FIRE — Financial Independence, Retire Early — is about accumulating enough invested wealth to cover your living expenses from investment returns, giving you the option to stop working whenever you choose.
- The different flavours
- The savings rate is everything
- Is FIRE right for you?
The different flavours
Lean FIRE involves independence on a minimal budget — often £15,000-20,000 per year. Fat FIRE provides a more comfortable lifestyle — £40,000-60,000 per year. Barista FIRE involves partial independence with some part-time work to cover the remainder.
The savings rate is everything
At a 50% savings rate, financial independence takes roughly 17 years. At 70%, around 8-9 years. Small increases in savings rate produce large reductions in time to independence.
UK-specific considerations
The pension access gap is a significant constraint. ISAs are the vehicle of choice — tax-free growth and withdrawals, accessible at any age.
Is FIRE right for you?
FIRE is about having choices, not hating your job. Financial independence means you can leave an unhappy job, take a career risk, or simply never worry about money again. Even if early retirement is not your goal, the underlying principles produce dramatically better outcomes than the average approach.
Bottom line
FIRE is a spectrum. High savings rates, low-cost index investing, and tax efficiency produce dramatically better financial outcomes whether or not early retirement is the explicit goal.