Featured articles
What is compounding?
Compounding’s a powerful tool for boosting your savings over time. It could help you grow your money, even when left untouched. Let’s unpack what compounding is, why it matters, and how it can help you grow long-term investments like your pension.
How does compounding work?
At its most basic, compounding is growth on returns you’ve already received.
Perhaps the most well-known form is compound interest. That’s where interest you received in one period receives interest on itself the next time round.
For example, money in a savings account at a bank will usually receive interest after a set period of time. That might be monthly or annually.
Compound interest is the interest the bank will pay on top of your original amount, plus any interest it’s already generated.
This can happen with investment bonds, too. When you receive interest from a bond, you could reinvest into more bonds, earning more interest over time.
It’s not just interest that can compound, either. Any income you receive from savings or investments can compound.
It can work for dividends - small rewards companies might pay to their shareholders - on stocks and shares. Each time you’re paid a dividend, you could reinvest those into more shares. You’d then receive more dividends next time, and so on.
“The Compound Effect is the principle of reaping huge rewards from a series of small, smart choices.”- Darren Hardy, Author of The Compound Effect
Be pension confident.
Combine your old pension pots into one new online plan. It takes just a few minutes to sign up.
Get startedWhat compounding means
Let’s look at a couple of examples. Imagine that you save £1,000 in a savings account paying 5% interest. If the interest compounds annually, here’s what it could look like over a few years.
Figures rounded to the nearest whole number.
The numbers might seem modest at first. But as the years go by, the growth becomes more dramatic. After 10 years, you could’ve earned an additional £629 without having to touch your initial savings.
The effect with dividends is similar, but it works slightly differently.
Imagine that you buy 100 shares at £10 each - an investment of £1,000. You then receive a £1 dividend on each of your shares, totalling £100.
You could reinvest that £100 into another 10 shares, giving you 110 shares. Then, next time the company pays its £1 dividend, you get £110.
That’s compounding - you own more shares and get more dividends without having to invest more of your money.
Time - compounding’s magic ingredient
The longer you leave your money to compound, the more time it has to grow. It’s a force multiplier that builds on previous years’ growth.
This often means thinking carefully before deciding to take any money out of an account that earns interest, or from investments that pay an income.
Not only might there be a penalty for withdrawing early, but you could lose out on that growth opportunity in the long term.
Compounding can grow your pension pot
Compounding can be a big benefit for pension savers. Your pension’s usually invested in various assets. Depending on your plan, that might be stocks and shares which pay dividends, bonds and cash receiving interest, or a mix.
Here are some ways you can take advantage of the power of compounding to grow your pension pot.
- Start early - the sooner you begin saving into your pension, the more you can benefit from compounding over time. Keeping your savings invested allows you to benefit from growth on previous growth, as well as potential long-term returns on your plan’s performance.
- Contribute regularly - even small, consistent contributions can lead to notable growth in the long run. As the example above shows, your savings can benefit from compounding even if you don’t add any more to them. It’s worth investing what little you can.
- Be patient - pensions are long-term investments by design - in 2026/27, you can’t usually access a pension before 55 (rising to 57 in 2028). This can give your pension a long time - possibly even several decades - to take advantage of compounding and grow over time.
- Consider delaying withdrawing - the more money you leave in your pension, the more of it there is to compound. You’ll want to start drawing your pension eventually (from age 55, rising to 57 from 2028). But holding off as long as you can or taking smaller amounts initially could help keep it bigger for longer. Read more reasons to consider delaying taking your pension.
- Remember other pension benefits - combine the power of compounding with pensions’ other benefits like tax relief. Most UK taxpayers usually get tax relief on eligible personal pension contributions, which means the government effectively adds money to your pension pot. Most basic rate taxpayers usually get a 25% tax top up; HMRC adds £25 for every £100 you pay into your pension, making it £125.
If you’re enrolled in a workplace pension scheme, your employer has to contribute to your pension too. The minimum contribution is currently set at 8% of your ‘qualifying earnings’, of which your employer must pay at least 3%.
Key takeaways
Compounding could be powerful in helping to grow your pension. Here are three key things to remember:
- Compounding is growth on savings or investments that have already achieved growth on the original amount.
- It’s most powerful when you leave your money untouched so it can grow. That’s ideal for long-term investments like a pension.
- Saving whatever you can, as often as you can, into your pension will help take advantage of compounding.
Risk warning
As always with investments, your capital is at risk. The value of your investment can go down as well as up, and you may get back less than you invest. This information should not be regarded as financial advice.
Last edited: 23-07-2026
%201.png){kind=small}