Short answer
There is no guaranteed number, so the honest answer is a framework rather than a promise. Start with the after-tax cash you actually received, not the headline price and not the rollover, which you should plan as if it were worth zero. Estimate your real yearly spending, then subtract the income you will have from other sources like a spouse's job, a pension, and eventually Social Security. The gap is what the portfolio must produce. Withdrawal rates are a way to size that: a sustainable rate is a small percentage of the portfolio each year, often discussed in a range of roughly 3 to 5 percent, but the safe figure is not fixed, and it depends on your age, how flexible your spending is, and your other income. Before Medicare at 65, budget for the full cost of your own health insurance, which the business used to help pay. Social Security can be claimed from 62 to 70, and waiting increases the monthly benefit. Finally, stress-test the plan against a bad early market, higher inflation, and a long life, and adjust spending rather than hoping.
Key facts
- Start from the after-tax cash
- Use the money you actually received, not the headline price. Plan the rollover as if it were worth zero.
- The gap to fill
- Yearly spending minus other income (spouse, pension, later Social Security) is what the portfolio must produce.
- Withdrawal rates are a range
- A small percentage of the portfolio each year, often discussed around 3 to 5 percent. There is no guaranteed safe number; it depends on your circumstances.
- Health insurance before 65
- Budget the full cost of your own coverage until Medicare. The business used to help pay this.
- Social Security timing
- Can be claimed from 62 to 70. Claiming later increases the monthly benefit.
Why there is no single magic number
Every seller wants one number: the amount that means they can stop working. It is a fair thing to want, and it does not exist, because the answer depends on things no rule can settle in advance. How much do you actually spend? How long will the money need to last? How much can you cut in a bad year? What else pays you? Anyone who hands a newly liquid owner a single figure is guessing, or selling something. What does exist is a framework, a way to turn your after-tax proceeds into a level of spending you can sustain, and then to pressure-test that spending against the things that can go wrong. This page walks through that framework. It gives ranges and methods, not promises, because an honest answer to this question is a range and a method.
Start from the cash you actually have
The number you build on is the after-tax cash you received at closing, not the headline price and not the rollover. The headline price was the enterprise value, before the rollover, the escrow, the fees, and the tax came out of it. The rollover is not spendable and may be worth nothing. So the honest starting figure is the money that is actually in your accounts after the tax on the sale is set aside. If part of your deal pays out later, through an earnout or an installment note, count those payments only as they become reasonably certain, and remember they carry their own future tax. The after-tax proceeds calculator exists to get you to this real number, and the rollover page explains why the stake stays out of the math.
Find the gap the portfolio has to fill
Retirement math is mostly one subtraction. Start with your real yearly spending, the honest figure including the irregular things: travel, home repairs, help for family, taxes, and health insurance. Then subtract the income you will have from other sources. A working spouse's income counts. A pension counts. Social Security counts once you claim it. What is left over, the gap between what you spend and what those sources cover, is the amount the portfolio has to produce each year. That gap, not the size of your check, is the number that decides whether you can retire and how your money should be invested. A large portfolio with a small gap is comfortable; a smaller portfolio with a large gap is tight, no matter how big the sale looked.
Withdrawal rates, as a range and not a promise
To judge whether the gap is sustainable, planners use the idea of a withdrawal rate: the percentage of your portfolio you draw each year to cover that gap. If your portfolio is $4 million and your gap is $160,000, you are drawing 4 percent. The reason the idea is useful is that spending a small enough share each year gives a portfolio a reasonable chance of lasting, while spending too much drains it. The reason it is not a promise is that the sustainable rate is not fixed. Discussions of sustainable withdrawal rates often land in a range of roughly 3 to 5 percent of the portfolio per year, but where you fall inside that range, and whether you should sit below it, depends on your circumstances.
Three things move the rate. Your age and how long the money must last: a retiree in their fifties needs the money to stretch further than one in their seventies, so plans on the lower end. Your flexibility: if you can cut spending in a bad year, you can start higher than someone whose spending is fixed. And your other income: the more of your needs Social Security and a pension cover, the less the portfolio has to carry and the more room you have. Use the rate as a test, not a guarantee. If your gap divided by your portfolio lands high in the range or above it, that is a signal to spend less, work a little longer, or expect to adjust, not a green light because a rule of thumb allowed it.
Run every version of this math on the after-tax cash alone, with the rollover set to zero. If your spending works on the cash, a rollover payout later becomes a bonus you can use to spend more, give more, or leave more. If your spending only works when you count the rollover, you are resting your retirement on an illiquid, could-be-zero asset, which is exactly the risk to avoid.
Replace the benefits the business used to provide
When you owned the business, it quietly paid for things your budget never saw as line items. The biggest is health insurance. Until you reach Medicare at 65, you now carry the full cost of covering yourself and your family, whether through the marketplace, a spouse's employer plan, or a private policy. This is real money, often a large yearly figure, and the gap between an early exit and 65 is one of the most underestimated costs of selling young. Marketplace coverage adds a wrinkle: the premium credits shrink as your income rises, so a big Roth conversion can raise your insurance cost, which ties this decision to the year-after tax plan. Other former benefits matter too. Your business retirement plan is gone, disability coverage the business paid for ends, and life insurance tied to the company may lapse. Price all of it into the spending number before you decide you can retire.
Time Social Security as a real decision
Social Security is a larger part of most retirements than owners expect, and when you claim it changes the size of the check for the rest of your life. You can claim as early as 62 or as late as 70. Claiming earlier gives you a smaller monthly benefit; waiting gives you a larger one, and this is a fixed feature of the program, not a market bet. For many people who can afford to wait, delaying buys a larger, inflation-adjusted income they cannot outlive, which is valuable protection against a long life. The right age depends on your health, your other income, and whether you are married, since a surviving spouse can inherit the larger benefit. Treat the claiming age as a genuine decision to model, not a default to take at 62 because the money is available.
Stress-test the plan before you trust it
A plan that works only when everything cooperates is not a plan. Test yours against the cases that actually threaten retirements.
A bad market early
A poor stretch in your first retirement years, while you are drawing income, does lasting damage, because you sell into falling prices. This is sequence-of-returns risk. Holding a few years of spending in safe assets, as the investing page describes, keeps an early drop from forcing bad sales.
Higher inflation
Rising costs quietly raise the gap the portfolio must fill every year. Check whether your plan still holds if your spending needs to grow faster than you assumed.
A long life
Plan for living longer than average, not for the average. Running the numbers to an older age, and leaning toward a lower withdrawal rate and a later Social Security claim, protects against the real risk of outliving the money.
The aim of these tests is not a single answer; it is a spending level you can sustain across bad cases, with the flexibility to adjust when reality differs from the plan.
When this does not apply to you
The framework assumes you are living off the proceeds. It does not fit if you are not actually retiring, if you took a large salary from the buyer or plan to start another business, in which case your income question is different and the portfolio is more about growth than replacing a paycheck. It does not fit if your spending is far below what your after-tax cash can support, where the harder questions become tax, estate, and giving rather than whether you can afford to stop. And the ranges here are illustrations of how the math works, not a forecast of what any portfolio will earn or a promise that a given rate is safe for you. Your own spending, age, and other income decide the answer.
What to do next
Get to your real numbers in order. First, use the after-tax proceeds calculator to find the cash you actually have, with the rollover set to zero. Next, write down your honest yearly spending, including health insurance before 65, and subtract your other income to find the gap the portfolio must fill. Divide the gap by your after-tax portfolio to see where your withdrawal rate lands in the range, and treat a high result as a signal to spend less or work longer, not a rule that clears you. Then stress-test the plan against a bad early market, higher inflation, and a long life, and decide when to claim Social Security. If you want help pressure-testing the whole picture, or you are not sure whether your situation is simple enough to do alone, the advisor page is honest about that, and the contact page explains how a first conversation works. See the after-sale plan for how this fits the wider first year.
Questions people ask
Is there a safe number I need to retire?
No single number, and be wary of anyone who names one. What you can find is whether your spending fits your resources. Estimate your real yearly spending, subtract your other income, and see whether the gap is a small enough share of your after-tax portfolio to be sustainable. That share, your withdrawal rate, is usually a low single-digit percentage, but the sustainable figure depends on your age, your flexibility, and your other income, so it is a range to plan within, not a promise to bank on.
What is a safe withdrawal rate?
A withdrawal rate is the percentage of your portfolio you spend in a year. Planners often discuss sustainable rates in a range of roughly 3 to 5 percent, but there is no guaranteed figure, because the right rate depends on your age, how much you can cut spending in a bad year, and how much other income you have. A younger retiree who needs the money to last longer generally plans on a lower rate; someone older with flexible spending can often use a higher one. Treat it as a range to test, not a rule.
Should I count my rollover equity toward my retirement number?
No. Rollover equity is illiquid, sits behind lenders and the private equity firm's preferred return, and can be worth nothing. The safe way to plan is to build your retirement on the after-tax cash you actually received and treat any rollover payout as a bonus. If it pays, you are better off than planned. If it does not, your retirement is unaffected because you never leaned on it. See managing rollover equity.
How do I handle health insurance before Medicare?
Budget for the full cost of covering yourself and your family until you reach Medicare at 65, because the business used to help pay for this and now you carry it. Coverage through the marketplace, a spouse's employer plan, or a private policy all cost real money, and marketplace premium credits shrink as your income rises, which interacts with Roth conversions. This gap between selling and 65 is one of the most underestimated costs of an early exit, so price it before you decide you can retire.
When should I claim Social Security?
You can claim as early as 62 or as late as 70, and the monthly benefit is larger the longer you wait, which is a fixed feature of the program rather than a market bet. Many people who can afford to wait find that delaying gives them a larger, inflation-adjusted income they cannot outlive, which is valuable insurance against a long life. The right choice depends on your health, your other income, and whether you are married, so treat the claiming age as a real decision, not a default at 62.
What does it mean to stress-test my plan?
It means checking whether your spending survives the things that can go wrong, rather than only the smooth case. Three tests matter most: a bad market in your first few retirement years, when withdrawals plus losses can do lasting damage; higher inflation raising your costs; and simply living longer than you expected. A plan that only works if markets cooperate is not a plan. The goal is spending you can sustain across bad cases, with room to adjust.
What is sequence-of-returns risk?
It is the danger of a poor market in the early years of retirement. Two retirees can earn the same average return over thirty years, but the one who hits a bad stretch right after they stop working, while taking withdrawals, can run out much sooner, because they are selling into a falling market. This is why holding a few years of spending in safe assets matters, so early losses do not force you to sell investments low. The investing page builds that cushion in.
Can I retire earlier because I have a rollover coming?
Plan as if you cannot. A future rollover payout is uncertain in both timing and amount, so building an early retirement on it is a bet on money that may never arrive. Base the decision on your after-tax cash and other income. If the rollover later pays, it can let you spend more, give more, or leave more, all good problems. Retiring early on a payout you do not yet have, and may never get, is how a good exit turns into a strained retirement.