Who Did You Become in 2025? Thai Tax Residency

Your tax status can only be determined at the end of the year — on December 31 — by counting the number of days spent in Thailand.

Resident — 180 days or more
Non-resident — 179 days or less

The status does not depend on the type of visa — only on the actual time spent in the country.

Who Should Pay Special Attention

It is especially important to determine your status if you:

  • earn income in Thailand
  • transfer money from abroad

1. No Income — No Reporting

If you have no income:

  • you are not required to obtain a Tax ID
  • you do not need to file a zero tax return

However, in practice, questions about the source of funds may arise.

For example:

  • you sold property and live on those funds
  • you transferred money to Thailand while being a non-resident
  • you earned income before 2024

2. Income in Thailand

If you receive income in Thailand (regardless of your status):

  • rental income
  • salary
  • commissions

You must:

  • obtain a Tax ID
  • file a personal income tax return (1–2 times per year)

This applies to both residents and non-residents.

Even if you do not live in Thailand but:

  • rent out property

—you are still required to report your income.

3. Money from Abroad

If you are a non-resident:

  • no reporting is required

If you are a resident:

  • you must declare transferred funds

At the same time, tax is not always payable.

When Tax May Not Apply

  • a double taxation agreement applies
  • tax has already been paid in another country
  • exemptions apply to certain types of income
  • you hold an LTR visa (exemption on foreign income)

What Is Considered a Transfer

  • bank transfers
  • cash withdrawals from a foreign card
  • bringing cash into Thailand
  • payments with a foreign card in Thailand

Conclusion

Tax residency determines:

  • the obligation to file tax returns
  • the rules for taxation of income

It is important to:

  • correctly determine your status
  • consider all sources of income
  • plan your tax position in advance

Author: Alexandra Agapitova
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