LevelMark provides full-cycle accounting, tax filing, SSO, and corporate registration services for companies operating in Thailand. All filings are handled by certified professionals.

Monthly Tax Filing

Withholding Tax for Employees
PND 1 (ภ.ง.ด.1)
Withholding Tax for Individuals
PND 3 (ภ.ง.ด.3)
Withholding Tax for Juristic Persons
PND 53/54 (ภ.ง.ด.53/54)
VAT Filing (Monthly)
PP 30/36 (ภ.พ.30/36)

PND 1 covers salary and wages withheld monthly. PND 3 applies when a company pays freelancers, rent, or service fees. PND 53 covers company-to-company transactions.

Annual Tax Filing

Mid-Year Corporate Tax Return
PND 51 (ภ.ง.ด.51)
Annual Corporate Tax Return
PND 50 (ภ.ง.ด.50)
Financial Statement Submission
SBC.3 / BOJ.5 (ส.บช.3/บอจ.5)
Annual Employee Tax Summary
PND 1A (ภ.ง.ด.1ก)

PND 50 must be filed within 150 days of fiscal year-end. Financial statements are submitted simultaneously to the Revenue Department and DBD.

Social Security (SSO)

Employer Registration
SSO 1-01 (สปส.1-01)
New Employee / Resignation
SSO 1-03 / 6-09 (สปส.1-03/6-09)
Monthly Contribution Submission
SSO 1-10 (สปส.1-10)
Work Injury Fund Filing
KT.20A (กท.20ก)

SSO registration is mandatory for all companies with employees in Thailand. Monthly contributions are filed by the 15th of each month.

Corporate & Legal

Digital Company Registration
DBD Biz Regist
Amendment / Change Details
Company Dissolution & Liquidation
Liquidation (เสร็จชำระบัญชี)

We handle the full process of company formation and statutory changes through Thailand's Department of Business Development (DBD) digital platform.