Moneyfacts pick of the week

Last updated: 13 March 2026 at 09:30

The Moneyfactscompare.co.uk Pick of the Week showcases the best of the latest products or rate changes to hit the consumer finance market, ranging from mortgages to savings accounts. This week I've analysed the following deals, along with their perks.

The latest update from Plum sees it increase selected rates on its Plum Cash ISA, taking the top position in the Best Buy tables. Paying 4.66% AER it’s one of the most competitive deals currently available; savers can invest as little as £1. However, savers should be cautious of the underlying bonus rate, which is over 2%, so it’s crucial they review the deal after 12 months.

Adding to its appeal, savers have unlimited withdrawals, making it ideal for those who may need to dip into their deposits frequently. Further additions are also permitted. Overall, this deal takes a position as a Moneyfacts ‘Best Buy’ and earns an Excellent Moneyfacts product rating.

Close Brothers Savings has increased the rates across a selection of its Fixed Rate Cash ISAs. The five-year option now pays 4.27% and takes a prominent position in the top tables. Savers will need to deposit at least £10,000 but further additions are permitted for 10 days from the account opening, which may be a bonus for some.

Earlier access is permitted; however, it should be carefully considered as savers will be hit with a 365-days’ loss of interest penalty and closure of the account. This deal may be an enticing option for savers wanting guaranteed returns and to maximise their tax-free savings over the next five years. Overall, the deal earns an Excellent Moneyfacts product rating.

Coventry Building Society has launched a new Fixed Rate ISA this week. It pays a market-leading 4.21% AER until 31 May 2027 yearly but there is a monthly version available to savers wanting a more regular boost. To open the account investors only need £1 and further additions are permitted for 14 days or while the issue is open, depending on whichever is longer, which will add to its appeal.

While earlier access is permitted, as is the case with many Cash ISAs, savers will be subject to an interest paid penalty and closure of the account, which should be taken into consideration. Overall, this receives an Excellent Moneyfacts product rating.

This week Furness Building Society has increased the rates on a selected range of its Fixed Rate ISAs. One deal to benefit from a boost is the two-year option which now pays a market-leading 4.20%. Savers will need to deposit at least £1,000, but further additions aren’t permitted, they must be comfortable with their final investment amount.

If investors plan on accessing their cash early, they should note that doing so will result in account closure and a 180-day loss of interest penalty which will reduce their final sum. This account may appeal to those looking for fixed returns while the future of interest rates remains uncertain. Overall, this receives an Excellent Moneyfacts product rating.

Castle Trust Bank has increased the return on its 3 Year Fixed Rate e-Cash ISA, and now pays a top 10 rate at 4.12%. The account is a good option for savers with at least £1,000 to save and comfortable with locking away their cash for the full term, otherwise they face a significant 270-day interest loss penalty and account closure.

Adding to the account’s appeal, savers looking for some flexibility will find that further additions are permitted for 14 days from the account opening. On assessment, this receives an Excellent Moneyfacts product rating