Four million dollars is a meaningful amount of savings, but it does not answer the retirement question on its own. Two households with the same balance can reach very different conclusions depending on what they spend, where the money is held, when they stop working, and how markets behave in the first years of retirement.

A more useful question is whether your plan holds up under realistic pressure. The five tests below can help you organize that review before you set a retirement date.

Test 1: Start with spending, not the balance

The starting point is what your household expects to spend each year, including costs that are easy to overlook: health insurance before Medicare, travel in the early years of retirement, home projects, support for children or parents, and gifts.

A simple ratio can frame the conversation. If you expect to withdraw $160,000 a year from a $4 million portfolio, that is a 4% initial withdrawal rate. If you expect to withdraw $240,000, that is 6%. The higher the rate, the more the plan depends on strong returns and the less room it has for surprises.

Withdrawal-rate rules of thumb are a starting point for discussion, not a guarantee. They are based on historical market periods and assumptions that may not match your situation or the future.

Test 2: Count the income you will not draw from the portfolio

Social Security, a pension, deferred compensation payments, rental income, or part-time consulting can reduce how much the portfolio needs to provide. The timing of each source matters as much as the amount.

For example, a household that retires at 62 and delays Social Security to 70 may draw more heavily from savings for eight years, then less afterward. The Social Security Administration explains how benefits change based on the age you claim. Mapping these sources year by year shows when the portfolio carries the most weight.

Test 3: Look at the plan after taxes

A $4 million balance spread across a 401(k), a taxable brokerage account, and a Roth IRA is not the same as $4 million in one account type. Withdrawals from pre-tax accounts are generally taxed as ordinary income, while qualified Roth withdrawals are generally tax-free and taxable accounts may produce capital gains.

The order in which you draw from each account can affect your lifetime tax bill, your Medicare premiums, and how much eventually passes to heirs. Required minimum distributions, which the IRS describes here, will also begin at a set age and can push income higher later in retirement. Testing the plan on an after-tax basis gives a clearer picture of what you can actually spend.

Test 4: Stress-test the first ten years

The returns you experience early in retirement can matter more than the long-run average. A large market decline shortly after you begin withdrawals can reduce the portfolio at the same time you are selling assets to fund spending. This is often called sequence-of-returns risk.

A practical stress test asks what happens if markets fall meaningfully in your first two or three years of retirement. Would you reduce spending? Draw from cash reserves or bonds while stocks recover? Delay a large purchase? Deciding on these responses in advance can make them easier to follow when markets are difficult.

Test 5: Plan for a long life and rising costs

Many retirement plans are built around an average life expectancy, but a married couple in their sixties has a meaningful chance that at least one spouse lives into their nineties. A plan should hold up if retirement lasts 30 years or more.

Inflation compounds over that period, and health care and long-term care costs can rise faster than general prices. Testing the plan with a longer horizon and a conservative inflation assumption can reveal whether the current spending level is sustainable or needs adjustment.

Putting the tests together

No single number answers whether $4 million is enough. A coordinated review can bring your spending, income sources, account types, tax picture, and estate goals into one plan, then show how that plan performs across a range of market conditions. The goal is not to predict the future, but to understand which decisions give you the most flexibility if conditions change.

For a broader look at how these pieces fit together, see our retirement planning approach and our page for pre-retirees.

Next step

If you are within a few years of retirement, now is a good time to test your plan rather than rely on a balance alone.

Start Your Financial Journey to discuss how your retirement plan holds up and what adjustments may help.