September 2025’s savings round-up & news

The latest news to help you get the most from your savings account.

Here’s my monthly update sharing changes at leading UK savings accounts, as well as some of the articles you might have missed on the site.

Some articles on the site contain affiliate links, which provide a small commission to help fund our work. However, they won’t affect the price you pay or our editorial independence. Read more here.

September’s savings news

Make sure you’re getting a decent rate

With inflation hitting 3.8%, and due to reach 4% soon, there’s a good chance you’re earning less than this thanks to the recent cuts to savings rates following last month’s base rate cut.

Though a lot of easy access are now trackers, so fell by the same 0.25%, others reduced by more. One example here is CMC Invest’s Cash ISA, which has offered a decent 4.59% for a while, but will fall to 3.95% from 10 September. To be fair, other providers will have dropped by as much, but not in one go!

So remember to check what you’re earning and see if you can move your money for more.

More easy access restrictions at top of the tables

With the recent round of rate cuts I’ve spotted that more and more the top paying easy access accounts have restrictions. Though for a while we’ve had a few with limited balances or bonuses for new customer only, there are now more limited access accounts at the top.

That won’t be a problem if you are keeping cash in these accounts for emergencies or set expenses rather than frequent withdrawals. But if you are dipping in and out a lot, you can expect to earn less.

Barclays to cut Rainy Day saver rate AGAIN

For the second month in a row, and the third time this year, the Barclays Rainy Day Saver is being reduced. What was once right near the top at 5% on balances of up to £5,000 now pays 4.36%. From 30 October it’ll pay 4.21%.

Though many other banks have reduced rates after the base rate cut, you can still do better than this, without the limitations.

And if you get this saver via the Blue Rewards adds on, you’re also paying £5 a month for the privilege, which really cuts down what you get. In fact, the best you can get in reality is 2.93%.

Only those who access it via the Premier Bank account won’t pay this charge and get the full 4.21% AER.

New 7% regular saver from Monmouth

Last month we shared a new 6% regular saver from Welsh building society Monmouth. If you managed to open this before 20 August 2025, or were already a member by this date through a different account or mortgage, then they’ve gone one step further.

The new app only regular saver will pay an excellent 7% AER for 12 months. The rate is variable, so it could change, but there are only a handful of this type of account that pay more.

But where this stands out is the huge monthly maximum deposit – double the next best limit. You can pay in £1,000 each month, meaning there’s potentially £12,000 you can put away at 7%. If you did this you’d earn a huge £454 over the year.

Withdrawals are allowed too, though you can still only deposit up to that £1,000 cap each month.

You can open an account with the same rate in a branch, but it’ll limit you to deposits of £500 a month.

Account name	App exclusive Regular Saver
Max interest in one year	£453.95
Interest rate	7% AER (variable)
Max monthly deposit	£1,000
Min monthly deposit	£0
Carry over unused allowance?	No
Account closes	After 12 months
Auto renews	No
Withdrawals	Withdraw as you wish
Requirements	Must have been an existing Monmouthshire Building Society customer since before 20 August 2025 and need to open the account via the app

Why I don’t rate the 7.5% regular saver

I’ve been a little dismissive of Principality Building Society’s 7.5% paying regular saver as it runs for just six months and has a relatively low monthly cap by comparison of £200. It means the interest gained will be at most £26 over half a year.

However, one reader has pointed out that when the six months is up, you can just open up another one to keep earning that 7.5%. That’s true, and something I do myself on 12 month regular savers.

The problem is you won’t be earning that rate on the money you’d saved over the previous six months. Here’s a quick comparison, with £200 added every month.

Rate	After six months	After 12 months
7.5%	£26	£52 (having reopened and started again)
7%	£24	£90
4%	£14	£52

So starting again after six months with Principality would give you the exact same interest over a year as if you’d put the money into a 4% paying regular saver.

Of course you can say that you’d move the matured cash after the first six months into wherever pays the best interest (and you should). Let’s say that total of £1,252 is earning 4% in easy access. If you kept it there for six months it’d make an extra £25, and a combined total after a year of £77.

But in comparison, just starting with a 7% regular saver for a year would earn you £90 after a year. So I’ll stick with my view that it’s not really worth it.

September’s savings offers

We’ll share any other deals in our savings deals page if any more come along.

Top savings accounts for September 2025

Remember, these are the accounts at the top of the tables. We’ve more options in our best savings accounts page, which is updated every day by the team.

Current account linked saver picks as of 1/9/25

• Santander Edge Saver (6% AER variable, includes 2% bonus for 12 months) – max £4,000
• Nationwide (5% AER variable for 12 months) – max £1,500 – new customers only
• Chase Saver (4.75% AER variable, includes 2.25% bonus for 12 months) – new customers only

Easy & limited access picks as of 1/9/25

• Cahoot Sunny Day Saver (5% AER variable) – max £3,000, 12 months only
• Principality Building Society (4.45% AER variable) – max three withdrawals a year
• Cahoot (4.4% AER variable) – 12 months only
• Nottingham Building Society (4.35% AER variable)

Easy access ISA picks as of 1/9/25

• Principality Building Society (4.4% AER variable) – max five withdrawals a year
• Trading 212 (4.38% AER variable) – new customer rate only
• Vida Savings (4.38% AER vairable) – max four withdrawals a year
• Kent Reliance (4.32% AER variable)

Notice accounts picks as of 1/9/25

• 2 months notice GB Bank via Prosper (4.52% AER variable): 65-days notice
• 3 months notice GB Bank (4.5% AER variable): 95-days notice
• 6 months notice Stafford Building Society (4.61% AER variable): 180-days notice

Fixed savings accounts picks as of 1/9/25

• 6 months Cynergy (4.4% AER fixed)
• 9 months Atom (4.3% AER fixed)

• 12 months JN Bank (4.52% AER fixed)
• 12 months Shawbrook via Raisin (4.33% AER fixed + £100 bonus = 5.33% equivalent)

• 18 months Cynergy Bank (4.33% AER fixed)
• 2 year Chetwood Bank (4.5% AER fixed)
• 3 year Chetwood Bank (4.5% AER fixed)

• 4 year JN Bank (4.4% AER fixed)
• 5 year JN Bank (4.52% AER fixed)

Fixed ISA accounts picks as of 1/9/25

• 12 months Chetwood Bank (4.32% AER fixed)
• 2 years United Trust Bank (4.22% AER fixed)
• 3 years United Trust Bank (4.23% AER fixed)
• 4 years UBL (4% AER fixed)
• 5 years Shawbrook (4.25% AER fixed)

Lifetime ISA pick as of 1/9/25

• Plum Lifetime ISA (4.6% AER variable)

Regular Saver accounts (exisiting customer) picks as of 1/9/25

• Zopa Regular Saver (7.1% AER variable): max £300 a month
  • requires a Biscuit (by Zopa) current account
• First Direct Regular Saver (7% AER fixed): max £300 a month
  • requires a First Direct current account
• Monmouthshire Building Society (7% AER variable): max 1,000 a month
  • must have been a customer before 20 August 2025)
• Co-operative Bank Regular Saver (7% variable): max £250 a month
  • Requires a Co-op Bank current account

Regular Saver accounts (for all) picks as of 1/9/25

• Monmouthshire Building Society (6% AER variable): max £500 a month