Premium Bonds Just Got Better: How Do They Compare to Prize Competitions?

NS&I confirmed on 18 August 2026 that the Premium Bonds prize fund rate rises to 4.35% for the September draw, up from 3.80%, with the odds on each £1 Bond shortening from 22,000 to 1 to 21,000 to 1. That adds around 308,000 extra prizes and pushes the monthly pot up by about £63m to over £497m. It is the second increase this year, after the rate was cut to 3.30% back in April.

Every time this happens we get the same question: is it a better bet than the competition sites? It is a fair question, and the answer has almost nothing to do with the odds.

Why the Odds Comparison Is the Wrong One

21,000 to 1 sounds terrible next to a 2,500-ticket cash comp where five tickets gets you 1 in 500. But the two numbers measure different things. Premium Bonds odds are per £1 Bond, per month, forever — you hold 1,000 Bonds and you get 1,000 chances every single month, indefinitely, and you still have your £1,000 at the end. A competition ticket is one chance, once, and the money is gone either way.

That is the whole comparison. Not odds. Whether your stake comes back.

The Numbers Side by Side

	Premium Bonds	Median UK cash draw
Cost of entry	£1 Bond (refundable)	99p ticket (spent)
Typical return	4.35% prize fund rate	About 50p of prize value per £1
Stake returned?	Yes, in full, any time	No
Tax	Tax-free	Tax-free
Odds published up front?	Yes	Yes, if the pool is fixed

That 50p figure comes from our own data. Across 243 live cash draws, the median Value Ratio is 1.98 — operators collect just under £2 for every £1 of prize value across the pool. Flip it and each £1 you spend buys about 50p of expected prize value. The median cash comp asks 99p a ticket against a pool of roughly 2,500.

One honest caveat on the Premium Bonds side too: 4.35% is the rate across the entire prize fund, not what a typical holder gets. Prizes are lumpy, and a small holding will very often return nothing at all in a given year. The median return for someone holding a few hundred pounds is a good deal less than the headline.

Where Competitions Still Win

Two places, and they are real ones.

First, you cannot win a specific thing with Premium Bonds. If you want a shot at a particular car, a particular watch, or £2,500 cash this month, ERNIE has no mechanism for that.

Second, the median is not the market. The best cash draws we track run well below a Value Ratio of 1.0, meaning the operator collects less across the whole pool than the prize is worth. Those exist, they are findable, and they beat a 4.35% prize fund on expected value — for a single ticket, on a single draw. See where they sit on the best odds cash competitions table.

The Honest Framing

Premium Bonds are savings with a lottery wrapper on top. Prize competitions are entertainment spending with a shot at something specific. They are not competing products, and treating a competition ticket as a savings decision is how people get into trouble. Set a budget, stick to it, and have a look at our notes on playing responsibly if any of that feels close to the bone.

If you do enter, at least enter well: run the pool and ticket price through the odds calculator first and you will know exactly what you are buying.