The referenced tutorial demonstrates an older RDPrep workflow for preparing a PND.3 attachment and uploading an RDX file. Screens and procedures reflect the time of recording. Use the current Revenue Department forms and instructions before filing.
PND.3 is a withholding-tax return used when the income type and applicable law require it. Confirm the payer, recipient, payment and tax treatment from the current official guidance; do not choose a form solely because a video or software menu names it.
Before filing PND.3
- Confirm whether the payment and recipient belong on PND.3 or another return using the Revenue Department’s current explanation.
- Match the recipient’s name or tax ID, payment amount, payment date and withheld tax to your accounting records and payment evidence.
- Select the correct tax month and filing status, including an amended return where applicable.
- Check the current online filing deadline on the Revenue Department website.
- After submission, confirm the system accepted the return and keep the filing and payment receipts. Uploading a file or saving a draft does not by itself confirm that filing is complete.
Are the RDPrep and RDX steps in the video still current?
Do not assume that an older file format or workflow is still supported. The Revenue Department provides WHT Services System (SVS), WHT Software Component (SWC) and separate user guides. The required route depends on the service, filing role and current notices.
One notice describes a change for certain PND.53 filings made on behalf of another party beginning with tax month July 2025: it specifies SWC version 1.5.4 or later and says files ending in .whtc.rdx do not need to be converted again with RDPrep. That rule applies to the stated case; it does not mean every PND.3 filer should use the same file. Check the current WHT system page and guide before preparing an upload.
Official references
Use the current PND.3 form and instructions, WHT system notices, WHT/SWC guide and online filing calendar linked below. Government pages and requirements can change.
Video and references
- Revenue Department: WHT system and notices
- Revenue Department: WHT/SWC user guide
- Revenue Department: withholding-tax forms
- Revenue Department: online filing deadlines
- Watch the original video on YouTube: วิธีใช้ RDPrep ทำไฟล์ .RDX เพื่ออัพโหลดใบแนบ (ใหม่) | NEW e-Filing ยื่นภาษีออนไลน์แบบใหม่ EP.05
- Browse the source channel: TAXBugnoms
- Browse the source playlist: ระบบยื่นภาษี NEW e-Filing
Video titles and content belong to their respective creators. Linking to a video or channel does not imply a partnership or endorsement.