Job descriptions and pay bands in the United Kingdom
Reviewed by Mellow Editorial Team, HR & payroll content team
A well-written job description paired with a clearly defined pay band reduces hiring disputes, supports equal pay compliance, and gives candidates the information they need to self-select accurately. Here is how to build both from scratch.
What belongs in a UK job description
A job description is not a legal document, but its contents have legal consequences. Keep it factual and tied to the role, not the person currently doing it.
Include these core elements:
- Job title. Use a title that reflects market norms so candidates can find the role and benchmark it against competitors.
- Reporting line. State who the person reports to and, if relevant, who reports to them.
- Location and working pattern. Specify the office, remote or hybrid arrangement, and contracted hours. The Employment Rights Act 2025 strengthens day-one rights, including the right to request flexible working from the first day of employment, so be precise about what you are actually offering rather than what you hope someone will accept.
- Purpose of the role. One or two sentences on why the role exists and how it contributes to the business.
- Key responsibilities. Aim for six to ten bullet points describing outcomes, not just tasks. "Own the monthly close process and produce management accounts by day five" is more useful than "do accounts".
- Essential and desirable criteria. Separate what is genuinely required to do the job from what would be a bonus. Conflating the two inflates the bar and can deter qualified candidates, particularly women and candidates from under-represented groups.
- Salary range and benefits. Publishing a pay band is not yet universally mandated in the UK, but it is increasingly expected and materially improves application quality.
Avoid criteria that could be indirectly discriminatory — for example, requiring a particular number of years of experience where competence is what actually matters, or specifying a degree for a role where skills are demonstrable without one.
How to set a pay band
A pay band defines the minimum and maximum the business will pay for a given role. It should reflect three things: the external market, the internal pay structure, and the actual budget.
Step 1 — gather market data. Use salary surveys from professional bodies, published data from recruitment agencies, ONS earnings statistics, and job adverts for comparable roles. Look at total compensation, not just base salary, because pension contributions, bonus potential and benefits vary significantly across employers.
Step 2 — define the band width. A typical band spans 20–30% from minimum to maximum. A narrow band suits roles with a short learning curve or a large team doing identical work. A wider band gives room to reward growth and retain people without promoting them prematurely.
Step 3 — position the band in the market. Decide whether you are targeting the median (P50), above it (P75) or below it. This is a deliberate business decision. Paying below the median is viable if you offer something else of genuine value — equity, flexibility, development — but you need to be honest about that trade-off.
Step 4 — check internal equity. Before publishing, map the proposed band against what you currently pay people in similar or adjacent roles. If the new band overlaps uncomfortably with a senior role, or sits below what an existing employee earns, resolve that first. Unexplained internal pay gaps create retention problems and equal pay risk.
Step 5 — document your rationale. Record why you set the band where you did. This is useful if a candidate or employee challenges a pay decision, and it is essential groundwork if you are ever required to produce an equal pay audit.
Equal pay and pay transparency obligations
UK law requires that men and women receive equal pay for equal work. That principle extends to workers on different contract types doing equivalent roles. A clearly documented job description and pay band makes it far easier to demonstrate that pay decisions are based on the role and its requirements, not on characteristics of the individual.
Employers with 250 or more employees must publish gender pay gap data annually. Even if you are below that threshold, building pay equity into your job architecture now avoids expensive remediation later.
Where you advertise roles that are genuinely open to part-time or job-share arrangements, say so explicitly. Omitting that information can exclude candidates with caring responsibilities and expose you to indirect sex discrimination claims.
Keeping job descriptions current
A job description written at hire becomes inaccurate quickly, especially in fast-growing businesses. Review each description at least annually, at the point of any significant restructure, and whenever a role materially changes.
If responsibilities expand substantially without a corresponding pay review, the gap between what someone was hired to do and what they are now doing becomes a retention and legal risk. A regular review cycle, tied to your annual pay review process, keeps descriptions, bands and actual pay aligned.
---
Run HR and payroll in United Kingdom with Mellow
Mellow brings HR, payroll and 12 AI agents into one platform — built to handle United Kingdom properly, with payroll included, from £4 per employee per month. The AI agents don't just answer questions; they generate contracts, run cost estimates and draft letters for you.
- United Kingdom payroll software
[Start a free trial →](/register)