Calculator
Example Data Table
| Portfolio | Monthly Withdrawal | Return | Inflation | Fee | Tax | Years |
|---|---|---|---|---|---|---|
| $100,000 | $1,000 | 7% | 3% | 0.75% | 10% | 25 |
| $250,000 | $1,500 | 6.5% | 2.5% | 0.50% | 8% | 30 |
| $500,000 | $2,500 | 6% | 3% | 0.60% | 12% | 35 |
Formula Used
The calculator converts the annual return into a periodic return. The periodic return is:
Periodic Return = (1 + Annual Return)^(1 / Periods Per Year) - 1
If the withdrawal is net of tax, gross withdrawal is calculated as:
Gross Withdrawal = Net Withdrawal / (1 - Tax Rate)
The balance is updated each period by applying growth, deducting fees, and subtracting the gross withdrawal. The withdrawal can happen at the beginning or end of each period. Inflation and step-up rates increase the withdrawal once per year.
How To Use This Calculator
- Enter the starting portfolio value.
- Add the planned withdrawal amount.
- Select monthly, quarterly, half-yearly, or yearly withdrawals.
- Choose whether the withdrawal is net or gross.
- Enter expected return, inflation, fees, and tax rate.
- Add a target reserve balance if needed.
- Press the calculate button.
- Review the result and yearly projection table.
- Download the table as CSV or PDF.
Systematic Withdrawal Plan Guide
What This Calculator Does
A systematic withdrawal plan helps you draw regular income from an investment portfolio. It is often used during retirement. It can also support education, family income, or long term cash needs. This calculator estimates how withdrawals may affect your balance over time.
Why Assumptions Matter
Investment returns are never fixed in real life. Fees, taxes, and inflation also reduce usable income. A simple withdrawal number may look safe at first. It can become risky when costs rise each year. That is why this tool includes several adjustable fields.
Advanced Planning Options
You can model monthly, quarterly, half-yearly, or yearly withdrawals. You can also choose beginning or end period withdrawals. This matters because early withdrawals leave less money invested. End period withdrawals allow growth first. The difference can become larger over many years.
Tax And Fee Impact
The calculator separates net income, gross withdrawals, estimated tax, investment growth, and fees. This gives a clearer view of cash flow. It also shows whether your target reserve may be crossed. That reserve can represent emergency savings or legacy goals.
Inflation And Step-Up Withdrawals
Inflation reduces purchasing power. A fixed withdrawal may buy less each year. The inflation field raises withdrawals annually. The step-up field adds an extra planned increase. Use it for lifestyle changes, rising costs, or personal spending goals.
Reading The Projection
The yearly schedule shows the starting balance, withdrawals, tax, fees, growth, and ending balance. A declining balance is not always bad. Many withdrawal plans are designed to spend assets slowly. However, rapid balance decline is a warning sign. Lower withdrawals or higher returns may improve sustainability.
Practical Use
Use this calculator for planning, not promises. Test conservative returns. Try higher inflation. Compare several withdrawal amounts. Review the CSV or PDF with an adviser when making important retirement choices. Regular reviews help keep the plan realistic.
FAQs
What is a systematic withdrawal plan?
A systematic withdrawal plan is a method for taking regular income from an investment portfolio while the remaining balance stays invested.
Can this calculator show portfolio exhaustion?
Yes. If withdrawals, taxes, and fees reduce the balance to zero before the selected duration ends, the result shows early exhaustion.
Does the tool include inflation?
Yes. The inflation field increases the withdrawal amount once each year, helping estimate future income needs more realistically.
What is the difference between net and gross withdrawal?
Net withdrawal means the amount you want after tax. Gross withdrawal means the amount taken before tax is deducted.
Why does withdrawal timing matter?
Beginning period withdrawals reduce invested money sooner. End period withdrawals allow the balance to grow before money is removed.
Are investment returns guaranteed?
No. The return is only an assumption. Real markets can rise, fall, or move unevenly across different years.
What does target reserve balance mean?
It is the minimum balance you prefer to keep. The calculator notes when the projection first falls below that amount.
Can I export the result?
Yes. After calculation, you can download the yearly schedule as a CSV file or a PDF report.