How do interest rates and central banks in the UK work? A beginner's explainer

By FastBuySale Newsroom · 5 Nov 2026 · 18m ago

What interest rates and Bank Rate mean

Interest rates and central banks in the UK work like this: the Bank of England, the UK's central bank, sets Bank Rate, the core interest rate in the UK. Bank Rate is the rate the Bank pays to commercial banks, building societies and other financial institutions that hold money with it, and the rate it charges on loans it may make to them. Because of that, it influences the rates those banks charge on loans and pay on savings. When the Bank raises Bank Rate, banks usually increase what they charge on loans and the interest they offer on savings, and the reverse happens when it is lowered.

The Bank uses Bank Rate as a tool to keep inflation stable. Its Monetary Policy Committee (MPC) meets eight times a year to decide what level of Bank Rate is needed to return inflation to, or keep it at, the government's 2% target over time. At the time of writing, the Bank of England's website shows Bank Rate at 3.75%, held at that level in June, July and September 2026, with the next decision due on Thursday 5 November 2026.

Interest: the Bank of England describes interest as what you pay for borrowing money and what banks pay you for saving money with them.

Lending rate: if you are borrowing, the interest rate (or lending rate) is the amount you are charged, shown as a percentage of the total amount of the loan. The higher the percentage, the more you must pay back.

Savings rate: if you are a saver, the interest rate (or savings rate) tells you how much money will be paid into your account, as a percentage of your savings. The higher the savings rate, the more you get.

Simple example from the Bank: if you borrowed £100 at a 1% lending rate, you would have to pay back £101 a year later. If you put £100 into a savings account paying 1%, you would have £101 a year later. To see how interest builds up over many years, try the

Bank Rate: the Bank calls it the core interest rate in the UK and says it is its job to set it. It is the rate paid to banks and building societies holding money with the Bank, and the rate it charges on loans to them.

Why so many rates? The Bank explains that the rates high street banks set depend on more than Bank Rate. For loans, lenders also consider the risk of the loan not being repaid: the greater the risk they see, the higher the rate. The length of the loan or mortgage can matter too.

Even a small change in interest rates can have a big impact, the Bank says, so it is worth keeping an eye on whether rates rise, fall or stay the same.

Who sets UK interest rates: the Monetary Policy Committee

The MPC is the part of the Bank of England responsible for decisions about Bank Rate. Its job is maintaining monetary stability by keeping inflation low and stable.

Membership: the MPC has nine members: the Governor, the three Deputy Governors for Monetary Policy, Financial Stability, and Markets and Banking, the Bank's Chief Economist, and four external members appointed directly by the Chancellor.

Why external members? The Bank says they are appointed so the MPC benefits from thinking and expertise from outside the Bank.

Independence: the Bank says each member has expertise in economics and monetary policy, and members do not represent individual groups or areas. They serve fixed terms, after which they may be replaced or reappointed.

HM Treasury: a Treasury representative sits with the MPC at its meetings and can discuss policy issues but is not allowed to vote. They make sure the MPC is briefed on fiscal policy and that the Chancellor is kept informed about monetary policy.

Current members listed by the Bank: Andrew Bailey (Governor), Sarah Breeden, Clare Lombardelli and Sir Dave Ramsden (Deputy Governors), Huw Pill (Chief Economist), and external members Dr Swati Dhingra, Megan Greene, Catherine L Mann and Professor Alan Taylor.

Schedule: the MPC meets eight times a year, and the Bank publishes a Monetary Policy Summary and Minutes with each decision, plus a quarterly Monetary Policy Report. The Bank also publishes the MPC's voting history and Bank Rate history data going back to 1694.

How interest rates affect inflation

The Bank explains that interest rates influence how much people spend, and that affects how shops and businesses set their prices.

Higher rates: higher interest rates mean higher payments on many mortgages and loans, so people must spend more on them and less on other things. Saving becomes more attractive because returns are higher, and taking out a loan becomes more expensive. These things discourage spending. When customers spend less, businesses are less willing or able to raise prices, and when prices do not rise so quickly, inflation falls.

Lower rates: lower interest rates can have the reverse effect. If mortgage and loan payments go down, people have more to spend on other things. Savers get a smaller return and may feel less motivated to put money away, and it is cheaper to borrow for big purchases. When demand is high, businesses often raise their prices, pushing inflation up.

The target: the MPC sets Bank Rate to return inflation to the 2% target over time. The Bank's decision page shows current inflation at 3.5% against that 2% target.

The September 2026 decision: the Bank said conflict in the Middle East had disrupted the transport and supply of energy, raising prices and pushing up households' motor fuel costs and utility bills. It said inflation had risen to 3.1% and was expected to go up further as higher energy prices had knock-on effects, though so far there was little evidence of significant knock-on effects on prices and wages.

The Governor's message: Andrew Bailey said that the longer energy price volatility persists, the bigger the impact on inflation, and the more likely it is the Bank will need to raise Bank Rate to make sure inflation falls back to the 2% target.

To see how inflation erodes the value of money over time, use the and read more background in

What Bank Rate changes mean for your money

Mortgages: the Bank says that for most people, interest payments on a mortgage are one of the biggest outgoings. In its example, a £130,000 mortgage repaid over 25 years costs £583 a month at 2.5%, £651 a month at 3.5%, and about £520 a month at 1.5%. Run your own numbers with the

Other borrowing: the Bank notes that covering the cost of credit cards and payday loans can also be a big drain, and that if rates rise, borrowing could become more expensive, whether for a mortgage or a new car on credit.

Savers: many people with savings rely on interest from the bank, the Bank says, so the level of rates matters for savers too. When Bank Rate rises, banks usually raise the interest they offer on savings, and the reverse when it falls. Compare accounts in

Current conditions: in its September 2026 decision the Bank said mortgage rates for households and borrowing costs for firms were higher than before the Middle East conflict, making people more cautious about spending, and that there were more people looking for work than jobs available.

Plan for change: the Bank says it is key to understand how a change in interest rates could affect your ability to pay. Fixed-income investments react to rates too; see

Where to check: the Bank of England's 'Interest rates and Bank Rate' page shows the current rate, the next decision date, and links to the latest Monetary Policy Summary and Minutes.

Found this Interest rates and central banks explainer useful? Share it with a friend, tell us what we missed in the comments, and get the FastBuySale app on Google Play () for more guides. Have something to sell? Post a free listing at in a couple of minutes.

💬 Join the discussion on this article →

More in Finance · Trending News · Browse local deals