What is the deadline for filing taxes? The deadline is near. Income earners for 2025 are reminded not to forget submitting tax forms Por Ngor Dor 90/91. Check the final deadline and get guidance on how to file taxes online.
On 30 March 2026, reports reminded individuals with income in 2025—whether entrepreneurs, online vendors, YouTubers, or influencers—not to forget submitting their Por Ngor Dor 90/91 tax return forms.
For filing individual income tax returns for the 2025 tax year (filed in 2026), the deadlines are as follows:
Steps for online tax filing in 2026 (for tax year 2025).
Currently, tax filing is easy through the Revenue Department’s e-Filing system, following these steps:
1. Access the website atthe Revenue Department.Select the online filing option.
2. Login using your ID card number and password (if forgotten, reset via phone number).
3. Verify data: The My Tax Account system automatically displays some income and deductions submitted to the system, such as social security and housing loan interest.
4. Enter additional information: Input other income and prepared deductions, such as donations or investments in various funds.
5. Review and confirm: The system will immediately calculate whether you owe additional tax or are due a refund.
Taxpayers with tax payable of at least 3,000 baht can request payment in three installments. If the tax is not filed by the deadline, a surcharge of 1.5% per month (or fraction thereof) applies, along with fines.
Penalties for avoiding filing or providing false information include: 1. A fine up to 2,000 baht plus 1.5% monthly surcharge for late filing or payment; 2. If intentional tax evasion is found, imprisonment up to one year or a fine up to 200,000 baht, or both; 3. Providing false information may lead to imprisonment from 3 months to 7 years and fines from 2,000 to 200,000 baht.
All salaried individuals are obliged to file tax returns with the Revenue Department. Failure to file may result in criminal penalties. Citizens are urged to be cautious of scammers sending emails falsely claiming to be from the Revenue Department, offering tax deduction programs and asking recipients to confirm by entering usernames and passwords or personal data to steal sensitive information. The public is advised not to trust, click links, or provide any information.