DailyDime

You’re not too old to start over. If you want to leave a corporate job and start a business, don’t let your age scare you off.

Take it from me. I was in banking, then venture, then insurance, then pet insurance, then pet specialty retail, and now I’m in consumer hardware. That path wasn’t a master plan. I keep looking for what’s next, what interests me, and where the opportunities are going to be.

I’m not saying everyone should uproot their career and start over. Change is actually super stressful. But you can make a change.

If you’re already in a career you love, you can stop reading. If you’ve always had the itch to start a business, or a real pull toward an industry, this is for you.

Age is just a number

There are countless reasons not to make a career change, and between friends, most of them are wide and valid. If you’re starting a family, health insurance matters. If you have young kids, steady income is ideal for a comfortable home life. If you went to medical school to become an orthopedic surgeon, surgery is a great way to make a living and you should probably stay in that lane.

The one reason I find invalid is age.

It can feel taboo for someone older to start a business. Most of us picture founders as Stanford dropouts in their early twenties. The data tells a different story.

Notable late starters

The list below skews toward founders who built category-defining businesses after 40, because “late” in founder mythology means anything past the Zuckerberg window. Ages are at the founding of the business they’re known for.

Pattern worth noting: almost none of these were first ventures. Most had 15 to 25 years of domain experience, a prior sale or a prior failure, and capital or credibility from the earlier career. Duffield, Siebel, Parsons, and Marcus were second or third acts funded by the first. Sanders, Ando, and Rasmussen started from something closer to zero, but even they had decades in the industry.

What the founder-age data actually says

The definitive dataset is Azoulay, Jones, Kim, and Miranda, using Census Bureau administrative records and published in AER: Insights in 2020. It’s the study built on ground-truth records rather than LinkedIn scraping or press coverage.

They looked at the 2.7 million people who founded U.S. businesses between 2007 and 2014 that went on to hire at least one employee. Average founder age across all those employer firms was 42. The highest-growth ventures had an average founder age of 45.

The number moves the wrong direction for the youth narrative as you go up the performance curve. Founders of the top 0.1% fastest-growing firms averaged 45.0 at founding, compared with 43.7 for the top 1% and 42.1 for the top 5%. Founders of firms that exited via acquisition or IPO averaged 46.7. Conditional on starting a firm, a 50-year-old founder is about 1.8 times as likely to produce upper-tail growth as a 30-year-old. Founders in their early twenties had the lowest odds.

Sector cuts look similar. High-tech, VC-backed, and patenting firms had average founder ages of about 43, 42, and 45. The strongest predictor in the study wasn’t age. Founders with prior employment in the same industry were about twice as likely to reach the top of the growth distribution. Age is mostly a proxy for that.

Who is actually starting businesses

Kauffman Indicators, from Current Population Survey data:

• Between 1996 and 2019, the share of new entrepreneurs aged 20 to 34 fell from 34.3% to 27.2%. The 35-to-44 share fell from 27.4% to 22.9%. The 45-to-54 share rose slightly, from 23.5% to 24.8%. The 55-to-64 group went from 14.8% to 25.1%, about one in four new entrepreneurs.
• New business formation is now roughly evenly split across the four working-age buckets. That is a major shift from the 1990s, when it skewed young.
• The rate of new entrepreneurs is lowest among the youngest group. Part of the 55+ growth is demographic (more people in the bucket), but the per-capita rate has also held up.
• Kauffman’s 2025 national report found the rate of new entrepreneurs increased again and remained above pre-pandemic levels.

The clean summary: the average founder is early forties, the best founders are mid-forties, and the fastest-growing founder demographic over the past 25 years is 55 to 64.

First-time owners via acquisition

Two separate markets: funded search (Stanford-tracked) and Main Street / SBA deals. Very different economics.

Search funds

Stanford GSB’s 2024 study covered 681 search funds formed in the U.S. and Canada since 1984. A record 94 launched in 2023. Aggregate IRR was 35.1% and ROI was 4.5x. The study only includes first-time searchers by design. Median purchase price was $14.4 million on $2.2 million of EBITDA, and tech or tech-enabled services made up a large share of deals.

The 2026 update (data through 2025) is the current one: 862 funds, 33.9% IRR, 4.75x ROI. Only about 48% of funds launched from 2021 to 2024 completed an acquisition, versus 58% all-time. The study attributes that to tougher deal conditions and a wider range of searcher quality. Of acquired companies, roughly a quarter ended in a partial or total loss.

Read the headline IRR skeptically. In the 2024 study, excluding the top five funds dropped the numbers to 32.6% IRR and 3.2x. A Yale SOM case from October 2025 reported a 2.80x mean fund-level MOIC across 23 funds, versus Stanford’s pooled 4.5x in the prior edition. Still excellent by private-equity standards. The asset class is more of a barbell than the average implies.

Main Street / SBA

The scale is much bigger, and the buyer is different. In the core Main Street range, first-time buyers are often the largest group, with serial entrepreneurs close behind. The supply side driving this: more than half of privately held U.S. businesses are owned by people 55 and older, and only about a quarter of private companies have a formal succession plan. McKinsey projects annual small-business exits could reach 665,000 a year, 42% above 2011 levels.

SBA 7(a) is the financing rail for nearly all of this. Current terms in brief: loans up to $5 million, typically 10-year amortization on acquisitions, 75% SBA guarantee on larger loans, personal guarantee required, and a 10% minimum buyer equity injection. Lenders often want 15%, and first-time buyers with thinner backgrounds can see 20% to 25%. Pricing is usually Prime plus a spread. With Prime recently at 6.75%, larger acquisition loans have often landed in the high-9 to low-11 percent range.

Equity can come from savings, a ROBS rollover of retirement funds, a documented family gift, or a HELOC. Seller notes are common. A note on full standby can count toward part of the equity injection; notes that are not counting as equity can start paying the seller after a standby period. A 2023 change also made partial changes of ownership easier, so the seller can stay on through transition.

One tightening to flag: effective March 1, 2026, SBA 7(a) and 504 financing requires 100% ownership by U.S. citizens or U.S. nationals with a primary residence in the U.S. That rescinded the 2025 allowance for lawful permanent residents.

Lenders want relevant management experience, but not necessarily same-industry ownership. First-time buyers with thin professional backgrounds get more underwriting scrutiny. Which ties back to the Census data: the same domain-experience premium that shows up in the founder research is what SBA underwriters are pricing.

If the itch is still there, the evidence is not “you’re too late.” It’s that the years you already spent in an industry are the asset.