skip to main content
ISA Calculator /

Nationwide ISA Calculator

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

Investment ISA

from Nutmeg

Allows ISA Transfers
  • Protection Scheme: FSCS
  • Fund Choice: Managed or Fixed Allocation
  • Invest From: Min. £500 single (+ £100 pm for ISAs below £5,000)

Why we like it: Get an intelligent stocks & shares ISA portfolio - Choose a portfolio that's fully managed by our expert team or a fixed allocation portfolio. No tie-ins, no set-up fees, no exit charges. Easy, online set up in minutes. Start with as little as £500 (plus £100 per month for ISAs below £5,000). Portfolio management fees of 0.45%-0.75% up to £100k. 0.25%-0.35% beyond £100k. There are also underlying investment charges, see our fees page. Plus, live chat, amazing customer support and brilliant investor tools and guides. Authorised and regulated by the FCA. Capital at risk.

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:

  • Amount saved
  • Interest rate earned
  • 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:

  • You will deposit money into your account on a regular basis
  • There will be no withdrawals made
  • The market will stay broadly steady
  • Interest rates will remain productive
  • 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 »

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.

High Income ISAs

High income ISA ideas:

ISAs Products

Cash ISAs

Fixed Rate & Instant Access ISAs:

Cash ISAs: 

Stocks & Shares ISAs

Types of Stocks and Shares ISA include: 

Stocks and Shares ISAs

Latest News

How To Select The Best Junior Stocks & Shares ISA

15th February 2018

An ISA is an individual savings account that offers the chance for individuals to earn up to £20,000 tax-free interest.Not only can those who subscribe to an ISA benefit from tax-free interest from savings, but also enjoy the freedom to invest from their ISA and avoid paying tax on their returns.

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

4.89 Average

35 Reviews

Paul

Very informative, find myself a good ISA account with best return in terms of interest.

Anonymous

Easy to navigate, all required information was to hand. Professional looking site!

Jessica Esa

ISA.co.uk has a really attractive and simplistic design. I've found it easier to use than other similar comparison sites. The products are simply described, it's informative and the pros and cons are really clear. Great website.

Sue

Easy to use website and up to date. Saved the link on my tablet.

Rob Holden

The website was very useful and informative.

Andrew Johnson

ISA can be confusing at first and this site includes a useful and helpful introduction into the world of ISAs

Crowd2Fund

Excellent website - clear and helpful information about different products - and a trustworthy partner.

Anonymous

Quick and professional service provided

Anonymous

Very insightful and easy to navigate.. would recommend to anyone interested

Helen Belcher

Clear concise information that was easy to understand!

Sue

Easy to use website and up to date. Saved the link on my tablet.

Adam

simple, informative and clear - found what I was looking for straight away. Thank you.

Steve

Really simple to use and all the information was clear with lots of products available. The interest calculator was really handy too. Have bookmarked and will definitely use again.

Marion

Very helpful site for my investment isa

Hannah Gordon

This was a really user-friendly site, and was very helpful when it came to comparing accounts and choosing my 2016 ISA.

Sue

Easy to use website and up to date. Saved the link on my tablet.

Anonymous

If you wish to invest in an ISA this site has it all. A super comprehensive range of simply explained products from all the major companies.

Cristina Iacob

Very knowledgeble company with an extensive range of services, a great website with loads of useful information.

Jessica Morley

Really informative and easy to use site. Information is laid out very clearly and comparisons have all the plus & minuses I'm interested in, so makes me feel like I am making an informed decision. There was also a lot of additional information which would be incredibly helpful to someone completely new to ISAs who wanted to read up on the basics.

Sam H

excellent website, helped me to understand how i can get started with ISA's and helped me to narrow down great deals!

Anonymous

Nice graphics and easy to navigate

Dr Alan Rogan BSc PhD FCIOB FCABE Eur Ing

Good advice and professional approach

Razvan

Very helpful for getting my annual ISA

Oliver

Contemporary, easy to read and up to date.

Jonny Doulton

Clear, concise and very professional outfit with an excellent choice of market leading deals.

Julie

A very informative website, with lots of ideas to help make my choice.

Paul Tissington

ISA.co.uk not only helped narrow down my choices for a Junior ISA but also provided additional practical information that helped demystify the whole process.

Sunil Karadia

Just the site I needed, I have been looking for a suitable ISA for a while, but as there are so many to choose from, find it difficult to find the right one for me.

James Weatheritt

I found the information on ISA.co.uk very helpful and easy to understand. The site is easy to navigate and find what you're looking for.

Lisa Holden

I found ISA.co.uk very insightful and easy to navigate through. The content was useful and helped me make my ISA decision.

Neta Pourhosseini

I thought the information provided was easy to understand and very informative, I would recommend to friends for deffinite.

Emma Caldwell

Found a good isa option for my son.

Robert Murray

Great selection of Isa products, useful information and a very user friendly site

Oliver Roylance-Smith

The place to go for all things ISA related. A great range of ideas for Cash and Investment ISAs. Easy to use.

J Caldwell

Very helpful site. Good range of options for my 2016/17 ISA.