What interest rate does the UBL UK 18 Months Fixed Rate Cash ISA pay?

The UBL UK 18 Months Fixed Rate Cash ISA pays 4.15% AER fixed.

How much interest could I earn?

Saving £10,000 for 18 months would earn about £629 at 4.15% AER. This assumes the rate stays the same and interest stays in the account.

How much can I pay in?

You can deposit at least £2,000 and up to £20,000.

When is interest paid?

You can choose to have interest paid monthly, quarterly, annually or at the end of the term.

Who can open this account?

New and existing UBL UK customers can open it. You can open it online, in branch, by post, in the app or by phone.

Is my money protected?

Yes. Eligible deposits are protected by the Financial Services Compensation Scheme (FSCS) up to £120,000 per person, per banking licence.

Can I transfer an existing ISA in?

Yes, transfers in from other ISAs are accepted.

How does it compare with other 18-month cash ISAs?

At 4.15% AER it ranks 4th of 4 18-month cash ISAs we track. The best pays 4.70% and the average is 4.41%.

Dashboard

Cash ISA Compare 18 Month Fixed Rate Cash ISAs

UBL UK 18 Months Fixed Rate Cash ISA Review

Q: Can I withdraw my money?

Access: No withdrawals without penalty.

An 18-month cash ISA from UBL UK, with a £2,000 minimum deposit. It ranks 4th of 4 18-month cash ISAs we track.

Rate checked Oct 2026Got this account? Leave a review

Fixed rate · 18 months

4.15%AER

Rate checked Oct 2026Got this account? Leave a review

Protection

FSCS£120,000

Min balance

£2,000

Max balance

£20,000

Access

No withdrawals without penalty

Interest paid

Monthly/Quarterly/Annually/On maturity

Transfers in

Accepted

How It Stacks Up

Ranks 4th of 4

18-month cash ISAs we track

Below average

This account 4.15%

UK CPI (Aug 2026): 3.10%; Pays 1.05% more
Average 18-month cash ISA: 4.41%; Pays 0.26% less
Best 18-month cash ISA: 4.70%; Pays 0.55% less

Inflation: ONS. Averages and best rates: accounts on DepositScout.

Compare cash ISAs

A Good Fit For

Pro: New and existing savers
Pro: Savers who want a monthly income

Worth Weighing Up

Con: You need at least £2,000 to open it
Con: Not flexible: money you withdraw can't be replaced without using more allowance

Good to Know

Early withdrawals will result in a loss of 135 days gross interest.

Please verify all details with the provider – see our Disclaimer

See all UBL UK accounts

Estimated returns with UBL UK's Cash ISA

What you could earn with UBL UK's 18 Months Fixed Rate Cash ISA.

Estimated interest

£5,000 saved

£314

At 4.15% AER

£10,000 saved

£629

At 4.15% AER

£20,000 saved

£1,258

At 4.15% AER

Estimated over the 18-month term, if the rate stays the same and interest is left in. Amounts outside the account's minimum or maximum aren't shown.

Our Expert Opinion on UBL UK 18 Months Fixed Rate Cash ISA

Jan WatermannCo-Founder, DepositScout

UBL UK's 18 Month Fixed Rate Cash ISA pays 4.15%, which sits below the cash ISA market average and 1.10% behind the category leader at 5.25%, so it is hard to recommend on rate alone. That said, it does beat August 2026 CPI of 3.1% by 1.05%, so your money grows in real terms. The deposit window is narrow at £2,000 minimum and £20,000 maximum, and the no-withdrawals-without-penalty rule means your money is genuinely locked away for the full 18 months. Secure Trust Bank offers an 18 Month Fixed Rate Cash ISA at 4.70%, which I would look at first.

Compare Cash ISAs

1 alternatives to UBL UK's 18 Months Fixed Rate Cash ISA1 alternatives to UBL UK's 18 Months Fixed Rate Cash ISA

Same type of account, closest on rate.

Secure Trust Bank
18 Month Fixed Rate Cash ISA
4.70%AER

Common questions about the 18 Months Fixed Rate Cash ISA

DepositScout Alerts

Example alert

Easy Access rate just dropped

A top provider just cut their rate. Here's what you need to know about the latest market shift.

Example Easy Access Saver Rate Down

4.20% AER

4.75%

View Best Rates

Live Market Tracking

Be the first to know when this UBL UK rate drops.

Join 1,000+ savers using DepositScout who get instant email alerts when top UK savings rates change. Never miss out on a better deal again.