What interest rate does the Monmouthshire Building Society 1 Year Fixed Rate Bond pay?

The Monmouthshire Building Society 1 Year Fixed Rate Bond pays 4.35% AER, fixed for one year.

How much interest could I earn?

Saving £10,000 for 1 year would earn about £435 at 4.35% 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 £2,000,000.

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 annually or at the end of the term.

Who can open this account?

New and existing Monmouthshire Building Society customers can open it. You can open it online, in branch or in the app.

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 one-year fixed rate bonds?

At 4.35% AER it ranks 59th of 77 one-year fixed rate bonds we track. The best pays 5.15% and the average is 4.60%.

Dashboard

Fixed Rate Compare 1 Year Fixed Rate Bonds

Monmouthshire Building Society 1 Year Fixed Rate Bond Review

A one-year fixed rate bond from Monmouthshire Building Society, with a £1,000 minimum deposit. It ranks 59th of 77 one-year fixed rate bonds we track.

Rate checked Oct 2026Got this account? Leave a review

Fixed rate · 1 year

4.35%AER

Rate checked Oct 2026Got this account? Leave a review

Protection

FSCS£120,000

Min balance

£1,000

Max balance

£2,000,000

Access

At maturity only

Interest paid

Annually/On maturity

How It Stacks Up

Ranks 59th of 77

1-year fixed bonds we track

Below average

This account 4.35%

UK CPI (Aug 2026): 3.10%; Pays 1.25% more
Average 1-year fixed: 4.60%; Pays 0.25% less
Best 1-year fixed: 5.15%; Pays 0.80% 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 1 year
Con: You need at least £1,000 to open it

Good to Know

You can pay money into your account within the first 30 days of opening, up to the maximum balance.

Please verify all details with the provider – see our Disclaimer

See all Monmouthshire Building Society accounts

Estimated returns with Monmouthshire Building Society's Fixed Rate

What you could earn with Monmouthshire Building Society's 1 Year Fixed Rate Bond.

Estimated interest

£1,000 saved

£43.50

At 4.35% AER

£5,000 saved

£218

At 4.35% AER

£10,000 saved

£435

At 4.35% AER

£2,000,000 saved

£87,000

At 4.35% AER

Estimated over one year, 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 Monmouthshire Building Society 1 Year Fixed Rate Bond

Jan WatermannCo-Founder, DepositScout

Monmouthshire Building Society's 1 Year Fixed Rate Bond pays 4.35%, which sits below the market average for fixed-rate bonds and 1.02% behind the category leader at 5.37%. At that gap, I would seriously consider Atom Bank's 1 Year Fixed Saver at 4.90% or Sensible Savings at 4.82% before committing here. The rate does beat August 2026 CPI of 3.1% by 1.25%, so your money grows in real terms, but the account locks your funds away with no access until maturity, which is the main thing to weigh up.

Compare Fixed Rate Bonds