"I'll just sell the business when I retire" is the most dangerous sentence in small business finance. Not because it's always wrong — businesses do sell, and some sell well. But because it's a retirement plan built entirely on a single, uncontrollable, illiquid asset that may or may not be sellable at a price that actually funds your retirement when the time comes.

Most business owners who say this have no retirement accounts, minimal personal savings outside the business, and a deep belief that the business's value will take care of everything. Some of them are right. Most find out too late that they weren't.

Why Business Sale Is Not a Reliable Retirement Strategy

Let's look at what actually has to go right for "I'll sell the business" to work as a retirement plan. The business has to be sellable — not all businesses are. It has to be worth what you think it's worth — many owners overestimate by a significant margin. Buyers have to exist and be qualified when you're ready to exit. You can't have a health event, family obligation, or market shift that forces the sale at the wrong time. And the net proceeds — after broker fees, taxes on the sale, and paying off any business debts — have to fund decades of living expenses.

In practice, more than half of small businesses listed for sale don't sell. Of those that do, the median transaction is significantly below what owners projected. One bad year before the sale can crater the valuation. If the business runs on your personal relationships and expertise, buyers will heavily discount the purchase price to account for that dependency.

The math problem: To generate $80,000 per year in retirement income from investment assets at a traditional 4% withdrawal rate, you need $2,000,000 in investable assets. After a business sale, broker fees alone typically run 8–12%. Then there's capital gains tax. A business that sells for $1.2 million net may only fund half of what you need.

Solo 401(k) vs. SEP-IRA — Which One Should You Use

Both are strong options for self-employed business owners with no full-time employees. The right choice depends on your income level and how much you want to contribute.

SEP-IRA is the simpler option. You can contribute up to 25% of your net self-employment income, up to $69,000 for 2024. Setup is easy, there's no annual filing requirement until the account is quite large, and you can open one up until your tax filing deadline. The downside: the 25% cap means lower-income owners can't front-load contributions aggressively, and there's no Roth option.

Solo 401(k) allows contributions as both employer and employee. As the employee, you can defer up to $23,000 (plus $7,500 catch-up if over 50). As the employer, you contribute up to 25% of compensation on top of that. This structure lets lower-income business owners contribute more relative to earnings. You can also open a Roth Solo 401(k), which allows tax-free growth. The tradeoff: slightly more administrative complexity and a Form 5500 filing requirement once assets exceed $250,000.

For most business owners earning $100,000 or more in net income who want to maximize retirement contributions, the Solo 401(k) wins. For those who want simplicity and contribute less than the maximum, the SEP-IRA is entirely adequate.

Building Income Outside the Business

The core discipline that separates business owners who retire comfortably from those who don't is simple: they build income-producing assets outside the business while the business is still running. Not just retirement accounts — though those are the first priority — but any assets that don't depend on the business continuing to operate.

This might be a funded IRA or 401(k). It might be investment real estate. It might be a taxable brokerage account. It might be permanent life insurance with cash value. The asset type matters less than the consistency of contribution and the independence from the business.

A practical target: by the time you're 50, personal net worth outside the business should be at least equal to one year of the business's annual revenue. That's not a magic number, but it's a useful sanity check. If you've been running a $500,000 per year business for 20 years and have $80,000 in personal savings outside the business, something went wrong with the allocation — not the business.

The Realistic Timeline

Retirement planning for business owners works best with a 10-to-15 year runway. That's enough time to fund retirement accounts meaningfully, build cash outside the business, and — if you want to sell — prepare the business to be sellable on your terms rather than someone else's timeline.

Starting at 55 with nothing outside the business is a different and harder problem to solve. It's not unsolvable, but the options narrow. Starting at 40 with a clear plan and consistent execution is a far better position to be in. Every year of compounding growth inside a retirement account that didn't happen is a year you can't get back.

More for Business Owners

→ Business Exit Planning — How to Sell on Your Terms → 5 Business Tax Strategies That Actually Move the Needle → Your Business Owner Wealth Action Plan → Complete Business Owner Wealth Guide

Let's Build a Real Wealth Plan for Your Business

Kyle Ellison works with business owners across Texas, California, and Nevada. Schedule a strategy session to talk about what's actually possible for your situation.

Frequently Asked Questions

Is it too late to start retirement planning at 50?
It's not too late, but the cost of waiting is real. At 50, you also qualify for catch-up contributions — an extra $7,500 per year in a Solo 401(k) or $1,000 in an IRA. Maximizing contributions aggressively from 50 to 65 while controlling spending and growing the business can still build a meaningful retirement base. The earlier you start, the better — but the second-best time is today.
How much do I need to retire comfortably as a business owner?
A simple starting point: multiply your desired annual retirement income by 25. If you want $100,000 per year, you need $2.5 million in investable assets. Factor in Social Security (which may be lower for business owners who paid themselves low salaries over the years), any rental income, and the possibility of part-time work. Your CPA and a financial planner can build a more precise model based on your actual numbers.
Should I fund a retirement account or pay off business debt first?
It depends on the interest rate. High-interest debt (over 7–8%) — pay it down aggressively. Low-interest business debt (under 5%) — the math often favors funding the retirement account, especially with the tax deduction. A mix is often the right approach: make minimum payments on low-rate debt while contributing consistently to retirement.
What happens to my retirement accounts if the business fails?
Qualified retirement accounts — Solo 401(k), SEP-IRA, IRA — are separate from the business and generally protected from business creditors under ERISA. This is one of the strongest arguments for funding retirement accounts over other forms of savings: the money is typically protected even in a worst-case business scenario. Consult an attorney for specifics in your state.