With the ISA deadline looming, DIY Investor explains the basics and benefits of the tax efficient wrapper, and why it could be twice as easy for the next generation of investors to join the ISA millionaires club.

When the mercury starts to rise and the parks and gardens burst into life the DIY investor knows that its ‘ISA season’.

However tempting it may be to dismiss the customary late flurry in the run up to the end of the tax year as a  marketing exercise by platforms and product issuers, the ISA has a vital role to play in any long-term investment strategy and once the calendar shows 6th April, that 2021-22 allowance will be gone forever.

Once the preserve of an elite group of stock pickers, the ‘ISA Millionaires Club’ has been expanding of late – due in part to above-inflation increases in subscription levels; investors can shelter £20,000 in the current tax year with total flexibility around the combination of cash and stocks and shares.

‘an investor making the maximum subscription each year and achieving a 7% return after fees could achieve a pot of £1 million within 22 years’

But it is not only subscription levels that account; having existed for almost 23 years, ISA asset growth points to the benefits of long-term investing.

A little number crunching points to the opportunity – wealth managers Brewin Dolphin calculates that an investor making the maximum subscription each year and achieving a 7% return after fees could achieve a pot of £1 million within 21 years.

The benefits of compounding and tax efficient saving can deliver life-changing wealth to those who seize the opportunity; the first step is to use this year’s allowance now, because otherwise you’ll lose it.

What is an ISA?

An Individual Savings Account (ISA), or indeed a ‘NISA’, a ‘new’ ISA, is an investment wrapper whose key attraction is that returns generated within it are free of tax.

DIY investors can choose either a cash or a stocks and shares ISA and benefit from higher rates of return and tax benefits than savings accounts.

With interest rates set to remain at record low levels there is precious little to be earned on savings accounts and any return less than the prevailing rate of inflation means that your capital is being eroded.

Cash ISA

A cash ISA is simply a savings product that pays returns with no deduction of tax – a saving of 20% to standard rate taxpayers and 40% to those that pay at the higher level.

£280 billion is currently invested in cash ISAs but rates have been declining, with the best instant access account currently available paying just 0.8%, meaning that savers are losing the ‘real’ value of their money because annual inflation as measured by the Consumer Price Index including housing – CPIH – is running at 5.5% in the year to February 2022.

The flexible ISA allows investors to convert from stocks and shares to cash products and to withdraw and replace money during a tax year without loss of benefit.

From April 6th, 2016, new rules came come into play which allowed basic-rate taxpayers to earn £1,000 of savings interest without the taxman taking a slice, and higher-rate taxpayers will be able to earn £500 – a personal savings allowance (PSA).

Stocks and Shares ISA

Stocks and shares ISAs currently allow investors to subscribe up to the full £20,000 annual allowance and invest in a wide range of stocks, bonds, funds, investment trusts and ETFs.  Profits are not liable for capital gains tax and no additional income tax is due on dividends or distributions.

The 2014 budget allowed peer-to-peer loans to be held in an ISA as well as bonds with less than five years to maturity.

Joining the ISA millionaires club

Hargreaves Lansdown, the UK’s largest DIY investing platform, has 973 investors with ISAs worth more than £1 million – a year-on-year increase of 70%. Those in their late 60s and early 70s most likely to be ISA millionaires, with an average age of 72; two thirds are men.

interactive investor has 983 ISA millionaires with some still in their 20s and 30s.

These investors had to achieve an average 14% annual growth to achieve this milestone as contributions were limited to £7,000 for the nine years following the launch of ISAs in 1999; however increasing contributions since then have made it easier than ever to join them.

Currently with a maximum annual allowance of £20,000, those achieving 7% growth can achieve £1 million in just 21 years, meaning ISA millionaires of the future will be more plentiful, and younger.

What do ISA millionaires invest in?

Although to some, achieving a £1m pot in 21 years may seem to be acting in indecent haste, ISA millionaires tend to adopt a ‘get rich slow’ approach, looking for good quality investments and taking maximum advantage of compound interest.

ISA millionaires are really the epitome of DIY investors – making a fortune from diligent investing; not taking enormous risks, just consistently investing as much as possible of their annual allowance in a diverse and balanced portfolio, year in year out.

Women tend to invest in collectives, particularly investment trusts, whereas men are more inclined towards individual equities.

According to interactive investor, the top ten shares held by this group are dominated by blue chip companies which, certainly until the pandemic, were reliable sources of good dividends.

Top 10 shares


  • Alliance Trust
  • Scottish Mortgage investment trust
  • Shell
  • Glaxosmithkline
  • Lloyds
  • National Grid
  • BP
  • Vodafone Group
  • Aviva
  • Witan investment trust

ISA millionaires are likely to have eschewed the pursuit of earning quick bucks from companies on the Covid rebound in favour of long-term, quality investments from companies that are unlikely to have been too badly affected.

When it comes to funds and other collective investments, ISA millionaires spread risk across world-class companies; the appearance of technology and health funds shows that investors have confidence in these sectors to ‘out-perform’ the market.

Top 10 funds Hargreaves Lansdown


  • Artemis Income
  • Fidelity Global Special Situations
  • Fidelity Special Situations
  • Fundsmith Equity
  • Marlborough UK Micro-Cap Growth
  • Jupiter European
  • LF Lindsell Train UK Equity
  • Lindsell Train Global Equity
  • Rathbone Global Opportunities
  • Stewart Inv Asia Pacific Leaders


Top 10 equities Hargreaves Lansdown


  • AstraZeneca
  • Aviva
  • BP
  • GlaxoSmithKline
  • Legal & General Group
  • Lloyds Banking Group
  • National Grid
  • Rio Tinto
  • Royal Dutch Shell
  • Unilever

DIY platform AJ Bell reports that its ISA millionaires have an average of 28 investments each, with some managing to hold the line whilst still awaiting final settlement from the Woodford Equity Income Fund; testament to maintaining a well diversified portfolio.

Interactive Investor reports that 46% of the portfolios of its ISA millionaires was in investment trusts, possibly because they tend to out-perform funds in the long term.

Twenty-eight individual investment companies would have made investors millionaires if they had invested their full allowance in the same firm each year, according to industry body the Association of Investment Companies.

Investing the full total of £246,560 from 1999 to 2020 and reinvesting the dividends into Scottish Mortgage would have generated a tax-free pot of £2,541,100 by January 31, 2021 – ten times the original investment

Is an ISA for You?

Notwithstanding the pressure from all sides to participate in what always seems to be described as a ‘bumper’ ISA season, many DIY investors will recognise the value of a tax efficient investment vehicle.

Understand your attitude to risk, set your financial objectives and construct your long term investment strategy.

‘Understand your attitude to risk, set your financial objectives and construct your long term investment strategy.’

Whilst some may need a nudge, ISA season should not really sneak up on you; the end of the tax year should just be another milestone on the way to the achievement of your investment goals.

Some may consider that easy access to their investments makes an ISA a more portable and attractive alternative to a pension in their retirement planning; others may decide that the creation of sub-pots within a tax-efficient account may be the best way to give their children a financial head start in life.

It is worth shopping around to ensure that the ISA provider you choose delivers the right technical capability and range of investment options that allow you to implement your strategy and at a cost that you find acceptable.

However, if you do make the wrong choice, ISAs are reasonably simple to transfer with no loss of tax benefit – you have instant access to your funds should you require it.

If you are not confident about picking individual investments you may to choose to effectively cede asset allocation decisions to the experts by purchasing a managed or multi-manager fund, by adopting a model portfolio, purchasing a low-cost index tracker or by selecting one of the pre-selected portfolios of funds that are on offer.

What you should try to avoid is missing this year’s deadline and then thinking ‘I wish……

ISA Investing – Some Things to Consider

Take it to the max – combining your allowance with that of your spouse will allow you to jointly shelter £40,000 in the current tax year.

If you don’t have time to monitor the performance of individual stocks, consider tapping into the expertise of the professionals by buying funds or investment trusts.

Allowed within ISA wrappers since August 2013 AIM stocks can add a little zest to your portfolio but it may not be the place for the faint hearted – consider an AIM tracker or small-cap fund with exposure to AIM stocks.

Since April 2017 the Lifetime ISA (LISA) has provided a flexible way to either save up to £4,000 a year towards the deposit on a property or as a retirement savings vehicle – attracting a 25% bonus in either instance.

Available since April 2016, the Innovative Finance ISA (IFISA) allows P2P investments to be sheltered.

Tax Savings

1) No capital gains tax is paid on profits from share price increases, saving you between 18% and 28% according to your tax liability.

2) Tax on interest earned from bonds can be reclaimed from HM Revenue & Customs each year.

3) Income earned, or dividends received from shares or funds are taxed at 10%, saving a basic rate taxpayer 10%.

See much more ISA content here

One response to “ISA Investing –Join ‘the Club’”

  1. […] Albeit that investing £20,000 a year would be something of a stretch for those on the national average wage of £27,531, it makes for good headlines and provides a benchmark for the savvy investor – ‘ISA Investing – Join the Club’. […]

Leave a Reply