Thailand’s Finance Ministry has proposed a package of ten tax reforms that could raise more than THB 435 billion in additional annual government revenue, according to a recent Bangkok Post report.
The proposals include changes to personal income tax, VAT, excise tax, low-value imports, luxury goods, carbon-related taxes and international tax rules.
For expats living in Thailand, the important point is not that every measure will apply directly. Some proposals are aimed at large businesses, Thai nationals or specific goods and services. Others may affect everyday costs rather than personal tax filing.
The main areas for foreign residents to watch are personal income tax reform, deductions and allowances, VAT increases and stronger tax collection.
Why Thailand is considering tax reform
The proposed reforms should be seen in the context of Thailand’s wider fiscal position.
Thailand’s Medium-Term Fiscal Framework for fiscal years 2027 to 2030 (published in Thai) sets out the government’s wider fiscal direction, including the need to manage public finances, reduce the budget deficit and support future government revenue.
Kasikorn Research has also described the revised medium-term fiscal framework as part of the government’s effort to narrow the budget deficit.
In simple terms, Thailand is looking at how to raise more revenue over the medium term.
That does not mean every proposal is already law. Details may change before implementation and some measures may require further legal steps. However, foreign residents should pay attention where the reform discussion touches personal income tax, deductions, allowances, VAT and tax collection.
VAT is the biggest revenue measure
Most of the projected revenue in the reform package would come from VAT.
Under the proposal, VAT would increase from 7% to 8.5% in 2028, then to 10% in 2030. The Bangkok Post report says these two VAT changes are expected to raise THB 115 billion and THB 230 billion, respectively.
This means VAT accounts for around THB 345 billion of the projected THB 435 billion in additional annual revenue.
For expats, that distinction matters. VAT is not usually a personal income tax filing issue. It is a consumption tax, charged on many goods and services.
A VAT increase could still affect foreign residents through everyday living costs, especially retirees or others living on fixed income from overseas pensions, savings or investments.
Personal income tax is the area to watch
Although VAT provides the largest part of the projected revenue, personal income tax is the area that may matter most for filing.
The Finance Ministry’s proposals include revising the personal income tax structure and reviewing selected tax deductions and allowances. This part of the package is expected to generate around THB 50 billion in additional revenue.
Personal income tax is where many expats interact directly with the Thai tax system. It affects people who live in Thailand for 180 days or more in a calendar year, earn income in Thailand or remit certain overseas income into Thailand while tax resident.
Possible changes could affect tax bands, tax rates, filing thresholds, deductions, allowances and the way different types of income are reported.
At this stage, the details are not final. The important point is that personal income tax reform is clearly part of the wider policy discussion.
For expats, this means it is no longer sensible to assume that the rules, allowances and deductions available today will always remain the same.
Deductions and allowances need careful attention
The review of deductions and allowances could become one of the most practical issues for foreign residents.
Many expats already find this area confusing. When filing a Thai Personal Income Tax return, they may need to understand which deductions or allowances apply to them.
The areas commonly discussed in relation to deductions include personal allowances, family-related allowances, health insurance, life insurance, pension-related deductions, retirement savings, donations and other permitted deductions.
A review does not mean that any specific deduction will be removed. It means the government is looking again at how the current system works and whether some deductions or allowances should change.
For anyone filing in Thailand, it is important to understand which deductions or allowances are being claimed and to keep the supporting documents.
This is especially important where a return involves overseas income, foreign tax paid or remittances from overseas accounts.
Timing still needs care
One question many expats will ask is whether these reforms affect the next filing season.
At this stage, the answer is not yet clear. The reported package schedules the personal income tax measures for implementation in 2027, and some measures may need legal amendments before they can take effect.
This should be treated as a point to watch, not a confirmed filing rule.
For now, expats should continue to prepare based on the current rules while keeping an eye on any confirmed changes for future tax years.
Stay up to date
Thailand’s tax rules are continuing to develop. To keep up to date with the latest changes affecting expats, sign up for Expat Tax Thailand tax alerts.
Stronger tax collection may matter most
The reform package is not only about tax rates. It also points towards stronger tax collection.
This is important for expats because Thailand has already changed the way many foreign residents think about tax. Since the change to Thailand’s foreign income remittance rules from 2024, more foreign residents have needed to consider whether overseas income brought into Thailand may be assessable.
The wider fiscal plan also points towards better use of data. Reporting on the government’s fiscal framework has referred to plans to integrate income and taxpayer information across agencies through a Data Lake system to improve enforcement and compliance.
For expats, the message is simple: better records matter.
Foreign residents should be able to explain their tax residence position, overseas income, remittances into Thailand, foreign tax paid and any deductions or allowances claimed.
What probably matters less to most expats
Not every measure in the proposed reform package will be a major personal tax issue for foreign residents.
The global minimum tax, or top-up tax, is mainly relevant to large multinational groups. It is not usually an issue for an individual retiree, employee, pensioner or investor living in Thailand.
The proposed outbound travel tax has been reported as a 1,000 baht tax on Thai nationals travelling abroad, scheduled for 2027. If that remains the final design, it would not be a major issue for most foreign residents.
Changes to excise tax on alcohol, tobacco, cars or environmentally polluting products may affect prices. However, they are not usually personal income tax filing issues.
The same is true for changes to low-value import duty rules. These may affect online purchases and imported goods, but they are not usually central to an expat’s annual tax return.
What expats should do now
The right response is to prepare, not panic.
At this stage, many of the reported measures should be treated as proposals or planned reforms rather than final rules. Details may change before implementation and some measures may be phased in gradually.
However, expats should not ignore the direction of travel.
If you live in Thailand, receive foreign income or remit funds from overseas, now is a good time to review your Thai tax position.
In practical terms, expats should:
- Check whether they are likely to be Thai tax resident
- Understand what overseas income they receive
- Keep clear records of remittances into Thailand
- Keep bank statements and source-of-funds evidence
- Keep pension, investment and rental income records
- Keep proof of foreign tax paid where relevant
- Review which deductions and allowances they may be able to claim
- Avoid assuming that today’s rules will remain unchanged
- Seek guidance before making large or complex remittances
Good records are becoming more important, not less.
Need help understanding your Thai tax position?
Thailand’s tax system is continuing to develop. If you live in Thailand, receive foreign income or remit funds from overseas, it is important to understand how the rules may apply to you.
If you need assistance, our support team can help you review your position, understand your filing obligations and decide what support you may need.
