What Does an HR Manager Actually Do? A Plain-English Guide

An HR manager handles the full employment lifecycle - from hiring through to exits - and keeps the business legally compliant along the way. Here is exactly what that means in practice.

Core Responsibilities of an HR Manager

Recruitment and Onboarding

An HR manager does not just post jobs. They own the entire hiring process:

• Writing job descriptions and advertising roles
• Screening applications and coordinating interviews
• Conducting right to work checks before employment starts
• Preparing employment contracts that are legally compliant
• Running induction programmes so new starters are productive quickly
• Setting up probation reviews and tracking progress

In a 20-person business this might mean hiring 5-8 people per year. In a growing startup it could mean running 3 or 4 live processes at once.

Employment Contracts and Documentation

Every employee needs a written statement of employment particulars from day one - a legal requirement since April 2020. The HR manager ensures:

• Contracts are correct for each employment type (employee, worker, fixed-term)
• Contract terms are updated when roles change
• Offer letters, variation letters and other documents are properly issued
• Employee files are maintained and GDPR-compliant

This sounds administrative. It is also the thing that saves you when an employment tribunal claim lands.

Compliance and Legal Risk Management

Employment law is not static. The HR manager's job is to keep the business on the right side of it:

• Monitoring changes to employment law and updating policies
• Ensuring NMW rates are applied correctly (and updated each April)
• Maintaining right to work records and running checks
• Managing auto-enrolment obligations for pension
• Keeping absence records and managing statutory sick pay correctly
• Ensuring working time regulations are not breached

A good HR manager spots legal risks before they become claims.

Employee Relations

This is the part that takes up more time than most business owners expect:

• Handling disciplinary processes fairly and by the book
• Managing grievance investigations
• Supporting managers with performance conversations
• Dealing with absence management, including long-term sickness
• Navigating redundancy processes correctly
• Mediating workplace conflicts before they escalate

Every one of these, if handled badly, is a potential employment tribunal claim. The HR manager's role is to make sure the process is fair and documented even when the outcome is a difficult one.

Payroll Coordination

HR managers are rarely the ones running payroll (that is usually finance or an outsourced payroll provider). But they feed the payroll process:

• Communicating starter and leaver information
• Flagging pay changes, bonuses and deductions
• Managing statutory payments - SSP, SMP, SPP
• Answering employee queries about payslips and deductions

Training and Development

In smaller businesses this is often lightweight, but it includes:

• Identifying training needs through appraisal conversations
• Coordinating mandatory training (e.g. health and safety, data protection)
• Managing the appraisal or performance review process
• Handling L&D budgets

People Data and Reporting

An HR manager tracks the numbers that tell you how the business is performing from a people perspective:

• Headcount and FTE tracking
• Turnover rate - who is leaving and why
• Absence rates and patterns
• Time to hire and cost per hire
• Salary benchmarking

Even simple monthly HR reports help business owners spot problems early.

What an HR Manager Is NOT Responsible For

There are common misconceptions about where HR's authority starts and ends.

HR Manager's Role	Not the HR Manager's Role
Advise on disciplinary process	Make the dismissal decision
Prepare redundancy calculations	Decide which roles to cut
Support with performance management	Manage the underperformer directly
Ensure pay is legally compliant	Set salaries for all roles
Recruit to a headcount plan	Write the headcount plan
Enforce the grievance procedure	Decide the outcome of a grievance

Line managers and business owners own the decisions. HR owns the process that makes those decisions defensible.

A Typical Day for an HR Manager in a 30-Person Business

To make this concrete, here is what a realistic working day might look like:

Morning:

• Review a draft contract for a new hire starting next week
• Email payroll provider with a salary change effective from the 1st
• Call with a line manager who wants to start a performance improvement plan - advise on process, draft a letter

Midday:

• Respond to an employee query about their holiday balance
• Update the right to work register after a visa renewal
• Interview debrief call for a Finance role - finalise shortlist

Afternoon:

• Write up notes from yesterday's disciplinary hearing
• Review absence report - flag two employees who have hit the trigger point
• Update the employee handbook to reflect the new flexible working law changes

This is the reality: a mix of legal protection, process management, and being the person managers turn to when a people situation arises.

Why It Is a Business-Critical Role

Small business owners often treat HR as a 'nice to have' until the moment they are served with an employment tribunal claim. At that point, the absence of proper processes becomes very expensive.

Employment tribunal claims cost an average of £8,500 to defend, even when the employer wins. The median award for unfair dismissal is around £7,000 - but there is no cap on discrimination claims.

The HR manager's job is to make sure the business never has to test those numbers.

This is guidance, not legal advice. For specific employment law queries, consult an employment solicitor or ACAS.