A practical guide to understanding your workplace, assessing first-aid needs and deciding what provision should actually be in place.
Quick answer
A first aid needs assessment helps an employer decide what first-aid equipment, facilities, personnel and arrangements are adequate and appropriate for its workplace.
The assessment should consider the work being carried out, hazards and risks, workforce size and distribution, working patterns, accident history, absence cover and other circumstances that may affect the type or availability of first aid required.1
Why first aid planning matters
Good health and safety management has a legal, moral and financial dimension.
Legally, employers have duties to protect workers and others affected by their activities. In relation to first aid specifically, the Health and Safety (First-Aid) Regulations 1981 require employers to provide adequate and appropriate equipment, facilities and personnel so employees can receive immediate attention if they are injured or taken ill at work.2
There is also a human reason for getting this right. An accident or sudden illness affects a person, not a risk-assessment form. The consequences may extend beyond the immediate injury to somebody’s health, independence, income, family life and ability to continue working.
Poor arrangements can also create financial consequences through absence, operational disruption, lost productivity, investigation time, replacement costs, insurance claims and, where appropriate, enforcement or civil liability.
First aid sits within this wider system of protection. Good risk management should seek to prevent harm in the first place, but an organisation cannot assume that every accident or episode of sudden illness will be prevented.
Who is this guide for?
This guide is aimed particularly at HR managers, general managers, office and facilities managers, operations managers, supervisors and business owners who have responsibility for workplace first-aid arrangements but may not have specialist health and safety training.
A competent health and safety adviser should already understand the underlying principles of risk assessment and first-aid needs analysis. In many organisations, however, first-aid responsibility sits with somebody whose principal role lies elsewhere.
That person may suddenly need to decide how many first aiders are required, whether EFAW or FAW training is appropriate, whether existing arrangements are sufficient and what equipment or facilities the organisation needs.
This guide therefore goes beyond a table of suggested numbers. Its purpose is to explain how to reach the decision.
What is a first aid needs assessment?
A first aid needs assessment is the process an employer uses to determine what first-aid equipment, facilities, personnel and arrangements are adequate and appropriate for its particular workplace.
HSE says employers should consider the workplace, workforce, hazards and risks and other relevant circumstances when deciding what provision is required. Factors include the nature of the work, hazards and likely harm, workforce size, work patterns, first-aider and appointed-person absences and accident history.1
Employers may also need to consider travelling, remote and lone workers, proximity to emergency medical services, shared workplaces, non-employees and other relevant needs.1
Hazard, risk and control measure: what do they mean?
Understanding these basic terms makes the assessment much easier.
Hazard
Something with the potential to cause harm — for example moving machinery, electricity, corrosive chemicals, work at height or a slippery floor.
Risk
The likelihood that somebody could be harmed by the hazard, considered alongside how serious that harm could be.
Control measure
Something introduced to eliminate a hazard or reduce the likelihood or consequences of harm.
A corrosive chemical, for example, is a hazard because it can cause burns. The level of risk depends on matters such as how employees handle it, how often exposure might occur, the quantity involved, the controls already in place and the seriousness of the possible injury.
Is a first aid needs assessment the same as a risk assessment?
Not quite. The processes are closely connected, but they perform different functions.
HSE’s general risk-management approach requires employers to identify hazards, assess risk, control risk, record significant findings where required and review the controls.3
IOSH and NEBOSH similarly emphasise a structured process of identifying hazards and people at risk, evaluating risk, selecting appropriate controls and checking whether those controls remain effective.45
Prevention comes first
A conventional workplace risk assessment is principally concerned with preventing or controlling harm.
A first-aid needs assessment takes that understanding of the workplace and asks an additional question:
First aid deals with the residual possibility of harm
Consider dangerous machinery. The machinery risk assessment should seek to prevent injury through suitable guarding, safe systems of work, maintenance, competence and other controls.
The first-aid needs assessment does not replace those controls. Instead, it asks what injuries could realistically occur despite them and whether the organisation can provide an appropriate immediate response.
A workplace using corrosive substances should follow the same logic. First control the risk of exposure. Then consider whether particular emergency equipment, facilities or training would be needed if exposure still occurred.
Start by understanding how the workplace really operates
Whoever carries out the assessment should not rely solely on paperwork.
Speak with relevant department managers, section leaders, supervisors and employees. Different parts of the same organisation may operate in very different ways.
A warehouse supervisor may identify hazards that are not obvious to HR. A production manager may know that particular machinery operates only on certain shifts. Facilities staff may understand access problems that could delay an ambulance. Employees may identify practical problems that written procedures have missed.
The aim is to understand the workplace as it actually functions, rather than relying only on policies, organisational charts or assumptions.
1. Understand the workplace
Begin by defining exactly what you are assessing.
A small office occupying one floor may be straightforward. Larger organisations may need separate consideration of buildings, floors, warehouses, production areas, workshops, vehicles, remote locations or shifts.
RLSS UK similarly recommends considering individual workplace areas and the hazards and first-aid needs associated with them.6
A single organisation-wide headcount can disguise significant differences between locations.
For example, several trained first aiders may appear on the organisation’s records, yet all of them may work in the same building or on the same shift.
The assessment must consider where people actually are when first aid may be required.
2. Consider the hazards and foreseeable injuries or illnesses
Review the hazards already identified through the organisation’s workplace risk assessments.
Then ask: if something goes wrong, what kind of injury could realistically result?
Depending on the workplace, this might include cuts, crushing injuries, burns, falls from height, vehicle-related injuries, chemical splashes, eye injuries, electric shock or other foreseeable emergencies.
Do not consider occupational injury alone. First-aid duties also concern employees who become ill at work, whether or not their illness was caused by the work itself.2
Check safety data sheets and manufacturers’ information
Safety data sheets and manufacturers’ instructions may identify particular emergency or first-aid measures relevant to substances, machinery or equipment used in the workplace.
Workplace hazard → foreseeable harm → immediate first-aid need → required provision.
3. Consider the workforce
Workforce size matters, but total headcount is only the beginning.
Consider how many people are normally present, where they are based and when they work. Include different shifts, evenings and weekends where relevant, together with mobile, remote and lone workers.
Temporary, agency and inexperienced workers may also affect the circumstances that need consideration.
4. Consider particular workforce needs without making assumptions
Some employees may have known health needs or working circumstances that reasonably affect first-aid planning.
Relevant factors might include a known medical condition, disability, pregnancy, particular work restrictions or circumstances in which additional assistance may reasonably be required.
Focus on actual circumstances and known needs. Do not assume that age, disability or another characteristic automatically makes somebody more likely to require first aid.
Where employee health information is involved, handle that information appropriately and respect confidentiality.
5. Look at previous accidents and episodes of ill health
HSE specifically identifies accident history as one of the factors that should inform a first-aid needs assessment.1
Review what has happened previously. Consider where incidents occurred, the injuries or illnesses involved, what first aid people needed and whether the existing arrangements worked.
Previous incidents may expose weaknesses that were not obvious when the organisation created its original arrangements.
They may also reveal recurring patterns connected with particular tasks, areas, equipment or working times.
6. Consider work patterns, holidays and absence
One common mistake is to count the number of employees holding valid first-aid certificates and assume that this represents adequate cover.
That number does not necessarily tell you whether first aid will actually be available when somebody needs it.
HSE specifically says employers should consider work patterns and planned or unplanned absences of first aiders and appointed persons.1
Suppose the assessment concludes that one trained first aider must be available whenever a workplace is operating. Training only one person leaves obvious gaps whenever that employee is on holiday, absent through sickness, working elsewhere or otherwise unavailable.
Assess the cover required first. Then decide how many people need training to maintain that cover reliably.
7. Consider lone, remote and travelling workers
HSE identifies lone, travelling and remote workers as factors that may affect first-aid provision.1
Ask whether employees can summon assistance, whether communication is reliable, how quickly somebody could reach them and whether personal first-aid equipment or additional emergency arrangements may be appropriate.
Distance from emergency medical services may also affect the decision.
In some workplaces, the answer will not be more first aiders. Better communications, equipment, emergency procedures or clearer location information may provide the more appropriate control.
8. Consider buildings, floors and accessibility
Assess first-aid provision geographically as well as numerically.
Large premises may require separate consideration of multiple floors, buildings, workshops, compounds, restricted areas or remote parts of a site.
Also consider how easily emergency services can reach a casualty.
A trained first aider who appears on a spreadsheet but cannot reach the casualty promptly may offer relatively little practical protection.
10. Consider visitors, customers and members of the public
The Health and Safety (First-Aid) Regulations 1981 principally concern provision for employees. HSE nevertheless strongly recommends that employers consider non-employees when assessing first-aid needs.2
This can be particularly important in shops, hospitality, leisure, community organisations, churches, education, healthcare environments and other public-facing workplaces.
A business might employ only a small number of people while hundreds of customers, visitors or service users pass through its premises.
Employee numbers therefore do not always tell the whole practical story.
11. Review what first-aid provision already exists
Before deciding what more you need, establish what the organisation already has.
This may include appointed persons, EFAW or FAW-trained first aiders, specialist training, first-aid kits, travel kits, AEDs, eyewash arrangements, emergency showers, first-aid rooms, signage, communication systems and arrangements for contacting emergency services.
Do not just count what exists
Ask whether those resources are appropriate, accessible, maintained and available when they may actually be needed.
An organisation may own excellent equipment but keep it in the wrong location. It may have several trained first aiders but none on a particular shift. It may own an AED while employees have no idea where to find it.
12. Identify the gaps
Compare the organisation’s current arrangements with what the assessment indicates it actually needs.
Possible gaps include insufficient first-aider cover, unsuitable training levels, inadequate holiday or sickness cover, weak provision across separate buildings, unsuitable equipment, poor emergency communication or employees simply not knowing what to do when first aid is required.
At this stage, the assessment should begin to produce concrete decisions.
How many first aiders do you need?
There is no universal statutory employee-to-first-aider ratio.
HSE provides suggested levels of provision for lower- and higher-hazard workplaces, but these are starting points for the assessment rather than fixed legal ratios.7
We examine that question in detail in our separate guide:
How Many First Aiders Do I Need? →
What equipment and facilities do you need?
The needs assessment should also determine what first-aid equipment and facilities are appropriate.
There is no universal statutory first-aid kit that automatically suits every workplace. HSE says the needs assessment should inform kit contents.8
Workplaces with particular hazards may need additional or specialist provision.
Do you need a first-aid room?
Not every workplace needs one. HSE says employers should provide a suitable first-aid room where the needs assessment identifies that one is necessary.9
The question is not merely, “Do we own a first-aid kit?”
It is, “Does the provision correspond to the injuries and illnesses our assessment says we may need to deal with?”
Should a first aid needs assessment be written down?
HSE states that employers do not have to record the findings of the first-aid needs assessment itself. However, it also notes that keeping a record can help show how the employer decided on its first-aid arrangements.1
In practice, we consider a written assessment sensible for most organisations.
A written record creates an audit trail, shows what the assessor considered, explains why decisions were reached, identifies actions and provides a clear basis for later review.
Useful tools for your first aid needs assessment
Free Hive First Aid Needs Assessment Template
Work through your workplace, hazards, workforce, current provision, coverage, actions and review arrangements using our downloadable template.
Qualsafe First Aid Requirements Calculator
Use the Qualsafe calculator as a useful sense-check when considering likely first-aid personnel and training requirements.
No calculator can know that all your trained first aiders work on the same floor, that a particular department uses corrosive substances or that emergency access to one part of the site is difficult.
Professional judgment remains necessary.
Turn the assessment into an action plan
A useful needs assessment should finish with clear decisions.
For every identified gap, ask: what needs to happen, who is responsible and by when?
Actions might include training additional employees, changing the level of first-aid training, moving or adding equipment, improving signage, providing cover for another shift, agreeing arrangements with another occupier or improving emergency-access information.
Assign each action to a named person and give it a clear target date.
When should the assessment be reviewed?
Do not treat the first-aid needs assessment as permanent.
Review it when circumstances change or when there is reason to think the existing arrangements may no longer be adequate.
Relevant triggers include changes to staff numbers, shifts, premises, machinery, substances, work processes, organisational structure, remote working or the availability of trained personnel.
A significant accident or near miss may also expose a weakness that requires further assessment.
A planned periodic review is sensible, but significant change should trigger review without waiting for the scheduled date.
What should happen after a workplace accident?
The immediate priority is always the casualty.
Provide appropriate first aid, summon emergency assistance where necessary and make the immediate area safe.
Once the immediate situation is under control, record the incident appropriately, inform the relevant people and consider whether investigation, insurer notification or statutory reporting is required.
HSE recommends keeping useful information about incidents attended by first aiders, including when and where the incident occurred, the person involved, the nature of the injury or illness, the first aid provided and what happened afterwards.10
Accident records and the accident book
Organisations should have suitable arrangements for recording workplace accidents and first-aid incidents.
Where the statutory accident-book requirement applies, keep records securely because they contain personal information.11
Accident records do more than document what happened. They can reveal patterns connected with location, task, equipment, injury type, shift or department.
Those patterns should feed back into both general risk assessment and first-aid planning.
When does a workplace accident need to be reported under RIDDOR?
Not every workplace accident is reportable under RIDDOR.
RIDDOR is the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013.
The Regulations require the responsible person to report specified work-related deaths, injuries, occupational diseases and dangerous occurrences.12
Who should be informed internally after an accident?
There is no universal statutory list of job titles that every organisation must notify after every workplace accident.
Instead, the organisation should establish clear internal escalation arrangements that reflect its size, structure and the seriousness of the event.
Depending on the circumstances, relevant people may include the employee’s line manager, health and safety lead, HR, operations or facilities, senior management and the organisation’s insurer.
The nature and severity of the incident should determine the level of escalation.
Use accidents to improve the next assessment
Do not treat the accident record as the end of the process.
Ask whether the appropriate first aider was available, whether equipment was readily accessible, whether employees knew how to summon assistance and whether emergency services could reach the casualty without unnecessary delay.
Consider whether the incident revealed an injury or scenario that the original assessment had overlooked.
If an incident exposes a weakness, review the first-aid needs assessment.
New to risk assessment?
If you have been given responsibility for completing a first-aid needs assessment but are unfamiliar with risk assessment generally, developing those underlying skills may be useful.
Introduction to Risk Assessment
Our online Introduction to Risk Assessment course provides a practical introduction for people who need to understand the basic principles of workplace risk assessment.
IOSH Managing Safely®
Managers and supervisors with broader health and safety responsibilities may benefit from the more comprehensive IOSH Managing Safely® programme, covering hazards, risk assessment and control, incident investigation and wider management responsibilities.
Training can support the person carrying out the assessment, but it does not remove the employer’s responsibility to ensure appropriate first-aid arrangements are in place.
First Aid Needs Assessment: final questions
- Do we understand how the workplace actually operates?
- Have we spoken to the people who understand each work area?
- Have we considered the hazards and injuries or illnesses that could realistically occur?
- Have we considered workforce size, location and working patterns?
- Have we allowed for holidays, sickness and other absence?
- Have lone, travelling and remote workers been considered?
- Have separate buildings, floors and access issues been considered?
- Have relevant visitors and members of the public been considered?
- Have we reviewed accident and ill-health history?
- Does our existing provision correspond to the needs identified?
- Do employees know the first-aid arrangements?
- Have identified gaps been assigned actions, owners and dates?
- Do we know what would trigger a review?
If the answer to one of those questions is “we don’t know”, that may be exactly where the assessment requires further work.
Final thought
A good first-aid needs assessment is not principally about paperwork or achieving a particular ratio.
Its purpose is to understand the people, the work and the environment well enough to decide what should happen if somebody unexpectedly needs help.
That requires more than counting employees or buying a standard first-aid kit.
It requires judgment.
References and authorities
- Health and Safety Executive,
First aid: assess your first aid needs
. - Health and Safety (First-Aid) Regulations 1981, SI 1981/917, reg 3; Health and Safety Executive,
First aid at work: legislation
. - Health and Safety Executive,
Managing risks and risk assessment at work
. - Institution of Occupational Safety and Health,
guidance and resources on workplace risk assessment and risk management. - National Examination Board in Occupational Safety and Health,
guidance and learning materials on workplace risk assessment and risk management. - Royal Life Saving Society UK,
First Aid Needs Assessment Checklist
. - Health and Safety Executive,
First Aid at Work: The Health and Safety (First-Aid) Regulations 1981 – Guidance on Regulations (L74)
. - Health and Safety Executive,
What to put in your first aid kit
. - Health and Safety Executive,
First aid at work: frequently asked questions
. - Health and Safety Executive,
First aid incident records
. - Health and Safety Executive,
Reporting accidents and ill health at work
. - Health and Safety Executive,
RIDDOR – Reporting of Injuries, Diseases and Dangerous Occurrences Regulations
.
About this guidance
Author: Paul Deaves, The Hive Collaborative
Published: August 2026
Last evidence review: August 2026
Next scheduled review: August 2027, or earlier following a material change in legislation, HSE guidance or recognised professional practice.
This guidance distinguishes, where relevant, between statutory requirements, HSE guidance and wider professional good practice. Legislation and HSE material are treated as the primary authorities, with professional and training-body material used where it adds relevant practical context.
This article provides general workplace first-aid guidance and is not a substitute for legal, medical or workplace-specific competent advice. Employers remain responsible for assessing their own circumstances and determining adequate and appropriate provision.