A sole trader is personally liable for every business debt and claim, so insurance is the only shield between a customer claim and personal assets. A limited company separates personal and business liability, but the £5 million employers liability minimum, contract-required public liability and professional indemnity apply to both structures the moment they trade.
TL;DR · LAST REVIEWED Last reviewed 7 September 2026
- Sole traders: unlimited personal liability, insurance is the only protection for home and savings
- Limited companies: liability capped at company assets, but directors can still be personally liable for negligence and wrongful trading
- Insurance requirements are driven by activity and contracts, not by legal structure
KEY FACTS
- HMRC: around 3.1 million sole traders and 2 million active companies file returns each year (verify latest)
- Companies Act 2006 s.172 and s.174: directors' duties and personal exposure for breach
- Insolvency Act 1986 s.214: wrongful trading can pierce limited liability
- Employers liability £5 million minimum applies equally; single-director companies with no other staff are exempt
- Directors and officers insurance exists only for companies; sole traders cannot buy it
- Public liability and professional indemnity requirements are set by clients and regulators regardless of structure
How liability works for a sole trader
As a sole trader, you and your business are one legal person. There is no legal separation between your business assets and your personal assets. If a customer takes legal action against your business, your home, savings and personal vehicles can be used to settle the claim.
Under the law, a sole trader is personally liable for all debts and obligations of the business. This means that if a customer is injured on your premises, or your work causes damage to their property, the claim is made against you as an individual. Your personal assets are not protected from business creditors.
If your business cannot pay its debts, you may face personal bankruptcy proceedings. Bankruptcy is a court process that deals with individuals who cannot pay what they owe. This differs from corporate insolvency, which applies to limited companies. A bankruptcy order can lead to your assets being sold to repay creditors, and it can restrict your ability to act as a company director in the future.
Public liability insurance is the main protection for a sole trader against customer claims. It covers the cost of legal defence and compensation if a third party is injured or their property is damaged. Without this cover, you would have to meet these costs from your own pocket.
How liability works for a limited company
A limited company is a separate legal person from its directors and shareholders. The company owns its assets and owes its debts. Your liability is limited to the amount you have agreed to pay for your shares, plus any personal guarantees you have signed.
When you incorporate, the company enters into contracts in its own name. If a customer makes a claim against the company, the claim is against the company's assets, not your personal property. This is the core benefit of limited liability. Your personal home and savings are generally protected from business claims.
However, limited liability is not absolute. Under the Insolvency Act 1986 s.214, if you continue trading when you know the company cannot avoid insolvent liquidation, you can be personally liable for the company's debts. This is known as wrongful trading. The court can order you to contribute to the company's assets from your personal funds.
Personal guarantees are another route to personal exposure. If you sign a personal guarantee for a business loan or lease, the lender can pursue you personally if the company defaults. Negligence claims against you personally, rather than the company, can also expose you. The Companies Act 2006 s.174 sets out the duty of care, skill and diligence that directors must exercise. A breach of this duty can lead to personal liability.
Insurance that applies to both
Several core insurance policies are relevant whether you operate as a sole trader or through a limited company. Public liability, professional indemnity and employers liability cover the same underlying risks, although the policyholder name changes.
Public liability insurance covers claims from third parties for bodily injury or property damage caused by your business activities. This applies equally to sole traders and companies. Many clients and regulators require you to hold a minimum level of this cover before they will work with you.
Professional indemnity insurance protects against claims that your advice or professional services caused a client financial loss. This is essential for consultants, designers and other service providers. The requirement for this cover is usually set by your client contract or professional body, not by your business structure.
Employers liability insurance is compulsory once you employ staff. The Employers Liability (Compulsory Insurance) Act 1969 requires a minimum of £5 million cover. This applies to both sole traders and limited companies. A single-director limited company with no other employees is exempt from this requirement. Contents, tools, stock and business interruption cover also apply to both structures, protecting your physical assets and income if your business is disrupted.
Insurance that only makes sense for a company
Directors and officers insurance, key person cover and certain legal expenses policies exist only for limited companies. These products protect the company and its directors from risks that do not arise for sole traders.
Directors and officers (D&O) insurance covers the personal liability of directors for decisions made on behalf of the company. It responds to claims alleging breach of duty, neglect or wrongful acts in their management role. A sole trader cannot buy this cover because they do not hold a directorship in a separate legal entity. The Companies Act 2006 s.172 requires directors to act in the way they consider, in good faith, would be most likely to promote the success of the company. A claim under this duty can trigger D&O cover.
Key person insurance protects the company against the financial impact of losing a critical employee or director. If that person dies or becomes unable to work, the policy pays out to the company. This is relevant only where the business depends on an individual whose loss would threaten its viability. A sole trader cannot insure their own loss in this way because the business and the individual are the same.
Legal expenses insurance for employment disputes is more relevant for companies because they are more likely to face tribunal claims from staff. A sole trader with no employees has no exposure to employment tribunal claims. Companies also use legal expenses cover for tax investigations or contract disputes, which can be more complex due to the separate legal personality.
What changes on the day you incorporate
On the day you incorporate, your insurance policies must be re-issued in the company name. The legal entity that holds the policy changes, and any claim must be made by the company, not by you personally.
Your existing policies, such as public liability and professional indemnity, are written in your personal name as a sole trader. When you form a company, these policies no longer match the legal entity that carries the risk. You must contact your insurer and request that the policy be transferred to the company. This may involve a new application because the insurer will assess the company's risk profile separately.
Contracts and certificates also need updating. Your client contracts should be novated or re-signed so that the company, not you personally, is the contracting party. Insurance certificates must show the company name as the policyholder. If you make a claim under a policy that still names you as a sole trader, the insurer may reject it because the company was the party that suffered the loss.
Vehicle insurance requires particular attention. If you use a vehicle for business, your policy must cover business use. When you incorporate, the vehicle may be owned by you personally or by the company. If the company owns the vehicle, the policy must name the company as the insured. If you own the vehicle and lease it to the company, you need to declare this arrangement to your insurer. A policy that covers you as a sole trader for business use does not automatically cover you as a director driving a company-owned vehicle.
Tax and cost considerations that interact with cover
Insurance premiums are tax-deductible for both sole traders and limited companies, but the way you claim the deduction differs. Relevant life policies and certain other covers offer different tax advantages depending on your structure.
For a sole trader, insurance premiums are deducted from your trading income when calculating your taxable profit. You claim them as an allowable business expense on your self assessment tax return. For a limited company, premiums are deducted from the company's profits before corporation tax is calculated. The company pays the premium and claims the deduction in its corporation tax return.
Relevant life policies are a specific type of life insurance that a company can take out on the life of an employee or director. The premiums are deductible for corporation tax purposes, and the policy does not count as a benefit in kind for the individual. A sole trader cannot use a relevant life policy because there is no separate employing entity. A sole trader's life insurance premiums are not deductible as a business expense.
IR35 rules affect contractors who provide their services through an intermediary, such as a personal service company. If IR35 applies, you pay income tax and national insurance on your fees as if you were an employee. This changes the net cost of your insurance because you may not be able to claim the same deductions. Umbrella arrangements, where you are employed by an umbrella company, also change how insurance is arranged. The umbrella company typically provides employers liability cover, and your personal cover may need to be adjusted.
Does a sole trader need business insurance if they have no employees?
There is no legal requirement for a sole trader with no employees to hold any specific business insurance. However, public liability insurance is often required by clients or professional bodies. Without it, you are personally liable for any claims against your business.
Is a limited company director personally liable for a customer claim?
Generally, no. The company is the legal entity that contracts with the customer, so a claim is made against the company's assets. However, personal liability can arise if you have signed a personal guarantee, acted negligently in a way that causes a separate duty of care, or engaged in wrongful trading under the Insolvency Act 1986 s.214.
Do I need to change my insurance when I incorporate?
Yes. Your policies must be re-issued in the company name. If you make a claim under a policy that still names you as a sole trader, the insurer may reject it because the company was the party that suffered the loss. Vehicle insurance and professional indemnity policies are particularly affected.
Can a sole trader get directors and officers insurance?
No. Directors and officers insurance covers the personal liability of directors of a company. A sole trader does not hold a directorship in a separate legal entity, so this type of cover is not available. Public liability and professional indemnity insurance are the relevant covers for a sole trader.
Is employers liability insurance compulsory for a one-director limited company?
No. A single-director limited company with no other employees is exempt from the requirement to hold employers liability insurance under the Employers Liability (Compulsory Insurance) Act 1969. If you employ anyone else, including a family member, you must have cover of at least £5 million.
RELATED GUIDES
DISCLAIMER
This guide is editorial information, not financial advice. Kael Tripton Ltd takes no commission on any product mentioned and does not route enquiries to providers. Check policy documents and the FCA register before buying.
Frequently asked questions
Does a sole trader need business insurance if they have no employees?
There is no legal requirement for a sole trader with no employees to hold business insurance. However, clients or regulators may require public liability or professional indemnity cover. Without insurance, you are personally liable for any claims, so cover is often advisable to protect your assets.
Is a limited company director personally liable for a customer claim?
Generally, a director is not personally liable for customer claims against the company, as limited liability protects personal assets. However, personal liability can arise if you breach duties under the Companies Act 2006, such as acting beyond your powers or causing wrongful trading under the Insolvency Act 1986.
Do I need to change my insurance when I incorporate?
Yes, when you incorporate, you should review your insurance. Policies held as a sole trader may not cover the company or your role as director. You may need to transfer public liability and professional indemnity policies to the company and consider directors and officers insurance for personal protection.
Can a sole trader get directors and officers insurance?
No, directors and officers insurance is only available to companies and their directors. Sole traders cannot purchase this cover because they do not have a separate legal entity or board of directors. Instead, sole traders rely on public liability and professional indemnity insurance.
Is employers liability insurance compulsory for a one-director limited company?
Employers liability insurance is compulsory if you employ staff, but a one-director limited company with no other employees is exempt. If you are the sole director and also the only employee, you do not need this insurance. However, you must still meet the minimum £5 million cover if you hire anyone else.
SOURCES
- Companies Act 2006 - accessed 7 September 2026
- Insolvency Act 1986 s.214 - accessed 7 September 2026
- GOV.UK: Set up as a sole trader - accessed 7 September 2026
- HSE: Employers Liability HSE40 - accessed 7 September 2026