Important information - the value of investments and the income from them can go down as well as up, so you may get back less than you invest.

Interest rates were held at 3.75% in September despite markets pricing in as many as five interest rates rises over the next year.

The Bank of England’s Monetary Policy Committee (MPC) voted 6-to-3 to keep rates on hold, an outcome that was expected. That was despite headline inflation (Consumer Price Index) rising to 3.1% this week, driven higher by spiking energy prices caused by the conflict in the Middle East. The Bank can raise interest rates to a way to quell demand in the economy and potentially bring down inflation. 

The Bank’s commentary said: “UK CPI inflation increased to 3.1% in August and is likely to rise further over coming quarters. Monetary policy is being set to ensure inflation comes down to 2% sustainably as the economy adjusts to the energy shock. The policy stance required to achieve this will depend on the scale and duration of the shock and how it propagates through the economy.” 

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The wait-and-see approach is increasingly at odds with the view of financial markets, which are pricing in four or even five quarter-point rate rises over the next 12 months. Market rates have surged higher following renewed fighting in the Middle East and raised expectations of prolonged high energy prices. This would normally mean equivalent rises in the Bank Rate, but rate-setters appear to be unconvinced that current inflationary pressures will persist.

MPC members have been watching for signs that inflation caused by energy prices is translating into higher wages and ‘core’ inflation - the rate of prices rises once volatile elements like energy have been stripped out. If that begins to happen then the Bank could raise rates to prevent a spiral of higher inflation. As it is, core inflation was flat in August, despite the rise in the headline rate, and wage growth has been falling for more than a year. 

When fighting in the Middle East first began earlier this year, markets were predicting one or even two rate rises to have happened by now. Instead, rates have remained on hold and there is a growing sense among economists that the market is too hawkish and that fewer - if any - rates rises will materialise. For example, Berenberg, the investment bank, has suggested that the next move for rates is more likely to be downwards, predicting as many as three interest rate cuts in the next year. 

The next UK interest rate decision is scheduled for 5 November 2026 followed by MPC meetings on:

  • 17 December 2026
  • 4 February 2027
  • 19 March 2027

How rates have changed

The path ahead for interest rates, as implied by market prices, has changed significantly following the outbreak of the conflict in the Middle East. 

The chart below shows the implied level of interest rates from 16 February 2026, just before the conflict broke out, and then the path suggested by prices recently - on 15 September 2026. This is based on market prices for government bonds with different lengths of maturity.

You can see how the path for rates on 16 February was downwards. Expectations rose significantly after fighting began and the reading for 15 September shows that expectations have risen to price in four but possibly five quarter-point rate rises over the next year.

Market prices suggest the indicative rate will be 4.87% in 12 months’ time. In reality, the Bank rate tends to move in quarter-per cent increments, suggesting a rise to 4.75% is expected with a further rise to 5% possible.
 

Where next for mortgage rates?

As a general rule, if the Bank of England moves interest rates then mortgage rates tend to follow. Ultimately, however, it is up to lenders to decide the rates they offer and changes to mortgage deals can often run ahead or behind changes in the Bank rate. Mortgage lenders may move their rates higher based on market interest rates even in the Bank of England keeps its rate on hold.

Anyone looking for a mortgage recently will have found that variable rate mortgages - where the rate moves directly in line with the Bank Rate - have become significantly cheaper than fixed rate deals. This reflects the expectation that rates will rise.

The best rate on a five-year fixed rate mortgage is currently 4.6%.1 On 3 March 2026 the best deal was just 3.75%.
 

 

Where next for savings rates?

Savings rates have climbed in line with the rise in interest rate expectations, although rates are ultimately set by account providers based largely on competition in the savings market.

The best rate currently available for Cash ISA accounts is 4.62%2 although this includes a time-limited boost to the rate which falls away after a year.

Cash options - the best ways to save

There are a number of potential homes for money if you decide to hold it in cash.

It makes sense to shield your cash returns from tax if you can, which means using part of your £20,000 annual ISA allowance to hold cash. Cash ISAs do this job - although any allowance you use for cash cannot then be used for investments.

Non-ISA cash accounts also exist but returns are potentially subject to tax at your rate of income tax, subject to certain allowances.

For this reason, some savers choose Premium Bonds, where there is no guaranteed rate of interest but monthly prizes are paid instead - but you have to have above average luck in order to get those rates.

An increasingly popular cash option is to move cash savings to an investment account but utilise assets which produce a cash-like return while rates remain somewhat attractive. That would allow you to take advantage of above-inflation returns from cash while it lasts, but also leave you ready to switch to investments if and when that suits you.

Cash funds or money market funds held inside investment accounts can do this job. The Fidelity Cash Fund is the best-selling cash fund on the Fidelity Investing platform.

Fidelity: current interest rates we pay on cash 

Here are the current interest rates we pay on cash held in our accounts. This includes our - 

  • ISA (including Junior ISA)
  • Investment Account
  • Cash Management Account
  • SIPP (including Junior SIPP)

Please note that interest rates can be changed at any time and the rates below have been applied since 1 September 2026. 

Account Gross rate of annual interest Annual Equivalent Rate (AER)
ISA (including Junior ISA) 2.30% 2.32%
Investment Account 2.30% 2.32%
Cash Management Account 2.30% 2.32%
SIPP (including Junior SIPP) 2.35% 2.37%

Source:

1 London & Country, 15 September 2026
2 MoneySavingsExpert 15 September 2026

Important information - investors should note that the views expressed may no longer be current and may have already been acted upon. Overseas investments will be affected by movements in currency exchange rates. Reference to specific securities should not be construed as a recommendation to buy or sell these securities and is included for the purposes of illustration only. An investment in a money market fund is different from an investment in deposits, as the principal invested in a money market fund is capable of fluctuation. Fidelity's money market funds do not rely on external support for guaranteeing the liquidity of the money market funds or stabilising the NAV per unit or share. An investment in a money market fund is not guaranteed. The value of shares may be adversely affected by insolvency or other financial difficulties affecting any institution in which the Fund's cash has been deposited. There is a risk that the issuers of bonds may not be able to repay the money they have borrowed or make interest payments. When interest rates rise, bonds may fall in value. Rising interest rates may cause the value of your investment to fall. Tax treatment depends on individual circumstances and all tax rules may change in the future. Withdrawals from a pension product will not be possible until you reach age 55 (57 from 2028). This information is not a personal recommendation for any particular investment. If you are unsure about the suitability of an investment you should speak to one of Fidelity’s advisers or an authorised financial adviser of your choice.

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