The 4% Rule in Retirement: What It Is and Where It Falls Short
The 4% rule in retirement is one of the most widely quoted guidelines in personal finance. It offers a simple starting point for a big question: how much can I spend from my savings each year without running out? Simple rules are useful, but they are built on assumptions, and those assumptions may or may not match your situation.
Below, we explain what is the 4% rule, where it came from, what it leaves out, and how a retirement withdrawal strategy that coordinates investments and taxes may give you a more personal answer.
Start Here: A Complimentary Wealth and Tax Review
A rule of thumb is a starting point. Compound offers a complimentary, no-obligation wealth and tax review that may look at:
Your planned withdrawals: how much you expect to spend and from which accounts
Your portfolio: allocation, risk, and how investments are positioned for taxes
Your income sources: Social Security, pensions, and other income
Your tax picture: how withdrawals may be taxed over the coming years
Request your complimentary review.
What Is the 4% Rule?
The 4% rule suggests that a retiree withdraw 4% of their portfolio in the first year of retirement, then adjust that dollar amount each year for inflation. For example, a hypothetical retiree with a $1 million portfolio would withdraw $40,000 in year one. If inflation is 3% that year, the next year's withdrawal would rise to $41,200, regardless of how the portfolio performed.
The guideline traces back to research published in the 1990s that tested withdrawal rates against historical U.S. market returns. The research looked at portfolios split between stocks and bonds and asked what starting withdrawal rate would have lasted at least 30 years across historical periods, including difficult ones. Roughly 4% emerged as a rate that held up in those historical tests.
The appeal is clear. The retirement 4% rule is easy to calculate, easy to remember, and gives a rough sense of how much savings may be needed to support a given level of spending.
Where the 4% Rule Falls Short
The rule was designed as a research benchmark, not a personal plan. Several limitations are worth understanding.
It assumes a 30-year retirement
Someone retiring at 55 may need their money to last longer than 30 years. Someone retiring at 75 may have a shorter horizon. A fixed rate does not adjust for either.
It is based on past market history
Historical returns may not repeat. Future returns on stocks and bonds could be higher or lower than in the periods the research studied, and starting valuations and interest rates can influence what is realistic.
It ignores taxes
The 4% is a gross withdrawal. If that money comes from a traditional IRA or 401(k), part of it will generally go to federal and state income taxes. A retiree who needs a set amount of after-tax spending may need to withdraw more than 4%, or may need less if some withdrawals come from Roth or taxable accounts with lower tax costs.
It ignores fees
Investment and advisory costs reduce what is available to spend. The original research did not account for them in the way most investors experience them.
It does not respond to markets
The rule keeps increasing withdrawals with inflation even after a severe market decline. Most real retirees adjust their spending when markets fall, and that flexibility can matter a great deal.
Spending is rarely a straight line
Many retirees spend more in early, active years, less in the middle, and potentially more later on health care. A fixed inflation-adjusted withdrawal does not capture that pattern.
Alternatives Worth Discussing
A retirement withdrawal strategy can be built around your actual goals rather than a single percentage. Approaches often discussed include:
Guardrails: setting upper and lower spending limits that adjust when the portfolio rises or falls by a certain amount
Dynamic spending: recalculating withdrawals periodically based on the current portfolio value and remaining time horizon
Bucket approaches: holding near-term spending needs in cash or shorter-term bonds, and longer-term money in growth investments
Income floors: covering essential expenses with more predictable sources, such as Social Security or pensions, and funding discretionary spending from the portfolio
None of these is right for everyone, and each involves trade-offs between spending stability and portfolio longevity.
Why Taxes Change the Math
Two retirees with identical portfolios can have very different results depending on where their savings are held. A coordinated plan may consider:
Withdrawal order: whether to draw from taxable, tax-deferred, or Roth accounts first, or blend them each year
Roth conversions: converting pre-tax savings in lower-income years, which may reduce future required minimum distributions
Required distributions: planning ahead for the years when withdrawals from pre-tax accounts become mandatory, including options some retirees explore, such as whether you can lower RMDs using real estate
Charitable giving: qualified charitable distributions for eligible IRA owners may satisfy giving goals in a tax-efficient way
This is where wealth management and tax planning and preparation work best together. Investment decisions and tax decisions affect each other every year in retirement. For more context, read about high net worth financial planning and see examples of financial plans and what each one covers.
To see how a hypothetical portfolio may grow under different return and tax assumptions, try the Compound calculator. Results are hypothetical and for illustration only.
Planning Retirement Income in Wisconsin
Compound works with retirees and those approaching retirement throughout Wisconsin, including Milwaukee, Madison, Green Bay, Appleton, Brookfield, Kenosha, and Wausau, as well as surrounding areas. If you are comparing advisors, this guide on choosing a financial advisor for retirees in Wisconsin may help.
Ready to test the 4% rule against your own numbers? Request a complimentary wealth and tax review.
Frequently Asked Questions
What is the 4% rule in retirement?
It is a guideline that suggests withdrawing 4% of your portfolio in the first year of retirement and adjusting that amount for inflation each year after. It is based on historical market research, not a guarantee that savings will last.
Is the 4% rule still reliable?
It can be a useful starting point, but it does not account for taxes, fees, longer retirements, or changing market conditions. Many retirees use it alongside a more personalized plan.
Does the 4% rule include taxes?
No. The 4% is a gross withdrawal. Taxes on withdrawals from pre-tax accounts may reduce what you can actually spend.
What is a good retirement withdrawal strategy?
It depends on your goals, income sources, account types, and comfort with spending changes. Approaches such as guardrails, bucket strategies, and income floors are worth discussing with your advisors.
Can I withdraw more than 4% if I retire later?
A shorter time horizon may support a higher withdrawal rate, but this depends on your full situation, including health, other income, and how your investments are allocated.
Compound is a registered investment adviser. Registration does not imply a certain level of skill or training. This article is for informational and educational purposes only and should not be construed as personalized investment, tax, or legal advice. Examples are hypothetical and for illustration only. Tax laws are complex and subject to change. Strategies discussed may not be suitable for everyone, and there is no guarantee that any strategy will achieve its objectives or reduce taxes. Calculator results are hypothetical, are not guarantees of future results, and do not reflect any actual investment. Investing involves risk, including possible loss of principal. Diversification does not ensure a profit or protect against loss. Please consult your tax, legal, and financial professionals before acting on any information in this article. For more information, see Compound's Form ADV, available at adviserinfo.sec.gov.
About Compound Wealth
Many financial decisions involve more than one area of expertise. Compound Wealth provides integrated tax planning, wealth management, accounting, and business transition services so clients can evaluate financial decisions within a broader planning framework. This collaborative approach supports thoughtful conversations across multiple areas of financial life.
