Real estate development in Thailand is subject to a multi-layered tax regime that combines national corporate levies, transaction-specific duties, and sector-targeted incentives administered by the Board of Investment (BOI). Developers who treat Thai property taxation as a single flat charge routinely underestimate their effective tax burden by a material margin. This article maps the full tax architecture - from land acquisition through construction, sale, and leasehold structuring - and identifies the incentive pathways that can materially reduce that burden for qualifying projects.
The analysis covers: the principal taxes applicable at each development stage; the BOI promotion framework and its practical eligibility conditions; common structural mistakes made by foreign developers; pre-sale and post-sale planning tools; and the enforcement posture of the Thai Revenue Department and local authorities.
Thailand does not have a single "developer tax." Instead, a developer operating in Thailand encounters at least five distinct fiscal instruments, each governed by a separate statute and administered by a different authority.
Corporate income tax (CIT) is imposed under the Revenue Code (ประมวลรัษฎากร) at a standard rate of 20% on net profits. Developers structured as Thai limited companies or public companies pay CIT on profits derived from property sales, rental income, and service fees. The Revenue Department (กรมสรรพากร) administers CIT and requires half-year advance payments under Section 67 bis of the Revenue Code, meaning developers must estimate and remit tax mid-year even before final accounts are closed.
Specific business tax (SBT) under Section 91 of the Revenue Code applies at 3.3% (including the municipal surcharge) on gross receipts from the sale of immovable property by a business operator. SBT replaces value-added tax (VAT) for most property sales and is calculated on the higher of the registered sale price or the appraised value set by the Treasury Department (กรมธนารักษ์). This distinction matters: a developer who sells below appraised value still pays SBT on the appraised figure, not the contracted price.
Transfer fee is levied at 2% of the appraised value of the property at the time of registration of ownership transfer at the Land Department (กรมที่ดิน). By market convention, this fee is often split between buyer and seller, but the legal obligation rests with the transferor unless the contract specifies otherwise.
Land and Building Tax (LBT), introduced under the Land and Building Tax Act B.E. 2562 (2019), replaced the former house and land tax and local development tax. LBT is assessed annually by local administrative organisations (องค์กรปกครองส่วนท้องถิ่น) on the appraised value of land and structures. For commercial and development use, rates range from 0.3% to 1.2% per annum depending on appraised value brackets. Vacant or unused land is taxed at a progressively higher rate, starting at 0.3% and increasing by 0.3 percentage points every three years up to a ceiling of 3%, creating a direct financial penalty for land banking without active development.
Withholding tax (WHT) under Section 50 and Section 69 bis of the Revenue Code applies when a juristic person purchases property from another juristic person or from an individual. The purchaser must withhold 1% of the appraised value or the contracted price, whichever is higher, and remit it to the Revenue Department within seven days of the month following the transaction. For foreign developers receiving management fees or royalties from Thai subsidiaries, WHT rates of 10% to 15% apply depending on treaty coverage.
The acquisition phase is where many foreign developers first encounter unexpected fiscal friction. Purchasing land through a Thai company is the standard structure for foreign-controlled development, since the Land Code (ประมวลกฎหมายที่ดิน) prohibits foreigners from directly owning land in most categories.
At acquisition, the developer-company pays transfer fee (2% of appraised value) and, if the seller is a business operator disposing of property within five years of acquisition, SBT at 3.3%. If SBT does not apply - because the seller is an individual holding the land for more than five years - stamp duty under the Revenue Code applies instead at 0.5% of the higher of the contracted price or appraised value. SBT and stamp duty are mutually exclusive: only one applies to any given transaction.
A common mistake among international clients is to structure the acquisition as a share purchase of the land-holding company to avoid transfer fee and SBT at the asset level. While this approach can defer those charges, it transfers the entire corporate history - including latent tax liabilities, undisclosed encumbrances, and any prior non-compliance with the Revenue Code - to the acquirer. Thai tax due diligence on the target company must be thorough, covering at minimum the past five years of CIT filings, SBT returns, and LBT payment records.
A non-obvious risk at acquisition is the Treasury Department';s appraised value cycle. Appraised values are revised every four years. A developer who acquires land shortly before a revaluation cycle may find that the appraised value used for SBT, transfer fee, and LBT calculations increases substantially before the first unit is sold, compressing margins that were modelled on the pre-revision figures.
To receive a checklist on land acquisition tax structuring for real estate development in Thailand, send a request to info@vlolawfirm.com
The Board of Investment (คณะกรรมการส่งเสริมการลงทุน), operating under the Investment Promotion Act B.E. 2520 (1977) as amended, is the principal authority granting tax incentives to qualifying real estate projects. BOI promotion does not automatically apply to all property development; eligibility depends on project category, minimum investment thresholds, and compliance with sector-specific conditions.
Promoted activity categories relevant to real estate development include industrial estate development, special economic zone (SEZ) infrastructure, logistics facilities, data centres, and certain categories of tourism accommodation. Residential condominium development for general sale is not a BOI-promoted activity in the standard sense. This is a critical distinction: a developer building mixed-use projects must carefully delineate the promoted component (for example, a hotel or serviced apartment block) from the non-promoted component (residential units for sale) to avoid contaminating the incentive structure.
CIT exemptions granted under BOI promotion range from three to eight years depending on the project category and location. Projects located in Special Investment Promotion Zones - covering 20 provinces in the eastern, northern, and southern regions - receive an additional three-year CIT exemption on top of the base period. After the exemption period, a 50% CIT reduction for a further five years may apply to certain categories.
Import duty exemptions on machinery and raw materials used in promoted activities are available under Sections 28 and 29 of the Investment Promotion Act. For construction-intensive projects, this can represent a meaningful cost reduction on specialised equipment imported for the development phase.
Foreign ownership and work permit facilitation are ancillary benefits of BOI promotion. A BOI-promoted company may hold land for the promoted activity under Section 27 of the Investment Promotion Act, creating a legal pathway for foreign-controlled entities to own land that would otherwise be restricted under the Land Code. This is one of the most commercially significant aspects of BOI promotion for international developers and is frequently underutilised because applicants focus exclusively on the tax benefits.
The BOI application process requires submission of a project proposal, financial projections, and evidence of technical capacity. Processing time is typically 40 to 60 working days from submission of a complete application. Approval is conditional on commencing promoted activities within three years of the promotion certificate date. Failure to meet this condition results in revocation of the certificate and clawback of any benefits already utilised.
Practical scenario one: A Singapore-based developer acquires land in Chiang Rai province to build a boutique hotel and wellness resort. The project qualifies under BOI tourism accommodation category with a minimum investment of THB 500 million. The developer receives a seven-year CIT exemption (base five years plus two years for northern zone location), import duty exemption on hotel fit-out equipment, and the right to hold land through the BOI-promoted company. The effective tax saving over the exemption period, compared with a non-promoted structure paying 20% CIT, is substantial relative to the project';s projected net profit.
During the construction phase, the principal tax instrument is VAT at 7% (the standard rate under Section 80 of the Revenue Code, currently maintained at 7% by ministerial decree rather than the statutory 10%). Developers registered for VAT can claim input VAT credits on construction costs, materials, and professional services, provided the underlying supplies are VAT-registered and properly invoiced.
A frequent structural error is for a developer to establish a project company that is not VAT-registered because early-stage revenue is below the THB 1.8 million annual threshold. Once construction costs accumulate, the company cannot retrospectively claim input VAT on invoices issued before registration. The Revenue Department does not permit retroactive VAT registration for the purpose of recovering pre-registration input credits. Developers should register for VAT at the project company level before the first significant construction contract is signed.
Contractor withholding tax is an obligation that catches many foreign developers operating through Thai subsidiaries. When the developer-company pays a Thai contractor for construction services, it must withhold 3% of the payment under Section 3 of the Revenue Code Ministerial Regulations and remit it to the Revenue Department by the seventh day of the following month. Failure to withhold makes the developer jointly liable for the contractor';s tax obligation plus a 1.5% monthly surcharge on the unwithheld amount.
Transfer pricing becomes relevant when a foreign parent provides construction management services, design services, or financing to the Thai development company. The Revenue Department has applied transfer pricing rules under Section 71 bis of the Revenue Code since 2021, requiring related-party transactions to be priced at arm';s length and documented in a transfer pricing disclosure form submitted with the annual CIT return. Intercompany service fees that are not benchmarked against comparable market rates risk being disallowed as deductible expenses, increasing the Thai company';s taxable income.
Practical scenario two: A Hong Kong developer funds a condominium project in Phuket through a shareholder loan from the parent company at an interest rate of 8% per annum. The Revenue Department benchmarks comparable intercompany loan rates and determines that 4% is arm';s length. The excess 4% interest is disallowed as a deductible expense for the Thai company, increasing its CIT liability. Simultaneously, the 8% interest paid to the Hong Kong parent is subject to 15% WHT (reduced to 10% under the Thailand-Hong Kong double tax agreement), but the disallowed portion may be recharacterised as a dividend, attracting different WHT treatment.
To receive a checklist on construction-phase tax compliance for real estate developers in Thailand, send a request to info@vlolawfirm.com
The sale phase concentrates the largest single tax events for a developer. SBT at 3.3% on gross receipts is triggered at the point of ownership transfer registration, not at the point of contract signing or deposit receipt. This creates a timing mismatch for developers who collect pre-sale deposits and instalment payments over a construction period of 24 to 36 months: the SBT liability crystallises only when the unit is transferred, but CIT on accrued revenue may arise earlier depending on the accounting method used.
The Revenue Department';s guidance under the Revenue Code requires developers to recognise revenue for CIT purposes using the percentage-of-completion method for long-term construction contracts. This means that even before a single unit is transferred, the developer must recognise a proportion of the contracted sale price as taxable income in each accounting period, based on the proportion of construction costs incurred relative to total estimated costs. Developers who attempt to defer all revenue recognition to the transfer date risk Revenue Department reassessment and penalties under Section 22 of the Revenue Code.
Instalment sale structures are common in the Thai condominium market, where buyers pay 10% to 30% on booking, further instalments during construction, and the balance on transfer. Each instalment payment received is not itself subject to SBT at receipt, but the full contracted price (or appraised value if higher) becomes the SBT base at transfer. Developers must maintain detailed records of all pre-transfer receipts to reconcile against the SBT return filed at the Land Department.
Foreign buyer considerations add a further layer. When a foreign individual purchases a condominium unit, the remittance of foreign currency into Thailand must be documented through a Foreign Exchange Transaction Form (FET form) issued by a Thai commercial bank, confirming that the funds originated abroad. This is not a tax document per se, but it is a prerequisite for the foreign buyer to register ownership at the Land Department and for the developer to complete the transfer. Developers who fail to advise foreign buyers of this requirement face delayed transfers, which in turn delay SBT payment timing and can create cash flow mismatches.
Practical scenario three: A developer sells 200 condominium units in Bangkok at an average price of THB 8 million per unit, with a total contracted value of THB 1.6 billion. The Treasury Department';s appraised value for the units averages THB 7.5 million. SBT is calculated on the contracted price (being higher) at 3.3%, generating an SBT liability of approximately THB 52.8 million across all transfers. If 40 units are transferred in a single quarter, the developer must remit SBT for those units within 15 days of the end of that month. Failure to remit on time attracts a surcharge of 1.5% per month plus a penalty of up to twice the tax due under Section 89 of the Revenue Code.
Not all Thai real estate development exits through outright sale. Leasehold structures, real estate investment trusts (REITs), and property funds offer alternative monetisation paths with distinct tax profiles.
Long-term leasehold is the primary mechanism through which foreign investors hold interests in Thai real estate without owning land. A lease registered at the Land Department for up to 30 years (extendable by private agreement for further terms) is subject to stamp duty at 0.1% of the total lease value (rent multiplied by lease term) under the Revenue Code. Lease income received by the developer-lessor is subject to CIT as ordinary income. The lease registration fee at the Land Department is 1% of the total lease value, separate from stamp duty.
A non-obvious risk in leasehold structures is the treatment of key money (เงินกินเปล่า) - upfront lump-sum payments made by the lessee in addition to periodic rent. The Revenue Department treats key money as income in the year of receipt for CIT purposes, not as deferred income spread over the lease term. Developers who structure leasehold deals with large upfront key money payments to improve cash flow must account for the full CIT impact in the year of receipt.
Thai REITs (กองทรัสต์เพื่อการลงทุนในอสังหาริมทรัพย์) are regulated by the Securities and Exchange Commission (SEC) under the Trust for Transactions in Capital Market Act B.E. 2550 (2007) and SEC notifications. A REIT that acquires completed development assets from a developer triggers a transfer fee and SBT at the asset level (or stamp duty if the seller is not a business operator). However, the REIT itself is exempt from CIT on income distributed to unit holders, and unit holders pay a flat 10% WHT on distributions. For a developer holding a stabilised income-producing asset - a completed hotel, retail centre, or logistics facility - a REIT exit can be tax-efficient compared with a direct sale, particularly if the developer retains units in the REIT and benefits from the lower distribution tax rate.
Property funds (กองทุนรวมอสังหาริมทรัพย์) are an older vehicle now largely superseded by REITs for new structures, but existing property funds continue to operate. The tax treatment is broadly similar to REITs, with CIT exemption at the fund level and WHT on distributions.
Many underappreciate the interaction between the REIT exit and transfer pricing rules when the developer retains a property management contract with the REIT post-exit. Management fees paid by the REIT to the developer-manager must be at arm';s length and documented, or the Revenue Department may challenge the deductibility of those fees at the REIT level, reducing distributable income and affecting unit holder returns.
What is the most significant tax risk for a foreign developer entering Thailand for the first time?
The most acute risk is misclassifying the project company';s tax status and failing to register for VAT before construction begins. This results in permanent loss of input VAT credits on construction costs, which can represent 7% of total build cost - a material erosion of project economics. A secondary risk is underestimating the SBT base: the Revenue Department and Land Department use the Treasury Department';s appraised value as a floor, so a developer who prices units below appraised value still pays SBT on the higher appraised figure. Engaging a Thai tax adviser before the project company is incorporated - not after the first contract is signed - is the standard way to avoid both errors.
How long does BOI promotion approval take, and what happens if the project is delayed?
A complete BOI application is typically processed within 40 to 60 working days. The BOI may request additional information, which pauses the clock. Once a promotion certificate is issued, the developer must commence promoted activities within three years. If the project is delayed beyond that window - due to permitting, financing, or construction issues - the developer must apply for an extension before the three-year deadline. Extensions are granted on a case-by-case basis and require evidence of genuine progress. A lapsed certificate cannot be reinstated retroactively; the developer must file a new application, losing any benefits already accrued and restarting the exemption period calculation.
Is it better to sell development assets directly or exit through a REIT structure?
The answer depends on the asset type, the developer';s tax position, and the holding period. A direct sale of a completed income-producing asset triggers SBT at 3.3% on gross proceeds and CIT on the net gain. A REIT exit also triggers SBT and transfer fee at the asset level, but the developer may retain REIT units and receive distributions taxed at 10% WHT rather than 20% CIT on future income. For a developer with a high-value stabilised asset and a long intended holding period, the REIT structure is generally more efficient. For a developer seeking a clean exit with no ongoing exposure, a direct sale to a third party is simpler and avoids the regulatory complexity of SEC compliance. The decision should be modelled on actual projected cash flows, not on the headline tax rates alone.
Thailand';s real estate development tax regime rewards structured planning and penalises reactive compliance. The combination of SBT on gross receipts, CIT on accrued profits, LBT on vacant land, and WHT on cross-border payments creates a fiscal environment where the effective tax burden on an unplanned project can substantially exceed the headline 20% CIT rate. BOI promotion offers genuine relief for qualifying projects, but eligibility is narrower than many developers assume, and the procedural requirements are strict. The most durable risk-reduction strategy is to engage tax and legal counsel at the project structuring stage - before land acquisition, before the project company is incorporated, and well before the first pre-sale contract is signed.
To receive a checklist on full-cycle tax planning for real estate development in Thailand, send a request to info@vlolawfirm.com
Our law firm VLO Law Firms has experience supporting clients in Thailand on real estate development, BOI promotion, and cross-border tax structuring matters. We can assist with project company structuring, BOI application preparation, transfer pricing documentation, REIT exit planning, and Revenue Department compliance across all development stages. To receive a consultation, contact: info@vlolawfirm.com