Published Jun 27, 2026 4 Min Read

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Introduction

The FIRE movement, short for Financial Independence, Retire Early, focuses on building enough wealth to support your lifestyle without depending on active income. Coast FIRE, Lean FIRE, and Fat FIRE are different versions of this approach, each suited to different spending needs and retirement goals.

  • Coast FIRE: Build a large investment corpus early and let it grow without major future contributions.
  • Lean FIRE: Retire with a smaller corpus and maintain a simple, low-cost lifestyle.
  • Fat FIRE: Build a larger corpus to support a more comfortable lifestyle after retirement.
  • FIRE Number: The total retirement corpus needed to cover your annual expenses through investment income.
  • Investment Planning: Regular SIPs and long-term investing can help you move closer to financial independence.
  • Risk Assessment: Consider the SEBI-mandated riskometer levels ranging from Low to Very High when selecting investment options.

You can start building your FIRE retirement plan through the Bajaj Broking website, explore 4,000+ mutual fund schemes, complete KYC online, and begin SIP investments from Rs. 100 per month.

What is Coast FIRE?

Coast FIRE is a type of FIRE where you invest aggressively in your early years until your retirement corpus reaches a level that can grow on its own through compounding.

Once you reach that target, you may no longer need large retirement contributions. Your investments continue growing while you focus on covering current living expenses.

Coast FIRE may suit you if:

  • You start investing early.
  • You want more flexibility in your career later.
  • You are comfortable waiting for long-term compounding to work.

What is Lean FIRE?

Lean FIRE focuses on retiring with a smaller corpus and maintaining a modest lifestyle.

This approach usually requires lower annual expenses and disciplined spending habits. Since the retirement corpus is smaller, you may need to monitor expenses more carefully.

FeatureLean FIRE
LifestyleSimple and cost-conscious
Retirement corpusLower
Spending flexibilityLimited
Suitable forPeople comfortable with minimal expenses

Lean FIRE can help you achieve financial independence sooner, but it may leave less room for unexpected costs.

What is Fat FIRE?

Fat FIRE aims for financial independence while maintaining a higher standard of living.

People pursuing Fat FIRE usually target a larger retirement corpus to support travel, hobbies, healthcare, and discretionary spending after retirement.

FeatureFat FIRE
LifestyleComfortable and flexible
Retirement corpusHigher
Spending flexibilityHigh
Suitable forPeople seeking lifestyle freedom

Fat FIRE generally requires higher income, larger savings rates, and a longer wealth-building period.

Coast FIRE vs Lean FIRE vs Fat FIRE: Key differences

The three types of FIRE differ mainly in the size of the retirement corpus and the lifestyle you want after retirement.

FactorCoast FIRELean FIREFat FIRE
Main goalLet investments growRetire with lower expensesRetire with higher expenses
Corpus requirementModerateLowerHigher
Lifestyle after retirementBalancedMinimalistComfortable
Savings requirementHigh initiallyModerateHigh
FlexibilityModerateLowerHigher

The right choice depends on your income, spending habits, family responsibilities, and long-term goals.

How do you calculate your FIRE number?

Your FIRE number is the retirement corpus required to support your expenses without relying on active income.

  1. Calculate your annual expenses by adding housing, food, healthcare, travel, insurance, and other regular costs.
  2. Estimate the annual expenses you expect during retirement after adjusting for lifestyle changes.
  3. Multiply the annual expense figure by your chosen withdrawal multiple based on your retirement strategy.
  4. Review your investment returns, inflation assumptions, and retirement timeline.
  5. Track your progress using investment dashboards and planning tools available on the Bajaj Broking website.

How do you plan your FIRE journey?

A successful FIRE retirement plan usually combines disciplined saving, long-term investing, and regular reviews.

  1. Set a target retirement age and estimate the corpus required for your desired lifestyle.
  2. Create a monthly budget and identify areas where you can increase your savings rate.
  3. Invest regularly through SIPs or lumpsum investments based on your financial situation.
  4. Complete KYC requirements before investing, as mandated by SEBI regulations.
  5. Diversify investments across suitable asset classes and risk levels.
  6. Monitor your portfolio through Dashboard, Portfolio, Orders, and MF Profile tools on the Bajaj Broking website.

Conclusion

The FIRE movement India has gained popularity among people who want greater financial freedom and the option to retire early. Coast FIRE, Lean FIRE, and Fat FIRE offer different paths toward financial independence.

The best option depends on your income, expenses, retirement goals, and lifestyle preferences. By calculating your FIRE number and investing consistently, you can move closer to achieving long-term financial independence.

Frequently asked questions

What is the FIRE movement?

The FIRE movement stands for Financial Independence, Retire Early. It focuses on saving and investing aggressively so you can build a corpus large enough to cover future expenses. Different approaches, including coast FIRE, lean FIRE, and fat FIRE, help you choose a retirement strategy based on your desired lifestyle. The Bajaj Broking website provides investment tools that can support your FIRE retirement plan.

How does FIRE differ from Micro-Retirement?

FIRE aims to achieve long-term financial independence through investing and wealth creation. Micro-retirement involves taking shorter breaks from work throughout your career rather than retiring permanently. FIRE focuses on building a sustainable corpus, while micro-retirement focuses on temporary lifestyle flexibility.

How do I calculate my FIRE number?

You can calculate your FIRE number by estimating your annual retirement expenses and determining the corpus required to support those expenses over the long term. Factors such as inflation, expected returns, healthcare costs, and lifestyle goals should be considered when estimating the required amount.

How easy is it to follow the FIRE Movement?

The difficulty depends on your income, savings rate, expenses, and investment discipline. Many people find it challenging because it often requires higher savings and long-term commitment. The Bajaj Broking website can help you track investments, explore 4,000+ mutual fund schemes, and start SIP investments from Rs. 100 per month as part of your financial planning.

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The information contained in this article is for general informational purposes only and does not constitute any financial advice. The content herein has been prepared by BFL on the basis of publicly available information, internal sources and other third-party sources believed to be reliable. However, BFL cannot guarantee the accuracy of such information, assure its completeness, or warrant such information will not be changed.

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