Thailand’s New Tax Rules Could Target Global Income

 Thailand’s Revenue Department is considering a major shift in its tax policy by implementing a worldwide income taxation system. If approved, this change would require anyone living in Thailand for at least 180 days a year to pay taxes on income earned abroad, even if the money isn’t brought into Thailand.

Current Taxation Principles

Under the existing tax laws in Thailand, there are two main principles:

1. Source Rule: Income generated within Thailand is taxed, no matter where it comes from.
2. Resident Rule: Individuals who live in Thailand for 180 days or more in a tax year are taxed on their income, both domestic and international.

Criteria for Taxing Foreign Income

For foreign income to be taxable in Thailand, the following conditions must be met:

1. The individual resides in Thailand for at least 180 days within a tax year.
2. The individual earns income from abroad.
3. The income is brought into Thailand.

Previously, foreign income was only taxed if it was brought into Thailand in the same year it was earned. Starting in 2024, foreign income will be taxed regardless of when it is brought into the country, with tax rates ranging from 5% to 35%.

Potential Impact of the New Policy

Under the proposed policy, anyone living in Thailand for at least 180 days would have to pay taxes on their global income, even if it stays abroad. This approach is similar to that of the United States.

To prevent double taxation, Thailand has 61 agreements with other countries. These agreements allow individuals to offset the taxes paid abroad against their Thai tax liabilities. For instance, if someone pays 15% tax on their income in another country and the Thai tax rate is 20%, they would only need to pay the remaining 5% to Thailand.

International Information Exchange

Thailand is also enhancing its tax information exchange with other countries. By adopting international standards, Thailand aims to increase transparency and reduce tax evasion. This includes both requesting and automatically exchanging financial account information with treaty partners, primarily focusing on investment-related data like interest and dividends.

However, certain financial details, such as salaries and wages, are not covered under these agreements.

Adopting the worldwide income taxation system would be a significant change for Thailand. The Revenue Department is studying similar systems in other countries to understand the challenges and ensure a fair implementation of the new rules.