Premium bonds or ISA? What I’d choose

Premium bond odds are set to fall from December onwards – here’s what I’d do.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

Couple stressed looking at a bill

Source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Premium bonds have long been seen as a safe way to keep money. The capital is secure and there is the chance to win prize money every month. However, there have been changes to premium bonds which take effect next week. In effect, the premium bond odds have been cut.

Previously a premium bond had monthly odds of roughly 24,500 to 1 of winning any prize. But from December 2020 the effective odds will be roughly 34,500 to 1. I still appreciate the capital stability that premium bonds offer. But I now think a Stocks and Shares ISA can offer better returns.

An ISA can offer long-term financial stability

Unlike premium bonds, the value of shares can rise or fall. However, for many people premium bonds are a lifelong investment. They are not something I would trade. So I think a well-chosen group of shares in conservatively run companies can also offer decent financial stability over the long-term.

For example, if I set up a Stocks and Shares ISA, I would split the money across long-term stock market stalwarts such as Unilever, Diageo, British American Tobacco, Natwest, and Legal & General. In the short term, some may move up or down. But over the long term, I expect them to be broadly stable. I would also anticipate a substantial chance of capital appreciation, unlike with premium bonds.

Not only that, but my payout odds would increase dramatically versus premium bond odds! While premium bonds offer a number of very high value prizes, realistically I realise my odds of winning them are miniscule. With a diversified blue-chip ISA, by contrast, I would expect a regular, predictable income most years. Holding for the long term, I would also expect that income to increase. Diageo, for example, has raised its payout annually for over three decades. Compare that to premium bonds, whose December payout cut roughly equates to a dividend cut.

Premium bond odds could be cut again in future

One thing I don’t like about premium bonds is the fact that they don’t have to offer good returns to stay in business. Ultimately the scheme is a way for the government to borrow money long-term from ordinary investors at a low interest cost. No wonder the cut in premium bond odds has come at a time of unusually high government expenditure.

That is different to a company such as Unilever or Legal & General. They are businesses focussed on making profits and returning money to shareholders, through dividends. A dividend cut is unlikely to be made for political reasons, or because the government needs to raise funds. I don’t know what will happen to their payouts in the future. But I am confident that well-managed companies will try to make money to pay to shareholders. Over time, I expect them to increase dividends. That is different to premium bonds. I see little incentive for the premium bonds operator to increase the payout, as the latest cut to prizes shows.

A balanced portfolio can include different asset types and many people have at least some premium bonds. But I prefer to seek financial returns from a Stocks and Shares ISA. I like to feel I know what is coming, and find opportunities for strong returns.

christopherruane owns shares of British American Tobacco and Legal & General Group. The Motley Fool UK has recommended Diageo and Unilever. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Rolls-Royce's Pearl 10X engine series
Investing Articles

£10,000 invested in Rolls-Royce shares 5 Christmases ago is now worth…

James Beard reflects on the post-pandemic Rolls-Royce share price rally and whether the group could become the UK’s most valuable…

Read more »

Investing Articles

Will Nvidia shares continue their epic run into 2026 and beyond?

Nvidia shares have an aura of invincibility as an AI boom continues to benefit the chipmaker. Can anything stop the…

Read more »

Investing Articles

Can Babcock’s and BAE Systems’ shares blast off again in 2026?

The defence sector has been going great guns in 2025, so Harvey Jones looks at whether BAE systems’ and Babcock’s…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

£10,000 invested in Lloyds shares at the beginning of 2025 is now worth…

It's been a banner year for Lloyds shares! Here is what a £10,000 stake would have returned over the course…

Read more »

Frustrated young white male looking disconsolate while sat on his sofa holding a beer
Investing Articles

I asked ChatGPT if I was an idiot for buying Aston Martin shares and it said…

Investors so caught up with the Christmas spirit might think it's a good idea to buy Aston Martin shares. But…

Read more »

Growth Shares

How high could the Vodafone share price go in 2026?

Jon Smith explains why the Vodafone share price is carrying strong momentum into 2026 and why it could continue to…

Read more »

Content white businesswoman being congratulated by colleagues at her retirement party
Investing Articles

I asked ChatGPT to find 3 shares for a brand new SIPP, and it picked…

Many UK investors will have an ISA or SIPP on their planning lists for 2026, while others seek new additions…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

How high can the Lloyds share price go in 2026?

The Lloyds Bank share price has made some stellar gains in 2025, and some analysts are already forecasting further rises…

Read more »