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Lean FIRE

Find your FI number targeting a leaner post-FI lifestyle.

ⓘ How this works

Lean FIRE is a version of "Financial Independence, Retire Early" where you plan to live on a smaller, leaner budget after retiring — spending less than you do today — which means you need a smaller total savings target to become financially independent. This calculator estimates that reduced FI number and how many years it might take to reach it.

Your inputs

Monthly expenses
₹
Current wealth
₹
Monthly investment
₹
Annual increase
%
Expected return
%
Withdrawal rate
%
Inflation
%
Lean spending factor
%

Lean financial independence

Lean FI target (today’s money)
₹1.05 Cr

The corpus you'd need today so that withdrawing your LEAN monthly expenses (the lean factor × today's spend), at the withdrawal rate you set, never runs it down.

Estimated corpus at FI date
₹1.33 Cr

The same target in 4-years-from-now rupees, after 6% yearly inflation. This is the number your investments actually have to reach.

That's 30% less than the ₹1.5 Cr you'd need for standard FIRE — because you're planning to live on a smaller budget after retiring, not because your investments grow any differently.
Still need to save (today's money)₹55L
Estimated years to FI4
Investing ₹3,800 more/month could get you there 1 month sooner.
How these numbers are built
FI target = ₹35,000/month × 12 ÷ 4% initial withdrawal rate.
At 6% inflation, ₹35,000/month today is expected to cost about ₹44,187/month when you reach FI.
Expected return 12% is nominal. After 6% inflation that is roughly 5.7% real growth in purchasing power. These are assumptions, not guaranteed returns.
Years to FI under different return assumptions:
8% → 5 yrs10% → 4.4 yrs12% → 4 yrs (yours)

Risk note · Retirement projections compound small assumption changes over decades: a 1% difference in return or inflation can move the outcome by lakhs or crores. Markets are volatile, inflation is uncertain, and tax rules change. Treat these numbers as a planning range, revisit them yearly, and keep a safety margin.

Disclaimer · finkit is an educational tool, not financial, tax or legal advice. Every result is a projection from the numbers you entered and the assumptions stated on the page — it is not a forecast, a quote, or an offer. Check decisions with a SEBI-registered adviser, your lender, or a tax professional.

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