Last Updated on October 5, 2026 by T.J. Fitzgerald
Most people treat the 401(k) balance like a finish line. They glance at the number once or twice a year, feel okay or feel behind, and move on. The number by itself does not tell you whether the plan covers the years you still have left.
Smart retirees are not staring at a single account total. They are looking at the paycheck the account can produce, the order of market returns, health care, Social Security timing, and whatever else is layered next to the plan. Below are six tests. They are useful if you are a late starter and the balance is close but not obviously enough.
The balance is not the answer
A round number is a poor standalone test. A million, $800,000, or $500,000 only matters relative to the income you need after you stop working. Fidelity’s familiar salary-multiple benchmarks are roughly six times pay by age 50, eight times by 60, and ten times by 67. On a $100,000 income, that is $600,000 at 50 and $1 million at 67. Those multiples are a starting sketch, not a plan. Households do not spend the same way, and a multiple ignores Social Security, a pension, housing, and health care.
Published averages are easy to misuse. Vanguard’s year-end 2025 figures put the average 401(k) balance for ages 55 to 64 near $305,000, while the median sat near $107,000. Half of the people in that band had less than the median. The average is pulled up by a smaller group with large balances. Fidelity’s age bands land in the same neighborhood: balances in the low-to-mid $200,000s are common for people in their 50s, not rare.
Comparing yourself to the average answers the wrong question. The useful question is whether the income that account can produce, plus Social Security, plus anything else you have, covers the life you actually live.
Test 1: Balance versus the paycheck
Start with spending, not with a target balance. Essential spending is housing, food, transportation, insurance, and health care. Discretionary spending is everything you can cut without breaking the household. A 401(k) that looks large next to a modest essential budget can be thin next to a budget that still includes a mortgage, two car payments, and travel treated as non-negotiable.
Write the monthly number you need after taxes. Then list the income that does not depend on selling shares: Social Security at the age you can defend, any pension, part-time work you would actually do, and any contractual payment. The gap is what the 401(k) has to fill. If you skip this step, every later test is a guess.
Test 2: The withdrawal rate
This is the test that decides whether a 401(k) is enough or only looks like enough on a statement. The old 4 percent rule said you withdraw 4 percent of the portfolio in year one and then adjust that dollar amount for inflation. On a $260,000 balance, 4 percent is $10,400 a year, about $867 a month, before taxes.
Add an average Social Security retirement check, which has been running a little above $2,000 a month for a retired worker, and a household can land near $3,000 a month before anything else. Many retiree budgets still run higher once housing, food, transportation, and health care are included. The gap is visible without a spreadsheet.
The 4 percent figure has been argued over for years. William Bengen later pointed to a higher historical rate when the asset mix was broadened. Some forward-looking work, including Morningstar’s retirement-income research, has landed closer to the high 3 percent range for a 30-year horizon, depending on valuations and the stock-bond mix. For a late starter with a balance in the $200,000 to $300,000 band, a 3.5 to 4 percent withdrawal does not replace a salary. It produces a supplement.
That is not a moral failure. It is arithmetic. The useful distinction is between a nest egg that replaces a paycheck and a nest egg that fills a hole next to Social Security. Plan for the hole. Fees, taxes, and the order of returns all move the result, which is why a withdrawal rate should be stress-tested for the years right after work stops, not locked in from a headline.
Test 3: Sequence of returns
Two people can earn the same average return over 25 years and finish in different places because the returns arrived in a different order. If the market has a rough stretch in the first five to ten years of withdrawals, you sell more shares to fund the same grocery bill. Those shares are not there to recover when the market comes back.
That is why a 401(k) that looks adequate in a good year can feel thin after a bad one. Late starters have a shorter runway. You do not get 35 years of new contributions to absorb a bad sequence.
People who handle this well tend to do two practical things. They keep a cash buffer so they are not forced sellers in a down year. And they put some income outside the public-market sequence altogether, so the grocery bill is not entirely dependent on the index.
A performing seller-financed real estate note is one example of that second bucket. It is backed by real property. It pays on a schedule. You still underwrite the borrower and the property, and you still need a plan if the payment stops. The payment itself is not tied to what the index did last week. Notes do not replace a 401(k). They keep one account from having to do every job. Collateral, yield, and liquidity are not the same on every deal.
Test 4: Health care
Health care is the expense most 401(k) calculators underweight. Fidelity’s 2026 retiree health-care estimate says a 65-year-old retiring this year may spend about $185,500 on medical costs through retirement, up 7.5 percent from the year before. The figure assumes Original Medicare plus Part D. It does not include long-term care. In Fidelity’s breakdown, about 45 percent of the estimate is premiums, about 48 percent is cost sharing, and about 7 percent is out-of-pocket drugs.
The standard Medicare Part B premium for 2026 is $202.90 a month. For most people it comes out of the Social Security check before the check is seen. A couple retiring at 65 is looking at something closer to $370,000 on the same Fidelity method, and that still leaves out long-term care, most dental, vision, and hearing.
More than half of people approaching retirement still think Medicare covers everything. It does not. If the plan for health care is “Medicare will handle it,” the map has a hole. When someone asks whether a 401(k) is enough, the better follow-up is what they have reserved for the medical line, not only the travel line. Run the number with whoever helps you on Medicare decisions. A nice balance can hide a gap that shows up at 68.
Test 5: Social Security timing
Social Security timing decides how hard the 401(k) has to work. Full retirement age for most people watching this is 66 and some months, or 67, depending on birth year. Each year you delay past full retirement age adds about 8 percent to the benefit, up to age 70. Claiming early permanently reduces the check.
Delay is not automatic. Some people need the income at 62. Some have health reasons that make the delay a bad trade. The cleaner way to treat Social Security is as a floor you can raise or lower on purpose, not as a surprise that arrives when you get tired of working.
If a couple of years can be covered with part-time work, a cash buffer, or a small income layer, the higher lifetime check can take pressure off the 401(k). That is often a better lever than squeezing another half percent out of the equity allocation. Taxes, spousal benefits, and longevity all move the answer. Model the difference in dollars.
Test 6: Contribution room you still control
A lot of late starters underuse the one lever they still control. For 2026, the employee 401(k) deferral limit is $24,500. At 50 or older, the catch-up is $8,000, for a total of $32,500. If you turn 60, 61, 62, or 63 in 2026, the higher catch-up is $11,250, which puts the elective deferral at $35,750 if the plan allows it. Combined employee and employer contributions can reach $72,000 before catch-up.
There is a new wrinkle. If your prior-year FICA wages from the employer sponsoring the plan were over $150,000, catch-up contributions generally have to go in as Roth. That changes the tax timing. It does not make the catch-up less useful. If the plan does not offer Roth, a high earner may not be able to make the catch-up at all, which is worth checking before the year gets away.
The common pattern is contributing enough to get the match and then stopping. The match is free money. Stopping there leaves the catch-up on the table in the years it was designed for. If the paycheck cannot support the full catch-up, look at spending leaks first. A lifestyle upgrade that will still be a payment after the novelty is gone is a poor trade against plan room. People who add the catch-up for five or six years often change the trajectory more than they expected, not because markets were magic, but because they used room that was already there.
The income-layer test
This is the test that separates a 401(k) that is close from a 401(k) that is enough. Ask a plain question: if the market is flat for three years, does the household still cover the bills without selling shares in a panic? If the answer is no, the 401(k) is doing too many jobs.
A floor is built from pieces. Social Security is part of it. A pension, if you have one, is part of it. Cash reserves are part of it. Some people add a contractual payment secured by collateral. That is where seller-financed notes fit, as a layer, not as a replacement.
A performing first-position note on real property can be bought in a range that has often landed around 8 to 12 percent when the note is purchased at a discount or was written that way. In a typical setup the borrower keeps paying the taxes and insurance. You receive the monthly payment. You are not fixing toilets. You still do the work: payer history, equity, title, insurance, the local market, and what you would do if the payment stops. A note can be held inside a self-directed IRA in many cases, which can change the after-tax result. You can also start on the brokering side with no capital of your own, matching a seller who wants a lump sum with a buyer who wants the yield, and earning a fee for the introduction.
Yields, defaults, and hold periods vary. A note is not a CD and it is not a mutual fund. Treat it like underwriting, because that is what it is.
A plain example
Suppose someone is 58 with $260,000 in a 401(k). Four percent of that is $10,400 a year. Social Security is not online yet. A modest amount put to work in a small performing note, or a few brokered transactions using a funder’s money, can cover a utility bill or the gap that used to force a larger 401(k) withdrawal.
On a $5,000 note yielding 10 percent, the gross annual figure is about $500. That sounds small until a few of them are stacked, or until you remember the 401(k) did not have to sell shares to produce it. Liquidity still matters. Size the note position so you are not trapped. Keep the 401(k) on the long-term growth job. Let the note layer do part of the paycheck job.
What not to do
- Do not treat the 401(k) as enough because a target-date fund is green this quarter.
- Do not ignore fees inside the plan. One percent a year does not look like much until it runs across 15 years of withdrawals.
- Do not fund a lifestyle upgrade with a 401(k) loan and call it a wash.
- Do not assume you will work until 70 if your knees or your industry have other plans.
- Do not wait for a perfect number before you build a second income layer. Late starters do not get perfect. They get decisions.
So when is it enough?
A 401(k) is enough when the sustainable withdrawal, plus Social Security at a claiming age you can defend, plus any pension or side income, covers essential spending after health care, after taxes, and after a bad first decade of returns.
If the plan only works with a 5 percent withdrawal, no health-care shock, and a friendly market in years one through five, it is not enough yet. It is a start. That is an acceptable place to be at 48 or 55. It is a dangerous place to be if you stop looking.
The people who get control back do not wait for the statement to look like a magazine cover. They raise the contribution. They use the catch-up. They delay Social Security if the math supports it. They cut payments that are outlasting the enjoyment. And they add at least one income source that does not live and die with the public markets.
Questions people ask
Is $500,000 in a 401(k) enough to retire?
Only relative to spending. At a 4 percent withdrawal, $500,000 produces about $20,000 a year before taxes. That can be enough next to a solid Social Security check and a paid-off house. It is not enough as a full paycheck replacement for a household spending $60,000.
What is a safe withdrawal rate in 2026?
There is no single safe rate. The classic 4 percent rule is a historical observation, not a guarantee. Forward-looking estimates for a 30-year retirement have often landed a bit lower, depending on stock valuations and bond yields. Fees, taxes, and a bad early sequence matter as much as the starting percentage.
Does Medicare cover retirement health care?
No. Original Medicare plus Part D still leaves premiums, deductibles, coinsurance, and drugs. Fidelity’s 2026 estimate for a 65-year-old is about $185,500 over retirement, and that figure excludes long-term care. The 2026 standard Part B premium is $202.90 a month.
How much can I put in a 401(k) in 2026?
The employee deferral limit is $24,500. The age-50 catch-up is $8,000. The age 60 to 63 catch-up is $11,250. If your 2025 FICA wages from the plan sponsor exceeded $150,000, the catch-up generally has to be Roth.
Can a real estate note replace a 401(k)?
No. A performing note can be a payment layer next to the plan. It is underwriting, not a savings account. Buyer, property, title, insurance, and an exit plan all have to be checked. Results vary.
A next step
If you want the practical side of finding and evaluating notes, the resources at noteinvestors.com cover the basics. Leads are at noteinvestors.com/leads. The broker opportunity is the path that starts without tying up your own capital. The upcoming Note Investing Formulas program walks through the calculations and the due diligence steps.
This is education, not investment, tax, legal, or retirement advice. Contribution limits and Medicare figures are for 2026 and can change. Salary multiples, the 4 percent idea, and published averages are not a forecast of your result. Notes are not CDs, mutual funds, or bank deposits. Yields, defaults, and hold periods vary. Past performance is not a guide to future results. Run your own numbers with a qualified professional who knows your plan, taxes, and health coverage before you treat any figure as a decision.
IN THE “HOW TO TURN 90%..” PROGRAM, YOU WILL LEARN:
