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Inflation-Adjusted Cashflow

Step-Up SWP Calculator (Inflation-Adjusted Systematic Withdrawal)

Model inflation-beating retirement cashflows with annual percentage step-ups. Calculate corpus longevity, year-by-year balance depletion, and safe starting withdrawals.

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Adjust Parameters

₹
₹
1,00,0001,00,00,00,000

Total starting lump-sum invested in your SWP portfolio.

₹
₹
5,00050,00,000

Monthly cash transfer needed during your first year of retirement.

%
%
015

Increase monthly payout each year to preserve purchasing power against inflation.

%
%
418

Conservative hybrid funds typically yield 8.5%–9.5% p.a.

years
years
545

Planned duration of systematic withdrawals.

Total Cashflow Withdrawn
₹2,96,26,836

Final Balance Remaining: ₹2,03,820 (Solvent)

Starting Monthly Payout
₹45,000
Year 1 (₹5,40,000/yr)
Year 25 Monthly Payout
₹1,82,202
Stepped up by 6% annually
Corpus Longevity
25 Full Years
100% Sustainable
Max Safe Starting Payout
₹45,120
Lasts all 25 years with 6% step-up

Your ₹1.00 Cr corpus successfully sustains all 25 years with an annual 6% inflation step-up! At the end of 25 years, you still retain an estimated balance of ₹2,03,820.

Year-by-Year Cashflow Schedule

YearOpening BalanceMonthly PayoutAnnual PayoutClosing Balance
Year 1₹1,00,00,000₹45,000₹5,40,000₹1,02,85,447
Year 2₹1,02,85,447₹47,700₹5,72,400₹1,05,61,285
Year 3₹1,05,61,285₹50,562₹6,06,744₹1,08,24,662
Year 4₹1,08,24,662₹53,596₹6,43,149₹1,10,72,367
Year 5₹1,10,72,367₹56,811₹6,81,738₹1,13,00,784
Year 6₹1,13,00,784₹60,220₹7,22,642₹1,15,05,852
Year 7₹1,15,05,852₹63,833₹7,66,000₹1,16,83,020
Year 8₹1,16,83,020₹67,663₹8,11,960₹1,18,27,199
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Step-Up SWP & Compounding Depletion Formulas

Transparent mathematical formulas and assumptions used across our financial engines.

Mathematical Formula
Monthly Payout (Year y) = Initial Payout × (1 + StepUp)^(y-1)

Variables & Legend

W_0
First year monthly cash withdrawal
g
Annual withdrawal growth rate to match inflation
r
Expected annual compounding return on remaining balance
T
Total planned retirement duration in years

Step-by-Step Calculation

  1. Annual Payout Escalation: Monthly Payout_y = Monthly Payout_1 × (1 + g)^(y-1)

    Every 12 months, the monthly withdrawal steps up by your inflation target percentage.

  2. Month-by-Month Compounding & Depletion: Balance_m = (Balance_{m-1} - Withdrawal_m) × (1 + r/12)

    Withdrawals are disbursed monthly, and the remaining capital continues compounding at the portfolio return rate.

  3. Depletion & Longevity Verification: Check if Balance_m ≤ 0 at any month m within Tenure

    Tracks the exact year and month when capital exhausts or confirms portfolio solvency.

Frequently Asked Questions

A flat SWP of ₹50,000 might cover your lifestyle today, but with 6% annual inflation, ₹50,000 will have the purchasing power of only ₹27,900 in 10 years. A step-up SWP escalates your payout annually so your real living standard remains unchanged throughout retirement.

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