Referral letters are among the most consequential documents a social worker writes, and among the least taught. A referral to a mental health service, a housing team, a domestic abuse charity or a specialist assessment is often the single action that changes a client’s trajectory — and the receiving service decides how quickly to act based almost entirely on what the letter says. This guide explains what a referral letter needs to do, shows a worked example, and offers a template you can use today.
What a referral letter is for
A referral letter has one job: to give the receiving service enough information to make a decision without having to ring you. That means it must answer, in order, four questions the reader is asking:
- Who is this about? Reference, age, relevant circumstances — never a full name in any third-party tool or unsecured email.
- What are you asking me to do? Assessment, intervention, advice, joint working. Be specific.
- Why now? What has changed, what the risk is, and how urgent it is.
- What has already been done? So the receiving service doesn’t repeat it or assume nothing was tried.
Everything else in the letter supports those four answers. If a paragraph doesn’t help the reader decide, cut it.
The structure that works
Receiving services across health, housing, education and the voluntary sector read hundreds of referrals. A predictable structure lets them find what they need fast. The order below is the one that consistently gets referrals actioned rather than returned for more information:
- Reason for referral — one or two sentences. The specific service or action requested.
- Client details — reference code or initials, date of birth or age, household composition where relevant.
- Background — the shortest account of the situation that makes the referral make sense. Not the full case history.
- Current concerns — what is happening now and what you have observed, kept separate from what you have been told.
- Risk — stated plainly, with a level if your organisation uses one, and the protective factors alongside it.
- Action taken to date — what you and other services have already done.
- Consent — whether the client knows about and agrees to the referral, and any limits on what can be shared.
- Contact and availability — how the receiving service reaches you, and when.
Referral letter example — social work to mental health service
A fictional example, using a reference code rather than a name, of the kind of draft CaseworkAI produces from a worker’s rough notes:
Notice what the example does: the request is in the first line, observation and report are kept apart, risk is stated with both sides, and the receiving service knows exactly what has already happened and how to reach the worker. That is the whole craft.
Common mistakes that get referrals returned
- Burying the ask. If the reader reaches paragraph four before learning what you want, the letter goes to the bottom of the pile.
- Sending the case history instead of the referral. The receiving service needs enough to decide, not everything you know.
- Mixing what you saw with what you were told. “The client is not coping” is a conclusion. “The client reported X; the worker observed Y” is evidence.
- Vague risk language. “Some concerns” tells the reader nothing. State the risk, the level, and the protective factors.
- Missing consent. Many services will not open a referral without it, and will send the letter straight back.
- Full client names in an unsecured channel. Use a reference code or initials in any draft that leaves your organisation’s system.
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Referral letters for NGO and community case managers
Case managers in NGO settings often refer into services that have never heard of their organisation and have no shared system. That makes the letter carry more weight, not less. Two things help: a one-line description of your organisation and your role in the client’s life, and an explicit statement of what you will continue to do after the referral so the receiving service knows the client is not being handed over entirely. Where referrals cross into statutory or donor-funded services, the format above is also the one those services are used to receiving.
Free referral letter template
If you prefer to write from a template rather than generate a draft from your notes, this one follows the structure above:
REFERRAL LETTER TEMPLATE
To: [service / team]
From: [name, role, organisation]
Date: [date]
Client reference: [initials or reference code only]
REASON FOR REFERRAL
[The specific action or service requested, in one or two sentences]
BACKGROUND
[The shortest account that makes the referral make sense]
CURRENT CONCERNS
[What the client has reported / what the worker has observed — kept separate]
RISK
[Level, concerns, protective factors]
ACTION TO DATE
[What has already been done, by whom]
CONSENT
[Whether the client knows of and agrees to the referral; any limits on sharing]
CONTACT
[How and when to reach the referring worker]
Related guides
Frequently asked questions
How long should a social work referral letter be?
One page. If it runs longer, the background section is almost always the culprit. The receiving service can ask for the full history once they have accepted the referral.
Do I need the client’s consent to make a referral?
In most circumstances, yes, and the letter should say so. The exceptions are safeguarding situations where sharing without consent is lawful and necessary — in which case the letter should state the basis for sharing rather than leave it out.
Can I use AI to draft a referral letter?
Yes, provided you review the draft and take professional responsibility for it. CaseworkAI drafts referral letters from rough notes in about a minute; the worker checks it, corrects it and sends it as their own work. Never include a full client name in the notes you submit.