Retirement Withdrawal Calculator

Simulate fixed, inflation-adjusted, or constant-percentage withdrawals and see how a retirement portfolio may change over time.

Enter a starting portfolio, first-year withdrawal, return, inflation, and retirement duration, then choose a withdrawal strategy.

Retirement Withdrawal Calculator
Simulate fixed, inflation-adjusted, or constant-percentage withdrawals and see how a retirement portfolio may change over time.

About Retirement Withdrawals

Retirement withdrawal planning asks a different question from retirement saving: how can a portfolio support spending after paychecks stop? The retirement withdrawal calculator runs a simple annual projection using the entered starting balance, first-year withdrawal, expected annual return, inflation rate, duration, and withdrawal rule. At the start of each modeled year, the withdrawal is removed. The remaining portfolio then earns the assumed return. This ordering is intentionally conservative compared with models that assume withdrawals occur at year-end. The fixed-dollar strategy takes the same nominal amount every year. It is easy to understand, but inflation gradually reduces what that amount can buy. The inflation-adjusted strategy increases the prior withdrawal by the inflation assumption each year, seeking steadier purchasing power. The constant-percentage strategy applies the initial withdrawal percentage to the current balance every year. That approach makes portfolio depletion less likely because withdrawals fall after losses, but income can vary substantially. The initial withdrawal rate equals the first annual withdrawal divided by the starting portfolio. The widely discussed 4 percent rule begins near 4 percent and then adjusts the dollar amount for inflation. It came from historical research with particular asset mixes and horizons; it is not a guaranteed safe rate. A longer retirement, high fees, weak returns early in retirement, or unusually high inflation can require a lower starting rate. Flexible spending, later retirement, and additional guaranteed income may improve resilience. A constant return is useful for comparison but does not reproduce real market behavior. Two retirements with the same average return can finish very differently when losses occur in different years. Early losses combined with withdrawals create sequence-of-returns risk because fewer assets remain to participate in a later recovery. For that reason, test lower return assumptions and longer horizons rather than relying on a single average scenario. Results exclude taxes, investment fees, required minimum distributions, benefit income, account type, and changes in spending. Total withdrawn is the cumulative amount actually removed; if the portfolio is exhausted, the model stops and reports the funded years. The ending balance is not a forecast or a required inheritance target. Use this projection to compare rules, identify fragile assumptions, and prepare questions for a fiduciary professional. A practical plan can hold near-term spending reserves, rebalance investments, set guardrails for discretionary expenses, and revisit withdrawals when markets, inflation, health, or household needs change.

Withdrawal Strategy Examples

InputsResultNotes
$100,000 portfolio; $10,000 fixed; 0% return; 5 years$50,000 ending balanceFive equal withdrawals remove $50,000 with no growth.
$1,000,000 portfolio; $40,000 first withdrawal4.00% initial rateThe initial withdrawal rate is calculated before future inflation adjustments.
$200,000 portfolio; $20,000 fixed; 0% return; 5 years$100,000 ending balanceThe portfolio funds all five modeled years.

How to Model Retirement Withdrawals

  1. Enter the portfolio value available at the beginning of retirement.
  2. Add the first annual withdrawal and reasonable return and inflation assumptions.
  3. Choose the number of retirement years and a fixed, inflation-adjusted, or percentage strategy.
  4. Select Calculate, then compare ending balance, total withdrawals, and years funded across scenarios.

Retirement Withdrawal FAQ

When does the withdrawal calculator take each withdrawal?
It removes the withdrawal at the start of each year and then applies investment growth to the remaining balance. That beginning-of-year convention is conservative compared with spreading spending through the year.
What is an inflation-adjusted withdrawal?
The first withdrawal is entered directly, and every later withdrawal rises by the inflation assumption to target similar purchasing power. The fixed-dollar strategy does not apply that inflation step.
Does a positive ending balance prove the plan is safe?
No. Constant returns omit market volatility, sequence risk, taxes, fees, and unexpected spending.
Why can constant-percentage income fall?
The percentage is applied to the current portfolio, so a lower balance produces a smaller dollar withdrawal. The same rule also raises income after a strong market year.
Does the withdrawal calculator model required distributions?
No. Required minimum distributions and account-specific tax rules should be modeled separately. Use the RMD calculator and tax guidance for those obligations.