What to Do When an Insurer Underpays Your Claim

Key Takeaways

• Check the policy and settlement calculation before accepting an offer.
• Independent valuations can expose unfair deductions or incorrect repair costs.
• An average clause may reduce a payment when the insured value is too low.
• You can escalate after the insurer’s final response.
• Court proceedings or alternative dispute resolution may suit larger or complex claims.

Why Insurers Underpay Claims

An insurer may offer less because it values damaged property differently from you. It may rely on lower repair rates, market guides, wear and tear deductions, policy limits, or exclusions. Errors can also arise when a loss adjuster overlooks part of the damage.

Some insurers make an early offer before the full cost becomes clear. Accepting it may leave you paying for later repairs, professional fees, or replacement items yourself. An insurance underpayment dispute often begins with a disagreement about evidence rather than whether the insured event happened.

The FCA requires insurers to handle claims promptly and fairly, provide reasonable guidance, avoid unreasonable rejection, and pay promptly once settlement terms are agreed. The regulator has warned firms against undervaluing insured items and found problems with some total-loss vehicle valuations.

“Insurance disputes are a specialised area of law and can often give rise to high value and complex disputes. Is it important to seek early legal advice if you feel that you have been let down by the insurer concerned and, or insurance brokers. Prompt action will ensure that any potential claim arising from an unsatisfactory insurance response is given the best possible chance of success, so that policyholders can obtain satisfaction and get on with their lives or businesses ”  - Tony Hill Head of Professional Negligence & Commercial Litigation

Underinsurance and the Average Clause

Underinsurance means the amount shown on your policy is lower than the full value at risk. An average clause allows the insurer to reduce a claim in the same proportion. This can affect buildings, contents, stock, machinery, and other business assets.

Assume your property should have been insured for £400,000 but the policy only covered £200,000. You insured 50% of the correct rebuild value, so the insurer may offer only 50% of a £100,000 covered loss. Your payment would fall to £50,000, even though the loss is below the policy limit.

Applying the clause may be unfair where the insurer set the amount, did not clearly ask for a full rebuild value, or failed to explain the consequences. The result depends on the sales process, policy wording, and information you supplied.

A broker may share responsibility if it recommended an unsuitable cover level. Keep advice emails, renewal documents, demands and needs statements, and call recordings. These records can show whether you relied on professional advice.

Check the Offer Before Accepting

Read the insurer’s calculation before agreeing to any settlement. Ask how it valued each item, which deductions it applied, and what evidence supports the figures. Check whether the offer includes VAT, professional fees, debris removal, alternative accommodation, or business interruption losses where covered.

Look carefully for wording such as “full and final settlement”. Acceptance may prevent you from reopening the same loss when further damage or costs emerge. Tell the insurer in writing when you accept only an interim payment or an undisputed part of the claim.

Gather evidence that shows the realistic cost of putting you back in your pre-loss position. This may include:

• Independent repair or replacement quotes.
• Surveyor, engineer, or specialist reports.
• Recent photographs and maintenance records.
• Receipts, invoices, and proof of ownership.
• Comparable vehicle or property listings.
• Stock records and business accounts.
• Evidence of additional expenses caused by delay.

Insurance policies normally aim to indemnify you rather than improve your position. This means the settlement should generally place you as close as possible to where you stood before the insured loss. An insurance claim underpaid because of an inaccurate valuation can be challenged with reliable market or expert evidence.

How to Challenge an Underpayment

Write to the claims handler and identify each part of the calculation you dispute. Attach your evidence and explain why your figure better reflects the policy terms and actual loss. A clear counteroffer is stronger than a general statement that the payment feels too low.

Set out:

• The policy number and claim reference.
• The amount offered by the insurer.
• The amount you believe should be paid.
• Each disputed deduction or valuation.
• The documents supporting your calculation.
• The outcome you want and a reasonable response date.

Keep communication in writing where possible. Record telephone dates, names, and important statements in a follow-up email. A detailed paper trail will help if you later dispute insurance payout handling through other channels.

Use the insurer’s formal complaint process if negotiation stalls. Label the message as a complaint and ask for a final response. FCA complaint rules expect firms to address almost all complaints through a final response within eight weeks.

Legal Action Against Insurers

A court claim may be needed when the loss is high, the insurer disputes expert evidence, or negotiations have failed. The usual claim is for breach of the insurance contract. You must show that the policy covers the loss and that the insurer owes more than it paid.

Possible legal routes include:

• Breach of contract claims. You may claim the unpaid amount where the insurer has not applied the policy terms correctly.
• Damages for late payment. Section 13A of the Insurance Act 2015 requires insurers to pay valid claims within a reasonable time. An unreasonable delay may support a claim for additional losses caused by the late payment.
• Negotiation and mediation. These routes can resolve disputes without the cost and risk of a full trial.
• Expert determination. An independent expert may decide a technical issue such as valuation, repair cost, or the extent of damage.
• Court proceedings. Litigation may suit high-value disputes involving complex policy wording, broker advice, or significant business losses.

Guidance on choosing between court and ADR can help you compare the available options. Specialist commercial litigation legal support can also help assess limitation dates, organise expert evidence, and pursue the unpaid amount.

Ready to Challenge Your Insurer?

An insurance claim underpaid by thousands of pounds can place further pressure on you after an already difficult event. Insurers may reconsider when they receive a clear calculation, independent evidence, and a properly framed complaint. Accepting an early low offer is not your only option.

Wealth Recovery Solicitors is an SRA-regulated law firm with experience in financial disputes and commercial litigation. Its team combines legal analysis with forensic and evidential work to assess complex claims. No win, no fee arrangements may be available in suitable cases, and the firm reports recovering more than £66 million for clients.

You can discuss your insurance dispute through a confidential, no-obligation assessment. Bring the policy, settlement offer, complaint correspondence, valuations, and supporting invoices. The team can assess whether negotiation, a complaint, ADR, or litigation offers the strongest route.