What Is Inflation? Why Your Money Loses Value Over Time
You've probably noticed things cost more than they used to. A loaf of bread. A tank of petrol. Your energy bill. That's inflation — and while everyone feels it, far fewer people understand what it means for the money sitting in their bank account.
This page explains inflation in plain English. No economics degree required. No jargon. Just what it is, why it happens, and why it matters for your everyday money.
The Simple Explanation
Inflation means the price of goods and services goes up over time. Another way to say it: your money's purchasing power goes down.
Think of it like this: £100 today buys you a certain amount of stuff. A year from now, that same £100 will probably buy you a bit less. Ten years from now? Quite a lot less. Your money didn't change — what it can buy did.
A Real Example
In 2014, the average price of a pint of milk in the UK was about 44p. By 2024, it was around 62p. That's a 41% increase. The milk didn't change. The cost did.
2014
44p
Average pint of milk
2024
62p
Average pint of milk
Source: Office for National Statistics (ONS) — average UK retail price data.
Apply that same effect to everything — food, energy, transport, housing — and you start to see why the money sitting in your current account slowly loses its purchasing power.
Why Does Inflation Happen?
There's no single cause. Inflation comes from a mix of things — and economists still argue about which matters most. Here are the main reasons, in plain English.
Demand Outstrips Supply
When lots of people want to buy the same thing and there isn't enough of it, prices go up. More demand chasing limited supply pushes costs higher.
Cost of Production Rises
When it costs more to make things — higher wages, more expensive raw materials, pricier energy — companies often pass those costs on to customers.
More Money in Circulation
When there's more money flowing around the economy, each pound is worth slightly less. Central banks like the Bank of England control how much money is 'out there'.
Expectations Drive Behaviour
If businesses and workers expect prices to rise, they raise prices and ask for higher wages — which can create a self-fulfilling cycle.
What This Means For Your Money
Inflation affects everyone differently. But here's the bit that matters most: if your money isn't growing at least as fast as inflation, its real value is going down.
Cash Savings Lose Value Quietly
If your savings account pays 1% interest but inflation is running at 3%, your money is effectively losing 2% of its purchasing power every year. The number in your account stays the same — or even goes up — but what it can actually buy goes down. Over a decade, that's a significant gap.
Your Pay Rise Might Not Be A Pay Rise
If you get a 3% pay rise but inflation is at 4%, your real income has actually fallen — even though the number on your payslip went up. This is why keeping an eye on inflation matters, even if you're not an economist.
Delaying Spending Can Mean Paying More
If you're planning a big purchase — a new kitchen, a car, a holiday — and you wait a year, you might find the same thing costs more than it did before. That's inflation at work in the real world.
Retirement Savings Need To Outpace It
If you're putting money aside for later in life, inflation is one of the biggest risks to consider. Money that looks like a lot today might not go as far as you'd hope in 20 or 30 years if inflation has been at work the whole time.
What The Bank Of England Does About It
The Bank of England has a target: keep inflation at around 2% per year. Not zero — a small, steady amount of inflation is considered healthy for the economy. The problem is when it goes much higher than that.
Their main tool is interest rates. When inflation is too high, the Bank raises interest rates to try and slow spending and bring prices back under control. When inflation is low, they might cut rates to encourage spending.
How This Affects You Directly
- •Higher interest rates mean higher mortgage payments for many people
- •Higher rates can also mean better returns on savings accounts — though usually still below inflation
- •Lower rates make borrowing cheaper but often mean savings accounts pay almost nothing
- •The Bank publishes its interest rate decisions eight times a year — these are closely watched
For more on how hidden costs can affect your finances, you might find our page on fiscal drag interesting — it's another one of those things that quietly affects your money without most people noticing.
Frequently Asked Questions
What is the current UK inflation rate?
Why does the Bank of England target 2% inflation?
Is inflation always bad?
How does inflation affect my savings?
Who measures inflation in the UK?
Understanding Your Money
The more you understand how money works, the better decisions you can make. No complicated theories — just practical knowledge that helps in everyday life.
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Important Information
FOR EDUCATIONAL PURPOSES ONLY
This page provides general information about inflation and its effects on household finances. It is not financial advice, investment advice, tax advice or a recommendation to take any financial action. The examples and illustrations shown are for educational purposes only and individual circumstances vary. The information about the Bank of England, the Office for National Statistics and other institutions is believed to be accurate but should be independently verified. Steve is not registered with or authorised by the Financial Conduct Authority (FCA). Always consider your own circumstances and seek professional advice where appropriate before making financial decisions.