Inflation explained: how it affects your money
Rising prices quietly shrink what your money can buy. What inflation is, how it affects savings and debts, and how to protect yourself.
Inflation is the rate at which prices rise over time. When inflation is high, the same amount of money buys less each year, which quietly erodes your savings and squeezes your budget. Understanding inflation helps you make better decisions about saving, borrowing, investing and asking for pay rises. This guide explains what inflation is, what causes it, how it affects your money and what you can do to protect yourself.
What is inflation?
Inflation measures how much the general level of prices has risen, usually over a year. Governments track it with a consumer price index (CPI), which follows the cost of a typical basket of goods and services such as food, rent, transport, fuel and school fees. If the CPI rises by 7% in a year, the basket costs 7% more than it did a year earlier. Prices of individual items can rise faster or slower than the average, which is why your own cost of living may feel different from the official figure.
What causes inflation?
Inflation often rises when demand for goods and services grows faster than supply, for example when spending rises quickly in a growing economy. It can also be pushed up by higher costs, such as rising fuel or food prices, a weaker currency that makes imports more expensive, or supply disruptions. Central banks try to keep inflation low and stable, usually by raising interest rates when inflation is too high and lowering them when it is too low.
How inflation affects your savings
Inflation reduces the purchasing power of money. If inflation averages 7% a year, 100 shillings, naira or dollars today will buy only about as much as 51 does now in ten years' time. At 5% inflation, it would buy about as much as 61 does today. Money kept in cash or in an account paying little interest loses value in real terms, even though the number in your account stays the same.
What matters is your real return: your interest or investment return minus inflation. If your savings earn 10% and inflation is 7%, your real return is about 3%, so your money is genuinely growing. If your savings earn 4% while inflation is 7%, you are losing about 3% of your buying power each year.
How inflation affects your budget and debts
When prices rise faster than your income, your standard of living falls, which is why a pay rise below the inflation rate is effectively a pay cut. Budgets need regular updating as food, transport and rent costs climb. For borrowers, inflation has two sides. Over time, it reduces the real value of a fixed debt, but high inflation usually leads to higher interest rates, which makes new loans and variable-rate loans more expensive.
How to protect your money from inflation
Do not leave large sums idle. Keep only what you need for day-to-day spending in a current account or wallet, and put savings where they earn interest, such as money market funds, savings accounts or government securities.
Aim for real returns on long-term money. Over long periods, diversified investments such as shares and property have tended to outpace inflation, though they rise and fall in the short term. Some governments offer inflation-linked savings bonds that adjust for rising prices.
Review your budget and income. Update your budget at least once a year, and use inflation figures when discussing pay; our guide on how to ask for a pay rise explains how.
Pay off expensive debt. High-interest debt usually costs more than inflation erodes, so clearing it is often the best return available.
Inflation and compound growth
Inflation compounds just like interest: a few percent a year adds up to a large loss of buying power over decades. That is why saving early, in places that beat inflation, matters so much. Read compound interest explained, and use our savings calculator to compare returns.
Frequently asked questions
What is inflation in simple terms?
It is the rate at which prices rise, which means the same money buys less over time.
How does inflation affect savings?
If your savings earn less than the inflation rate, their buying power falls even though the balance stays the same.
What is a real return?
Your return after subtracting inflation; it shows whether your money is genuinely growing.
Sources
This article is general information, not financial advice.