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Could you become an ISA millionaire?

Click on image to see the PDF article by Jeff Prestridge, Mail on Sunday

A person holds a tablet displaying the front page of a digital newspaper titled The Mail on Sunday. The tablet is viewed from above on a light-colored surface. The newspaper page includes multiple columns of text, a central photo of an older person, and a large headline reading, “I can become an instant millionaire by Jan. 7, who’s done it twice.” The person holding the tablet is wearing a light blue shirt and a wristwatch.

This article was originally published in ‘The mail on Sunday’ 26 July 2026. This is an independent article and is not a paid sponsorship. This article is intended to be of general interest only and should not be construed as investment advice. It does not constitute legal or tax advice nor is it an offer for shares or invitation to apply for shares of Templeton Emerging Markets Investment Trust PLC (“TEMIT”). TEMIT is an alternative investment fund (“AIF”) for the purposes of the UK AIFM Directive and is incorporated as a public limited Company in Scotland. Opinions expressed are the authors at publication date and they are subject to change without prior notice.

Put your own numbers to the test

Use the TEMIT Investment Growth Calculator below to explore how different starting amounts, monthly investments and time periods could have built towards £1 million. See what it could have taken to:

  • Reach £1 million in the shortest time
  • Turn £100 a month into £1 million
  • Combine a lump sum with monthly investing

Investment Growth Calculator

Find out what your TEMIT investment could be worth today

TEMIT launched in June 1989. Enter your own figures and date range to explore different outcomes.

Selected Month June 1989
Selected Month February 2026

Portfolio value over time

Line chart with 2 lines.
The chart has 1 X axis displaying Time. Data ranges from 1989-07-31 00:00:00 to 2026-02-28 00:00:00.
The chart has 1 Y axis displaying values. Data ranges from 19220.286983 to 1459214.244755.
End of interactive chart.

The value of your investment would be:

£1,459,214

Past performance is not an indicator of future returns. Figures shown are for illustrative purpose only.

The value of your investments may go down as well as up and you could get back less than invested. Month end values used.

Initial sum invested

£20,000

Total invested

£20,000

How to Invest with Us

Shares in TEMIT qualify as an investment which can be held through an ISA. TEMIT is available through a stocks and shares ISA from a number of different companies. Your financial adviser will be able to give you full details of the options available to you.