Thailand's restrictions on direct foreign ownership of land have long encouraged the development of sophisticated leasehold structures, particularly within Bangkok's luxury residential and mixed-use property sectors. A common arrangement involves a 30-year registered lease, often accompanied by a contractual commitment or renewal mechanism for an additional 30 years. For decades, many investors focused primarily on the legal and commercial aspects of these structures, while the accounting consequences remained relatively straightforward.
The adoption of Thai Financial Reporting Standard No. 16 (TFRS 16), which is substantially aligned with IFRS 16, has fundamentally changed this landscape. Corporate lessees can no longer treat significant long-term lease arrangements as simple rental expenses recognized periodically through profit and loss. Instead, qualifying lease contracts generally require recognition of both a lease liability and a corresponding right-of-use (ROU) asset on the balance sheet. This accounting transformation has become particularly significant for foreign-owned investment vehicles, property holding companies, family offices, and corporate buyers acquiring high-value leasehold estates in Bangkok.
The Critical Question: Is the Lease Term 30 Years or 60 Years?
One of the most complex professional judgments under TFRS 16 involves determining the lease term itself. Contrary to common belief, accountants cannot automatically assume that every "30+30" lease structure should be measured over 60 years.
Under TFRS 16, the lease liability is measured based on the present value of future lease payments over the lease term. Importantly, the lease term includes optional extension periods only when the lessee is "reasonably certain" to exercise the extension option. The assessment extends beyond legal wording and requires consideration of economic incentives, contractual protections, business strategy, property-specific factors, relocation costs, and the broader economics of the arrangement.
For example, a corporate purchaser that invests hundreds of millions of baht in custom-built luxury villas, infrastructure improvements, and long-term operational facilities may have strong economic incentives to remain on the property beyond the initial 30-year period. In such circumstances, management may conclude that exercising the renewal option is reasonably certain. If that conclusion can be supported with sufficient evidence, the lease term may extend to the full 60-year economic period for accounting purposes.
Conversely, if renewal rights are uncertain, dependent upon future negotiations, or lack enforceability under Thai law, auditors may challenge inclusion of the second 30-year period. The resulting accounting treatment could differ significantly from management's expectations.
The Balance Sheet Transformation and Financial Ratio Consequences

The most visible consequence of TFRS 16 is the recognition of substantial lease liabilities on the balance sheet.
For luxury leasehold properties, particularly those located in Bangkok's prime districts, the present value calculation may generate material liabilities extending decades into the future. Simultaneously, an equivalent right-of-use asset is recognized and subsequently depreciated over the applicable lease term. Lease liabilities are measured using discounted future lease payments and subsequently accounted for using the effective interest method, creating a financing profile rather than a traditional rental expense model.
This accounting treatment can dramatically alter key financial metrics:
- Debt-to-equity ratios may increase significantly.
- Return on assets may decline due to larger asset bases.
- EBITDA often improves because former rental expenses are replaced by depreciation and interest.
- Banking covenant calculations may require renegotiation.
- Investor perceptions of leverage may change despite no alteration in underlying cash flows.
For private equity funds, real estate holding companies, and multinational groups acquiring Thai leasehold properties through corporate vehicles, these balance sheet effects can influence financing strategies, acquisition structures, and valuation models.
Audit Scrutiny, Regulatory Expectations, and Future Developments

As Thailand's real estate market becomes increasingly institutionalized, auditors are placing greater emphasis on lease term judgments, renewal assumptions, and supporting documentation. The key challenge is not the mathematical calculation of the lease liability but the evidential basis supporting management's conclusion regarding renewal certainty. Professional judgment must be supported by legal analysis, commercial rationale, historical practices, investment commitments, and contractual rights.
For corporate buyers of Bangkok leasehold estates, the distinction between a 30-year and 60-year lease term can result in tens or even hundreds of millions of baht difference in recognized lease liabilities. As a result, accounting analysis should be integrated into transaction planning from the earliest stages rather than addressed only during year-end financial reporting.
In today's Thai real estate environment, leasehold acquisitions are no longer merely legal or commercial transactions. Under TFRS 16, they have become highly technical financial reporting events capable of reshaping leverage profiles, covenant compliance, valuation assumptions, and investor perceptions. Companies that fail to properly assess renewal rights, enforceability considerations, and economic incentives may find themselves facing significant audit challenges and unexpected balance sheet volatility long after the acquisition has been completed.

