A retiree in Zurich with 1,500,000 CHF of savings reads about the 4% rule and concludes the plan supports 60,000 CHF a year. A retiree in Munich with 1,200,000 EUR reaches the same conclusion and plans on 48,000 EUR. Both are using the rule the way most retirement blogs teach it. Whether it is safe depends on history they may not share.
The 4% rule was not derived from "the stock market." It came from one market, in one country, over one historical window.
The 4% Rule's American Roots
William Bengen's 1994 study used U.S. returns from 1926 onward and found that withdrawing 4% of the starting balance, raised with inflation each year, survived every 30-year period for a 50/50 stock and bond portfolio.
The U.S. had an unusually good 20th century. According to Dimson, Marsh and Staunton, U.S. stocks returned 6.3% a year after inflation from 1900 to 2002, against 5.4% for developed markets as a whole. The U.S. also avoided the hyperinflation and wartime destruction that hit much of Europe.
What International Research Shows
In 2010, Wade Pfau repeated Bengen's method for 17 developed countries, using data from 1900 to 2008 (Journal of Financial Planning, December 2010). For each country he found the highest withdrawal rate that would have lasted 30 years for every retirement starting between 1900 and 1979 - even assuming the retiree picked the best stock/bond/cash mix in hindsight, with no fees:
| Country | Survived every period | Worked in 90% of periods |
|---|---|---|
| Canada | 4.42% | 5.04% |
| United States | 4.02% | 4.70% |
| United Kingdom | 3.77% | 4.17% |
| Switzerland | 3.59% | 4.08% |
| Netherlands | 3.36% | 4.14% |
| Spain | 2.56% | 3.07% |
| Italy | 1.56% | 2.61% |
| France | 1.25% | 2.62% |
| Germany | 1.14% | 1.52% |
| Japan | 0.47% | 0.54% |
Only four of the 17 countries stayed above 4% (Canada, Sweden, Denmark and the U.S.). With a plain 50/50 mix instead of the hindsight-best one, none did: Canada topped out at 3.94% and the U.S. at 3.66%. The unluckiest retiree in the whole dataset retired in Japan in 1940 - a 4% withdrawal lasted only three years.
Two things are worth keeping in mind. The lowest figures come from wars, hyperinflation and currency collapses in the first half of the 20th century. And the "90%" column is kinder: in the UK, Switzerland and the Netherlands, about 4% worked in nine out of ten historical periods.
Why This Matters for You
The lesson is not that every European should withdraw 1%. It is that the 4% rule's safety came from an exceptionally good historical record, and even the U.S. record does not guarantee the next 30 years. A few things make a bigger difference than the exact starting number.
Your pension changes the math. The withdrawal rate only applies to what your savings have to cover. If a state or occupational pension pays a large share of your costs, you need far less from your savings, and a lower safe rate still supports a good retirement. Check your own number:
Try it
What's your withdrawal rate?
Only the part of your spending that savings have to pay counts. Pensions and Social Security cover the rest.
Your withdrawal rate
3.5%
28,000 a year from 800,000 of savings
Free, no account needed. Opens a plan retiring at 65 with this withdrawal, tested against 1,000 possible futures. The simulator asks for spending after tax: at its default 20% tax, 48,000 a year is about 3,200 a month.
Yearly amounts before tax, in today's money. A rule of thumb, not a plan: it ignores taxes, when income starts and how you invest - the simulator includes those.
Flexible spending protects you where history was harsh. A rule that spends a little less after bad years, like Guyton-Klinger guardrails, responds to exactly the kind of long bad stretches that broke fixed withdrawals in Europe.
Currency is part of your risk. If you spend in euros or francs but hold U.S. stocks, exchange rates move your spending power too. Holding a meaningful share of investments in your own currency, or currency-hedged funds, reduces that.
Plan for longer than 30 years if you retire early. Pfau's figures, like Bengen's, are for 30-year retirements. A longer retirement needs a lower starting rate.
How to Model This
A Monte Carlo simulation lets you test your own plan instead of borrowing a rule:
- Enter your pensions as income that starts at the right age and rises with inflation where yours does.
- Choose return assumptions you believe in. If you think the future may look less like the U.S. 20th century, use a cautious outlook and see whether your plan still holds.
- Test flexible spending against fixed spending on the same plan.
- Stress-test the first years with a market crash right after you retire.
The 4% rule is a useful starting point, not a universal law. With your pensions and your spending in the picture, you can see what your own plan supports.
Frequently Asked Questions
- Does the 4% rule work for European retirees?
- Historically, less reliably than for Americans. In Wade Pfau's 2010 study of 17 countries (retirements starting 1900-1979), the highest withdrawal rate that survived every 30-year period was 4.02% in the US but 3.77% in the UK, 3.59% in Switzerland, 1.25% in France and 1.14% in Germany - even with the best possible asset mix chosen in hindsight.
- Why were safe withdrawal rates lower in Europe?
- Mostly because of the 20th century's worst events: two world wars, hyperinflation in Germany, and very high inflation in France and Italy destroyed real returns for long stretches. The US had one of the best stock markets of the century (6.3% a year after inflation from 1900 to 2002, against 5.4% for developed markets overall, according to Dimson, Marsh and Staunton).
- Does a state pension change the calculation?
- Yes. The withdrawal rate only applies to the part of your spending your savings have to cover. A state or occupational pension that pays a large share of your costs means you need less from savings, so a lower safe rate can still support a comfortable retirement.
- How do I model a European retirement in a Monte Carlo simulation?
- Enter your state and occupational pensions as income that starts at the right age, use return and inflation assumptions you consider realistic for your investments and country, and test flexible spending. A cautious market outlook is a sensible check if you think the next decades may look less like the US 20th century.
Now try it with your own numbers
An example plan is filled in - change anything, then open it in the free simulator.
Opens the free simulator with these numbers filled in - check them and run it. Nothing is stored unless you create an account and save.