UK comprehensive car insurance premiums fell by £6 in the three months to August 2026 to an average of £713 - a quarterly decline of 1% according to the latest Confused.com Car Insurance Price Index in association with WTW. The national average is now £282 below its December 2023 peak of £995. But the headline stability is doing a lot of work to obscure a market moving in opposite directions by region and by age.
Tim Rourke, EMEA P&C leader at WTW's Insurance Consulting and Technology practice, was direct about what sits beneath the stable surface. "Drivers have benefited from a more stable pricing environment in 2026, but the underlying cost of settling motor claims remains under pressure," he said. "Increasing repair complexity, rising repair costs and ongoing inflation uncertainty continue to create challenges for insurers to navigate."
Price deflation has slowed markedly this year. Premiums rose in four of the first eight months of 2026 - in February, April, May, and June - before falling in July and August to produce the modest quarterly decline. The direction of travel is neither consistently up nor consistently down.
The national average of £713 does not reflect what individual brokers' clients are paying. The regional data reveals a market moving in different directions simultaneously.
The largest quarterly falls were in Leeds and Sheffield, where premiums dropped 3% to £778, followed by Manchester/Merseyside (-2% to £790) and South Wales (-2% to £558). At postcode level, the City of London and Halifax both fell 6% in the quarter - the sharpest local declines recorded. Northern Ireland recorded a 4% quarterly increase, taking average premiums to £1,059 - now the second most expensive region in the UK, ahead of Outer London (£888). The South West of England rose 3% to £520.
West Central London remains the UK's most expensive postcode at £1,281, up 1% on the quarter. Llandrindod Wells is the cheapest at £474 - now the only postcode in the UK where average premiums remain below £500, after 1-4% price rises pushed Shrewsbury, Torquay, Dorchester, and Exeter above that threshold.
The quarterly data reveals a significant age-related divergence. Drivers aged 51 saw the largest fall, with premiums down 5% to £582. Those aged 47 fell 3% to £634.
By contrast, drivers aged 17 and 19 faced quarterly increases of 4%, taking their average premiums to £1,755 and £1,853 respectively. For brokers with younger clients or fleet policies covering under-25 drivers, the gap between the national average and what those drivers are actually paying is large enough to warrant a specific conversation about cover adequacy and excess structures at renewal.
Steve Dukes, CEO at Confused.com, identified a dynamic that personal lines brokers should be tracking. "Car insurance prices are more stable now than they have been in recent years,” he said. “At the same time, we know many customers are also seeing their renewal price increase, which can lead to more customers shopping around. And this is a clear opportunity for insurers to be competitive when it comes to new business pricing. Insurers that are using data and customer insight to create genuine choice and value for consumers will grow in this market."
A market where the headline average is flat but individual renewal prices are rising creates the conditions for client churn. For personal lines brokers, the risk is not that the market is moving against them - it is that clients who have not heard from their broker ahead of renewal will go looking on their own. The regional and demographic breakdowns within this index, compiled from over six million customer quotes per quarter, are the kind of specific intelligence that should be driving proactive renewal conversations.
