Career guide
Guide to becoming a locum psychologist in the UK: HCPC protected titles, BPS Chartered status, NHS agency, private CBT, EAP, and medico-legal expert work.
At a glance | Regulator
HCPC registration under a protected psychologist title requiredA locum psychologist covers clinical work on a session-by-session basis for the organisations that need them, as a self-employed professional rather than a salaried employee. This guide walks through everything you need to do to start, in order, and the common pitfalls that catch people in their first year.
Guide | 7 steps
Psychologist titles are criminally protected: Clinical Psychologist, Counselling, Forensic, Educational, Health, Occupational, Sport & Exercise, or generic Practitioner Psychologist. Register under the one matching your training. Using the wrong title in marketing is prosecutable.
Separate from HCPC. BPS Chartered status is expected in most senior locum roles and required for some referrals (medico-legal, expert work). Each division has its own CPD expectations, typically around 16 hours/year.
Four common streams: NHS agency (capped framework rates, PAYE), private self-pay CBT (£90–£160/session in London), EAP network contracts (Vita, AXA, Onebright, Health Assured – fixed lower rates), medico-legal expert witness work (£1,500–£3,500/report plus court days). Most established locums run two or three of these.
Anyone processing patient data outside an NHS role must register with the Information Commissioner’s Office. The fee is £52/year for sole traders (Tier 1, ico.org.uk/for-organisations/data-protection-fee), and the maximum penalty for failing to pay or notify is £4,350. Register before your first private client.
HCPC standards and most professional indemnity policies require documented clinical supervision. Keep contracts signed and supervision logged. Indemnity insurers can void cover if you can’t evidence it.
Bond Solon expert witness training is the minimum standard for court-acceptable reports. Join the Expert Witness Institute and build relationships with 3–5 solicitors’ firms in your area. Forensic and Clinical Psychologists dominate this niche – it’s the highest-margin work in the profession.
NHS agency work is PAYE / umbrella. EAP contracts are usually self-employed per-session. Self-pay private practice is sole trader or Ltd Co. Educational Psychologists leaving LA roles often take commissioned block work as self-employed contractors – a distinctive feature of EP locuming.
Once you are registered
Log every session with its date, rate, and workplace, send invoices that chase themselves, keep your documents current, and watch your tax reserve build as you go.
Checklist | Documents
Sessional sends reminders 30 days before each expiry.
Checklist | First year
Related
Last reviewed April 2026. Rates and regulator details change. If something looks off, let us know.
From the first booking
Keeps the records, does the sums. Filing and advice stay with you and your accountant.
Sessional tracks every session, invoice, expense, and document from day one. No card to start.