ISA Calculator
How to Use
Enter your annual ISA contribution, investment period, and expected annual return to project your ISA value at the end of the term. The annual ISA allowance is £20,000 per tax year — any growth and withdrawals are completely free of UK tax. A Stocks and Shares ISA typically achieves higher long-term returns than a Cash ISA, though with more volatility. Use this alongside the retirement savings calculator to plan your long-term wealth.
Frequently Asked Questions
❓ Frequently Asked Questions
🔗 Related Calculators
Related Guides
Index Fund Investing Guide: Simple, Low-Cost Wealth Building
Learn what index funds are, how they work, why they beat most active funds, and the best UK options for building long-term wealth simply and cheaply.
9 min readStock Market Beginners Guide: How to Start Investing
A complete beginner's guide to stock market investing. Learn how to open an account, choose investments, understand risk, and start building wealth.
9 min readEmergency Fund Guide: How Much, Where to Keep It
Build a financial safety net with our emergency fund guide. Learn how much to save, where to keep it, and how to build one fast even on a tight budget.
7 min readInheritance Tax Guide: Thresholds, Rates & Planning
Learn about UK Inheritance Tax thresholds, the nil-rate band, residence nil-rate band, and effective estate planning strategies to protect your family's wealth.
10 min read