ISA Millionaire Calculator

Calculate how long it will take to reach £1,000,000 in your ISA based on your contributions and investment returns.

Disclaimer: This calculator is for illustrative purposes only and does not constitute financial advice. Actual investment returns may vary. Always consult with a financial advisor before making investment decisions.

Years to £1 Million

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Nominal Value

Years to £1 Million in Today's Value

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Inflation-Adjusted

Understanding the ISA Millionaire Calculator

This calculator helps you determine how long it will take to reach £1,000,000 in your ISA based on your annual contributions and expected investment returns.

Input Parameters:

  • Annual ISA Contribution: The amount you contribute to your ISA each year (maximum allowance currently £20,000).
  • Annual Nominal Return: The expected annual return on your investments before adjusting for inflation.
  • Annual Inflation Rate: The expected rate at which the purchasing power of money decreases over time.

Results Explained:

  • Years to £1 Million (Nominal Value): The number of years it will take for your ISA to reach £1,000,000 in nominal terms.
  • Years to £1 Million in Today's Value: The number of years it will take for your ISA to reach the equivalent of £1,000,000 in today's purchasing power, adjusted for inflation.

The chart displays both the nominal value of your ISA and its inflation-adjusted real value over time, allowing you to visualize your progress towards becoming an ISA millionaire.