Leverage Ratio: The Bank of England Turns a Rigid Minimum Into a Usable Buffer

On 7 July 2026, the Bank of England (BoE) set out a package to reform the leverage ratio in its Financial Stability Report. The headlines said the supervisor was loosening capital requirements. That captures the direction but misses the mechanics. What is proposed is a restructuring: part of a hitherto rigid minimum is converted into a buffer that a bank may genuinely draw down under stress. And proposed means proposed. For the core of the package there is not even a consultation date.

For an institution's capital planning, the difference between a cut and a restructuring matters considerably. A cut frees up capital permanently. A restructuring creates capital that remains tied up in normal times but may be used in a crisis. Both widen the room for manoeuvre, but at entirely different moments and with different signalling effects towards investors.

What the Bank of England has proposed

The leverage ratio sets a bank's tier 1 capital against its unweighted assets. It is deliberately risk-blind, a backstop for the case in which the risk weights of the regular capital requirement are wrongly calibrated. The lesson dates from 2008. Until now, UK institutions had to meet a minimum of 3.25 per cent of the UK leverage exposure measure, with central bank reserves excluded from that measure.

The proposal takes that figure apart. The minimum falls to 3.00 per cent. Above it sits a new general leverage ratio buffer of 25 basis points, to be met with common equity tier 1 capital and releasable to zero under stress. Two further levers work against each other. The countercyclical leverage buffer (CCLB) is removed entirely. The additional leverage ratio buffer (ALRB) for systemically important institutions, by contrast, rises from 35 to 50 per cent of the risk-weighted systemic buffers, only thereby reaching the international standard.

Across all large UK banks, the Bank of England puts the net effect at around 20 basis points less leverage requirement. That figure deserves a more careful reading than it usually receives: it accounts both for the regulatory requirement and for the capital a bank needs in order to stay above the hurdle rate in the bank capital stress test. The hurdle itself is being adjusted in parallel, so that the reform does not become a tightening by the back door.

Why banks do not touch their buffers

A capital buffer that nobody uses is economically the same thing as a minimum. In practice, institutions hesitate to draw down their buffers under stress, and the reasons are only partly regulatory.

On the regulatory side, automatic distribution restrictions bite. If a bank falls below its combined buffer requirement, the maximum distributable amount (MDA) constrains dividends, bonuses and coupons on additional tier 1 instruments. That threshold acts like a cliff edge. Added to this is uncertainty about the pace at which a depleted buffer must be rebuilt.

On the non-regulatory side, the market bites. Investors and analysts expect headroom above the requirement, rating agencies assess it, and peer comparison disciplines. A bank that is first to draw on its buffer sends a signal it would rather not send.

That release works is something the Bank of England has examined empirically. A study by its own economists on the pandemic finds that banks whose requirements fell most through the release of the UK countercyclical capital buffer tightened their lending conditions less and were less likely to take defensive balance sheet actions. Releasability is therefore not a theoretical construct.

One important caveat. What is documented for the new 25 basis point buffer is only that it can be reduced to zero under stress. Whether it will also be exempt from the automatic distribution restrictions is not stated in the published material. The Bank of England describes that property for the long-term vision of a single, consolidated buffer, not for the buffer now proposed. Anyone modelling the reform in their distribution planning should not anticipate this point.

The second buffer that few people mention

Alongside the leverage reform, the Prudential Regulation Authority (PRA) has clarified that it could release the buffer for other systemically important institutions, the O-SII buffer, in the event of systemic stress, including setting it to zero. It relies on existing discretionary powers, so no new rulebook is required. For the UK institutions concerned, the rates run from 1.0 per cent (among them HSBC, Barclays, Santander UK and Nationwide) to 2.0 per cent at Lloyds.

This is the quietest and most practically relevant step in the package. Until now, the countercyclical capital buffer was the standard instrument the supervisor releases in a crisis. It currently stands at 2.0 per cent, its neutral setting. The O-SII buffer, by contrast, was effectively bolted down. Adding it to the releasable stock materially increases the reserve the supervisor can activate in a recession. And unlike the leverage reform, this part has a firm consultation date in the second half of 2026.

The gilt question that is not in the package

Press coverage conflates the package with a demand it does not contain. UK banks, Barclays foremost among them, have long called for unencumbered government bonds to be removed entirely from the leverage exposure measure. Barclays puts the effect at up to 150 billion pounds of additional demand for gilts, a yield lower by a fifth of a percentage point and 2.5 billion pounds of annual interest savings for the government. Lloyds considers 30 billion pounds of additional demand and at least one billion pounds of interest savings realistic.

These figures come from the banks that would benefit from the change. The Bank of England has to this day taken no position on the demand. Sam Woods, until 30 June 2026 Deputy Governor for Prudential Regulation and therefore the responsible regulator, called a complete exemption “a profound – and highly risky – change" in October 2025. His argument follows the design logic of the measure: removing government bonds from a deliberately risk-blind backstop reintroduces exactly the risk weighting whose miscalibration the measure is meant to insure against.

The gilt question also explains why the leverage package has no consultation date. The Financial Policy Committee (FPC) wants first to take in its work on the resilience of the gilt repo market. In the record of its meeting of 26 June 2026, individual members express explicit concern about an “unwanted increase in market-based leverage" with implications for the resilience of core UK markets. There was no formal dissenting vote, and the majority judges the benefits to outweigh the costs. The concerns nevertheless stand in the record, and they are the gate.

The counter-position

The most pronounced critic is David Aikman, Director at the National Institute of Economic and Social Research and previously involved at the Bank of England in constructing the framework itself. If the leverage ratio becomes binding for banks while the risk-weighted requirement does not, then in his view the fault lies in the risk weights. According to David Aikman, the measure is now the binding constraint for three of Britain's seven largest banks. That figure is his assessment, not a statistic published by the supervisor.

His image for it, speaking to Reuters: “The answer isn't to take the batteries out of the fire alarm, but to investigate what's going on, figure out which risk weights have fallen too far and recalibrate those risk weights."

The objection touches a real tension. The Bank of England publishes its reform in the same report in which it warns, overall, of growing risks to financial stability. Whether loosening the requirement is the right signal in such an environment can be doubted on good grounds.

Recommendations for operational practice

For institutions with UK business, and for continental houses watching the divergence of the rulebooks, four fields of action follow.