than flatly asserting that they cannot. The first is a doctor being careful. The second is a doctor guessing and hoping nobody checks.

3. It claims the decision

A doctor who writes that a person meets the criteria, qualifies for the award, should be placed in a particular band, or ought not to be removed has stepped into the decision maker’s job.

The effect is not neutral. It signals that the doctor either does not understand the boundary or is willing to cross it, and both readings undermine the clinical content that sits above the offending sentence. State the clinical position. Leave the conclusion where it belongs. A letter that stops short of the answer is more likely to get the answer you wanted.

4. It overstates

The temptation is understandable, particularly where a person is genuinely struggling and the system has already let them down once.

It backfires reliably. A single unsupportable claim gives an assessor a reason to doubt the rest, and once doubt is established it spreads across the whole document. A letter describing moderate impairment accurately carries more weight than one describing severe impairment unconvincingly, because the first survives scrutiny.

The same applies in reverse, which is less often said. A letter that omits the things that do not help looks incomplete to anyone reading the full file, and the full file is usually in front of them. Engaging with the awkward evidence is what makes the favourable evidence believable.

5. It ignores variability

Most of the conditions that generate supporting letters fluctuate. Most letters are written from a single appointment, and a single appointment catches a single day.

If the person happened to be having a reasonable day, the letter understates their position. If they were having a poor one, an assessor comparing it against other records may find an inconsistency the letter never explains. Either way the document is weaker than it should be.

The answer is to write about the typical position rather than the appointment: how often the bad days occur, what happens on them, and what proportion of days the person is functioning below the level described. This is also why a fortnight of notes kept before the assessment improves a letter more than almost anything else the person can do.

6. It answers a question nobody asked

A letter written without knowing what it is for tends to be generic, and generic letters are easy to set aside.

The council has published criteria. The DWP has activities and descriptors. The Home Office has asked something specific. The court has a defined issue. A letter written around the actual question, using the actual vocabulary of the scheme, is doing half the assessor’s work for them, and assessors respond to that.

This is why the most useful thing anyone can supply when commissioning a letter is not their medical history. It is the form, the criteria, the refusal letter, or the letter of instruction.

What a letter cannot fix

Some cases do not have a medical dimension, and no letter creates one. Where a person’s difficulties are real but unconnected to the accommodation, or where the functional impact genuinely falls below the threshold being applied, an honest doctor says so.

That conversation is not a pleasant one to have, and it is better than the alternative. A letter written to support a case the evidence does not support costs the person money, delays them, and teaches the assessor to read the next letter from the same source more sceptically.

Frequently asked questions

If my letter was rejected, can it be rewritten?

Often, yes, and the refusal is the most useful document you have. Refusals usually state what was missing. Where the reason given is that the evidence did not demonstrate a link, or did not address function, that is a gap a properly constructed letter is designed to fill.

Does a longer letter carry more weight?

No. Length correlates poorly with persuasiveness. What matters is whether the letter answers the question, shows its sources and addresses function. A focused 2 page letter beats a rambling 6 page one every time.

Should I tell the doctor what I want the letter to say?

Tell the doctor what the letter is for, what the criteria are and what has already been refused. Do not tell them what to conclude. A doctor who takes instruction on conclusions is writing a document that will not hold, and you are the person who pays for that when it fails.

Is an independent doctor better than my own GP?

Neither is automatically better. Your GP has the records and the history. An independent doctor can give the task the time it needs and structure it around the criteria. The stronger letter is whichever is more specific and better evidenced.

How current does the evidence need to be?

Most assessors want something from the last 6 to 12 months, and sooner where a condition is progressing or fluctuating. If your circumstances have changed materially since the letter was written, get it revised rather than resubmitting it.

How to arrange an assessment

Clinique Alpa writes medical supporting letters and independent medico legal reports across benefits, housing, immigration and court work, prepared by Dr Mitesh Parmar, a GMC registered and MedCo registered GP with a parallel medico legal practice. Assessments are currently by secure video.

When you get in touch, tell us what the letter is for, send any criteria or forms the assessing body uses, and include any refusal you have already had. If there is a deadline such as a hearing date, say so and we will work to it.

Start with our medical reports page, or book an online GP consultation to talk it through first. To ask about fees and availability, telephone 020 8882 8088.

Dr Mitesh Parmar, Principal GP and Clinical Director at Clinique Alpa. MBBS MRCGP, GMC number 6113670.