스타트업M&A Lawyer | Structuring, Diligence, and Closing a Startup Deal

스타트업M&A | Three Common Ways to Structure a Startup Deal

Most startup M&A transactions in Korea take one of three basic shapes. The right choice depends on whether the buyer wants the whole company or just certain assets, how the target's investors and option holders are set up, and how much post-closing risk the buyer is willing to absorb.

스타트업M&A | Choosing Between Share Deal, Asset Deal, and Merger

The structure decision is not just a tax question — it determines who bears liability for the target's past conduct, how much of the deal needs shareholder approval, and how long the transaction takes to close.

Why liability allocation drives the choice

In a share deal, the buyer effectively steps into the target's shoes and inherits its liabilities, known and unknown, unless the share purchase agreement carves out indemnities. In an asset deal, the buyer can select which liabilities to assume, but risks losing the benefit of licenses, permits, or contracts that are not freely assignable. This trade-off is usually the single biggest factor in structuring conversations for early-stage targets with thin diligence history.

Shareholder approval thresholds

A merger requires approval by special resolution — at least two-thirds of voting shares present and one-third of total issued shares (상법 제522조, 상법 제434조) — from both companies. A sale of substantially all business assets similarly requires a special resolution under 상법 제374조. Founders who assume a simple majority is enough often discover late in the process that dissenting minority shareholders can block or delay closing.

Creditor protection and its effect on timing

Statutory mergers require a public notice period during which creditors may object and demand payment or security (상법 제527조의5). This period, generally at least one month, is a fixed floor that cannot be compressed even if both parties want to close faster, and should be built into any signing-to-closing timeline discussed with an acquirer.

스타트업M&A | What Due Diligence Actually Surfaces in a Startup Target

Diligence in a startup deal spends less time on physical assets and more time on the cap table, IP ownership chain, and employment structure — the areas where early-stage companies tend to have gaps.

Cap table and convertible instruments

SAFEs, convertible bonds, and advance subscription agreements often convert into equity on triggers tied to the M&A transaction itself, which can dilute the founders' and buyer's expected post-closing ownership if not modeled correctly before signing. A clean pre-signing cap table reconciliation is usually the first deliverable a diligence team asks for.

IP ownership and work product assignment

If core technology was built by contractors, early co-founders who later departed, or during a founder's prior employment, the chain of IP assignment needs to be verifiable in writing. Gaps here are one of the most common reasons a deal's valuation gets renegotiated or a portion of consideration gets placed in escrow pending confirmation.

Employment and stock option structure

Buyers typically review whether option grants were properly authorized by board resolution and whether vesting schedules, change-of-control acceleration clauses, and any informal promises to early employees are documented consistently. Undocumented verbal equity promises are a frequent source of post-closing disputes once employees see the actual allocation table.

스타트업M&A | Founder Equity, Earn-Outs, and Post-Closing Employment

For founders, the headline valuation is often less important than how the consideration is structured — cash at closing versus earn-out, and whether continued employment is a condition of receiving full payment.

Earn-outs tied to post-closing performance

Buyers frequently structure part of the purchase price as an earn-out contingent on revenue, user growth, or product milestones achieved after closing. Founders should look closely at how those metrics are defined and who controls the business during the earn-out period, since the acquirer's post-closing decisions can directly affect whether the earn-out targets are met.

Restrictive covenants and continued employment

Non-compete and non-solicitation clauses attached to a founder's post-closing employment agreement need to be reasonable in scope, duration, and geography to be enforceable; overly broad restrictions can be challenged as an unreasonable restraint on the founder's right to work. Whether the earn-out or a portion of the purchase price is forfeited upon early resignation is a heavily negotiated point.

Tax treatment of the sale proceeds

Whether a founder's gain is taxed as a capital gain on share transfer or characterized differently depends on the structure and the founder's shareholding history, and this can materially change the founder's after-tax proceeds. This is an area where deal structuring and tax advice need to be coordinated before signing, not after.

스타트업M&A | Representations, Warranties, and What Happens After Signing

The gap between signing and closing, and the period immediately after, is where most disputes actually arise — usually over whether a representation made in the agreement turns out to have been inaccurate.

Representations and warranties as risk allocation

Reps and warranties are not boilerplate — they are the mechanism by which the parties allocate the risk of unknown problems discovered after closing. A breach of a representation about clean IP ownership, for instance, can trigger an indemnification claim even after the deal has closed and paid out.

Escrow and holdback mechanics

It is common for a portion of the purchase price to be held in escrow for a defined period to cover potential indemnification claims. The negotiation over escrow size, duration, and the threshold for making a claim ('basket') often has as much practical effect on the founders' actual take-home as the headline valuation figure.

Regulatory filings and closing conditions

Depending on deal size and the sectors involved, closing may be conditioned on merger filings with the Korea Fair Trade Commission or other regulatory clearances. Failing to account for these conditions in the closing timeline is a common source of delay for parties who assumed the deal would close on signing.

스타트업M&A | From Initial Advisory to Post-Closing Support

스타트업M&A | How Fees Are Calculated for M&A Advisory

※ Costs vary depending on case complexity and specific circumstances; exact fees will be provided during consultation. No specific outcome is guaranteed.

Frequently Asked Questions

Official References

• Korea Law Information Center — https://www.law.go.kr
• Easy-to-Find Everyday Legal Information — https://easylaw.go.kr
• Korea Legal Aid Corporation — https://www.klac.or.kr
• Ministry of Employment and Labor — https://www.moel.go.kr