What is the 4% rule?
It is a planning guideline that a retiree can withdraw 4 percent of the starting portfolio in the first year, then adjust that amount for inflation, with a reasonable chance of lasting 30 years. It is based on historical US data and is not a guarantee for every market.
Should I use my spending or my income?
Use spending. The target depends on what you will withdraw, and that is your annual living costs in retirement. Include housing, food, insurance, taxes and travel, and remove costs you expect to end, such as commuting or a mortgage you have paid off.
Does the calculator include taxes?
No. The projection uses gross returns and a flat withdrawal rate. Taxes on dividends, capital gains and withdrawals reduce what you can actually spend, so either use a lower withdrawal rate or add a tax allowance to your spending.
What return should I assume?
Use a return after inflation if you want the answer in today's money, and be conservative. Many planners use 4 to 6 percent real. Test a lower number to see how sensitive your timeline is.
Why might the answer say more than 100 years?
If savings are very small compared with the target and returns are low, the portfolio may never grow enough. Increase the yearly savings, lower spending, or raise the return assumption to see what changes the result.
Is my data uploaded?
No. The projection runs in your browser and nothing is sent to a server.