Professional Indemnity Insurance Tax Deduction Calculator UK 2026

Find out exactly how much income tax, National Insurance and corporation tax you save on your PI insurance premium.

Calculate Your PI Insurance Tax Relief

Professional indemnity insurance is fully deductible as a business expense. This calculator works out your real net cost after tax relief — whether you are a sole trader, contractor or limited company director.

Enter the total annual premium as shown on your policy schedule.
Usually 100% for most professionals. Reduce if policy partly covers personal activities.
As a sole trader, PI insurance is a fully allowable business expense reducing income tax and Class 4 NI.

Frequently Asked Questions

Is professional indemnity insurance tax deductible in the UK?

Yes. PI insurance is a legitimate business expense and fully tax deductible for self-employed professionals and limited company directors. The entire premium (including the 12% Insurance Premium Tax) counts as an allowable expense, reducing your income tax or corporation tax bill. The deduction also reduces Class 4 National Insurance for sole traders.

How much professional indemnity insurance do I need in the UK?

Minimum cover depends on your profession and client contracts. Typical minimums: solicitors £2 million (SRA requirement), accountants and consultants £250,000–£1 million, IT contractors £500,000–£1 million. Many public sector and enterprise contracts require £5 million or more. Always check your professional body's rules and read every client contract carefully before agreeing to work.

Is PI insurance a business expense for contractors?

Yes. For limited company contractors, PI insurance is a fully deductible business expense against corporation tax (19% or 25% depending on profits). For sole trader contractors, it reduces your taxable profit, saving income tax at 20%, 40% or 45% plus Class 4 NI at 6% or 2%. Either way, the government effectively subsidises a significant portion of your premium.

Can employed professionals claim PI insurance tax relief?

In limited circumstances. An employed professional can only claim if their employer does not provide cover and they are contractually required to hold their own policy as a condition of employment. The cost must be wholly, exclusively and necessarily required for the employment — HMRC scrutinises this closely. Most employed professionals have PI cover provided by their employer as part of their terms of service.

Does professional indemnity insurance include Insurance Premium Tax?

Yes. All PI insurance premiums include Insurance Premium Tax at the standard rate of 12%. Unlike VAT, IPT cannot be reclaimed by businesses. However, IPT is included in the total premium figure and therefore forms part of the allowable deduction. Your insurer's policy documents will show whether the quoted premium is inclusive or exclusive of IPT — most quotes are inclusive.