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Barclays ISA Calculator

See how much interest you could earn with a Barclays ISA.

Instant Cash ISA

from Barclays

Interest Rate (AER) 0.02%
  • Term: Easy Access
  • Deposit from £1
  • Interest paid annually

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

3 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 1.10%
  • Term: 3 Years
  • £1,000 minimum opening balance

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

2 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 1.05%
  • Term: 2 Year

1 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 0.85%
  • Term: 1 Year

1 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 0.40%
  • Term: 1 Year
  • Minimum Deposit £1
  • Interest paid annually
  • ISA transfers also allowed in
  • Maximum deposit £250,000
  • FSCS Protected
  • Winner of Platinum Feefo Trusted Service Award in 2021
  • Must be UK resident and be aged 18 or older
  • No withdrawals permitted

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

30 Day Notice Cash ISA

from Aldermore

Interest Rate (AER) 0.55%
  • Term: Easy Access
  • Early withdrawals are permitted subject to loss of interest equivalent to the notice period
  • Open account with £1000

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

Online Easy Access Cash ISA

from Cynergy Bank

Interest Rate (AER) 0.50%
  • Term: Easy Access
  • Instant access to funds
  • Open account with £500

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

Easy Access Cash ISA

from Coventry Building Society

Interest Rate (AER) 0.30%
  • Term: Easy Access
  • Deposit from £1
  • Interest paid annually or monthly

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

Easy Access Cash ISA

from Shawbrook Bank

Interest Rate (AER) 0.30%
  • Term: Easy Access
  • Interest can be paid monthly or annually
  • ISA transfers in allowed
  • £250,000 maximum balance
  • FSCS Protected
  • Must be UK resident and aged 18 or older
  • No withdrawals permitted

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

Instant ISA Saver

from Nationwide

Interest Rate (AER) up to 0.05%
  • Term: Instant Access
  • Instant access
  • 0.01% interest on balances between £1 and £9,999, 0.03% on balances between £10,000 and £49,999, 0.05% on balances of £50,000 and above
  • Minimum deposit £1
  • Open and manage your account online or in branch
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Must be 16 or older
  • Must be UK resident

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

2 Year Fixed Rate Cash ISA

from Cynergy Bank

Interest Rate (AER) 0.80%
  • Term: 2 Years
  • Minimum deposit £500
  • Available to individual applicants aged 16 or over
  • Access to funds before the end of the term is subject to a fee equivalent to six months’ interest

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

3 Year Fixed Rate Cash ISA

from Shawbrook Bank

Interest Rate (AER) 0.87%
  • Term: 3 Years
  • Interest can be paid monthly or annually
  • ISA transfers in allowed
  • £250,000 maximum balance
  • FSCS Protected
  • Must be UK resident and aged 18 or older
  • No withdrawals permitted

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

1 Year Fixed Rate Cash ISA

from NatWest

Interest Rate (AER) 0.10%
  • Term: 1 Year
  • Instant access – manage your account by phone, in-branch and online
  • Open from £1000
  • Transfers allowed in – bring all your cash ISAs together in one place
  • Must be 16 or over
  • Must be a UK resident

1 Year Fixed Rate Cash ISA

from Royal Bank of Scotland

Interest Rate (AER) 0.10%
  • Term: 1 Year
  • Instant access – manage your account by phone, in-branch and online
  • Open from £1000
  • Transfers allowed in – bring all your cash ISAs together in one place
  • Must be 16 or over
  • Must be a UK resident

2 Year Fixed Rate Cash ISA

from Santander

Interest Rate (AER) Up to 0.20%
  • Term: 2 Years
  • Tax free ISA account
  • Open with £500 or transfer in existing ISA funds
  • 0.20% AER/tax-free for 2 years for savings of £500 and over if you're part of 1|2|3 World or Santander Select
  • FSCS Protected
  • 0.10% for balances of £40,000 or over, 0.01% for balances under £40,000
  • Must be UK resident
  • Must be aged 16 or older

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

2 Year Fixed Rate Cash ISA

from Royal Bank of Scotland

Interest Rate (AER) 0.10%
  • Term: 2 Year
  • Instant access – manage your account by phone, in-branch and online
  • Open from £1000
  • Transfers allowed in – bring all your cash ISAs together in one place
  • Must be 16 or over
  • Must be a UK resident

2 Year Fixed Rate Cash ISA

from NatWest

Interest Rate (AER) 0.10%
  • Term: 2 Year
  • Instant access – manage your account by phone, in-branch and online
  • Open from £1000
  • Transfers allowed in – bring all your cash ISAs together in one place
  • Must be 16 or over
  • Must be a UK resident

Easy ISA

from Santander

Interest Rate (AER) 0.01%
  • Term: Instant Access
  • Tax free ISA account
  • Open with £1 or transfer in existing ISA funds
  • Invest up to £20,000 per tax year
  • FSCS Protected
  • 0.10% for balances of £40,000 or over, 0.01% for balances under £40,000
  • Must be UK resident
  • Must be aged 16 or older

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

Instant Access Cash ISA

from NatWest

Interest Rate (AER) 0.01%
  • Term: Instant Access
  • Instant access – manage your account by phone, in-branch and online
  • Open from £1
  • Transfers allowed in – bring all your cash ISAs together in one place
  • Must be 16 or over
  • Must be a UK resident

Cash ISA Saver

from Lloyds Bank

Interest Rate (AER) 0.01%
  • Term: Instant Access
  • Tax free ISA account
  • Open with £1 or transfer in existing ISA funds
  • Invest up to £20,000 per tax year
  • Interest paid annually
  • FSCS Protected
  • Must be UK resident
  • Must be aged 16 or older

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

Try our free ISA calculator

Click here for our free ISA Calculator »

Our free ISA calculator offers a fast, straightforward way to compare how different Barclays Cash ISAs compare with each other and ISAs offered by other providers.

The calculator lets you see how much interest you might earn depending on how much you deposit, the interest rate you are offered and how long you save for.

This can help you when deciding how to best use your tax-free ISA allowance, which for the 2017/18 tax year is £20,000 (or £4,128 for a Junior ISA).

ISA Investment Plan

Compare ISA deals to see which is best for you

Barclays is just one of many providers offering ISAs and there are also several different types, including cash ISAs, stocks and shares ISAs and innovative finance ISAs. Our free ISA calculator can guide you in determining which ISA will best match your savings goals.

The calculator lets you see the effect of three different factors:

  1. Amount saved
  2. Interest rate earned
  3. Length of time saved for

This means you can see how much you could build depending on which ISA you choose and how much you can afford to deposit. Alternatively, you can see how much you need to save with different ISAs to reach a particular savings goal.

How reliable is our ISA calculator?

The total growth suggested by our calculator is based on the figures you provide, but can only be taken as an estimate as interest rates may vary over the lifetime of your ISA.

Our estimate assumes the following:

  1. You will deposit money into your account on a regular basis
  2. There will be no withdrawals made
  3. The market will stay broadly steady
  4. Interest rates will remain productive
  5. There will be no reduction in the ISA tax-free savings allowance during the term of your account

Find out how much you could earn with a Barclays ISA

Curious how much you could build your savings with a Barclays ISA? Try out our free ISA calculator to see how much interest you could earn with any ISA.

Click here for our free ISA Calculator »

Sam Hodgson
Edited by Sam Hodgson - ISA.co.uk

Lifetime ISAs

Save for your first home and retirement

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Junior ISAs

Invest for your child’s future

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Stocks & Shares ISAs

Invest tax-free in stocks and shares 

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Latest News

5 Considerations for Your Next Investment ISA

15th March 2021

You've decided to invest your savings into a Stocks and Shares ISA. You'll be using your tax-free ISA allowance for this year before the deadline, while also investing your money for your future. But what do you need to consider before opening an account? We've put together a list of our top five considerations for you to think about before you click "apply". 

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