FIRE Withdrawal Rate Calculator
Initial Withdrawal Rate:
0.00%
Portfolio Longevity:
0 Years
Portfolio Balance after 30 Years:
$0.00
Understanding FIRE and Withdrawal Rates
FIRE stands for Financial Independence, Retire Early. The core mechanism of FIRE relies on accumulating a sufficient portfolio of assets such that the returns generated can cover your living expenses indefinitely. This calculator helps you determine if your current savings and spending habits align with your early retirement goals.
What is the Safe Withdrawal Rate (SWR)?
The Safe Withdrawal Rate is the percentage of your portfolio you can withdraw in the first year of retirement (adjusting that dollar amount for inflation in subsequent years) without running out of money for at least 30 years. The most famous benchmark is the 4% Rule.
The 4% Rule Explained
Derived from the Trinity Study, the 4% rule suggests that a portfolio consisting of 50% stocks and 50% bonds has historically had a very high success rate over 30-year periods if the retiree withdraws 4% of the initial balance in year one, and then adjusts that amount for inflation annually.
- Example: If you spend $40,000 per year, you need a portfolio of $1,000,000 ($1M x 4% = $40k).
- The Inverse Rule of 25: Another way to calculate your "FIRE Number" is to multiply your annual expenses by 25.
How This Calculator Works
This tool goes beyond simple division. It performs a year-by-year simulation considering:
- Portfolio Growth: Your investments grow based on the "Annual Investment Return" input.
- Inflationary Pressure: Your cost of living generally rises. This calculator increases your withdrawal amount every year based on the "Inflation Rate".
- Drawdown: Each year, the adjusted spending amount is subtracted from your portfolio.
Interpreting Your Results
If your Initial Withdrawal Rate is below 3.5%, your plan is considered very conservative and safe (often called FatFIRE or a high probability of success). If it is between 3.5% and 4.0%, you are in the standard safe zone. Rates above 5% carry a significant risk of portfolio depletion (running out of money) during a long retirement, especially if market returns are lower than average in the early years.