1.

Generous tax-free allowances.

This tax year, 2019/20, you can shelter up to £20,000 per individual   (£40,000 per couple) into an Investment ISA as a lump sum.

From 6^th April 2020 you can shelter another £20,000   (£40,000 per couple) into an Investment ISA, either as a lump sum or by   monthly contributions over the year.  

2.

Free from income tax and capital gains tax. 

An Investment ISA fund is free from capital gains tax and income tax.   This means the capital growth is far better than any other form of investment   such as a unit trust or investment trust. As a tax free investment you do not   declare ISAs on your tax returns.

3.

Full control of your investments.

You have total control over your investments. What you invest in, when   to change investments and when to sell them to get the best return, which is   essential in a fast changing investment market. We will help you every step   of the way.

4.

Full access and flexibility

ISA funds are always liquid for tax-free lump sum withdrawals or to   provide a tax-free monthly income. Building a portfolio of ISAs is an ideal way   to provide you with a tax-free income in retirement.
  You can transfer your accounts without restriction or tax charge. A Cash ISA   can now be transferred to a Stock & Shares ISA, and vice versa.

5.

Use it, don’t lose it!

This tax year up to the 5^th April 2020, you can now   invest up to £20,000 and protect your money from the taxman. You can even   invest another £20,000 after the 6^th April 2020.
  Remember that your 2019/20 ISA allowance must be used by 5^th April   2020. You cannot ‘roll over’ your ISA investment allowance into the following   tax year. If you don’t use this year’s allowance before the 5^th April   then you will have missed out on the opportunity to shelter more of your   savings and investments from tax. So make sure you purchase your allowance   each year.

6.

Build a fund for a tax-free income in retirement

Year by year you have the opportunity to build up a Portfolio of   Investment ISAs to provide tax free income in retirement.  When you retire, or even before retirement,   you could draw a tax-free income from your ISA Portfolio.  This would be a sensible alternative   strategy to drawing on your pension income, which of course is taxable. 
  This would preserve your pension fund, as under the new Pension Freedoms your   pension fund could be passed to your children - free of IHT or death tax.

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