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Inflation-Aware Retirement Planner

Retirement Corpus Calculator 2026

Today's monthly expense is inflated to the retirement date. That amount times 12 is then discounted as a constant annual payment for the retirement years. Current savings compound monthly until retirement, and the gap is turned into a flat monthly deposit.

Disclaimer: This is a planning estimate, not a promise. Lifestyle, healthcare, taxes, and market returns can change the number significantly.
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Required Retirement Corpus

₹3,09,74,615.46
Monthly Saving Needed₹13,141.96
Future Expense / Month₹1,92,428.13

Retirement planning is a spending problem first and an investing problem second. Start with the monthly expense you want in the future, inflate it forward, and then figure out how much capital you need to support that lifestyle.

How the retirement corpus is built

Default at 6% inflation

  • ₹60,000 a month for 20 years becomes about ₹1,92,428 a month.
  • That is about ₹23,09,138 a year, and it stays at that level during retirement.

Corpus and the gap

  • 25 years of that annual expense, discounted at 5.5%, is a corpus of about ₹3.10 crore.
  • ₹25,00,000 compounded monthly at 10.5% for 20 years is about ₹2.02 crore. The gap is about ₹1.07 crore, which needs about ₹13,142 a month.

Financial & Tax Advice Disclaimer

This tool is provided strictly for educational, planning, and illustrative purposes. All figures, estimates, compounding formulas, and tax calculations are based on user input parameters and current mathematical models.

No Performance Guarantee & Liability: Output calculations do not guarantee future returns, exact bank interest payouts, market gains, or legal tax liability. Toolioz and its maintainers accept no legal or financial liability for investment losses, loan commitments, or tax penalties resulting from the use of this calculator.

Always consult a certified financial planner, registered investment advisor, or Chartered Accountant (CA) before taking financial action.

Retirement defaults

Pre-retirement growth is monthly. The retirement corpus is an annual annuity.

Before retirement

  • -Current savings use monthly compounding at the pre-retirement return. The default is 10.5%.
  • -The monthly deposit uses the same start-of-month formula as the savings-goal calculator.

During retirement

  • -The annual expense stays flat. It is not inflated again each retirement year.
  • -The discount rate is the post-retirement return, compounded once a year. The default is 5.5%.

Not applied

  • -A 4% withdrawal rule is not used.
  • -Tax and healthcare costs are not added on top of the expense.
  • -A mutual-fund systematic withdrawal plan is not modeled.
  • -Amounts are formatted in rupees.

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Frequently Asked Questions

No. The corpus is the present value of a constant annual expense for the retirement years, discounted at the post-retirement return. The default is 25 years at 5.5% a year.

₹60,000 a month for 20 years at 6% becomes about ₹1,92,428 a month, about 3.21 times the starting expense. ₹50,000 on the same path becomes about ₹1,60,357. Spending is not inflated again during retirement.

No. Retirement spending is one constant annual amount. Monthly fund units and a systematic withdrawal plan are not modeled.

Publisher notes · reviewed 10 September 2026

Retirement corpus is a stack of assumptions

The corpus tool estimates how large a pot you need so that withdrawals can last a stated period after inflation. Small changes in withdrawal rate, inflation, and years to retirement dominate the result. Treat the output as a range, not a target you must hit to the rupee.

What the model is doing

Typical inputs are current expenses, years to retirement, inflation, expected post-retirement return, and years in retirement. Expenses are inflated to retirement, then a present-value of an annuity (or a capitalised multiple) is applied so that withdrawals keep pace with inflation. If the on-page formula uses a different arrangement, the labelled equation wins.

A 4% initial withdrawal idea from other markets is not an Indian statutory rule. Sequence-of-returns risk, medical inflation, and lack of a full social-security wage replacement make a single percentage unsafe as a promise. Run a higher expense and a lower return as a stress case.

Worked examples

  • Inflating current spend

    ₹80,000 monthly spend at 6% for 20 years until retirement is 80000 × (1.06)^20 ≈ ₹2.57 lakh monthly in then-rupees, before you even size the corpus.

Limits of this page

  • No EPFO, NPS annuity, or rental yield is auto-imported.
  • Longevity past the typed years is unfunded in the model.

Sources