skip to main content
ISA Calculator /

Nationwide ISA Calculator

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

Investment ISAs put your capital at risk & you may get back less than you originally invested

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)

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)

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)

Instant Access Cash ISA

from Royal Bank of Scotland

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

Try our free ISA calculator

Click here for our free ISA Calculator »

Using our free ISA interest calculator, you can see how much you could grow your savings with a Nationwide ISA.

The calculator shows how much interest you might earn with different ISAs, based on how much you deposit, the interest rate offered and how long you want to save for.

This provides valuable guidance when deciding how to 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 Nationwide ISA deals

Nationwide is one of a number of different ISA providers, so to make sure you are getting the best deal with your savings it is sensible to compare as many different ISA products as possible. Our free ISA interest calculator makes this as simple as possible.

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 allows you to see how much you will need to deposit into different ISAs to achieve a specific savings goal, or how much you could generate based on the amount you want to deposit each month.

How does our ISA calculator work?

Our calculator gives an estimate of the total growth you may achieve based on the figures you provide. This estimate is for guidance purposes only and the actual amount of growth you see will depend on how interest rates change over time.

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

See how much interest you could earn with a Nationwide ISA

Thinking about taking out a Nationwide ISA? Find out how much you might be able to earn in interest now with our free ISA interest calculator.

Click here for our free ISA Calculator »

Sam Hodgson
Edited by Sam Hodgson - ISA.co.uk
Important Risk Information:

This website contains information only and does not constitute advice or a personal recommendation in any way whatsoever. The value of investments and income from them can fall as well as rise and you may not get back the full amount invested. The tax efficiency of ISAs is based on current tax law and there is no guarantee that tax rules will stay the same in the future.

Different types of investment carry different levels of risk and may not be suitable for all investors. Please ensure that you read the Important Risk Information for further details. Prior to making any decision to invest, you should ensure that you are familiar with the risks associated with a particular investment and should read the product literature. If you are in any doubt as to the suitability of a particular investment, both in respect of its objectives and its risk profile, you should seek independent financial advice.

Lifetime ISAs

Save for your first home and retirement

Compare Lifetime ISAs

Junior ISAs

Invest for your child’s future

Compare Junior ISAs: 

Stocks & Shares ISAs

Invest tax-free in stocks and shares 

Compare Stocks and Shares ISAs:

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". 

Newsletter Signup

Sign up to our Newsletter to get exclusive news and offers direct to your inbox.

About us

ISA.co.uk is a trading style of Fair Investment Company.

We've been comparing and recommending ISAs for many years so you can trust you're in good hands.

About us