The Solo Firm Isn’t New. Its Ability to Scale Is.

The “firm of one” used to be a ceiling.

It was the choice you made when you valued lifestyle over scale. You could have a great work-life balance, but you’d never get rich.

That ceiling just turned into a floor.

Thanks to agentic AI, even the smallest firms can achieve the highest margins.

And now we have an example:

Sam Leon runs The Millennial CPA out of Richmond, Virginia. He has one office and zero employees. 70% of his budget goes to tech.

His firm was just featured in Accounting Today's 2026 Best Firms for Technology list, and it's a preview of the future.

We discussed this story (and more) in episode 486 of The Accounting Podcast.

The Grunt Work Is Gone

According to Sam, AI handles the preparation while he focuses on the review.

Tax workpapers that used to take a human 3 to 5 hours to build from financial statements now take AI 5 minutes. He can finish up year-over-year comparisons (which once ate up an entire afternoon) before his coffee gets cold.

He still applies professional judgment. But he isn’t spending hours on admin, document collection, data entry, and workpaper preparation.

His hiring strategy is simple. Don’t hire until the AI hits a wall.

Margin vs. Price

Larger firms should pay attention. Sam isn't competing with you on price. He's competing with you on margin.

He takes home a higher percentage of every dollar he bills because his cost structure looks nothing like yours.

Traditional firms have partners averaging 50+ hours a week to keep the lights on.

Solo practitioners using this model reclaim their time.

The largest firms face a talent retention problem driven by a model that demands people grind through years of low-paid work on the promise of a partnership that fewer than 1% will ever reach.

Sam has none of that.

The New Math of Going Solo

For accountants dreaming of going out on their own, this changes the math in a real way.

The traditional barrier to a solo practice was the operational load.

Doing everything yourself is exhausting. That's why most solo practitioners either burn out or hit a growth ceiling.

AI changes the definition of "doing it yourself."

Document organization, data extraction, and workpaper creation can be automated workflows.

You don't need a software engineer. You just need to invest in the right tech and verify the output. That's a skill any CPA can develop.

The New Competitive Threat

Your biggest competitor probably isn't a national player moving into your market.

It's the solo practitioner with low overhead, automated workflows, and the ability to maintain quality while operating at a fraction of your cost.

There will be more of them. The friction of running a one-person shop drops every year.

So, will large firms adapt before the margins compress?

Listen to the full discussion on Episode 486 of The Accounting Podcast.