What interest rate does the Aldermore 18 Month Fixed Rate Savings Account pay?

The Aldermore 18 Month Fixed Rate Savings Account pays 4.93% AER, fixed for 18 months.

How much interest could I earn?

Saving £10,000 for 18 months would earn about £749 at 4.93% 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 £1,000 and up to £1,000,000.

Can I withdraw my money?

No. Your money is locked in until the fixed term ends, so only put in what you won't need before then.

When is interest paid?

You can choose to have interest paid monthly or annually.

Who can open this account?

New and existing Aldermore customers can open it. You can open it online.

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.

How does it compare with other 18-month fixed rate bonds?

At 4.93% AER it ranks 2nd of 14 18-month fixed rate bonds we track. The best pays 5.12% and the average is 4.63%.

Dashboard

Fixed Rate

Aldermore 18 Month Fixed Rate Savings Account Review

One of the best-paying 18-month fixed rate bonds, from Aldermore, with a £1,000 minimum deposit. It ranks 2nd of 14 18-month fixed rate bonds we track.

Rate checked Oct 2026Got this account? Leave a review

Fixed rate · 18 months

4.93%AER

Rate checked Oct 2026Got this account? Leave a review

Protection

FSCS£120,000

Min balance

£1,000

Max balance

£1,000,000

Access

At maturity only

Interest paid

Monthly/Annually

How It Stacks Up

Ranks 2nd of 14

18-month fixed bonds we track

Among the best

This account 4.93%

UK CPI (Aug 2026): 3.10%; Pays 1.83% more
Average 18-month fixed: 4.63%; Pays 0.30% more
Best 18-month fixed: 5.12%; Pays 0.19% less

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

Compare fixed bonds

A Good Fit For

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

Worth Weighing Up

Con: Your money is locked in for 18 months
Con: You need at least £1,000 to open it

Good to Know

Deposits only within 14 days of opening. No withdrawals, transfers out, or closures before maturity (except in exceptional circumstances).

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Estimated returns with Aldermore's Fixed Rate

What you could earn with Aldermore's 18 Month Fixed Rate Savings Account.

Estimated interest

£1,000 saved

£74.85

At 4.93% AER

£5,000 saved

£374

At 4.93% AER

£10,000 saved

£749

At 4.93% AER

£1,000,000 saved

£74,854

At 4.93% 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.

Work out the tax on your interestSee how much of this interest could be taxed.

Our Expert Opinion on Aldermore 18 Month Fixed Rate Savings Account

Jan WatermannCo-Founder, DepositScout

Aldermore's 18 Month Fixed Rate Savings Account pays 4.93%, which sits near the market average for fixed-rate accounts and is 0.44% behind the current market leader at 5.37% across all terms. That said, 4.93% does beat August 2026 CPI of 3.1% by 1.83%, so your money is at least growing in real terms. The account needs a minimum of £1,000 and you get no access until maturity, which is the main thing to weigh up before committing. It suits savers who want a straightforward fixed return and can leave their money untouched for eighteen months.

Compare Fixed Rate Bonds