Wikipedia says, “The 4% refers to the portion of the portfolio withdrawn during the first year (of retirement). It is assumed that the portion withdrawn in subsequent years will increase with the consumer price index (CPI) to keep pace with the cost of living.”
Your investments will pay dividends and appreciate in value at an average annual rate of 7% before inflation. The inflation rate should typically be around 3% at most. That leaves you with a 4% safety withdrawal rate.
Many people who aim for financial independence and early retirement (FIRE movement) calculate their yearly spending (budgeting is essential) and save about 20-30 times their annual spending before retiring to enjoy a financially independent life to the fullest. For instance, if your annual budget is £ 40,000, you will need £1,000,000 to retire comfortably. (4% = 1/25, so you have to have 25x of your annual spending available, not to ever theoretically have to dig into your pool, just live off interests). The Trinity study shows that you will never run out of money over a 30-year retirement period with a 4% withdrawal rate. So, check out that study if you want to see the hardcore numbers.
I know that anything can happen in the reality of early retirement. A pandemic, “unpredictable” climate behaviour, etc., may suddenly affect how the market behaves. However, being flexible with your budget while retired, especially for early retirees, is one of the most critical skills the FIRE movement encourages people to learn. If the markets go down, you can easily adjust your costs of living without feeling deprived. If people feel deprived in any way, it will be tough to make lifestyle adjustments.
So far, this part of the FIRE journey has been the most rewarding for me on a personal level. However, budget flexibility is just one way of sailing through rough seas. Creating passive income streams and looking for a part-time job have been successfully explored by many people who needed to earn extra money while retired. Also, once you reach retirement age, you are eligible to claim a government or company pension that will add to your annual budget.
If you are at the start of your journey to financial independence, using the 4% rule to calculate your retirement number will help you become financially free and independent. Knowing the number will also help you calculate how much you need to invest and how long it will take you to retire.
A financial calculator that will help you calculate how much money you need to retire
cFIRESIM will also help you run your financial calculations
This is what JLCollins has to say about the 4% rule.
PS. I’m made by Made by Dyslexia, so expect small typos and big thinking.
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