Fixed Rate

Cynergy Bank 18 Month Fixed Rate Bond Review

One of the best-paying 18-month fixed rate bonds, from Cynergy Bank, with a £1,000 minimum deposit. It ranks 2nd of 15 18-month fixed rate bonds we track.

Fixed rate · 18 months

5.05%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

Annually

How It Stacks Up

Ranks 2nd of 15

18-month fixed bonds we track

Among the best
This account 5.05%
UK CPI (Aug 2026)
3.10%
Pays 1.95% more
Average 18-month fixed
4.62%
Pays 0.43% more
Best 18-month fixed
5.12%
Pays 0.07% less

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 18 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

See all Cynergy Bank accounts

Estimated returns with Cynergy Bank's Fixed Rate

What you could earn with Cynergy Bank's 18 Month Fixed Rate Bond.

Estimated interest

£1,000 saved

£76.70

At 5.05% AER

£5,000 saved

£383

At 5.05% AER

£10,000 saved

£767

At 5.05% AER

£1,000,000 saved

£76,698

At 5.05% 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 Cynergy Bank 18 Month Fixed Rate Bond

Jonny PeaseCo-Founder, DepositScout

Cynergy Bank's 18 Month Fixed Rate Bond pays 5.05%, which sits near the market average for fixed-rate savings and 0.30% behind the best available fixed rate of 5.35%. It beats August 2026 CPI of 3.1% by 1.95 percentage points, so your money does grow in real terms. The main catch is that access is completely locked until maturity, so only commit money you won't need for 18 months. If you want a slightly better rate for the same term, Union Bank of India (UK) Ltd offers 5.12%.

Compare Fixed Rate Bonds

2 alternatives to Cynergy Bank's 18 Month Fixed Rate Bond

Same type of account, closest on rate.

Common questions about the 18 Month Fixed Rate Bond

D

DepositScout Alerts

2 minutes ago

Easy Access rate just dropped

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

Nationwide FlexSaver Rate Down
4.20% AER
4.75%
View Best Rates
Live Market Tracking

Be the first to know when this Cynergy Bank 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.

Takes 30 seconds · No spam · Unsubscribe any time