Our Cash ISA

Easy set up. Easy top up. Easy tax-free saving

We are the first Retail bank to be awarded the 5 star accreditation by Fairbanking.

Cash ISA

Instant access tax-free savings

Time is running out to make the most of your 2014/2015 cash ISA allowance of up to £15,000.

The 2014/2015 tax year ends on Sunday 5th April and you will need to act before this date if wishing to open a cash ISA for 2014/2015 tax year.

For key dates, please see ‘Important Information’ on the screen that appears after you click ‘Apply now’


Our instant access Cash ISA lets you:

  • Access your money instantly – there are no withdrawal penalties, so you can take money out whenever you want
  • Save your way – either in a lump sum, by standing order or simply pay in when you want to
  • Maximise your cash ISA allowance – save from £1 up to £15,000 in the 2014/2015 tax year up to 5th April 2015. Then from 6th April 2015 the 2015/2016 tax year starts and you may save up to £15,240 between 6th April 2015 to 5th April 2016.
  • Transfers in – bring all your cash ISAs together in one place
  • Watch your savings grow – interest is calculated daily and paid monthly directly into your account
  • Manage your account – Online, Mobile, in branch or by phone

What you should know

  • The interest rate is variable, so it can go up as well as down
  • Interest is paid monthly
  • Tax- free interest and tax free savings means that interest payable is exempt from UK income tax
  • Once you've paid in your full year's cash ISA allowance, you can't replace any money you've withdrawn in the same tax year

Please note: You will need your National Insurance number during the application.

Apply now


Transfer in



Tax-free p.a.







Annual Equivalent Rate (AER). This is a notional rate used for interest bearing accounts which illustrates the interest rate if paid and compounded each year. It helps you to compare the effective rates of credit interest on different accounts.

Tax-free interest means interest payable is exempt from UK income tax.

Mobile Banking. Should you decide you would like the added option to easily manage your instant access Cash ISA with our app, you can download the app here. It's easy to set up and top-up through the app. Functionality to open a cash ISA is only available on iPhone and Android.

Mobile Banking is available on selected smartphones to NatWest personal account customers, with Online Banking, a debit card, and a UK mobile number.

Need more help?

Want to know more about cash ISAs?

Our practical guides, explanatory videos and simple FAQs will give you all the information you need.

Getting started with an ISA

Got a question?

Got a NatWest ISA?

Manage your savings

Helpful banking

Protecting your money

Protecting your money - FSCSYour eligible deposits with NatWest are protected up to a total of £85,000 by the Financial Services Compensation Scheme, the UK’s deposit protection scheme. Any deposits you hold above the £85,000 limit are not covered.

Further information is available here (650K PDF) or visit

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