Contractor insurance: what you need, what's optional, and what to prioritise
The Reality
When you operate via a limited company, insurance is your responsibility. There's no employer providing death-in-service benefit, no occupational sick pay, no HR department ensuring your PI cover meets contract requirements. Most contractors know they need some insurance — but piecing together what, how much, and in what order of priority is rarely straightforward.
Required vs optional contractor insurance
The clarity you need upfront:
Usually required by contract
Public liability insurance
Employer's liability insurance (if you have employees or subcontractors)
Essential but not contractually required
Relevant life policy (if you have dependants)
Recommended
Business equipment / cyber liability (depending on your work)
Professional indemnity insurance
PI insurance covers claims for financial loss caused by your professional errors, negligent advice, or omissions. You must have it before your first contract starts. Most clients require PI as a condition of the contract — typical cover levels are £1m for standard work, £2m for financial services or large enterprise clients.
Public liability insurance
What it covers: claims for bodily injury or property damage to third parties arising from your business activities. Why contractors need it: clients working on-site typically require it; it's also bundled with PI in most contractor combined policies. Usual cover level: £1m–£5m. Public liability is straightforward and almost always paired with PI in a single combined policy.
Employer's liability insurance
Legally required if your limited company has any employees other than the sole director (including subcontractors in some circumstances). Fine for non-compliance: up to £2,500/day. Most one-person companies don't need it — but flag it clearly so contractors with subcontractors or a second director don't overlook it.
Income protection insurance
Income protection pays a monthly income if you can't work due to illness or injury. The sick pay gap opens the moment you start contracting. Limited company contractors have no employer sick pay and no Statutory Sick Pay protection. This is the most significant personal financial risk for most contractors.
Relevant life policy
A relevant life policy is tax-efficient life cover arranged through your limited company. Premiums are a corporation tax deductible expense, and the benefit is paid tax-free to your dependants. It's the contractor's equivalent of death-in-service benefit from a permanent employer.
Critical illness cover
Critical illness cover pays a one-off tax-free lump sum if you're diagnosed with a serious condition. It complements income protection insurance — clearing a mortgage or major debt removes financial pressure while you focus on recovery.
What to prioritise if you're starting out
Honest sequencing:
PI insurance — immediately. You need it before you start your first contract. No exceptions.
Public liability — at the same time. Almost always bundled with PI; get both in a combined policy.
Income protection — as soon as the first contract is running. The sick pay gap opens the moment you stop being employed. This is the most significant personal financial risk for most contractors.
Relevant life policy — once your company is established. Set it up in year one if you have dependants; the tax efficiency makes it a no-brainer once you understand it.
Critical illness cover — alongside or shortly after IP. Complements IP; completes the protection package.
What contractor insurance typically costs
Indicative all-in annual cost for a typical IT contractor:
| Product | Low Range | Typical Range | High Range |
|---|---|---|---|
| PI + PL combined | £300 | £500 | £700 |
| Income protection | £600 | £1,050 | £1,500 |
| Relevant life policy | £360 | £540 | £720 |
| Critical illness | £400 | £650 | £900 |
| Total annual cost: £1,660–£3,820 | |||
What this means in context: On a £500/day contract (£115,000/year gross fees at 46 weeks), comprehensive cover is 1.5–3.3% of gross income.
FAQ: Contractor Insurance
What insurance does a limited company contractor need?
At minimum, most contracts require professional indemnity insurance and public liability insurance before you start work. Beyond that, income protection insurance, a relevant life policy (if you have dependants), and critical illness cover together replicate the protection package a permanent employee would expect from an employer.
Is contractor insurance tax deductible?
Professional indemnity and public liability insurance are legitimate business expenses paid by the limited company and are corporation tax deductible. A relevant life policy paid by the company is also a corporation tax deductible expense. Income protection and critical illness cover are personal products, typically paid from post-tax income.
How much does contractor insurance cost in total?
A comprehensive contractor insurance package — PI, public liability, income protection, relevant life policy, and critical illness cover — typically costs between £1,700 and £3,800 per year for a standard IT contractor. PI and public liability combined policies often cost £300–£700/year; the protection products (IP, RLP, CIC) make up the balance.
Do I need employer's liability insurance as a sole director?
If you are the only director of your limited company and have no employees or subcontractors, employer's liability insurance is not legally required. If you take on any employees — including a second director, an employee, or certain subcontractors — it becomes a legal requirement.
When should I take out contractor insurance?
Professional indemnity and public liability insurance should be in place before your first contract starts — clients require it from day one. Income protection should follow as soon as possible — the sick pay gap opens the moment you're contracting. A relevant life policy and critical illness cover can follow once the company is established, but earlier is better for both (premiums are lower when you're younger and healthier).
Specialist guides in this cluster
Related guides
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