What happens if a Thai tax or DBD filing is late?
Short answer
Late filings attract surcharges and penalties set by the relevant law, and the exposure grows the longer the position is left. Late statutory filings also block or delay other processes, including bank facilities and work permit applications.
Where filings are already overdue, the practical approach is to establish the full list of missing periods first, then remediate in date order, rather than filing the most recent period and leaving gaps behind it.
Penalty and surcharge amounts should be confirmed with the Revenue Department or the Department of Business Development for the specific filing and period.
Reviewed as of 2026-08-04. General guidance only, not case-specific advice and not a guarantee of outcome. Government fees, conditions and processing times are set by the responsible authority and can change. This site does not publish prices — please ask our staff.
ให้เจ้าหน้าที่ตรวจขอบเขตงานและเอกสารก่อนเริ่ม
สอบถามรายละเอียดและเงื่อนไขได้ทางโทรศัพท์ LINE หรืออีเมล