Retirement Planning Insights

Expert analysis on historical simulation, withdrawal strategies, and financial independence planning

4% Rule UK: Why British Retirees Need a Different Strategy

4% Rule UK: Why British Retirees Need a Different Strategy

Imagine it's January 1936 and you've just retired with £1,000,000, a fortune. Suppose you follow today's "sensible" advice: withdraw 4% annually from your balanced 60/40 …

8 min
Maximum Withdrawal Rate: 4%, 5%, or 6%? 150 Years of Evidence

Maximum Withdrawal Rate: 4%, 5%, or 6%? 150 Years of Evidence

The 1966 retiree could safely withdraw 3.9% annually (adjusting for inflation). The 1982 retiree could safely withdraw 11.8%, a full three times more spending power …

8 min
How Long Will $1M Last? We Tested Every Year Since 1871

How Long Will $1M Last? We Tested Every Year Since 1871

Type "how long will $1 million last in retirement" into Google. You'll get a dozen articles all saying the same thing: "it depends" or "25-40 …

15 min
The 4% Rule Is Wrong: What the Creator Now Recommends

The 4% Rule Is Wrong: What the Creator Now Recommends

For 30 years, retirees have trusted the 4% rule to make their savings last. But William Bengen, the financial planner who invented it, later said …

12 min
Retirement Calculator: Inputs That Determine Success

Retirement Calculator: Inputs That Determine Success

Before you can stress-test your retirement plan against 100+ years of market history, you need to understand what you're actually testing. This guide breaks down …

11 min