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.

Official UK interest rates have fallen again - from 4% to 3.75% - after rate-setters responded to further falls in the pace of prices rises.

The Bank of England’s Monetary Policy Committee (MPC) voted 5-4 to cut rates in December 2025. A reduction was assumed likely in the weeks leading up to the decision but became a near-certainty after officials confirmed that inflation had fallen in November.

The Bank uses interest rates to influence inflation. Higher rates increase borrowing costs and leaves less money in the hands of individuals and businesses. This dampens demand and reduces upward pressure on prices. The Bank has a target of keeping inflation at 2% a year.

UK consumer price index (CPI) inflation dipped to 3.2% in November, down from 3.6% in October. The fall was larger than expected and added to the evidence that inflation, having risen through the first half of 2025, was now on a downward trajectory.  

Markets now believe another cut will arrive in the first half of 2026 - taking the Bank rate to 3.5%. The picture beyond that is less certain although the odds of a second rate cut increased following the fall in inflation this week.

Beyond the headline rate for price rises, labour market data this week showed regular pay rising less quickly - by 4.6% a year in the August to October period, down from 4.7% a month earlier. The labour market was weakening in other ways, too, with employment lower, unemployment higher and more people claiming out-of-work benefits. These effects may also reduce demand in the economy, leading to lower inflation.

At the same time, overall growth in the economy is weak. The latest figures for the month to October showed a 0.1% fall in GDP. This is also reduce inflationary pressure and gives the Bank an incentive to lower rates to spur growth.

The next central bank meeting is scheduled for 5 February 2026 followed by meetings on:

  • 19 March 2026
  • 30 April 2026
  • 18 June 2026

How rates have changed 

The path ahead for interest rates, as implied by market prices, has been changing. The chart below shows the implied level of interest rates from 16 September, 18 November and 16 December 2025.

This is based on market prices for government bonds with different lengths of maturity.

The most recent reading (in blue) shows that markets now expect rates to fall to near 3.5% in about six months. This would indicate one more quarter-point cut by the middle of next year. Forward prices beyond that suggest rates could fall further but there is a question over whether this will translate into a further reduction in the bank rate, which tends to move in quarter-point steps.
 

Will mortgage rates fall?

As a general rule, if the Bank of England lowers interest rates then mortgage rates tend to fall as well. 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 rates have fallen from a peak in 2023. Rate cuts accelerated in April as financial markets moved their expectations for rates this year lower but have been rising again recently. As of 18 December 2025, the best rate on a five-year fixed rate mortgage was 3.75%1.

Will cash savings rates fall?

The rates you see on cash savings are set by account providers who compete with each other to win savers’ deposits. While not directly linked to movements in the Bank of England rate, they do tend to correlate with it. The predicted falls in the Bank Rate are, therefore, likely to be accompanied by falling savings rates as well. 

The rates on best-buy cash accounts have been declining since last summer. This has pushed headline rates lower but has also encouraged savings providers to add in conditions which potentially reduce the rate you get. Many of the highest-paying accounts include an element of interest which is temporary and will fall out after six months or a year. Alternatively, you may lose several months interest if you withdraw money from the account. 

Currently, the highest interest is being paid on Cash ISA accounts. As of 18 December 2025, the best rate on a Cash ISA which allows easy access to your money is 4.52%2.  
 

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. Prizes are tax free but the rates of return on Premium Bonds have also been falling. Moreover, 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 return 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 and is forecast to produce 4.46% of income in the coming year - or 4.11% after deducting the Fidelity platform charge of 0.35%. Please note this yield could go down or up and is not guaranteed.

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 - 

Please note that interest rates can be changed at any time and the rates below have been applied since 1 December 2025. 

Account Gross rate of annual interest Annual Equivalent Rate (AER)
ISA (including Junior ISA) 2.45% 2.48%
Investment Account 2.45% 2.48%
Cash Management Account 2.45% 2.48%
SIPP (including Junior SIPP) 2.50% 2.53%

Source:

1 London & Country, 18 December 2025

2 MoneySavingsExpert 18 December 2025

 

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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