Finance Matters Insights
All About Premium Bonds
Premium Bonds have been getting a series of quiet cuts over the last year and given they're the UK's most popular savings product (over 24 million of us hold them), it's worth understanding what's actually going on and whether they still earn their place in your setup.
All about Premium Bonds
Premium Bonds are a savings product offered by NS&I (National Savings & Investments), which is backed by HM Treasury. Instead of earning interest in the traditional sense, every £1 you hold is entered into a monthly prize draw. Prizes range from £25 to £1 million, and crucially, any winnings are completely tax-free.
You can hold anywhere from £25 up to £50,000, your capital is 100% protected by the government, and you can withdraw at any time with no penalty. It's the combination of safety, flexibility, and the thrill of a potential big win that has kept them popular for nearly 70 years.
Where Premium Bonds earn their place
There are two camps of Premium Bonds holders.
The first is people who love the novelty. The monthly draw and the chance of a million. It's savings with a splash of excitement, and for many that's enough of a reason to hold them.
The second, and the more strategic camp, is higher and additional-rate taxpayers who have already maxed out their ISA allowance and used up their Personal Savings Allowance. Because Premium Bonds prizes are tax-free, they can be a genuinely smart place to park additional cash that would otherwise be taxed heavily in a regular savings account.
For everyone in between, it's usually about a bit of both. A safe place for money with the small upside of potentially winning something nice.
The quiet cuts NS&I have been making
NS&I has now cut the Premium Bonds prize fund rate three times in just over a year.
It's gone from 4% to 3.80%, then to 3.60%, and now down to 3.30% from the April 2026 draw onwards. The odds of any single £1 bond winning have also lengthened from 22,000-to-1 to 23,000-to-1.
In practical terms, if you're holding £10,000 in Premium Bonds, your average expected prize payout has dropped from £400 a year (at the old 4% rate) to £330 a year now. The number of bigger prizes is also shrinking,
→ £100,000 prizes have dropped from 78 to 71 per draw,
→ and around 240,000 fewer prizes will be awarded each month overall.
And remember, that 3.30% is an average. Most people with typical luck win less than that.
What should it mean for you…
If you're reading this wondering, ‘So, should I still hold Premium Bonds?', here's what I would say.
The top easy-access Cash ISAs are currently paying up to 4.30% AER, which is also tax-free (because it's inside an ISA wrapper) and guaranteed. That's a full 1 percentage point higher than the Premium Bonds prize fund rate, with none of the luck involved.
For most basic-rate taxpayers, particularly anyone who hasn't used their £20,000 ISA allowance yet, a Cash ISA is the stronger play. You get a higher, guaranteed, tax-free return.
For higher-rate or additional-rate taxpayers who have already maxed out their ISA allowance, Premium Bonds still have a place. The tax-free nature of the prizes can make them more efficient than a taxable savings account, even with the lower rate.
Premium Bonds are not bad by any means, but you do have to do the very brief math to determine whether it makes sense for you (unless you genuinely are just hoping for the £1m win).
Between ISAs and Premium Bonds, you have a few tools are your disposal. How you use each will depend on your circumstances and goals.
F
Fisayo Martins
Founder at Finance Matters UK
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