Two popular options, very different models
Premium Bonds and online prize competitions both offer the chance to win prizes, but they work in fundamentally different ways. Premium Bonds are a government-backed savings product from NS&I. Online competitions are prize draws with fixed ticket counts and specific prizes. Understanding the differences helps you decide where your money is best used.
How Premium Bonds work
Premium Bonds are a savings product where, instead of earning interest, your money is entered into a monthly prize draw. Each £1 bond is a separate entry. Prizes range from £25 to £1 million. Your capital is always safe because you can cash in your bonds at any time and get your money back. The prize fund rate changes periodically, but it typically means the average return across all bondholders is roughly equivalent to a modest interest rate, distributed unevenly through prizes rather than guaranteed interest.
How online competitions work
Online prize competitions sell a fixed number of tickets for a specific prize. When all tickets are sold or the deadline passes, a draw selects the winner. Your ticket money is spent, not saved. You will not get it back. But the odds of winning are known in advance, the prize is specific, and the draw happens within days or weeks rather than months.
Side-by-side comparison
Premium Bonds have zero risk, your money is always yours. Competition tickets are a purchase, not an investment. The money is spent.
Premium Bonds have approximately a 1 in 23,000 chance per £1 bond per month of winning any prize. A 100-ticket competition gives 1 in 100 odds per ticket.
Premium Bonds offer up to £1 million. Online competitions typically offer £50 to £5,000.
Premium Bonds require a minimum £25 purchase. Competition tickets start from £1.
Premium Bonds average around 3.3% equivalent return across all holders. Competition returns vary by draw but expected value is often 50% to 75% of ticket price.
Premium Bonds can be cashed in at any time. Competition tickets cannot be refunded after purchase.
Both are completely tax-free in the UK.
Premium Bonds draw monthly with results checked via app. Competitions draw within days or weeks with email notification.
The odds in detail
With Premium Bonds, the odds of each £1 bond winning any prize in a given month are approximately 1 in 23,000. For the £1 million jackpot, the odds per bond per month are astronomically long. Even with £10,000 in bonds, your chance of winning the jackpot in any given month is negligible. With online competitions, a 100-ticket draw gives you a 1 in 100 chance with a single ticket. The odds are straightforward and dramatically shorter.
The key trade-off
Premium Bonds protect your capital. You never lose your money. Competitions spend your money for a chance at a specific prize. The question is whether you want guaranteed safety with small chances, or a real shot at winning with money you are comfortable spending.
When Premium Bonds make more sense
Premium Bonds are ideal if you have savings you want to keep safe while having a small chance of winning prizes. They are particularly good for risk-averse savers, people building emergency funds, or anyone who wants a tax-free alternative to a savings account. The downside is that most bondholders win nothing in any given month, and the average return may lag behind the best savings accounts.
When competitions make more sense
Competitions make sense if you have a small entertainment budget and want a genuine, realistic chance of winning a specific prize. They work best when treated like entertainment spending, similar to going to the cinema or buying a scratch card. The odds are dramatically better than Premium Bonds for individual prizes, but your money is spent rather than saved.
Can you do both?
Many people do. Premium Bonds serve as a safe savings product with a small bonus element. Online competitions serve as affordable entertainment with a real chance of winning. The two are not competing for the same purpose. Using both means your savings are protected while a small entertainment budget gives you genuine excitement and realistic odds.
Important distinction
Never use money you need for savings or essentials to enter competitions. Competitions are entertainment, not a savings strategy. Premium Bonds are a savings product. They serve completely different financial purposes.