Use the 4% rule as a starting point, with its limits: test your skills
A rule of thumb from historical research for how much a retirement portfolio might support — useful as a starting point, not a promise. Answer each question to see the explanation; your score appears at the end.
This test checks that you can
- Explain where the 4% rule came from
- Use ×25 to estimate a target
- List the rule’s limits
- Practice
1. The 4% rule is based on…
- Practice
2. A quick target from the rule is…
- Practice
3. Which matters most to how long money lasts?
- Key idea
4. Which statement best explains "A historical finding"?
- Key idea
5. Which statement best explains "×25 is a quick target"?
- Key idea
6. Which statement best explains "Early years matter most"?
- Action plan
7. In the action plan, which step comes first?
- Mistake to avoid
8. Which of these is a mistake this lesson warns against?
- Mistake to avoid
9. Which of these is a mistake this lesson warns against?
You expect to need $36,000 a year from savings. What portfolio does the 4% rule of thumb suggest?
Show the answer
$900,000
$36,000 × 25 = $900,000 (equivalently $36,000 ÷ 0.04).
Estimate your yearly retirement gap and multiply it by 25.
More tests in this bootcamp
- Understand your 401(k) and employer match
- Open the idea of an IRA: account first, investments inside
- Compare Roth and Traditional IRAs through the tax timing
- Understand the backdoor Roth IRA and its tax pitfalls
- Understand an HSA’s tax benefits and receipt records
- Explore how claiming age changes Social Security benefits
- Use the 4% rule as a starting point, with its limits
- Plan for required minimum distributions
- Check the costs and commitments of early retirement withdrawals
- Final exam: Retirement accounts