There's a striking number buried in the 'Startup Trends Report' published by Startup Alliance and Open Survey. Fifty-one percent of employees at large corporations, and 47% of job seekers, said they had considered starting their own business within the past year. That works out to roughly one in two working professionals carrying a startup idea around in the back of their mind.

What Matters More Than Timing Your Exit

There's no shortage of news about government support for founders, either. For 2026, the total budget for startup and small-business assistance comes to about 3.46 trillion won, spread across 508 separate programs. Land a spot in the Pre-Startup Package, and you can receive up to 100 million won. Some people even strategize around it — apply before resigning, then time your departure once you've been selected.

But before the grant money catches your eye, there's something you need to check first: whether you can explain your 'revenue model' in actual numbers, the way a business plan demands. What does monthly revenue have to hit to clear break-even? What's the ratio of fixed costs to variable costs? How many months until you recoup your initial investment? If you can't answer these, you'll struggle both in the grant review and in the business itself.

A head for numbers isn't something you're born with. It's something you learn. If you can pick up how to read financial statements through a story rather than a dry textbook, even someone who breaks into a cold sweat at the sight of a spreadsheet can get started. Approaches that unpack managerial accounting like a novel really do lower that barrier.

Three Muscles to Build Before You Launch

A working professional preparing to start a business needs three things.

First, the muscle to sell. No matter how brilliant the idea, if you can't sell it, your revenue is zero. At a big company, the system does the selling for you. Leads come in on their own, and the brand builds trust on your behalf. Start your own business and that system vanishes. You begin from cold calls. The people who survive are the ones who can dial again after being rejected, who can pinpoint a customer's real problem and propose a solution. If you've never learned to sell in any structured way, you have to build that selling muscle before you walk out the door.

Second, the muscle to read — the head for numbers mentioned earlier. Why is revenue climbing while the bank account stays empty? Where is the money leaking when margins start slipping? You need to sense these things as part of your daily instinct, not just spot them in an end-of-month statement. The work that a financial planning team handles at a large company falls directly on the founder once you go out on your own.

Third, the muscle to endure. Walk away from a company you've spent 30 years at, and the title that came with your name — 'bujangnim,' the department head everyone called you — disappears overnight. The place you went every day is gone, and a new kind of day begins, one where the phone simply doesn't ring. People who have actually lived through it say the hardest part of life after leaving is enduring that emptiness while building a new rhythm. Just imagining that void before you hand in your resignation changes the quality of how you prepare.

Turning 51% of Thinking Into 1% of Doing

Half of the professionals weighing a startup will probably be sitting in the same chair next year, thinking the same thought. What separates the people who turn thinking into doing isn't some extraordinary idea.

It's the person who has worked out what they can sell under their own name, without the company logo behind them. The person who can answer, in numbers, exactly where their break-even point sits. The person who has sketched out, in concrete detail, the three-month void that follows their last day. Prepare these three things while you're still employed, and you'll be far steadier once you've left.

The legal retirement age at large Korean companies is 60, but data shows the actual average age of departure hovers around 56. If you're going to start a business, you need to begin preparing not 'someday' but 'right now, while you're still on the payroll.' The golden window isn't after you quit — it's before.