Market supplements and recruitment premiums

A market supplement is an extra payment on top of the normal grade for a job the employer finds hard to fill or keep staff in, because the grade on its own does not match what the job pays elsewhere. Councils use them most, particularly for children’s social workers, planners, building control surveyors and legal staff, but the NHS, schools and Civil Service departments have their own versions. They are discretionary, usually time-limited and reviewed regularly, so they can go down or stop.

Why public employers pay them

Public sector grades are set by job evaluation, which compares the content of jobs inside the organisation. It ignores what other employers are paying. When the outside market for a profession runs well ahead of the internal grade, vacancies stay open and agency costs go up. A supplement lets the employer pay more for that job without regrading it, which would have knock-on effects for every job evaluated at the same level.

The grade stays the same, so the supplement is shown separately on adverts and payslips. An advert might say “SCP 26 to 30 plus a market supplement” or “Band 6 plus RRP”.

How councils use them

Most councils have a market supplement policy. Typically it requires evidence that the post is hard to fill, such as repeated failed recruitment or high turnover, together with pay data showing the gap with comparable employers. The supplement is then approved for a fixed period, often with a review before it is renewed.

Common forms include:

• A fixed annual amount paid monthly with salary.
• A one-off or staged “golden hello” for new starters.
• Retention payments paid after a set period of service.
• Starting new staff on a higher point in the grade.

Children’s social work is the most common example. Councils compete with each other and with agencies for experienced social workers, and supplements are often aimed at particular teams such as child protection. The social worker pay guide covers how that fits with the grade.

NHS recruitment and retention premia

In the NHS, the equivalent under Agenda for Change is the recruitment and retention premium (RRP). National RRPs can be agreed for whole staff groups, and employers can award local RRPs for specific posts where recruitment is hard. They are paid as a cash sum separate from basic pay and are reviewed. Like council supplements, they can be withdrawn, usually with notice.

Schools and teachers

The teachers’ pay document in England allows schools to make recruitment and retention payments, such as help with relocation or extra payments for hard-to-fill posts. Maintained schools must set out how they use them in their pay policy. Academies have more freedom over pay and some offer their own incentives. These sit apart from allowances for responsibility, such as TLRs.

Teacher training bursaries and scholarships for shortage subjects are paid to trainees rather than staff, so they are not market supplements, though they come from the same recruitment pressures.

Civil Service pay flexibilities

Civil Service departments can ask for extra pay flexibility for specific groups where they have recruitment or retention problems. For 2026/27 the pay remit guidance allows small business cases adding up to 1 per cent more to the paybill for a specific group, on top of the 3.5 per cent headline. Pay flexibility cases are due by 31 October 2026. Specialist allowances, for example for digital, data and technology roles, are one common result.

Terms to check before you accept

Read the offer letter for these points:

1. How long the supplement lasts and when it will be reviewed.
2. Whether it can be reduced or removed, and how much notice you get.
3. Whether it is pensionable and whether it counts towards overtime or unsocial hours payments.
4. Whether it has to be repaid if you leave within a set period, and how much.

A repayment or clawback clause can only be deducted from your wages if your contract allows it or you have agreed in writing in advance. If a deduction appears that you did not agree to, the salary overpayments guide and ACAS can help.

Equal pay

Supplements pay some people more than others on the same grade, so employers have to be able to justify them. Under the Equality Act 2010, if a supplement goes mainly to one sex and cannot be objectively justified by genuine market evidence, it can lead to an equal pay claim. Most policies therefore insist on evidence and regular review. If you are concerned that a supplement is being applied unfairly, your union or ACAS can advise.

Tax

Supplements, premiums and golden hellos are taxed as pay through PAYE, with income tax and National Insurance deducted in the month they are paid. A large lump sum in one month can push that month’s deductions up. The take-home pay calculator shows the effect of a regular supplement on your monthly pay, and the guide to reading the salary on a job advert shows how supplements appear in vacancies.