Car insurance brand stacking is the new loyalty penalty, and the FCA knows it

Opinion | Motor Insurance

The remedy worked. The market routed around it.

When the Financial Conduct Authority published PS21/5 in May 2021, the policy goal was specific and modest: stop insurers charging long-tenure customers more than they would quote the same customer as a stranger. Price walking, in regulator-speak. The estimated consumer benefit was £4.2 billion across ten years, which works out at roughly £42 per UK motor policyholder per year. Not transformative. Useful.

The rule has, in its narrow form, worked. The Q1 2026 ABI Motor Insurance Premium Tracker, based on 28 million policies and prices actually paid, shows an average premium of £560, stable on the prior quarter and £20 below Q1 2025. The new-customer-versus-renewal gap that defined the pre-2022 market has compressed. By the metric the rule was written to fix, the rule is fixing the thing.

The complication is that the rule was written to fix a single tactic, not a market structure. The market structure has adapted around the tactic.

How brand stacking replaced price walking

Brand stacking, in practice, is straightforward. A single regulated insurer holds the underwriting permission, runs one claims operation, and prices using one risk model. It then offers that single underwriting product to the consumer market through several distinct consumer-facing brands. Each brand has its own price point, its own marketing, and its own slot on the comparison-site results page.

The post-Esure Ageas group illustrates the shape of this. Following the 2025 acquisition of Esure from Bain Capital and the 2024 Acromas deal with Saga, Ageas UK operates Ageas-branded motor, esure, Sheilas' Wheels, First Alternative, and the underwritten Saga personal lines product, all sitting on the same balance sheet. Admiral runs Admiral, Elephant, Diamond, Bell and Veygo. Aviva, following the Direct Line Group acquisition completing across 2025, has folded Direct Line, Churchill, Privilege and Darwin into a group that already operated Aviva, Quotemehappy and General Accident. The pattern is industry-wide.

None of this is hidden. Each brand has its own FCA permission as an appointed representative or a direct authorisation, and the parent ownership is disclosable and, in corporate filings, disclosed. The point is not concealment. The point is that a comparison-site results page showing five brands at five price points may, in mechanical terms, be showing the same underwriter five times. The cheapest of the five wins the click. The most expensive sits in the middle of the page, capturing the customer who does not scroll, does not switch, or actively prefers the brand they have.

Why this reproduces the loyalty-penalty economics

The original loyalty penalty was inter-temporal price discrimination. Year-one quote was low, year-five renewal was high, the same underwriter captured both. The 2022 rule made that pattern impossible within a single brand.

It did not make inter-brand price discrimination across a single underwriter impossible. And the consumer-facing result rhymes. A driver who shopped around in 2024, took the cheapest quote on the comparison page, and renewed without re-shopping in 2025 has experienced a perfectly compliant transaction. If the underwriter that wrote that policy also runs three other brands at higher price points, the driver's renewal is benchmarked against one of them, not against the cheapest current new-customer price the underwriter is offering through its acquisition brand.

Which? found in its early-2024 work that 51% of motor customers who compared their insurer's renewal quote against the same insurer's new-customer quote for identical cover were offered a lower price as a new customer. Two years after the loyalty ban, posing as a new customer was still saving money in half of cases. Subsequent industry data has not contradicted this. The mechanism just sits one level up the corporate ladder.

The defence and why it is incomplete

The industry defence of brand stacking is real and it has weight. Different brands serve different segments. A telematics-led brand prices young drivers differently from a brand built on over-fifties. Different distribution channels carry different acquisition costs, which legitimately flow into different prices for identical risk. Brand portfolios are a normal feature of mature consumer markets, from supermarkets to airlines to motor manufacturing.

All true. The question is whether the segmentation rationale fully explains the price spread observed on the comparison-site results page, where the brands are competing for the same lead in the same channel at the same moment. If the same underwriter quotes £480 through Brand A and £640 through Brand B for the same driver, same vehicle, same postcode, same cover level, on the same comparison site at the same hour, the channel-cost story does most of its work explaining the gap between £480 and £510. It does less work explaining the gap between £510 and £640.

That residual is what the FCA's 2024 evaluation, when it finally lands, needs to address. The 2022 rule worked on the question it was asked. The question now is different.

What a fix could look like

The least intrusive option is disclosure. Comparison sites already display the trading name of the brand selling the policy. They could be required to display the underwriter group above the same fold. A driver looking at five quotes would see whether they are looking at five underwriters or one underwriter under five names. This sits naturally within the Consumer Duty framework and the requirement to act in good faith and avoid foreseeable harm.

A more interventionist option is to extend the loyalty-penalty principle from the single-brand level to the underwriter-group level. The renewal price an Aviva-group brand offers would have to be no higher than the new-customer price any other Aviva-group brand is offering for the same risk on the same date. This is technically harder, would compress group margins, and would meet serious industry resistance. It is also the rule that closes the loophole rather than papering over it.

The middle option, and the most likely outcome if the regulator acts at all, is a transparency rule short of a pricing rule. Insurers required to publish, at group level, the price dispersion across their own brands for matched risks. Comparison sites required to flag same-underwriter brands. Consumer Duty supervisory pressure on the firms whose brand-portfolio price dispersion is highest. Not a fix, but a discipline.

The broader signal

Brand stacking matters beyond motor insurance because it is a worked example of a recurring problem in financial conduct regulation. Specific remedies target specific tactics. Markets adapt. The original problem returns through a different door. The FCA has the data, the powers and the precedent to act. The question for the rest of 2026 is whether it does, or whether the next regulatory cycle starts somewhere else and brand stacking is left to settle in as the new normal.

For drivers, the practical implication is unchanged. Shop the market, compare across brands, and treat any renewal-price-match headline with the scepticism it has always deserved. The structural fix, if it comes, will come slowly. The individual fix is still re-quoting every year.

FAQ

What is brand stacking in motor insurance?

Brand stacking is when one insurance underwriter offers motor cover through multiple distinct consumer-facing brands. Each brand has its own marketing, its own price point and its own slot on comparison-site results pages, but the underlying underwriter, risk model and claims operation are shared.

Did the 2022 FCA rule ban loyalty penalties completely?

The rule banned price walking within a single brand. It required that the renewal price a brand quotes an existing customer is no higher than the price the same brand would quote an equivalent new customer for the same cover. It did not address pricing across different brands within the same underwriter group.

Is brand stacking against FCA rules?

It is not against current FCA rules. Brand portfolios are a standard feature of UK financial services and are disclosed in regulated firms' filings. The question being raised is whether the model reproduces consumer outcomes the 2022 rule was meant to prevent, and whether further regulatory work is justified.

How can drivers protect themselves?

Re-quote every year, ideally through more than one comparison site, and compare new-customer quotes from the current insurer's group against the renewal price. Where the renewal is meaningfully higher than a fresh quote, the policyholder can switch, ask for a price match, or both.

What is the FCA likely to do next?

The FCA committed to evaluate the effectiveness of the pricing remedies in 2024. As of mid-2026 the evaluation has not been published. The most likely near-term outcome is transparency-focused supervisory work under Consumer Duty rather than a new pricing rule, though either is possible.

Are some insurance groups worse for this than others?

The largest motor groups all operate multi-brand portfolios. Price dispersion across brands varies group by group and changes over time as risk models, marketing and acquisition strategies shift. Comparing two or three brand quotes from the same underwriter for the same risk is the only way a consumer can see their own exposure.

Sources

• FCA PS21/5 General Insurance Pricing Practices, May 2021
• ABI Motor Insurance Premium Tracker, Q1 2026
• FCA Consumer Duty supervisory framework
• Which? research on continuing renewal-versus-new-customer disparity

Photo by Rebecca Reece on Unsplash.