Safe Withdrawal Rate Calculator
Safe Withdrawal Rate is evaluated from Total Portfolio Value and Desired Annual Retirement Income. The calculation reports Your Withdrawal Rate, Max Annual Income at 4% and Max Annual Income at 3.5%.
Results
About the Safe Withdrawal Rate Calculator
The calculator uses a single formula configuration. Each reported value is read as a direct evaluation of the stored rules with the declared field formats and units.
Formula basis:
Your Withdrawal Rate = Desired Annual Income / Portfolio Value x 100
Max Income at 4% = Portfolio x 0.04
Max Income at 3.5% = Portfolio x 0.035
Monthly Income = Annual Income / 12
- < 3%: Very safe - portfolio should last 40 - 50+ years
- 3% - 3.5%: Safe - suitable for early retirement (40-year horizon)
- 3.5% - 4%: Historically safe - standard 30-year retirement
- 4% - 5%: Somewhat aggressive - consider income flexibility
- > 5%: High risk of depletion - reduce spending or increase portfolio
Interpret the outputs in the order shown by the result fields. Optional inputs affect only the outputs that depend on those variables.
Formula & How It Works
The calculation applies the following relations exactly as recorded in the metadata: Your Withdrawal Rate = Desired Annual Income / Portfolio Value x 100 Max Income at 4% = Portfolio x 0.04 Max Income at 3.5% = Portfolio x 0.035 Monthly Income = Annual Income / 12 - < 3%: Very safe - portfolio should last 40 - 50+ years - 3% - 3.5%: Safe - suitable for early retirement (40-year horizon) - 3.5% - 4%: Historically safe - standard 30-year retirement - 4% - 5%: Somewhat aggressive - consider income flexibility - > 5%: High risk of depletion - reduce spending or increase portfolio Each output field is produced by substituting the supplied inputs into the relevant relation and then applying the declared rounding or text format.
Worked Examples
Example 1: Standard Retirement (65, 30-year horizon)
Inputs
With Total Portfolio Value = 1,500,000 and Desired Annual Retirement Income = 60,000 as the stated inputs, the result is Your Withdrawal Rate = 4%, Max Annual Income at 4% = $60,000 and Max Annual Income at 3.5% = $52,500. Each value corresponds to the declared output fields.
Example 2: Well-Funded Retirement
Inputs
With Total Portfolio Value = 2,500,000 and Desired Annual Retirement Income = 80,000 as the stated inputs, the result is Your Withdrawal Rate = 3.2%, Max Annual Income at 4% = $100,000 and Max Annual Income at 3.5% = $87,500. Each value corresponds to the declared output fields.
Example 3: FIRE — Early Retirement (45, 50-year horizon)
Inputs
With Total Portfolio Value = 1,800,000 and Desired Annual Retirement Income = 72,000 as the stated inputs, the result is Your Withdrawal Rate = 4%, Max Annual Income at 4% = $72,000 and Max Annual Income at 3.5% = $63,000. Each value corresponds to the declared output fields.
Example 4: Underfunded — Needs to Adjust
Inputs
With Total Portfolio Value = 750,000 and Desired Annual Retirement Income = 55,000 as the stated inputs, the result is Your Withdrawal Rate = 7.33%, Max Annual Income at 4% = $30,000 and Max Annual Income at 3.5% = $26,250. Each value corresponds to the declared output fields.
Common Use Cases
- Determine if your portfolio supports your desired retirement income
- Find the maximum sustainable annual withdrawal amount
- Compare 4% vs 3.5% vs 3% safe withdrawal strategies