Britain’s Prudential Regulation Authority has proposed replacing irregular regulatory-threshold changes with an automatic system tied to growth in nominal gross domestic product.
The consultation covers 128 thresholds across the rules for banks, insurers and credit unions. These figures determine when a requirement begins to apply, how an institution must comply and what it must report. Left unchanged while prices and the economy expand, a nominal limit can gradually pull smaller firms into heavier regulation even when the regulator’s underlying view of risk has not changed.
The authority calls that effect “prudential drag.” Its answer is a rules-based update every five years, with the first adjustment scheduled for July 1, 2031. The largest threshold in the proposal is the £320 billion total-assets test for detailed capital reporting. The smallest is a £7,500 limit concerning sums owed to a credit union by an individual.
The proposal would not place every number in the rulebook on automatic pilot. Thresholds set in legislation or by another authority would be excluded, as would non-monetary limits and figures whose adjustment could materially alter prudential outcomes. Those would remain subject to ordinary policy review.
The legal importance lies in the transfer of discretion from occasional consultations to a pre-announced formula. Firms would gain a clearer path for planning, but future adjustments would happen without a fresh debate over each individual figure. The authority says that is justified where the change is intended only to preserve the original calibration rather than loosen supervision.
The consultation remains open, and no threshold has yet changed. The PRA will have to consider whether nominal GDP is an appropriate measure across sectors with very different balance sheets and risks, and whether the five-year interval is frequent enough to prevent distortion without making compliance systems unstable.
Official PRA consultation paper
