When a taxpayer has submitted his/her tax return within the specified deadline but there is a problem or error in the computer program or the e-filing system or payment method which resulted to the tax filing and payment to be unsuccessful, the form can be filed and the tax can be paid within 7 business days from the last day of filing via the internet and a request for an extension can be submitted.

The taxpayer must submit a petition along with the form and pay the tax at the Revenue Department’s area office along with the supporting documents as follows:-

• Request for extension and a letter of consider for disclosure of information
• Explanation letter of the cause of problem or error
• A copy of the list submitted through the House of Representatives
• Copy of Form B.Ch.35, if required

MSNA can assist individual taxpayers in filing their Thai personal income tax returns and corporate taxpayers in filing their corporate income tax returns and monthly taxes. We have vast knowledge and expertise in accounting and Thai tax laws. Make sure you submit your taxes on time. Contact us now for more information.