When a workplace injury, work-related illness, or employee accident occurs, employers in Thailand are required to report and process the incident through the Workmen Compensation Fund managed by the Social Security Office (SSO).

Two key documents play an important role in this process:

• KT16 Form – for reporting workplace injuries
• KT44 Form – for referring employees to treatment without having to pay upfront

This guide explains the purpose of each form, required documents, timelines, and what employers must do to stay compliant.

What Are KT16 and KT44 Forms?

The Workmen Compensation Fund requires employers to submit specific forms whenever an employee is injured, becomes ill due to work, or needs medical treatment from an approved hospital.

KT16 (Employer Injury Report Form)

Used to report a workplace accident or work-related illness.

KT44 (Medical Referral Form)

Used for sending employees to partner hospitals for treatment without upfront payment.

These two forms support compliance, protect employees’ rights, and simplify medical reimbursement under the Workmen Compensation Fund.

What Is KT16? (Workplace Injury Report Form)

The KT16 form must be submitted when an employee:

• is injured while working
• becomes sick due to work
• goes missing during work
• passes away from a work-related incident

Purpose of KT16

• Official document for reporting workplace injuries
• Required to request compensation from the Workmen Compensation Fund
• Acts as a formal Occupational Accident Report

Deadline for Submission

Employers must submit the KT16 form within 15 days after becoming aware of the incident.
Late submission may lead to penalties and delays in employee benefits.

Required Documents

• Medical certificate
• Police report (if applicable)
• Medical receipts
• Supporting documents requested by the Social Security Office

HR Tip: Store all documents digitally using an HRIS system such as COACH HCM to prevent missing files and speed up auditing.

What Is KT44? (Medical Referral Form)

The KT44 form is used to send an employee to an approved hospital so they can receive treatment without having to pay expenses upfront.

Purpose of KT44

• Acts as a medical referral to a Workmen Compensation Fund hospital
• Allows direct billing between the hospital and the fund
• Reduces financial burden for employees and HR

How KT44 Works

1. Employer issues the KT44 referral form
2. Employee brings it to the hospital
3. The hospital bills the Workmen Compensation Fund directly

Required Documents

• Original and copy of KT44 form
• Copy of employee ID card
• Additional documents requested by the hospital

KT16 vs KT44 What’s the Difference?

Item
Purpose
Submitted by
Used for
Related to

KT16
Report workplace injuries or illness
Employer
Compensation claims
Workplace injury reporting

KT44
Refer employee for medical treatment
Hospital(after receiving KT44)
Direct billing for treatment
Medical referral and treatment

Penalties for Submitting KT16 Late

Before Submitting KT16

• Confirm that the incident qualifies as a work-related injury
• Obtain the medical certificate
• Collect supporting documents (police report, receipts, etc.)
• Record the incident in your HR system
• Submit within 15 days

Before Issuing KT44

• Confirm the hospital is approved by the Workmen Compensation Fund
• Prepare employee identification documents
• Ensure accuracy in employer and employee details

How COACH HCM Supports HR in Workmen Compensation Processes

COACH HCM helps organizations manage employee incidents more efficiently by:

• Uploading medical certificates through the Employee Self-Service (ESS) portal
• Digitally storing KT16 and KT44 forms
• Automatic reminders for the 15-day submission deadline
• Recording workplace accidents in a centralized HR database
• Reducing paperwork and administrative errors

View COACH HCM customer case studies https://coachhcm.com/th/our-customers/

FAQs : KT16 & KT44 Explained

Q1: When must the KT16 form be submitted?
Within 15 days after the employer becomes aware of the incident.

Q2: Does the employee need to pay for treatment when using KT44?
No. Hospitals will bill the Workmen Compensation Fund directly.

Q3: Can medical certificate copies be used?
Typically, original documents are required, but some cases allow certified copies.

Q4: Can KT16 be used for incidents outside working hours?
Yes, if the incident occurred during an employer-assigned task.

Q5: What happens if KT16 is submitted late?
Employers may face penalties and compensation delays.

Reference

https://www.sso.go.th/wpr/assets/upload/files_storage/sso_th/1e343b47b0aafdd92dba34e7a4c0b384.pdf

https://www.sso.go.th/wpr/assets/upload/files_storage/sso_th/64da2ff1b2a127e1622361498d315944.pdf