About this app
UK FIRE Calculator helps you plan your path to Financial Independence, Retire Early (FIRE) with UK-specific accounts and tax rules — free, private, and no sign-up. Everything runs on your device. No account, no data stored. MODEL YOUR FULL PORTFOLIO • Stocks & Shares ISA, Lifetime ISA (LISA), SIPP/Pension, and GIA • Employer and employee pension contributions with salary sacrifice • DC & final-salary (DB) Pensions • State Pension income from your chosen age • Couples modelling • Rental income • Monte Carlo Simulation UK TAX-ACCURATE (2026/27) • 2026/27 income tax rates and personal allowance • National Insurance and Capital Gains Tax on GIA withdrawals • LISA 25% government bonus included automatically UNDERSTAND YOUR RETIREMENT • FIRE number based on your spending and safe withdrawal rate • Portfolio projection to age 100 • Tax-efficient withdrawal order in retirement • Bridge period planning before pension access age (57 from 2028) VISUALISE YOUR PROGRESS • Portfolio growth chart by account type • Retirement income breakdown by source • Key milestones: FIRE age, £1M, State Pension, account depletion LEARN AS YOU PLAN • 50+ in-depth UK FIRE guides — the 4% rule, ISA vs SIPP, salary sacrifice, the State Pension, and "can I retire at 55/60?" scenarios Free, private, no sign-up. Find your FIRE number today. This calculator is for educational and planning purposes only and does not constitute financial advice. Always consult a qualified financial adviser before making significant financial decisions.
Latest release
What’s New
Fix bug where shared values from the website don't populate correctly in the app
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 13, 2026 · 5:02 PM Free
Screenshots
