스타트업M&A Lawyer
스타트업M&A Lawyer | Structuring, Diligence, and Closing a Startup Deal
Startup M&A differs from ordinary corporate transactions because so much of the target's value sits in unregistered IP, founder relationships, unresolved SAFE/CB conversions, and stock option pools rather than in hard assets. A deal structured without care for these can leave an acquirer holding undisclosed liabilities, or leave a founder with unexpected tax exposure or a diluted earn-out. Under the Commercial Act, both share transfer and merger routes require compliance with shareholder approval and creditor protection procedures (상법 제522조, 상법 제527조의5), and the specific structure chosen affects tax treatment, employee retention, and post-closing liability. This page walks through the structural choices, diligence issues, and closing risks that most often decide whether a startup deal actually delivers what both sides expected.
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.
| Approval needed | Selling shareholders' consent; board approval |
| Liabilities transferred | All existing liabilities carry over |
| Speed | Relatively fast if cap table is clean |
| Typical use | Buyer wants the whole entity, including licenses/contracts |
Governed mainly by a share purchase agreement and the Commercial Act's share transfer rules; existing contracts and liabilities of the target generally survive the change of ownership.
| Approval needed | Board approval; shareholder approval if assets are substantial (상법 제374조) |
| Liabilities transferred | Only those expressly assumed |
| Speed | Slower — each asset/contract may need separate transfer |
| Typical use | Buyer wants IP/product but not legacy liabilities |
A transfer of substantially all of the company's business requires a special shareholder resolution under 상법 제374조; contracts often need individual counterparty consent to assign.
| Approval needed | Special resolution of both companies' shareholders (상법 제522조) |
| Liabilities transferred | All rights and obligations transfer by operation of law |
| Speed | Slowest — creditor objection period required |
| Typical use | Strategic full integration, often with share swap |
Merging companies must give creditors at least one month to raise objections before the merger takes effect (상법 제527조의5); this period cannot be shortened by agreement.
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.
⚠ Indemnification claim periods are set by contract, not by default law
Unlike statutory limitation periods, the window during which a buyer can bring an indemnification claim for a breach of representations is whatever the share purchase agreement specifies. Sellers who do not negotiate a clear survival period can face exposure for far longer than they expect; buyers who accept a short survival period may lose the ability to claim once problems surface.
스타트업M&A | From Initial Advisory to Post-Closing Support
We review the commercial terms already discussed (term sheet or LOI) and advise on which structure — share deal, asset deal, or merger — best fits the client's objectives and risk tolerance.
For a buyer, we coordinate legal due diligence covering corporate records, cap table, IP, contracts, and employment matters, and flag issues that should affect price or deal terms. For a seller/founder, we help prepare a clean data room in advance to avoid delays and value erosion during diligence.
We draft or review the share purchase agreement, merger agreement, or asset purchase agreement, along with disclosure schedules, and negotiate representations, warranties, indemnification caps, and escrow terms on the client's behalf.
We prepare board resolutions and shareholder meeting materials required for the chosen structure, and confirm the applicable approval thresholds and any required creditor notice procedures are properly followed (상법 제522조, 상법 제527조의5).
We manage signing and closing logistics, including escrow arrangements and required regulatory filings, and remain available for post-closing matters such as indemnification claims or earn-out disputes that arise during the survival period.
스타트업M&A | How Fees Are Calculated for M&A Advisory
Fees for structuring advice and initial review of a term sheet or LOI are typically calculated based on the complexity of the proposed deal and the time required, rather than a flat rate, since a simple share deal and a multi-party merger require very different amounts of work.
For document drafting, negotiation, and closing support, fees are generally scoped based on deal size, number of counterparties, and whether cross-border elements or regulatory filings are involved.
Diligence engagements are usually billed based on the scope of review requested (full legal diligence versus a focused review of specific risk areas such as IP or employment) and the size of the target's data room.
Some engagements include a fee component contingent on successful closing of the transaction; where this applies, the structure and triggers are agreed with the client in advance and set out in the engagement letter.
Separate costs such as corporate registry fees, notarization, or third-party valuation reports are billed as incurred and are not included in the advisory or transaction fee.
※ Costs vary depending on case complexity and specific circumstances; exact fees will be provided during consultation. No specific outcome is guaranteed.
