Paying Your Car Insurance Monthly Could Cost You Almost 30 Percent in Hidden Interest

Around 23 million car and home insurance policies in the UK are paid for monthly rather than in one lump sum, and for many drivers that convenience carries an interest rate higher than a typical credit card. A survey of 61 car insurance providers found rates ranging from 0% to almost 30%, with 20 of the 48 firms that disclosed a figure charging 25% APR or more. The average across the market was 23%, broadly in line with what credit card lenders charge, except this is money spent on cover you are legally required to have, not a discretionary purchase.

The Financial Conduct Authority has looked at this market and decided not to intervene further, concluding that average rates had already fallen and that its direct pressure on 10 of the highest-charging firms was enough. Consumer group Which? disagrees, and its research shows exactly why the gap between “cheapest” and most expensive insurers paying monthly can add up to hundreds of pounds a year for exactly the drivers least able to absorb it.

Who Is Charging What

In the most recent survey, carried out in February and March 2026, nine insurers and brokers, including Clegg Gifford, Dial Direct, Hughes, iGO4, Lancaster, nutshell, The Insurance Factory, Wise Driving and Zenith, were all charging 29.90% APR, just short of the market’s highest rates. The Co-operative Insurance was close behind at 29.89%.

At the other end of the scale, Hiscox and NFU Mutual charge no interest at all for paying monthly, and providers including Aviva, Admiral, Bell, Diamond and Elephant sit around 15 to 19%. Direct Line, Churchill, Privilege and Ageas all charge 19.90%. The spread means two drivers with identical annual premiums of, say, £600 could end up paying more than £80 apart over a year purely from which insurer’s instalment plan they were placed on, not any difference in their driving risk.

Why the FCA’s Own Logic Does Not Add Up

Insurers argue premium finance carries genuine costs: administration, and the risk that a customer stops paying partway through the year. But unlike a bank issuing an unsecured loan, an insurer offering premium finance is not actually exposed to losing the full annual premium if a customer defaults, as the policy itself can simply be cancelled. That asymmetry is central to why campaigners argue the risk being priced into these APRs does not match the risk insurers actually carry.

The FCA’s own data shows why this particular unfairness lands hardest on people with the least financial flexibility. Paying monthly exists specifically for the large share of customers who cannot afford the full annual premium upfront. Charging that same group of people a rate close to, or above, unsecured credit card pricing means the customers with the least room in their budget end up paying the most for the privilege of spreading a compulsory cost.

Rates Have Fallen, But Not Enough

To be fair to the industry, rates are not standing still. Comparing firms surveyed in both April 2024 and the most recent 2026 survey, average APRs have dropped by around five percentage points, which campaigners attribute partly to regulatory scrutiny and partly to sustained public pressure. Policy Expert cut its rate to 24.9% APR after the most recent survey closed, having previously charged new customers 27% and renewing customers 29.9%.

That movement has not fixed the underlying market. The pattern the FCA itself found in its market study was that certain firms, brokers more than direct insurers, were earning substantial profits from premium finance specifically. The regulator intervened directly with 10 of the highest-charging firms, and four responded by cutting their rates. That leaves a meaningful share of the market untouched by direct FCA pressure and still charging rates that, on a compulsory product, would raise eyebrows if they appeared on a credit card statement instead.

The gap between the two groups of firms illustrates how uneven the FCA’s approach has been. Ten firms received direct scrutiny out of dozens surveyed by Which?, and even among those ten, only four responded with lower rates. The remaining six, along with the roughly fifty other firms never singled out, are free to keep charging whatever the market will bear. For a product every driver is legally obliged to hold, that leaves a wide and largely uncorrected gap between the cheapest and most expensive ways to spread the cost.

The Real Cost in Pounds, Not Just Percent

An APR figure alone can be hard to translate into real terms. On a £600 annual car insurance premium, spreading the cost over 12 months at 23% APR typically adds roughly £70 to £75 over the year compared with paying the full amount upfront. At 29.9%, the same premium carries an added cost closer to £95. Someone paying that same £600 premium through a 0% credit card, cleared within an interest-free period, pays nothing extra at all.

Multiply that gap across the roughly 23 million car and home policies paid monthly in the UK, and the scale of the sum involved becomes clear. Even a conservative estimate of £50 extra per policy on average points to well over £1 billion collectively taken from households each year simply for spreading a compulsory payment, on top of whatever administrative cost that spreading actually creates for the insurer.

What You Can Do About It

Before you renew, ask your insurer directly what APR applies if you pay monthly, rather than assuming it is a fixed or trivial add-on. Insurers are required to quote this figure if you ask, and comparing it against the annual price lets you calculate the real cost of spreading payments in pounds, not just as a headline percentage.

If your existing insurer charges a high rate, price paying annually through a 0% purchase credit card instead, provided you can clear the balance within the interest-free period, turning a 20-30% APR insurance loan into effectively free credit. Some banks and building societies also offer lower-rate personal loans for exactly this purpose, which can undercut even a mid-range premium finance rate.

When you compare quotes at renewal, weigh the monthly instalment APR alongside the headline annual premium. An insurer that looks marginally more expensive annually can still work out cheaper overall if its monthly rate is 15% rather than 25%. And if you believe your insurer is not being transparent about its APR when asked directly, that is something you can raise with the Financial Ombudsman Service as a fair value complaint under the Consumer Duty rules that came into force in 2023.

It is also worth checking whether your insurer offers any lower-cost payment option beyond its standard instalment plan, such as a shorter six-month split rather than 12 monthly payments, which can sometimes carry a lower effective rate given the loan is outstanding for less time. Brokers are worth questioning directly: several of the highest APRs in the market sit with broker-arranged policies rather than the insurer’s own direct channel, and switching to buy the same cover directly from the underwriter can occasionally unlock a materially lower rate for identical cover.

Households on a tight budget who feel forced into a high-APR instalment plan when no other option is realistically available should not assume nothing can be done. Citizens Advice and MoneyHelper both offer free guidance on comparing the true cost of premium finance against alternatives such as credit unions, which frequently offer lower rates than mainstream premium finance providers to members with even modest savings histories. A short call to a local credit union, or a look at MoneyHelper’s comparison tools before renewal, costs nothing and can reveal an option far cheaper than the default instalment plan an insurer offers at the point of sale.

Sources:

• Which?: Many car and home insurers still charging over 25% APR to pay monthly
• FCA: Premium Finance Market Study Update Paper, July 2025
• Which?: End the Insurance Rip-Off campaign