SWP Calculator
Plan systematic withdrawals from a mutual fund or investment corpus. Estimate monthly income, tax, inflation impact, corpus life and year-wise balance.
Last Updated: July 23, 2026Calculate Your Systematic Withdrawal Plan
Use realistic returns after checking the scheme category, risk, costs and exit-load rules. Results are projections, not promised income.
Tax is an estimate. Each SWP instalment is a redemption and only its gain portion is modeled as taxable.
| Plan year | Opening corpus | Gross withdrawn | Tax + load | Net cash | Investment growth | Closing corpus | Real corpus |
|---|
| Return scenario | Net annual return | Ending corpus | Corpus status |
|---|
The model applies one smooth monthly return. Real mutual-fund NAVs rise and fall, so the order of returns can change corpus life even when the long-term average return is the same.
What Is an SWP Calculator?
An SWP calculator estimates how a Systematic Withdrawal Plan may affect an invested corpus. You choose a starting balance, scheduled withdrawal, expected return and duration. The tool applies investment growth and redemptions month by month, then reports total income, remaining corpus and whether the money lasts for the selected period.
Under an SWP, an investor gives advance instructions to redeem a fixed amount or a fixed number of units at regular intervals. The redemption value is paid to the registered bank account. The AMFI investor-awareness material describes SWP as regular withdrawal of a fixed amount from a mutual-fund investment. Frequencies, minimum amounts, dates, exit loads and processing rules differ by scheme and asset-management company.
An SWP is not interest. It sells units. A withdrawal includes a return of your invested cost and, when the NAV is above the relevant acquisition cost, a capital-gain component. Repeated withdrawals reduce the units held. If withdrawals and market losses exceed portfolio growth, the corpus may decline or finish early.
How to Use This SWP Calculator
- Enter the current corpus from which withdrawals will start.
- Add the gross monthly withdrawal. This is the amount redeemed before the optional tax and exit-load estimates.
- Enter an expected annual return before the separate cost input. If your rate already reflects all costs, set annual cost to 0%.
- Select the withdrawal period and annual increase. Use 0% for a fixed nominal SWP or a positive rate for rising income.
- Add inflation, any delay before the first payment and beginning or end-of-month timing.
- Open the tax section when you want a simplified tax estimate. Choose the fund treatment, cost basis, other first-year Section 112A gain, slab rate and exit load.
- Review the corpus status, net cash, sustainable withdrawal, annual schedule and return scenarios together.
The sustainable starting withdrawal is the highest modeled amount that uses the corpus by the selected end date without running out earlier. The corpus-preserving amount aims to leave the original nominal corpus at the end. Neither figure is a safe-withdrawal guarantee because future returns are uncertain.
SWP Calculation Formula
For a fixed withdrawal at the end of each month, the simplified recurring balance is:
Closing balance = Opening balance × (1 + monthly return) − monthly withdrawal
Effective monthly return = (1 + net annual return)1/12 − 1
The calculator repeats this process for every month. Beginning-of-month timing reverses the first step: it subtracts the withdrawal before applying that month's return.
Net annual return equals the entered return less the entered annual cost. This is a planning simplification. A mutual fund's published NAV performance normally already reflects the scheme's expense ratio. Do not subtract the same cost twice.
Worked Example
Suppose you begin with ₹50 lakh, withdraw ₹20,000 per month, increase the payment by 6% every year and plan for 20 years. The default model assumes an 8% return before a 0.5% annual cost and 6% inflation. It processes 240 monthly periods, tracks the annual rise in withdrawals and compares the result with returns two percentage points lower and higher.
The live result above also estimates capital-gain tax when the equity LTCG option is selected. It begins with the entered ₹40 lakh cost basis and assigns part of each redemption to cost and part to gain in proportion to the modeled portfolio. Actual mutual-fund tax accounting uses transaction-level units and applicable holding periods, so statements from the fund or registrar remain the correct source for filing.
Fixed SWP vs Inflation-Linked SWP
| Feature | Fixed withdrawal | Inflation-linked withdrawal |
|---|---|---|
| Payment pattern | Same nominal amount | Rises by the selected annual rate |
| Early cash need | Lower than a stepped plan | Starts at the entered amount |
| Purchasing power | Usually declines with inflation | Better protected when step-up matches inflation |
| Corpus pressure | Lower in later years | Higher as withdrawals increase |
| Planning use | Temporary or level expenses | Long retirement-income planning |
A ₹40,000 fixed payment still equals ₹40,000 after 15 years, but its buying power is lower. At 6% inflation, costs roughly double in about 12 years. A 6% annual increase maintains the intended nominal spending path more closely, but it requires a larger corpus or a lower initial withdrawal.
How SWP Tax Is Estimated in India
Every SWP instalment is a redemption. Tax generally applies to the capital-gain portion, not to the entire amount received. The exact gain depends on the units redeemed, their acquisition dates and costs, the applicable NAV, grandfathering where relevant, the fund category, holding period, tax residency, other income, losses and exemptions.
For transfers on or after 23 July 2024, qualifying equity-oriented fund STCG under Section 111A is taxed at 20%, plus applicable surcharge and cess. Qualifying equity-oriented fund LTCG under Section 112A is taxed at 12.5% on aggregate eligible annual gains above ₹1.25 lakh. These rates are stated in the Income Tax Department's STCG guidance and Section 112A guidance.
From AY 2026–27, a specified mutual fund for Section 50AA broadly includes a fund investing more than 65% in debt and money-market instruments, or a qualifying fund-of-funds. Gains on covered units acquired on or after 1 April 2023 are treated as short-term and taxed at the applicable rate. The official capital-gains guide explains the updated definition.
- The calculator adds 4% Health and Education Cess to the selected base tax rate.
- It does not calculate surcharge, marginal relief, loss set-off, basic-exemption adjustment, grandfathered equity cost or tax treaties.
- The ₹1.25 lakh equity LTCG limit is annual and shared with other qualifying Section 112A gains.
- The first financial year uses the separate other-LTCG input. Later years assume no other Section 112A gains.
- Tax is shown as reducing net cash, not as an extra redemption from the corpus.
Return Risk and Sequence of Returns
A constant-return calculator cannot reproduce market volatility. During accumulation, an early fall may be followed by recovery while the investor continues buying. During withdrawals, the same fall forces more units to be sold at lower NAVs. Those units no longer participate in a later recovery. This is sequence-of-returns risk.
The scenario table changes the annual return by two percentage points while keeping withdrawals unchanged. It helps reveal sensitivity, but each scenario still assumes smooth monthly growth. A stronger review also tests an early multi-year decline, lower future returns, higher inflation and unexpected withdrawals.
- Keep near-term spending outside volatile assets.
- Use a withdrawal rate the portfolio can support under conservative assumptions.
- Review asset allocation and rebalance according to a written plan.
- Avoid treating one strong historical period as the expected future return.
- Recalculate after large market moves or material expense changes.
What the Sustainable Withdrawal Result Means
The calculator finds the starting monthly payment that brings the modeled balance close to zero at the selected end date. It respects the entered annual increase, delay, timing, return and cost. If withdrawals increase 6% each year, the starting sustainable amount will be lower than for a fixed payment.
The corpus-preserving result uses the same process but targets an ending balance equal to the original corpus in nominal rupees. Preserving ₹50 lakh after 20 years does not preserve its purchasing power. The real-corpus output discounts the ending value by the entered inflation rate.
A lifetime plan needs more than a single model. The end date, longevity, healthcare costs, dependants, emergency reserve, pension income, taxation and market behavior matter. Use the figure as a planning boundary, not an instruction to withdraw the exact maximum.
Common SWP Planning Mistakes
- Using a return assumption before expenses while entering zero cost.
- Increasing spending for inflation but keeping a fixed withdrawal in the model.
- Ignoring exit load during the scheme's applicable load period.
- Applying tax to the entire redemption instead of its gain portion.
- Assuming all units qualify as long-term without checking transaction dates.
- Ignoring other annual equity LTCG that uses the same ₹1.25 lakh threshold.
- Relying on average returns without testing poor early returns.
- Planning to exhaust the corpus with no emergency or legacy reserve.
Related Investment Calculators
Use these tools to compare accumulation, retirement needs, returns and inflation with your withdrawal plan.
Frequently Asked Questions
What is an SWP in a mutual fund?
A Systematic Withdrawal Plan is an instruction to redeem a specified amount or number of units from a mutual-fund investment at regular intervals. It creates scheduled cash flow but does not guarantee returns or corpus survival.
How does this SWP calculator work?
It applies an effective monthly investment return and scheduled redemptions for the selected period. It also models withdrawal increases, costs, inflation, timing, tax, exit load and annual balances.
What is a sustainable SWP amount?
In this tool, it is the highest starting monthly withdrawal projected to last through the selected period under the entered assumptions. It is not a guaranteed safe-withdrawal rate.
Does an SWP withdraw only investment returns?
No. An SWP redeems units. The payment may include both recovery of invested cost and capital gain. If the withdrawal exceeds portfolio growth, part of the original corpus is consumed.
Is the full SWP amount taxable?
Generally, tax applies to the capital-gain portion of units redeemed, not the full redemption. Actual tax depends on unit-level cost, holding period, fund category and the investor's tax position.
What tax rate does the calculator use for equity funds?
The equity LTCG option uses 12.5% above the available annual ₹1.25 lakh Section 112A threshold. The equity STCG option uses 20%. The tool adds 4% cess and excludes surcharge.
Should I increase SWP withdrawals for inflation?
Use an annual increase when expenses are expected to rise. A stepped withdrawal better represents purchasing-power needs but puts more pressure on the corpus in later years.
Why does withdrawal timing change the result?
A beginning-of-month withdrawal leaves less money invested during that month. An end-of-month withdrawal receives one month's modeled return before redemption, producing a slightly higher balance.
Does this calculator include market volatility?
No. It uses a constant monthly return derived from the annual assumption. Real returns vary, and poor returns early in the withdrawal period may shorten corpus life.