What are your chances? Ombudsman uphold rates explained

Before you spend months fighting your insurer, it is worth knowing the base rates. The Financial Ombudsman Service publishes complaint volumes and uphold rates every year, and they tell a clear story: home insurance complainants win more often than almost anyone else in financial services, and some kinds of complaint win far more often than others.

The headline numbers

The latest full-year data from the ombudsman's annual complaints report and its buildings insurance release:

Two things stand out. Home insurance complaints are rising fast, and they succeed distinctly more often than the average complaint. If your insurer's final response invited you to "contact the Financial Ombudsman Service if you remain dissatisfied", these numbers are why that sentence should not reassure them.

Why complaints are rising

The complaint surge is not a mystery; it tracks what is happening to claims themselves.

Claim volumes and costs have jumped: insurers paid out a record £3.4 billion on more than 560,000 home insurance claims in 2025, with the average claim up 15% year on year to around £6,000 and the average flood payout near £30,000 (ABI). More claims, bigger claims, and stretched claims departments mean more delays, and more disputes.

At the same time, acceptance rates have fallen. FCA data shows home insurance claim acceptance dropped from roughly 93% to about 71% over five years (NimbleFins analysis of FCA data), and the FCA's own review of claims handling, prompted by a Which? super-complaint, found failings serious enough to open enforcement action against 9 of the 23 firms reviewed (FCA). Among the findings: some home insurers had no criteria at all for deciding when a cash settlement was appropriate.

Read together, the regulator's findings and the ombudsman's uphold rates say the same thing: a substantial minority of adverse claim decisions do not survive independent scrutiny. That is the context for every rejection letter and low offer.

What people complain about

The ombudsman's breakdown of buildings insurance complaint reasons (FOS annual data):

• Claim declined, 41% of complaints. The insurer said no: wear and tear, gradual damage, an exclusion, alleged non-disclosure.
• Delay, 23%. The claim dragged on without decision or payment.
• Claim value, 8%. The insurer paid, but less than repair or replacement actually costs.

Across the wider insurance sector, claims handling dominates: analysis of five years of ombudsman data found 71% of insurance complaints are claims-related (Insurance DataLab, via Insurance Times). The dispute is rarely about buying insurance. It is about what happens when you use it.

That pattern is mirrored upstream: the FCA found insurers accepted only 74% of home contents claims against 99% for motor (FCA), a gap that feeds directly into the complaint volumes above.

Which complaints succeed, and why

Uphold rates are averages across very different disputes. Reading the ombudsman's published decisions, the pattern is consistent:

Strongest ground: documented delay

At 57% upheld, delay is the standout. The reason is structural: a delay complaint is proved by a diary. Dates of calls, weeks of silence and missed promises: the evidence is objective and the insurer usually cannot contradict its own file. Which? found unfair delay featured in 38% of all upheld insurance complaints in 2023, the highest since 2019 (Which?). If your claim has drifted, read your rights when a claim takes too long, and start the chronology today.

Strong ground: wording disputes

Complaints that turn on what the policy actually says (whether damage was storm or wear and tear, whether an exclusion was fairly applied, whether a rejection followed the rules on misrepresentation) do well when the policyholder engages with the wording rather than around it. The ombudsman applies its own published approach to storm damage, gradual causes, and cash settlements, which is often more consumer-favourable than the insurer's reading. Knowing your wording is the entry fee: upload your policy to Roci to see what is covered, excluded, and conditional before you argue the point.

Weaker ground: pure valuation disagreements

"I think it is worth more" without evidence performs poorly; claim-value complaints are both the smallest category (8%) and the hardest to win unsupported. What shifts them is independent evidence: itemised contractor quotes at real market rates, a surveyor's scope of works, proof that a cash settlement would not actually fund the repair. The ombudsman's position is that a settlement should reflect the cost to you, not the insurer's discounted contractor rates.

What "upheld" really means

An honest calibration: uphold does not mean jackpot.

• Many upholds are partial: the ombudsman agrees the insurer got something wrong and adjusts the outcome, without giving the complainant everything sought.
• Redress is compensatory, not punitive: the standard is putting you where you should have been, plus interest (typically 8% simple) and distress and inconvenience compensation in published bands from around £100 to £5,000+.
• A 41% uphold rate also means most complaints fail. The failures are disproportionately cases with thin evidence, missed deadlines, or complaints about outcomes the policy genuinely does not cover.

The realistic prize is a fair settlement, faster than court, at zero cost, not a windfall.

How to be in the winning 40%

The variables you control map directly onto the uphold patterns:

1. Document everything, from today. The 57% delay uphold rate belongs to people with dates.
2. Argue from the wording, not from fairness in the abstract. Quote clauses; attach definitions.
3. Buy evidence, not representation. An independent report costs a fraction of a claims firm's percentage and moves the needle more.
4. Follow the process: a proper complaint to your insurer first, then the ombudsman referral inside the six-month window.
5. Ask for something specific. Investigators resolve well-defined disputes faster and more favourably than open-ended grievances.

Where your dispute fits

To place your own case in the statistics, match the insurer's position to the complaint category it will fall into:

• "Not covered, wear and tear / gradual damage." The largest category (claim declined, 41% of complaints) and one of the most winnable when the cause of loss is genuinely sudden. The battleground is the ombudsman's three-part storm test and the burden of proving an exclusion, covered in fighting a wear-and-tear rejection.
• "We accept the claim, but here is a low offer." A claim-value dispute (8% of complaints). Winnable with independent quotes and the ombudsman's cost-to-you approach (see challenging a low offer).
• "Take this cash settlement." Often really a value dispute in disguise: cash calculated at the insurer's discounted rates rather than what the repair costs you. The regulator's findings above make this a live pressure point (see cash settlement or repair).
• "We are still looking into it," for months. The 57% category. Build the chronology and cite the reasonable-time rules in claim taking too long.
• "You failed to tell us something." Misrepresentation rejections turn on whether your answer was honest and careful, and the law here is more protective than most rejection letters admit, as the pillar guide explains.

One complaint can span categories: a declined claim that also took five months is both a decline and a delay complaint, and should be argued as both.

What the numbers cannot tell you

Two honest caveats before you weigh your own case against the averages.

First, uphold rates describe the complaints that reached the ombudsman, not all grievances. Complaints that insurers resolve at the internal complaint stage, often the well-evidenced ones, settled precisely because the insurer can see how they would fare, never appear in these figures. A strong case may therefore be more likely to succeed than the headline rate suggests, and to succeed earlier.

Second, category averages hide the spread inside them. A "claim declined" complaint where the insurer misapplied the storm test is a different animal from one where the policy plainly excludes the loss; both sit in the same 41%. The statistics set expectations; the wording and the evidence decide cases.

The numbers on this page are refreshed as the ombudsman publishes new annual data. They are averages, and your case is not average; the fastest way to find out where it stands is to understand exactly what your policy says and what the insurer's stated reason actually amounts to. That is the gap Roci exists to close.