Locum Optician Take-Home Pay in the UK (2026/27)

Two Very Different Pay Structures, One Day Rate

Locum optometry is usually quoted as a day rate, but how that day rate turns into take-home pay depends entirely on the engagement structure behind it. A locum booked through an agency or umbrella company is typically paid PAYE — tax and National Insurance come off automatically, and the amount reaching the bank account is a genuinely net figure. A locum who invoices practices directly as a sole trader receives the day rate gross, and is responsible for setting aside their own tax and National Insurance for a later Self Assessment bill. The two routes can produce very different-looking payslips for the same headline day rate.

Worked Example: PAYE vs Self-Employed on the Same Rate

Take a locum optician earning a £350 day rate, doing 3 days a week across a year (roughly £54,600 annualised):

Use the

to estimate the PAYE route, and the to see what a self-employed locum should be setting aside from each gross payment.

Expenses Are Where Self-Employed Status Pays Off

The trade-off for handling your own tax is the ability to deduct genuine business expenses before profit is calculated — professional indemnity insurance, GOC registration and professional subscriptions, travel between practice sites, specialist kit, and a reasonable share of home-office running costs. A locum who books through an umbrella typically can't claim these in the same way, since the umbrella already nets everything down through payroll.

Watch the £100,000 Cliff Edge

Locum work often means stacking several bookings across a year, and it's easy to lose track of a running total. Total income above £100,000 starts to taper the Personal Allowance away, creating an effective marginal rate of around 60% on the slice between £100,000 and £125,140. A locum optician who does one particularly busy year — perhaps covering maternity leave at a second practice on top of a regular booking — should model this taper in advance with the

rather than being surprised by it in January.

Getting Set Up Correctly

• Confirm with each engager whether you're being paid PAYE or invoicing gross
• Register for Self Assessment promptly if any income is being paid gross
• Keep a mileage log and receipts for professional fees, insurance and equipment
• Set aside a running estimate of tax and NI from every gross payment received
• Model your annual position with the take-home pay and self-employed tax calculators once bookings start to add up

This article is general information, not financial or tax advice. Figures use 2026/27 UK tax and National Insurance rates.