Modest Bank Tax Increase Is Not the End of the World for Lenders 2026

A modest increase in bank taxes is not the end of the world for lenders, despite the industry's familiar warnings that higher taxes will harm economic growth. Chancellor John Healey is expected to raise bank taxes in next week's budget, and while banks argue this will reduce deposits and raise loan costs, the reality is more nuanced.

The banking lobby's plea is well-rehearsed: raising taxes on banks amounts to taxing the nation's growth. If you increase how much banks pay, goes the argument, less interest will be paid on deposits and loans will cost slightly more, meaning we'll all be worse off eventually. In terms of economic theory, it's coherent — in an ideal world, a chancellor would strive to lower costs of capital at every opportunity.

In the real world, however, John Healey faces multiple competing demands, even from within a business lobby that extends well beyond the banks. As this newspaper revealed last week, the chancellor is likely to increase bank taxes in his budget next week. In the current climate of trying to "stay the course" on the fiscal rules by finding some money from somewhere, tapping the banks is a reasonable policy. Or, at least, better than most alternatives.

Why Banks Can Afford a Modest Tax Increase

First, today's conditions for banks are plainly gentle: defaults are historically low and interest rates are high. Banks' returns on tangible equity – a better guide to how they are doing than pure profitability – are heading towards 20%. Most non-financial firms would love such a number.

Provided Healey doesn't go overboard, the flow of capital is not going to be seriously undermined when the starting point for banks' returns is so good. The sector is generating strong profits, and a modest tax rise will not derail that.

Second, all the indications suggest Healey will indeed opt only for a tweak rather than a radical overhaul. That matters because it gives banks certainty and limits the potential for unintended consequences.

What the Tax Increase Means for Lenders and Borrowers

For lenders, the key question is how much of the tax increase will be passed on to customers. Banks may adjust deposit rates or loan pricing slightly, but with returns so high, they have room to absorb some of the cost.

For borrowers, the impact is likely to be marginal. A small increase in bank taxes is unlikely to significantly alter the cost of mortgages or business loans, especially when compared to the influence of interest rates set by the Bank of England.

• Banks' returns on tangible equity are heading towards 20%, giving them a buffer to absorb higher taxes.
• Defaults are historically low and interest rates are high, creating a favourable operating environment.
• The chancellor is expected to opt for a modest increase, not a radical change, limiting disruption.
• Pass-through to customers is likely to be small, with limited impact on deposit rates and loan costs.
• Alternative revenue sources are scarce, making bank taxes a relatively sensible choice for the Treasury.

How Bank Taxes Compare to Other Revenue Options

When the chancellor needs to find money while sticking to fiscal rules, he has limited options. Raising income tax or VAT would be politically sensitive and could dampen consumer spending. Cutting public services is equally contentious.

Bank taxes, by contrast, target a sector that is currently enjoying strong profits. The table below compares the potential impact of different revenue-raising measures.

As the table shows, a bank tax increase offers a middle path: it raises revenue without the sharp growth hit of higher income tax or the political fallout of spending cuts.

The Broader Context: Fiscal Rules and Business Lobbying

The chancellor's decision must be seen in the context of the government's fiscal rules. With limited room for manoeuvre, Healey needs to find savings or revenue from somewhere. The banks, with their strong profits, are an obvious target.

Yet the banking lobby is not the only voice in the business community. Other sectors also face demands, and the chancellor must balance competing interests. A modest bank tax rise may be the least bad option.

For those following the debate over how much banks should contribute, the arguments echo similar discussions in other countries. The UK is not alone in grappling with how to tax financial services fairly.

What to Watch Next

All eyes will be on the budget next week to see the exact scale of the bank tax increase. If it is indeed modest, as expected, the impact on lenders and the wider economy should be contained.

Banks will be watching closely to see if the chancellor goes further than anticipated. Any surprise move could prompt a stronger response from the sector. The background to this story is set out in UK Bank Tax Rise in Budget: Healey Targets Lenders for Revenue. A related thread runs through JP Morgan's Dimon warns UK chancellor on bank tax hikes. Earlier coverage in JP Morgan CEO Warns UK Chancellor on Bank Tax Hikes shows how the argument developed.

The political reaction will also be telling. If the opposition and business groups cry foul, it could signal that the government has overreached. But if the increase is seen as fair, it may pass with little controversy. A closer look at the same subject appears in John Healey Chancellor: Fiscal Hawk or Big Spender?. Anyone following the wider picture can start with John Healey Chancellor: Fiscal Hawk or Big Spender? Analysis. The same theme surfaces in Barclays Profits Soar: Calls for Bank Tax Increase Intensify, which takes a different angle.

In the end, a modest bank tax increase is unlikely to derail the UK's economic recovery. Banks are resilient, and the chancellor has room to manoeuvre. The sky is not falling. Context on how this played out before sits in John Healey Warns of Tough First Budget Impact on UK Economy. A companion piece, Barclays Profits Soar: Urgent Call for Bank Tax Hike, approaches the same subject from another angle.