Millions caught out by “invisible” savings tax rule as more slip into higher bracket
Millions of people earning over £50,270 are being left confused, anxious and exposed to unexpected tax bills due to widespread misunderstanding of the Personal Savings Allowance (PSA), Yorkshire Building Society has warned. A decade-long freeze in savings tax rules, combined with fiscal drag, is quietly pushing more people into higher rate tax — often without any meaningful change in their financial circumstances.
New research [1] from the mutual highlights a growing gap between perception and reality for higher rate taxpayers. Many have only recently crossed the £50,271 income threshold because tax bands have been frozen, rather than as a result of significant pay rises or lifestyle changes. Yet the moment someone enters the higher rate band, their PSA is instantly halved, from £1,000 to £500 — a shift that many fail to notice or understand.
With higher rate taxpayers holding an average of £20,659 in non ISA savings, even modest interest rates can quickly generate taxable income. Research shows these savers expect to earn around £703 a year in savings interest — well above their £500 allowance — yet public understanding of how and when savings tax applies remains worryingly low.
This confusion is clearly reflected in widespread misconceptions. Many people incorrectly believe higher rate taxpayers can earn up to £740 in interest before paying tax, while others think the allowance should be significantly higher, with some believing it ought to be as much as £1,000. These misunderstandings underline just how unclear savings tax rules have become.
The situation is set to worsen. From 2027, the introduction of an additional 2p tax on savings income will increase the amount people must hand over on interest earned above their allowance. For those who are already unknowingly breaching the £500 PSA, this change could result in larger and more painful tax bills — even where savings balances and interest rates have barely changed.
Uncertainty around how tax is paid adds to the problem. Nearly half (44%) of higher rate taxpayers believe their bank or building society automatically deducts any tax owed on savings interest, while 31% have never checked whether they need to declare or pay tax themselves. As a result, more than a third (35%) say they are worried about receiving an unexpected tax bill — anxiety driven by uncertainty rather than deliberate non compliance.
At the heart of this issue is fiscal drag. Frozen income tax thresholds are steadily pulling more people into the higher rate band without real incomes rising — instantly reducing how much interest they can earn tax free. According to HMRC, the number of higher rate income taxpayers is projected to reach 7.08 million in 2025–26, a 38.7% increase compared with 2022–23. Many of those newly affected face a sudden and poorly understood reduction in their savings allowance, just as taxes on savings income increase and protections shrink. As more individuals are drawn into higher rate tax, the population at risk of confusion, worry and unexpected bills will continue to grow.
Tina Hughes, Director of Savings at Yorkshire Building Society, said: “Many higher rate taxpayers don’t recognise themselves as such. They haven’t had a sudden lifestyle change or big pay rise — they’ve simply been nudged over a frozen threshold. Overnight, their savings allowance is halved, yet our research shows most people don’t fully understand what that means.
“People should be able to save with confidence, but instead many are worried about getting it wrong or being hit with a tax bill they weren’t expecting. From 2027, an additional 2p tax on savings income will further erode returns for people who are already struggling to understand where they stand.
“Alongside this, the reduction in the Cash ISA allowance for under 65s limits how much people can shield from tax in the first place. This isn’t a failure of individuals — it’s the result of a system that hasn’t kept pace with economic reality and leaves too many people in the dark.
“If we want people to build financial confidence, we need modernised savings tax rules and much clearer guidance, so people understand their position before they’re caught out.”
Yorkshire Building Society is calling for reform of the outdated Personal Savings Allowance and clearer, more accessible communication around savings tax, to ensure people who are doing the right thing are not unfairly penalised or left anxious about unwelcome surprises.
References
1. Research completed by Opinium Research LTD for Yorkshire Building Society of 2000 National Representatives UK adults – in field 27th March - 31st March 2026
