What interest rate does the Cynergy Bank 6 Month Fixed Rate Bond pay?

The Cynergy Bank 6 Month Fixed Rate Bond pays 4.57% AER, fixed for 6 months.

How much interest could I earn?

Saving £10,000 for 6 months would earn about £226 at 4.57% 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?

Interest is paid at the end of the term.

Who can open this account?

New and existing Cynergy Bank customers can open it.

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 six-month fixed rate bonds?

At 4.57% AER it ranks 2nd of 15 six-month fixed rate bonds we track. The best pays 4.60% and the average is 4.07%.

Dashboard

Fixed Rate

Cynergy Bank 6 Month Fixed Rate Bond Review

One of the best-paying six-month fixed rate bonds, from Cynergy Bank, with a £1,000 minimum deposit. It ranks 2nd of 15 six-month fixed rate bonds we track.

Rate checked Oct 2026Got this account? Leave a review

Fixed rate · 6 months

4.57%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

On maturity

How It Stacks Up

Ranks 2nd of 15

6-month fixed bonds we track

Among the best

This account 4.57%

UK CPI (Aug 2026): 3.10%; Pays 1.47% more
Average 6-month fixed: 4.07%; Pays 0.50% more
Best 6-month fixed: 4.60%; About the same

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

Compare fixed bonds

A Good Fit For

Pro: New and existing savers

Worth Weighing Up

Con: Your money is locked in for 6 months
Con: You need at least £1,000 to open it

Good to Know

Open online to UK tax residents aged 18+; minimum deposit £1,000, maximum £1,000,000. Existing customers can apply via Fast Track in Online Banking.

Please verify all details with the provider – see our Disclaimer

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Estimated returns with Cynergy Bank's Fixed Rate

What you could earn with Cynergy Bank's 6 Month Fixed Rate Bond.

Estimated interest

£1,000 saved

£22.59

At 4.57% AER

£5,000 saved

£113

At 4.57% AER

£10,000 saved

£226

At 4.57% AER

£1,000,000 saved

£22,595

At 4.57% AER

Estimated over the 6-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 Cynergy Bank 6 Month Fixed Rate Bond

Jan WatermannCo-Founder, DepositScout

Cynergy Bank's 6 Month Fixed Rate Bond pays 4.57%, which beats August 2026 CPI of 3.1% by 1.47%, so your money does grow in real terms over the short fix. That said, the rate sits below the market average for fixed-rate accounts and is 0.78% behind the category leader at 5.35%, so this is not a standout pick. The money is locked until maturity with no access, which is the main constraint to weigh for a six-month commitment starting from £1,000. Zopa's Fixed Term Pot at 4.60% is worth a look if you want a marginally better six-month rate.

Compare Fixed Rate Bonds