Self-Employed Accident Risks: Common Calling and Undertaking
Self-Employed Accident Risks: Common Calling and Undertaking. If you are genuinely self-employed, accident risk is not only about whether you can claim if you are injured.
It is also about what you are personally responsible for.
A self-employed person may be expected to understand the ordinary risks connected with their own trade, skill, work or undertaking. That can matter if they are injured while working, and it can also matter if someone else is injured because of the way the work was carried out.
This article explains two important ideas: common calling and undertaking
These ideas help explain why self-employed people should think carefully about contracts, insurance, working methods, site arrangements and responsibility before accepting work.

Self-Employed Accident Risks: Common Calling and Undertaking
First question: are you really self-employed?
Before looking at common calling or undertaking, the first question is whether you are genuinely self-employed at all.
The label “self-employed” is not always the final answer.
If another business controlled your work, told you where to go, directed what to do, used its own systems, provided equipment, or treated you as part of its operation, the legal position may be different.
In that situation, responsibility may not sit with you alone. The business that controlled the work may carry responsibility for risks created by the way the work was organised.
For that first question, read our guide:
Injured at Work Self Employed – What Are Your Rights?
If you are genuinely self-employed, responsibility can switch
If you are genuinely self-employed, and the relationship is not closer to employment, responsibility can switch back to you.
That applies in two directions.
First, if you are injured while carrying out your own work, you may need to consider whether the injury was caused by someone else’s negligence or by a risk connected with your own work, tools, method or trade.
Second, if someone else is injured or suffers damage because of your work, they may look to you for responsibility.
That is why self-employed accident risk is not only about making a claim after an accident. It is also about understanding whether someone else could make a claim against you.
For more on that wider responsibility question, read:
Accident at Work Self Employed – Who Is Responsible?
What is a common calling?
A common calling means a recognised trade, profession, occupation or skilled activity.
In simple terms, if you are hired because you have a particular skill, the law may expect you to understand the ordinary risks connected with that skill.
For example:
an electrician should understand electrical isolation risks;
a roofer should understand height and ladder risks;
a gas engineer should understand gas safety risks;
a cleaner should understand slip risks created by cleaning work;
a builder should understand tool, material and site risks;
a driver should understand road, loading and unloading risks.
This does not mean that a client can ignore every danger.
A client, contractor or site controller may still be responsible if they create a hazard, give unsafe instructions, provide defective equipment, hide important information, or fail to deal with a risk under their control.
But where the risk is ordinary for the trade itself, the self-employed person may be expected to recognise it and guard against it.
What does undertaking mean?
Undertaking is about the work you agree to do.
If you accept a job as a self-employed person, you are not simply turning up as labour. You are taking on responsibility for carrying out that work safely and competently.
That may include responsibility for:
assessing whether the work can be done safely;
using suitable tools and equipment;
following safe methods;
applying your trade knowledge;
warning about risks you identify;
refusing work that cannot safely be done;
avoiding danger to clients, workers, visitors or the public.
This is important because the person who undertakes the work may be expected to manage the ordinary risks of that work.
If the accident arises from the way you carried out your own task, your own method, or your own trade risk, responsibility may come back to you.
Example: self-employed electrician
A self-employed electrician is hired to repair wiring.
The client does not interfere with the work. The client does not give an unsafe instruction. The client does not provide defective equipment. The electrician chooses the method and carries out the work using their own skill.
If the electrician fails to isolate the power and is injured, the question may be whether that risk belonged to the electrician’s own trade and undertaking.
Electrical safety is an ordinary risk of electrical work.
In that situation, the client may say that the electrician was hired precisely because they had the skill to manage that risk.
Example: self-employed roofer
A self-employed roofer agrees to repair a roof.
The client does not control the method, does not supply the ladder, and does not instruct the roofer to use an unsafe system.
If the roofer chooses an unsafe ladder, fails to use proper precautions, and falls, the risk may be linked to the roofer’s own undertaking.
Roofing involves obvious risks connected with height.
That does not mean a client can never be liable. If the client gave unsafe instructions, hid a known hazard, or created a dangerous condition, the position may be different.
But if the risk belongs to the work the roofer undertook, responsibility may not automatically sit with the client.
Example: injury to someone else
A self-employed contractor leaves tools, cables or materials in a walkway.
A visitor trips and is injured.
If the contractor controlled their own tools and working area, the injured person may argue that the contractor created the danger.
This is the other side of self-employed accident risk.
It is not only about whether you can claim if you are hurt.
It is also about whether you may be liable if your work causes injury or damage to someone else.
Why this matters for subcontractors and independent contractors
The position can become more complicated where a business uses subcontractors or independent contractors.
Sometimes, a business may still be liable for risks connected with contractors, especially where it controls the work, creates the risk, gives unsafe instructions, or uses contractors as part of its own operation.
In other situations, the genuinely independent contractor may carry responsibility for their own work.
For more on business liability for contractors and subcontractors, read:
Can a Business Be Liable for a Subcontractor or Independent Contractor?
The practical question: whose risk was it?
In many self-employed accident situations, the key question is:
Whose risk was it?
Was it a risk created by the client or hirer?
Was it a risk created by the site controller?
Was it a risk caused by unsafe instructions?
Was it a risk caused by defective equipment supplied by someone else?
Or was it a risk connected with your own trade, method, tools, undertaking or calling?
That distinction matters because it may decide who is responsible.
Why insurance matters
If you are genuinely self-employed, insurance is not optional paperwork. It is part of business protection.
You may need cover for two directions of risk:
injury to yourself; and
injury or damage caused to others.
Depending on your work, relevant cover may include:
public liability insurance;
professional indemnity insurance;
personal accident cover;
tools and equipment cover;
contractor or trade-specific insurance;
vehicle or courier insurance;
employers’ liability insurance if you use staff or helpers.
Do not assume that one policy covers every situation.
You should check what the policy actually covers, what exclusions apply, and whether your work is described correctly.
Why contract terms matter
A written contract can help show who was responsible for what.
Important points may include:
what work you agreed to do;
who controlled the site;
who supplied tools and equipment;
who gave instructions;
who was responsible for safety precautions;
whether you could refuse unsafe work;
what insurance was required;
whether indemnity clauses apply;
who carries responsibility if something goes wrong.
Without written terms, people often disagree after an accident.
The client may say the risk belonged to you.
You may say the risk was created by the client.
Clear contract terms can reduce that dispute.
Evidence to keep
Evidence is important because responsibility often depends on what happened in practice.
Useful evidence may include:
contracts and terms;
messages and emails;
job sheets;
written instructions;
photographs of the site;
photographs of tools or equipment;
risk assessments;
insurance documents;
accident records;
witness details;
invoices and payment records.
Evidence helps answer whether the risk belonged to the client, the site, the business that controlled the work, or your own trade and undertaking.
Practical checks before accepting work
Before accepting self-employed work, ask yourself:
Am I genuinely self-employed on this job?
Who controls the work?
Who controls the site?
Who gives instructions?
What risks belong to my trade?
What work am I undertaking?
Could my work injure someone else?
Do I have suitable insurance?
Does my contract explain responsibility clearly?
What should I refuse if the work cannot be done safely?
These are not only legal questions.
They are business protection questions.
Need advice about self-employed injury risks?
Self-employed accident risk needs careful thought.
You may need to understand whether you are genuinely self-employed, whether responsibility sits with you or someone else, whether your contract protects you, and whether your insurance is suitable.
For practical advice on self-employed injury risks, responsibilities, contracts and insurance protection, visit:
Self-Employed Injury Risks
Final point
If you are genuinely self-employed, you may be expected to understand the risks connected with your own trade, skill and undertaking.
That can affect both sides of the situation:
If you are injured, was it someone else’s risk or your own trade risk?
If someone else is injured, could your work or method make you responsible?
The safest approach is to check the position before work starts.
That means understanding your status, your responsibilities, your insurance, your contract terms and the risks connected with the work you undertake.






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