Best 6 Month Fixed Rate Bonds in October 2026

Compare 5 six-month fixed rate bonds paying up to 4.62% AER

The best six-month fixed rate bond pays 4.62% AER, from GB Bank. We track 5 six-month bonds from 5 UK banks and building societies, and the middle of the pack pays 4.57%. £10,000 in the top bond today earns £228 by April 2027.

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Last updated
GB Bank bank logo

GB Bank

4.62%
AER
Fixed
Interest Paid
On maturity
Access
6 Months
Zopa bank logo

Zopa

4.60%
AER
Fixed
Interest Paid
Monthly
Access
6 Months
Cynergy Bank bank logo

Cynergy Bank

4.57%
AER
Fixed
Interest Paid
On maturity
Access
6 Months

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Atom Bank bank logo

Atom Bank

4.55%
AER
Fixed
Interest Paid
Monthly/Annually
Access
6 Months
Kent Reliance bank logo

Kent Reliance

4.41%
AER
Fixed
Interest Paid
Monthly/Annually
Access
6 Months

Showing 5 of 5 results

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Our top 3 six-month bonds reviewed

GB Bank bank logo

GB Bank

1. 6 month fixed rate bond

4.62% AER fixed

For 6 months

Best for: the highest rate

GB Bank's 6 month fixed rate bond pays 4.62% AER, fixed for 6 months. That's the top rate on this page right now.

You need at least £1,000 to open it and it holds up to £100,000. £10,000 left in over the 6 months would earn about £228.

Min balance
£1,000
Max balance
£100,000
Access
No access until maturity
Interest paid
On maturity

Worth knowing

  • Your money is locked away until the fixed term ends.
Our take · Jonny Pease, Co-Founder

GB Bank's 6 month fixed rate bond pays 4.62%, which does beat August 2026 CPI of 3.1% by 1.52%, so your money at least grows in real terms over the short term.

That said, the rate sits below the market average across fixed rate bonds, and the market leader in that category is paying 5.37%, putting this 0.75% behind. You can deposit between £1,000 and £100,000, but there is no access until maturity, so this suits someone parking a defined sum they genuinely will not need for six months.

Zopa's Fixed Term Pot at 4.60% is worth a look as a close alternative.

Zopa bank logo

Zopa

2. Fixed Term Pot (6 Months)

4.60% AER fixed

For 6 months

Best for: monthly interest

Zopa's Fixed Term Pot (6 Months) pays 4.60% AER, fixed for 6 months. That's 0.02 percentage points below the top rate here.

You can open it with as little as £1 and it holds up to £250,000. £10,000 left in over the 6 months would earn about £227.

Min balance
£1
Max balance
£250,000
Access
No access until maturity
Interest paid
Monthly

Worth knowing

  • Your money is locked away until the fixed term ends.
Our take · Jan Watermann, Co-Founder

Zopa's six-month Fixed Term Pot pays 4.60%, which sits below the market average for fixed-rate accounts and 0.77% behind the current market leader at 5.37%, so it is not the sharpest rate available right now.

That said, it does beat August 2026 CPI inflation of 3.1% by 1.50 percentage points, which at least preserves real value.

The main catch is the usual one for fixed bonds: your money is locked away with no access until maturity, though you do get 30 days from opening to add funds up to £250,000. If you want a closer six-month alternative, GB Bank is offering 4.62%.

Cynergy Bank bank logo

Cynergy Bank

3. 6 Month Fixed Rate Bond

4.57% AER fixed

For 6 months

Best for: larger balances

Cynergy Bank's 6 Month Fixed Rate Bond pays 4.57% AER, fixed for 6 months. That's 0.05 percentage points below the top rate here.

You need at least £1,000 to open it and it holds up to £1,000,000. £10,000 left in over the 6 months would earn about £226.

Min balance
£1,000
Max balance
£1,000,000
Access
No access until maturity
Interest paid
On maturity

Worth knowing

  • Your money is locked away until the fixed term ends.
Our take · Jan Watermann, Co-Founder

Cynergy Bank's 6 Month Fixed Rate Bond pays 4.57%, which does beat inflation by 1.47 percentage points against a CPI of 3.1%, but it sits below the market average for fixed-rate accounts and 0.80% behind the category leader at 5.37%. It suits savers who want a short commitment and are comfortable with no access until maturity, with interest paid as a lump sum at the end of the six months.

If you are shopping around, GB Bank's 6 Month Fixed Rate Bond at 4.62% or Zopa's Fixed Term Pot at 4.60% are worth a look for a slightly better return on the same term.

How a six-month bond compares

The best rate in each option today.

ProviderOptionBest rate
L
Lemfi
Easy access5.00%AER
GB
GB Bank
6 month bond4.62%AER
A
Aldermore
9 month bond4.57%AER

What you'll keep after tax

Interest above your Personal Savings Allowance (£1,000 basic rate, £500 higher rate) is taxed. Paid at maturity, this bond's interest falls in 2027/28, taxed at 22%, 42% or 47%.

You put inInterestTax, basicTax, higher
£5,000£114£0£0
£10,000£228£0£0
£20,000£457£0£0
£50,000£1,142£31£270

Interest at 4.62% AER over six months, paid yearly (or at maturity on a fix of a year or less), with no other savings interest. Tax-free amounts use one year's interest.

£21,600

you can save before a basic-rate taxpayer pays tax

£10,800

before a higher-rate taxpayer pays tax

6.37%

a bond must pay to beat the best one-year fixed ISA (4.97%) above that

Work out your own tax

Good to know

The details that change what a bond pays you.

You earn part of the AER

£228

on £10,000 over six months

4.62% is a yearly rate, so over six months you earn about half of it.

Monthly interest

4.60%

best with monthly interest, from Zopa

3 of the 5 can pay monthly. That's about the same as the top rate.

  1. Zopa4.60%
  2. Atom Bank4.55%
  3. Kent Reliance4.41%

Before you open one

Quick checks that save you money later.

  1. You can't add to it later

    Most bonds give you a short window after opening to pay in, then close to new money.

  2. You probably can't take money out

    Most bonds don't allow it at all. The product page says whether yours does.

  3. Diary April 2027

    If you don't act at maturity, most providers move your money into a low-paying easy access account. Set a rate alert for when it's due.

  4. The FSCS limit includes interest

    At 4.62%, £117,320 is the most you can put in and stay within £120,000 at maturity.

Recent rate changes

The latest moves, newest first.

  1. GB
    GB Bank 6 month fixed rate bond4.52% →4.62%
  2. CB
    Cynergy Bank 6 Month Fixed Rate Bond4.35% →4.57%
  3. Z
    Zopa Fixed Term Pot (6 Months)4.50% →4.60%
  4. AB
    Atom Bank 6 Month Fixed Saver4.15% →4.55%

About six-month bonds

Six months is the shortest fix most providers bother with. It's useful when you expect rates to rise and want to go again soon, or when a bonus on your easy access account is about to end.

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6 Month Fixed Rate Bonds FAQs

Answers use the rates in the table above.

Jonathan Pease

Written by

Jonny Pease

Jan Watermann

Reviewed by

Jan Watermann

Last updated

This page is for information only and is not financial advice. Rates and account terms can change at any time — always confirm the details on the provider's website before opening an account. Read our full disclaimer.

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