1. The Thai M&A Landscape
Thailand’s M&A market has shifted meaningfully over the past several years, from a landscape dominated by large-cap, sponsor-led transactions toward a broader mid-market that includes founder-owned businesses, regional roll-ups, and cross-border strategic acquisitions. The buyer universe active in Thailand today spans several distinct groups: regional and global strategics pursuing China+1 supply-chain diversification, private equity and growth-equity funds targeting consumer, healthcare, and industrial platforms, family offices making direct control investments, and a growing pool of Thai conglomerates consolidating adjacent sectors.
Deal activity remains concentrated in a handful of sectors — consumer and retail, healthcare, industrials and logistics, financial services, and increasingly technology and digital infrastructure — reflecting both domestic consumption trends and Thailand’s positioning within regional supply chains. Energy, tourism-linked assets, and food & beverage also see recurring deal flow, often tied to family succession rather than pure growth capital.
A defining feature of the Thai mid-market is that a large share of acquisition targets remain privately held, closely controlled by founding families, and thinly professionalised from a financial-reporting standpoint. This has structural implications for every stage of a transaction — valuation, diligence, negotiation, and integration — that are addressed throughout this guide. Buyers approaching Thailand for the first time, whether domestic or cross-border, are increasingly working with structured, professionally advised processes rather than the more informal, relationship-driven transactions that characterised the market a decade ago, though the latter still plays a meaningful role in how deals originate.
2. Legal and Regulatory Framework
The starting point for any acquisition in Thailand is understanding what a buyer is legally permitted to own. The Foreign Business Act (FBA) restricts foreign ownership — generally defined as 50% or more foreign shareholding — in a defined list of business activities, spanning agriculture, certain services, retail and wholesale trade below specified capital thresholds, and other categories deemed sensitive. A foreign buyer seeking majority or full ownership of a target operating in a restricted activity must either obtain a Foreign Business License, structure the investment through Board of Investment (BOI) promotion (which can override FBA restrictions for promoted activities), or rely on a treaty exemption where one applies.
Nominee shareholding arrangements — structuring around the FBA through Thai nominee shareholders without genuine economic participation — carry material legal risk and have been subject to increased regulatory scrutiny. This guide does not treat nominee structures as a viable planning tool; buyers should structure ownership within the actual bounds of the FBA, BOI promotion, or licensed exemptions.
BOI-promoted companies carry their own considerations independent of the FBA. Promotion status typically comes with tax holidays, import duty exemptions, and other privileges tied to the specific promoted activity, but a change of control or change of major shareholder in a promoted entity generally requires BOI notification or consent to preserve those privileges. This is a frequent diligence item that is easy to overlook when a target’s attractiveness is partly built on its BOI incentives.
Beyond the FBA and BOI framework, sector-specific restrictions apply to land ownership (foreign entities generally cannot hold Thai land directly, which affects targets with material real estate on balance sheet), financial services (Bank of Thailand oversight and ownership caps), telecommunications (NBTC licensing), and other regulated industries. Establishing which of these apply is typically the first structuring question in any Thai transaction, well ahead of valuation or negotiation.
Where a foreign business license is required for a restricted activity, the acquiring entity must bring in minimum capital of at least THB 3 million, or an average of 25% of the entity’s estimated expenses over three years (whichever is higher), for each restricted activity being licensed. This capital requirement should be factored into deal funding and closing mechanics alongside the FBL application timeline, since the license is a precondition to commencing the restricted activity rather than a formality that can be finalised post-close.
3. Deal Structures: Asset vs. Share Purchase
Share purchases
Share deals — acquiring the equity of the target entity directly — are the dominant structure in Thai M&A, particularly for founder-owned businesses where the seller prefers a clean exit from the legal entity and its full history. A share purchase transfers the company as a whole, including all existing liabilities, contracts, licenses, and employees, without the need to re-title assets or re-negotiate third-party consents. This continuity is often what sellers value most, and it is also why disciplined due diligence matters more in a share deal than in an asset deal — the buyer inherits everything, seen and unseen.
Asset purchases
Asset deals — acquiring specific assets and liabilities out of the target rather than the legal entity itself — are used selectively in Thailand, typically where the buyer wants to ring-fence known or suspected liabilities (tax exposure, litigation, undocumented related-party arrangements), where only part of a business is being acquired, or where FBA structuring makes a fresh entity preferable to inheriting an existing one. Asset deals require re-titling of transferred assets, renegotiation of key contracts and licenses that may not automatically transfer, and separate stamp duty and VAT treatment on the assets conveyed.
Choosing between them
The choice is driven less by tax optimisation alone and more by the risk profile of the target. Businesses with clean, well-documented histories and valuable licenses or contracts that would be costly to re-establish tend toward share deals. Businesses with real or suspected legacy liabilities, informal accounting histories, or where the buyer only wants a defined subset of operations tend toward asset deals, accepting the transactional friction of re-titling in exchange for a cleaner liability perimeter.
4. Valuation in the Thai Context
The multiples used to value a private Thai target are, in almost every case, drawn from public-market, minority-stake, freely-tradable comparables. None of those conditions typically hold for a private company acquisition, so a public comparable multiple is a starting reference point, not a direct valuation output. Three adjustments are usually required before applying a public multiple to a private Thai company: (i) normalising the earnings or EBITDA base for one-off items and accounting policy differences; (ii) selecting the appropriate multiple for the target’s actual balance-sheet and cash-flow profile; and (iii) applying discounts or premia for marketability, control, size, and company-specific risk.
Private transaction databases in Thailand — whether official filings or commercial data services — suffer from thin and inconsistent disclosure, which limits their usefulness as a primary valuation input. In practice, public comparables combined with a disciplined discount stack produce a more defensible and replicable valuation than attempting to source comparable private transaction multiples directly. SEC tender offer filings remain a useful secondary check, since Thai change-of-control transactions involving listed companies disclose an actual control premium that can be used to sense-check the discount-for-lack-of-control assumption used elsewhere in the analysis.
Typical ranges seen in Thai private-company and SME valuation practice are set out below.
| Discount / adjustment | Typical range (Thai private-company context) | Application notes |
| Discount for Lack of Marketability (DLOM) | 20–30%, up to 35% in thinly-traded sectors | Larger where no defined exit path exists; smaller where an active trade-sale process is already underway |
| Discount for Lack of Control (DLOC) / minority discount | 10–25% | Applies only to minority stakes; if valuing 100% control off a minority-traded public comp, back out an equivalent control premium (commonly 20–40% in Thai change-of-control transactions) instead |
| Size / small-cap discount | 10–20% | For targets materially smaller than the smallest listed peer in the comp set |
| Key-man / ownership-concentration discount | 5–15% | Reflects founder-operator dependency, customer or supplier concentration, common in Thai family-owned SMEs |
| Aggregate typical range | 30–50% off the relevant public multiple | A starting range only — apply after normalising for one-off items and aligning accounting policy, then adjust further for company-specific quality |
Source: Bangkok Partners analysis. Ranges are illustrative starting points for judgement, not a mechanical formula.
These ranges should inform judgment rather than substitute for it. Discounts should be applied additively with discipline: compounding the high end of every discount will typically understate value for a target with genuine structural advantages — a defensible market position, multi-year contracts, or a credible management succession plan — while applying only the low end will overstate value for a business that is thinly capitalized, customer-concentrated, or owner-dependent. Where the reference public comparable itself sits at a sector extreme, a second-tier or mid-cap peer within the same industry is generally more appropriate than the sector’s single richest name, as scale, contract structure, and brand recognition rarely transfer proportionally to a smaller private target.
A related discipline is separating the multiple from the growth assumption feeding it. A public comparable’s current multiple reflects the market’s forward-looking growth and risk expectations for that specific company; it should not be applied to a private target’s own, separately derived growth forecast without checking the two are consistent. Where a target’s recent performance reflects a temporary or cyclical uplift rather than a structural improvement, near-term forecasts should be normalised back toward a sustainable run rate before being capitalised, rather than extrapolated forward as if the uplift were durable.
5. Due Diligence: What’s Different in Thailand
Financial, legal, and tax due diligence in Thailand follows the same broad categories as elsewhere, but the findings differ in kind because informal practices remain common, particularly among family-owned SMEs. Related-party transactions — leases, management fees, supplier or customer relationships with entities controlled by the same family — are frequent and not always priced at arm’s length, which can distort both historical earnings and the go-forward cost base once the relationship is unwound or renegotiated post-close. Targets with annual turnover of THB 200 million or more that have related-party dealings are required to file a transfer-pricing disclosure form alongside their annual corporate income tax return; reviewing recent filings (or confirming their absence) is a useful, low-effort diligence step, since non-filing or incomplete filing can point to related-party exposure that has not yet surfaced elsewhere in the target’s records.
Understated revenue or profit for tax purposes, while diminishing in prevalence as enforcement has tightened, still surfaces in smaller private targets and requires careful reconciliation between management accounts, tax filings, and bank records. Buyers should expect some gap between the earnings picture presented for negotiation purposes and the earnings picture reflected in historical tax filings, and should diligence that gap explicitly rather than accepting either figure at face value.
Land title verification is a distinct and material diligence item given how much value is often embedded in real estate on a Thai company’s balance sheet. Title type (chanote versus lesser forms of documented possession), encumbrances, and — where the buyer is foreign — the restrictions on direct foreign land ownership all need to be resolved as part of structuring, not left until after signing.
Labor law exposure — severance obligations, undocumented informal employment arrangements, and entitlements that accrue under Thai labour protection law — is another area that is frequently under-provisioned in target financial statements. Statutory severance pay is mandatory on employer-initiated termination and scales with tenure, ranging from 30 days’ wages for employees with 120 days to 1 year of service up to 400 days’ wages for employees with 20 or more years of service; Thailand has no ‘first in, last out’ requirement, giving the employer flexibility in selecting which roles to cut, but the accrued severance liability itself cannot be contracted away and should be quantified explicitly against the target’s actual tenure profile rather than assumed from the balance sheet provision alone. Family-entangled balance sheets, where personal and business assets or liabilities are commingled, round out the diligence gaps that most often cause repricing or termination after a letter of intent has been signed. Front-loading these specific checks, rather than treating them as standard-form diligence line items, materially reduces the risk of late-stage surprises.
6. Regulatory Approvals and Filings
Depending on the target’s sector, ownership structure, and size, a Thai acquisition may need to clear one or more regulatory approvals before or shortly after closing. The table below summarises the principal triggers and the authorities involved; timelines for each vary by case complexity and should be built into the transaction schedule from the outset rather than treated as a formality.
| Trigger | Authority / regime | What it covers |
| Foreign ownership above 49% | Foreign Business Act — Ministry of Commerce / DBD | Restricted-list activities require an FBL, BOI promotion, or a treaty exemption (e.g. US-Thai Treaty of Amity) before majority foreign ownership is permitted |
| Market share / turnover thresholds | Trade Competition Commission (TCC) | Merger notification or approval where the transaction meets prescribed asset, turnover, or market-concentration thresholds |
| Target holds BOI promotion | Board of Investment | Change-of-control or change-of-shareholder consent to preserve tax and non-tax privileges attached to the promoted entity |
| Cross-border payment / capital movement | Bank of Thailand | Notification or filing tied to inbound investment funds, outbound purchase consideration, and repatriation of proceeds |
| Target is SET-listed | Securities and Exchange Commission (SEC) / SET | Mandatory or voluntary tender offer rules, disclosure obligations, and shareholder approval requirements |
| Regulated sector target | Sector regulator (e.g. BOT for financial institutions, NBTC for telecoms, DOL for land) | Sector-specific ownership caps, licensing transfer, and fit-and-proper approvals |
Source: Bangkok Partners analysis, based on the regulatory regimes generally applicable to Thai M&A transactions.
Merger control review under the Trade Competition Commission is the approval most commonly underestimated in timeline planning, as thresholds are based on turnover and market concentration rather than deal value alone, and can apply even to transactions that appear modest in absolute size. Where a target holds BOI promotion, sector licenses, or is SET-listed, the applicable approval chain should be mapped during early-stage diligence so that it can run in parallel with commercial negotiation rather than becoming a closing bottleneck discovered late in the process.
7. Tax Structuring
Deal structure and tax treatment are closely linked in Thailand. A share sale is generally subject to capital gains treatment for the seller (with specific rules depending on whether the seller is a corporate or individual, and resident or non-resident), while an asset sale exposes the selling entity to corporate income tax on the gain within the entity itself, in addition to VAT on the transfer of most business assets and stamp duty on relevant instruments. These differences materially affect after-tax proceeds and are a common source of price-gap disputes between buyer and seller expectations.
Withholding tax applies to a range of cross-border payments connected with a transaction — dividends, interest, royalties, and certain service fees — with rates reduced where a double taxation agreement (DTA) between Thailand and the buyer’s home jurisdiction applies. For cross-border buyers, including Canadian acquirers, structuring the holding entity to access an appropriate DTA, while remaining within genuine substance requirements, is a standard part of pre-signing structuring rather than a post-close consideration.
Stamp duty applies to share transfer instruments and certain other transaction documents, and VAT considerations differ meaningfully between share and asset deals, as noted above. The most common structuring mistakes seen in cross-border Thai transactions are treating tax structuring as a late-stage, documentation-only exercise rather than an input into deal structure chosen at the outset, and underestimating the withholding tax leakage on post-close intercompany payments (management fees, royalties, financing) that were not modelled into the original return case.
The standard corporate income tax rate is 20% of net profit. A stepped rate applies to qualifying SMEs — companies with paid-up capital not exceeding THB 5 million and revenue not exceeding THB 30 million in the relevant accounting period — as set out below. Target companies structured to sit just under these thresholds warrant a check on whether that positioning is a genuine reflection of the business or an artefact of related-party revenue splitting, since either the acquisition itself or a post-close restructuring will typically push the combined entity into the standard rate.
| Net profit (THB) | CIT rate |
| 0 – 300,000 (SME only) | Nil |
| 300,001 – 3,000,000 (SME only) | 15% |
| Standard rate (all companies, all profit levels above SME bands) | 20% |
Source: Thai Revenue Code; rates current as of this guide’s publication and subject to change.
Pillar Two and the global minimum tax
Thailand enacted its Pillar Two top-up tax regime by Emergency Decree, effective for fiscal years beginning on or after 1 January 2025, applying a 15% global minimum tax to in-scope multinational enterprise groups — those with consolidated group revenue of at least EUR 750 million in at least two of the four preceding accounting periods. This is directly relevant to Thai M&A in two situations: where the acquirer is itself part of a qualifying multinational group acquiring a Thai target, and where the Thai target (pre- or post-acquisition) becomes a constituent entity of such a group.
The regime interacts specifically with BOI and IBC tax incentives. A Thai entity benefiting from a corporate income tax exemption or reduction — the core mechanism of most BOI packages — can see its jurisdictional effective tax rate fall below the 15% Pillar Two threshold, triggering a top-up tax that claws back some or all of the value of the original incentive at the group level. For buyers evaluating a BOI-promoted target, or planning to fold a Thai acquisition into a large existing group, the after-tax return case should be modelled on a post-top-up-tax basis rather than assuming the promoted rate holds at the consolidated group level. This is a live area of policy development in Thailand, including a proposed Qualified Refundable Tax Credit mechanism intended to preserve some incentive value under the new regime, and should be checked against current guidance at the time of a transaction rather than assumed static.
8. Financing the Transaction
Domestic Thai banks provide acquisition financing, though availability and terms depend heavily on the borrower’s existing banking relationships, the quality of the target’s cash flows, and whether the acquiring entity has a Thai operating history. Onshore lending to a newly formed foreign acquisition vehicle with no operating track record in Thailand is materially harder to secure than financing extended to an established Thai group making a bolt-on acquisition.
Vendor financing and earn-out structures are common in the Thai mid-market, particularly where there is a valuation gap between buyer and seller expectations, or where the seller’s continued involvement post-close is valuable to the buyer. Earn-outs tied to post-close performance also serve as a practical bridge where diligence has not fully resolved uncertainty around the sustainability of recent earnings.
Foreign buyers financing a Thai acquisition from offshore capital should plan for Bank of Thailand notification requirements tied to inbound investment funds and, later, outbound repatriation of proceeds or dividends. These are procedural rather than restrictive in most cases, but timelines should be built into the closing mechanics rather than assumed to be instantaneous.
9. Negotiation and Documentation
The Share Purchase Agreement (SPA) or Share and Asset Purchase Agreement, together with any Shareholders’ Agreement (SHA) where the buyer is not acquiring 100%, carry the terms that matter most in a Thai transaction. Representations and warranties customary in the Thai market broadly track international norms — title, capacity, financial statements, tax, litigation, compliance, material contracts — though the depth of warranty coverage sought by buyers is often higher than a seller’s initial draft anticipates, reflecting the diligence gaps discussed earlier in this guide.
Indemnity caps, baskets, and survival periods are negotiated points that should be calibrated to the specific diligence findings on a given deal rather than defaulted to market-standard templates; a target with material tax or land-title uncertainty warrants a longer survival period and lower basket on those specific representations, even where general warranties follow a shorter, more conventional structure. Escrow arrangements — holding back a portion of consideration against identified or potential claims — are widely used as a practical alternative to relying solely on a seller’s post-close covenant to pay.
Negotiating with founder-owned Thai businesses carries a cultural dimension that is easy to underweight in a purely commercial read of the process. Relationship-building and an unhurried pace ahead of formal negotiation, respect for the seller’s role and legacy in the business, and attention to how proposals are communicated (directness that would be unremarkable in some markets can read as adversarial in Thailand) materially affect deal outcomes. The most experienced buyers in this market treat the relationship and the terms as connected inputs to the same negotiation, not sequential stages.
10. Post-Merger Integration
Integration failure in Thai acquisitions tends to cluster around a small number of recurring issues rather than a broad, undifferentiated set of risks. Retaining key staff through and after a change of control is the most common — where a business has been built around a small number of relationship-holders (with customers, suppliers, or regulators), losing those individuals in the months after closing can erode the value the acquisition was underwritten on, regardless of how well the underlying business otherwise performs.
Managing the founder’s transition period requires explicit planning rather than an assumption that a standard consulting or non-compete arrangement will suffice. Where the founder remains genuinely central to customer relationships or operations, a longer and more structured transition — sometimes extending well beyond the terms initially proposed by either side — tends to preserve more value than a clean, rapid handover.
Aligning the target’s financial reporting to the acquirer’s standards is typically a longer process than anticipated, particularly where the target’s historical books reflected the informal practices discussed in the due diligence section of this guide. Buyers should expect a multi-quarter transition to fully reliable, acquirer-standard reporting rather than an immediate switch at closing.
Finally, the practical realities of operating a newly acquired Thai entity remotely — time zone, language, and the degree to which decisions genuinely need local presence versus can be run from a head office — shape how quickly a buyer can identify and correct problems post-close. Transactions that have preserved the most value tend to combine a clear, mutually understood integration plan agreed before signing with a realistic level of on-the-ground presence in the first six to twelve months, rather than assuming the acquired business can be managed at the same operating cadence as a long-held domestic subsidiary.
Where integration involves relocating expatriate staff to Thailand — a replacement finance lead, an integration manager, or the buyer’s own operating team — Thailand’s Long-Term Resident (LTR) visa is worth evaluating alongside a standard non-immigrant visa and work permit. For qualifying highly skilled professionals, the LTR carries a flat 17% personal income tax rate in place of the standard progressive scale up to 35%, an exemption from the usual requirement to employ four Thai nationals for every expatriate hired, and a multi-year visa term that removes the administrative burden of annual renewals during a period when management attention is already stretched by the integration itself.
Appendix: Glossary of Thai M&A Terms and Regulatory Bodies
Regulatory bodies
SEC (Securities and Exchange Commission) — regulates listed companies, tender offers, and capital markets disclosure
SET (Stock Exchange of Thailand) — the national stock exchange
DBD (Department of Business Development) — company registration and corporate filings, under the Ministry of Commerce
BOI (Board of Investment) — grants and administers investment promotion privileges
TCC (Trade Competition Commission) — merger control and competition regulation
BOT (Bank of Thailand) — central bank; oversees financial institutions and cross-border capital flows
NBTC (National Broadcasting and Telecommunications Commission) — telecom sector regulator
DOL (Department of Lands) — land title registration and transfer
Key terms
FBA — Foreign Business Act, the primary statute restricting foreign ownership of specified business activities
FBL — Foreign Business License, issued under the FBA to permit majority foreign ownership of a restricted activity
Chanote — the highest and most secure form of Thai land title
DLOM / DLOC — Discount for Lack of Marketability / Discount for Lack of Control, valuation adjustments applied to private or minority-stake interests
DTA — Double Taxation Agreement, a bilateral treaty reducing withholding tax on cross-border payments between treaty jurisdictions
SPA / SHA — Share Purchase Agreement / Shareholders’ Agreement, the principal transaction and governance documents in a Thai share deal
Primary data and disclosure sources
SET and SEC public disclosure portals — listed company filings, tender offer documents, and financial statements
DBD e-Filing / company registration records — basic corporate filings for private Thai companies, though disclosure depth is limited relative to listed company filingsThis guide is intended for general informational purposes and does not constitute legal, tax, or investment advice. Buyers and sellers should obtain independent legal, tax, and financial advice specific to their transaction before acting on any of the frameworks describ
