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Fynla vs
Spreadsheets

Spreadsheets are free and flexible. Here is what you gain by upgrading to a dedicated planning tool.

We Get It — Spreadsheets Are Great

Many serious financial planners start with a spreadsheet. They are free, endlessly customisable, and you have full control. But as your finances grow more complex, spreadsheets start to show their limits — and their risks.

Where spreadsheets excel

  • Free: no subscription, no commitment.
  • Fully customisable: you can model anything, in any way you want.
  • You own it: your data, your formulae, your format.
  • Familiar: most people already know how to use Excel or Google Sheets.

What you gain with Fynla

  • No formula errors: calculations are tested and validated. A single wrong cell reference in a spreadsheet can silently break everything.
  • Tax rules built in: income tax bands, National Insurance, ISA allowances, pension annual allowance, and Capital Gains Tax are always current.
  • Monte Carlo simulations: run thousands of investment scenarios to understand the range of possible outcomes. Not practical in a spreadsheet.
  • Inheritance Tax calculations: nil rate band, residence nil rate band, taper rules, spouse transfers, and the 2027 pension changes — all automated.
  • Protection gap analysis: calculate your life insurance, critical illness, and income protection needs based on your actual circumstances.
  • Pension allowance tracking: annual allowance, carry forward, tapered allowance, and Money Purchase Annual Allowance — tracked automatically.

The hidden cost of spreadsheets

  • Time: building and maintaining a comprehensive financial model takes hours every year.
  • Tax changes: you need to update rates and thresholds manually after each Budget.
  • Blind spots: spreadsheets only calculate what you think to include. Fynla highlights gaps you might miss.
  • Sharing: difficult to share securely or access from your phone.

Ditch the spreadsheet headaches

Professional-grade financial planning — no formulas required.