What is a tax refund? How many days is the fastest to receive a refund after filing?
What is a tax refund? Recommendations on how to claim tax refunds correctly and receive them quickly, along with an explanation of how to check the refund status via the website.
A tax refund is a crucial element that every business and entrepreneur should manage correctly according to the Revenue Department's laws to ensure maximum benefit for business operations. Management in this area involves many aspects, ranging from tax filing, tax payment, and paying taxes, to checking tax refunds, which business people should learn and understand in detail.
Before claiming a tax refund in the 2026 tax year, understanding these details is unavoidable. In this article, we will guide you through various matters regarding checking tax refunds for businesses.
Key Takeaways
- A tax refund is the tax amount paid in excess of the actual tax liability.
- Businesses can check their tax refund status by themselves via the Revenue Department's online system or inquire directly at the Area Revenue Office based on their domicile.
- You should fill out the online tax filing form completely and correctly, review the information thoroughly before confirming, attach/upload complete documents, and link PromptPay to your ID card number.
- Prepare for tax refunds in advance, including Personal Income Tax calculations, planning for online tax filing, and managing the business's payment receipt/disbursement system systematically.
Article Contents
- What is a tax refund? And who is eligible to claim it?
- How to check tax refund status from the Revenue Department
- How many channels are there for tax refunds?
- Tips for filing taxes to get a quick refund
- Frequently Asked Questions (FAQs)
- Summary of advice regarding tax refunds: How to prepare for the fastest filing and refund
What is a tax refund? And who is eligible to claim it?
A tax refund is the portion of tax paid that exceeds what the law requires to be actually paid. This can occur from withholding tax or advance tax payments. You can file for a tax refund from the Revenue Department after filing and paying taxes online, such as P.N.D. 90 and 91. The main groups eligible to claim tax refunds are:
- Individuals who have had tax withheld at the source from their income and have filed Personal Income Tax, finding that the amount paid throughout the year is higher than the actual tax liability after deducting allowances.
- Businesses that have registered a company, filed taxes online, and utilized full tax allowances, finding that there is an overpayment which may arise from excess tax paid or the full utilization of tax allowances/exemptions.
The Revenue Department will proceed with tax refunds primarily via PromptPay linked to the ID card number, or issue a refund notification letter with a cheque for certain groups unable to use PromptPay, such as foreigners, ordinary partnerships, or heritage estates, etc.
How to check tax refund status from the Revenue Department
After filing for a tax refund, the next step is checking the tax refund. Currently, the Revenue Department has a system allowing you to check the status yourself. You can check and verify the details of your tax refund request status after paying taxes online through the following steps:
Channel 1: Check via the Revenue Department Website (RD)
Currently, checking tax refund status is easy and convenient via the My Tax Account / D-MyTax system on the Revenue Department website. This method is convenient and provides comprehensive details. The main steps are:
1. Access the Revenue Department website via 2 methods:
• Go to www.rd.go.th, select the My Tax Account menu, then select Check Tax Information. • Access via the D-MyTax system link as recommended by iTAX guides.
2. Log in according to each channel:
• www.rd.go.th: Log in with RD ID using your Tax ID or ID Card Number + Password + Laser ID (back of ID card). • D-MyTax: Log in with Digital ID as registered.
3. The system will ask for identity verification via an OTP code sent to your phone number or email. Enter the OTP code and confirm.
4. Once logged in, go to the menu:
• www.rd.go.th: Go to the menu Track Refund Status / Submit Documents. • D-MyTax: Go to the menu Tax Refund Status.
5. The system will display your refund request status, which has 3 types of details:
• Under data verification • Processing refund • Refund completed (with information on the refund channel used)
Note: If the system notifies you to submit additional documents, such as income verification documents or proof of allowances, you can upload documents via the same menu.
Channel 2: Contact the Area Revenue Office based on the domicile filed
If you are not comfortable checking the tax refund status online, or if you have checked the system and have further questions, you can directly contact the Area Revenue Office responsible for the address and domicile listed in the P.N.D. 90 or 91 form you filed.
This also applies to cases with problems, such as refunds being delayed longer than usual, receiving incomplete amounts, refund notification letters/cheques being sent by post, or refunds not reaching the taxpayer. You can seek advice at the Area Revenue Office to issue a new refund notification letter or correct necessary information as well.
How many channels are there for tax refunds?
When claiming a tax refund from the Revenue Department, taxpayers can choose to receive the tax refund through 3 main channels as follows:
1. Receive the refund into a bank account registered with PromptPay using the 13-digit ID card number.
2. Receive as cash or into an account at Krungthai Bank or the Bank for Agriculture and Agricultural Cooperatives (BAAC) branches after the issuance of the Personal Income Tax Refund Notification Letter Form K.21 (in case of not wishing to receive via PromptPay).
3. Receive a tax refund cheque by mail. Receive the cheque along with the K.21 letter sent to the address on the tax return form. This is for claimants who cannot register for PromptPay with an ID card number, such as foreigners, ordinary partnerships, bodies of persons, community enterprises, or heritage estates. The cheque must be deposited into a bank account only.
Tips for filing taxes to get a quick refund
To reduce steps and help receive tax refunds faster, we recommend preparing the following before filing taxes online:
- Link PromptPay with your ID card number, as the Revenue Department can transfer money directly to your account immediately.
- Fill out the online tax filing information completely and correctly to reduce the chance of officers requesting additional documents.
- Check the accuracy of income, withholding tax, and various allowances as precisely as possible before confirming the filing.
- Monitor the status regularly and use the Revenue Department's online system to check your refund request status periodically.
Frequently Asked Questions (FAQs)
How many days to wait for a tax refund?
Generally, the Revenue Department states that tax refunds will be processed within 3 months from the date the refund request is received and supporting documents are complete. However, for those who file online and have linked PromptPay with complete documents, the refund may be received as quickly as 3-7 business days or sooner, depending on the tidiness of the information you submitted. You should plan your financial planning related to using this money during that period.
How is the tax refund calculated?
Tax Refund = Total Tax Withheld/Paid during the year - Actual Tax Liability
Actual Tax Liability is the tax calculated from net income after deducting expenses and all allowances. If the result after calculation is a positive number, it means you are eligible to claim a tax refund for that amount.
What to do if I need to correct information in the tax filing?
If you have already filed taxes and found that you entered incorrect information, you can file an additional form (correction) via the Revenue Department's online tax filing system within the filing deadline. However, if the deadline has passed, you must go to the Area Revenue Office to file a correction or additional filing in person.
Guide to claiming tax refunds: Prepare complete documents to receive refunds quickly
In filing for a tax refund, it is necessary to carefully prepare relevant documents and clearly understand the steps to proceed correctly and receive the refund as quickly as possible. You should be ready for both Personal Income Tax calculations and preparing for online tax payments before the upcoming 2026 online tax filing round for individuals and businesses.
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References
1. Tax Refund. (2024, March 8). The Revenue Department. https://www.rd.go.th/63437.html
2. Check Tax Refund Status 2024 via D-MyTax System, Revenue Department. (2025, February 12). iTAX. https://www.itax.in.th/media/เช็กสถานะเงินคืนภาษี-2567/
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