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Coast FIRE Calculator

Last updated: April 2026

Coast FIRE inputs

Coast FIRE number

£206,664

Your current savings

£100,000

FIRE number at retirement

£750,000

Real return

4.39%

48.4% complete

You need £106,664 more to reach Coast FIRE.

If you save £500/month, you will reach Coast FIRE in 8.5 years at age 43.5.

Once you reach Coast FIRE

Stop making investment contributions
Only earn enough to cover day-to-day expenses
Your portfolio does the rest
Work optional jobs, part-time, or passion projects

What is Coast FIRE?

Coast FIRE is the point where your existing investments are large enough to grow to your full FIRE number by retirement age without any further contributions. You are not fully financially independent yet, but the long-term investing work is already done.

Coast FIRE vs Barista FIRE

Coast FIRE means you can stop investing and simply cover your living costs while your portfolio compounds. Barista FIRE usually means you have enough invested to reduce work, but still need part-time income to cover some expenses or benefits before full retirement.

How to reach Coast FIRE faster

UK investors can accelerate Coast FIRE by using stocks and shares ISAs for flexible tax-free access and SIPPs or workplace pensions for tax relief. Keeping fees low, increasing contributions early, and avoiding lifestyle inflation all make the coast point arrive sooner.

What does this mean?

This calculator is designed to help you understand the likely number before you make a decision or start an application.

Your result should be checked against official UK guidance, especially if your circumstances include dependants, exemptions, prior leave, or a complex immigration history.

Treat the figure as a planning tool rather than legal advice. Where the answer affects an application deadline or major payment, speak to an authorised adviser.

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