A handful of family-run conglomerates spanning agribusiness, retail, and telecoms dominate the SET index, and gold carries a cultural weight in Thai households that few other assets match.
0%capital gains tax for individuals on SET shares
49%general foreign ownership limit
NVDRthe workaround when foreign room runs out
THB 300,000Thai ESG deduction cap through 2026
Capital
Bangkok
Currency
Thai baht
Main exchange
Stock Exchange of Thailand (SET)
Regulator
Securities and Exchange Commission Thailand
How people invest in Thailand
Gold shops and gold savings accounts are a genuine mass-market investment, alongside bank-distributed mutual funds, SET equities, and property; retail brokerage growth has been steady but less explosive than in Indonesia or Vietnam.
GoldSET equitiesBank mutual fundsReal estate
Getting access
Residents and international investors face completely different mechanics here, so they are set out separately rather than blended into one set of instructions.
Living in Thailand
Opening an account as a resident
Thailand does not tax individuals on gains from SET-listed shares, and it runs an unusually generous set of tax-deductible fund schemes designed to pull savings into the market.
Open an account with a SET member broker, linked to a Thai bank account.
Trade the SET and the mai board for smaller companies, in baht. Settlement is T+2.
Capital gains on SET-listed shares are exempt from personal income tax for individuals — the foundation of retail equity investing here.
Dividends are taxed, with the option of a final withholding or inclusion in your personal income tax return with a credit. Which is better depends on your marginal rate.
Use the deductible fund schemes deliberately. Thai ESG fund investment of up to 30% of assessable income is deductible, capped at THB 100,000 — but from 1 January 2024 to 31 December 2026 the cap is raised to THB 300,000 and the holding requirement cut from eight years to five.
That raised THB 300,000 cap and shortened five-year hold is a time-limited window running to the end of 2026. Schemes like this are policy instruments with expiry dates, and treating them as permanent features is how people miss them.
International
Investing in Thailand from outside
Thailand caps foreign ownership, and its answer to that problem is a genuinely distinctive instrument that every investor here needs to understand.
The Foreign Business Act limits foreign shareholding in a Thai company to 49% of issued and paid-up capital, with tighter limits in specific sectors — commercial banks are capped at 25%.
When a company's foreign room is full, foreign investors buy NVDRs instead. Non-Voting Depositary Receipts were introduced by the SET in 2001 and are issued by Thai NVDR Company Limited, a wholly owned SET subsidiary.
Understand what an NVDR gives you: the same financial benefits as an ordinary share — dividends, rights issues, capital returns — but no vote, except in exceptional circumstances such as a delisting.
For most individuals an offshore Thailand ETF removes the ownership-limit question entirely.
NVDRs are the reason Thailand's ownership caps do not make popular stocks unbuyable, unlike Vietnam where the equivalent workaround does not exist. It is the single most practically useful feature of this market for foreign investors.
What you can actually buy
Thailand's market has an old-economy weighting — banks, energy, retail and tourism-linked names — and a tax code that pushes savings towards specific funds.
SET-listed equities
Both
Weighted towards banks, energy and consumer names, with meaningful exposure to tourism through several sectors at once.
The local mechanic: Gains are untaxed for individuals; dividends are taxed. Foreign buyers hitting the ownership cap switch to NVDRs and give up the vote.
NVDRs
International
Depositary receipts issued by a SET subsidiary that carry the economics of a share without the vote.
The local mechanic: They trade at the same price as the ordinary share and solve the foreign-room problem. The cost is governance participation — which matters more in some holdings than others.
Thai ESG and retirement funds
Residents
Tax-deductible fund schemes designed explicitly to channel household savings into domestic markets.
The local mechanic: The deduction is real and the lock-up is the price. The current THB 300,000 cap with a five-year hold runs only to the end of 2026 — after that the cap reverts to THB 100,000 and the hold lengthens.
Property
Both
Foreigners can own condominium units outright within a building-level foreign quota, but cannot own land.
The local mechanic: The condominium foreign quota is a hard cap per building. Structures marketed as giving foreigners land ownership rely on arrangements that do not survive scrutiny.
The fund and ETF route
Thailand's fund industry is shaped almost entirely by the tax-deductible schemes, which is unusual.
Vehicle
Type
For
Notes
Thai ESG funds
Open-ended, deductible
Residents
Up to 30% of assessable income, capped at THB 300,000 through 2026 with a five-year hold, reverting to THB 100,000 and a longer hold afterwards.
Retirement mutual funds
Open-ended, deductible
Residents
The longer-horizon deductible scheme, with its own limits and conditions.
SET-listed ETFs
Listed ETF
Both
A small listed fund market — liquidity is the constraint rather than availability.
Offshore Thailand ETFs
Listed ETF
International
Removes the ownership-cap and NVDR question entirely for foreign individuals.
Thailand's private capital market is dominated by large family conglomerates rather than by independent venture funds.
Corporate venture arms of the major conglomerates are the most significant source of startup funding.
The mai board provides a domestic listing route for smaller companies.
Foreign participation in private companies runs into the same Foreign Business Act limits that shape the listed market, and the structuring around it is a legal exercise rather than a formality.
Thailand exempts share gains and taxes dividends, then uses deductible funds as the main policy lever.
What
Rate
Applies to
Capital gains, SET-listed shares
Exempt
Individuals
Dividends
Withholding or return inclusion
Choice depends on your marginal rate
Thai ESG deduction
Up to 30% of assessable income
Capped at THB 300,000 to 31 Dec 2026, then THB 100,000
Thai ESG holding period
5 years
For the 2024–2026 window; otherwise 8 years
Foreign ownership limit
49%
General; 25% for commercial banks
Thailand has also moved on the taxation of foreign-sourced income remitted by tax residents, which matters a great deal to expatriates and to Thais with offshore holdings — take advice on that specifically rather than assuming the older remittance treatment still applies. This is general information rather than tax advice.
Risks worth pricing in
International
What international investors should weigh
Thailand is more accessible than its ownership caps suggest, and the risks lie elsewhere:
NVDRs cost you the vote. They solve the ownership-limit problem cleanly on economics. In companies where governance is the concern, holding an instrument with no vote is not a neutral choice.
The market is tourism-exposed in more places than it looks. Tourism transmits into retail, transport, property and banking simultaneously. Sector diversification within Thailand provides less protection from that cycle than the labels imply.
Political discontinuity is a recurring feature. Thailand has experienced repeated abrupt changes of government. Markets have absorbed these, and it remains a persistent risk premium rather than a one-off.
An ageing population without high income. Thailand is ageing faster than its income level would normally imply, which constrains the long-run domestic demand story that underpins many regional allocations.
Residents
What domestic investors should weigh
The Thai schemes are genuinely valuable and they come with conditions people discover late:
The enhanced ESG window closes at the end of 2026. The THB 300,000 cap and five-year hold are time-limited. After that the cap drops to THB 100,000 and the holding requirement lengthens. Anyone planning around the current terms should know the clock is running.
Breaking the holding period claws back the relief. Selling deductible fund units early does not just forfeit future benefit — it can require repaying the tax you already saved, with interest. The deduction is a loan against your future behaviour.
Deductible does not mean good. The tax relief is certain and the investment return is not. Fund selection within the scheme still matters, and the relief has a way of stopping that conversation before it starts.
Household debt is high. Thai household leverage is elevated by regional standards. Investing on borrowed money in that context compounds a risk that is already present at the national level.
How the market got here
Thailand's market was rebuilt after the crisis that began there, and its distinctive institutions date from that recovery.
1975The Stock Exchange of Thailand begins trading.
1992The Securities and Exchange Commission is established.
1997The devaluation of the baht triggers the Asian financial crisis.
1999The mai board opens for smaller and growth companies.
2001NVDRs are introduced, letting foreign investors take economic exposure beyond the ownership caps.
2023The Thai ESG fund scheme is introduced in November with a THB 100,000 deduction cap.
2024The Thai ESG cap is raised to THB 300,000 and the holding period cut to five years, for a window running to the end of 2026.
Trends shaping Thailand
Regional investing patterns that show up strongly in Thailand — read the full analysis in investing trends.
Not on SET-listed shares — gains are exempt from personal income tax for individuals. Dividends are taxed, either by final withholding or by inclusion in your tax return with a credit, and which is better depends on your marginal rate.
What is an NVDR?
A Non-Voting Depositary Receipt, introduced by the SET in 2001 and issued by Thai NVDR Company Limited, a wholly owned SET subsidiary. It gives foreign investors the same financial benefits as an ordinary share — dividends, rights issues — without a vote, except in exceptional cases such as a delisting. It exists so that foreign ownership limits do not make popular stocks unbuyable.
What are the foreign ownership limits?
The Foreign Business Act generally limits foreign shareholding to 49% of a Thai company's issued and paid-up capital, with tighter caps in specific sectors — commercial banks are limited to 25%. When the foreign room in a stock is exhausted, foreign buyers use NVDRs instead.
How much can I deduct with Thai ESG funds?
Up to 30% of assessable income, capped at THB 100,000 under the base scheme. From 1 January 2024 to 31 December 2026 the cap is raised to THB 300,000 and the required holding period is cut from eight years to five. That enhanced window expires at the end of 2026, so the current terms are not permanent.
What happens if I sell a deductible fund early?
You can be required to repay the tax relief you already claimed, potentially with interest, as well as losing future benefit. The deduction is effectively conditional on holding for the full period, which is why the shortened five-year requirement in the current window matters so much.
Can foreigners buy property in Thailand?
Condominium units, yes — outright, but within a foreign ownership quota applied at the level of each building. Land, no. Structures marketed to foreigners as a route to land ownership rely on arrangements that do not hold up under scrutiny.
Rates, thresholds and regulatory references on this page were last verified on . Thailand's rules are moving quickly — confirm anything you intend to act on against a primary source or a qualified adviser. Nothing here is investment, legal or tax advice.
