Which Payroll Outsourcing Service Is Best? Compare 5 Providers
No single payroll outsourcing provider in Thailand is the best fit for every organization. Choose based on the work you need help with. If you want an employee time attendance app included with the service, both HumanSoft and 3P Professional offer one. If you want an accounting firm to handle tax and provident fund matters as well, Dharmniti is a better fit. Manpower lets you choose between outsourcing selected steps or the entire process, and PRTR focuses on businesses with 20–500 employees. Of these five providers, only HumanSoft publishes its pricing and services online. The others require a quotation.
This article was written by the HumanSoft team, which is one of the providers compared here. Information about the other providers was gathered from each provider's website.
Table of Contents:
- Which Payroll Outsourcing Service Is Best? Compare 5 Providers
- What Should You Look for in a Payroll Outsourcing Provider?
- Which 5 Payroll Outsourcing Services in Thailand Best Meet Your Needs?
- How Do These 5 Payroll Outsourcing Services Differ, and Which Businesses Do They Suit?
- How Does HumanSoft Payroll Outsourcing Meet Your Needs?
- Summary: Which Payroll Outsourcing Provider Is Best? Comparing 5 Providers
- FAQ: Frequently Asked Questions About Payroll Outsourcing
What Should You Look for in a Payroll Outsourcing Provider?
Before choosing a payroll outsourcing service, first identify which parts of the work your organization needs help with.
- Payroll calculation
- OT, bonuses, commissions, and other income
- Withholding tax
- Social security
- Provident fund
- Payslips
- Withholding tax certificates (50 Tawi)
- Monthly and annual reports
- Time attendance
- HR system and Employee Self-Service
- Bank payment file preparation
- Data review before closing payroll
Then compare pricing, data submission timelines, review steps, data corrections, after-sales service, and the systems the provider offers alongside the service.
Tips! Read more here >> How to Choose a Reliable Payroll Outsourcing Company in Thailand
Which 5 Payroll Outsourcing Services in Thailand Best Meet Your Needs?
A good payroll outsourcing service should cover payroll, tax, legal compliance, security, and ease of use. This article brings together the five providers that best meet these needs.
1. End-to-End Payroll Outsourcing from HumanSoft
HumanSoft Payroll Outsourcing is designed specifically for Thai businesses. A team of experts handles payroll, tax, and social security from start to finish every month, with a free HR system and employee app
Time Attendance and Shift Scheduling
- Time attendance system that works online and in real time
- Supports multiple shift patterns, including overnight and double shifts
- Check attendance records through the app and website
Payroll and Tax Calculation
- Calculation of salaries, absences, leave, overtime, and other special income
- Income tax and social security calculation
- Calculation of provident fund contributions and other fund deductions
Employee Documents
- Online e-Payslips, so employees do not need to print documents
- Preparation of withholding tax certificates (50 Tawi) for employees
- Online salary certificates with e-signatures
Monthly and Annual Reports
- Monthly employee payroll summary reports
- Monthly (PND.1) and annual (PND.1 Kor) income tax reports
- Social security contribution reports (SSO 1-10)
- Workmen's Compensation Fund wage report (Kor Tor 20 Kor)
HRM System and Employee App (Free)
- HRM system for HR to manage employee data within the organization
- HumanSoft App for employees to clock in and out, submit and approve documents, and view work schedules and holidays
2. Manpower Thailand Payroll Services
Manpower Thailand offers two options: Payroll Service, which supports selected steps, and Fully Managed Payroll Outsourcing, which handles the entire process. Its services cover the following:
- Calculation of salaries, OT, shift allowances, and attendance-related deductions
- Calculation of withholding tax (PND.1) and social security contributions
- Preparation of payslips and payroll summary reports
3. 3P Professional Payroll Services
3P Professional's payroll outsourcing service covers the following:
- Calculation of salaries, tax, social security, savings contributions, and other items for employees
- Preparation and submission of PND.1, PND.1 Kor, social security, Workmen's Compensation Fund, and 50 Tawi documents
- Customizable e-Payslips
- Payroll data sent to the client for review, with text files uploaded to the bank system for payment
- Free mobile time attendance system for employees (ESS)
4. Dharmniti Payroll Services
Dharmniti's Payroll Outsourcing Services cover the following:
- Calculation of salaries, tax, social security, and provident fund
- Individual payroll summaries and department-level totals for the accounting and finance team
- Preparation and submission of employee payroll details to the bank
- Preparation and filing of PND.1 Kor with the Revenue Department
- Registration of new and departing employees with the Social Security Office
- Provident fund coordination with the fund management company
5. PRTR Payroll Services
PRTR's Payroll Management service focuses on businesses with around 20–500 employees and covers the following:
- Calculation of salaries, overtime, commissions, and other benefits
- A ready-to-use system with no installation required
- An HR app for employees, offered as a separate product
How Do These 5 Payroll Outsourcing Services Differ, and Which Businesses Do They Suit?
| Provider | Time Attendance App / ESS | E-Payslip | 50 Tawi | PND.1 / Social Security | Provident Fund | Pricing | Best For |
|---|---|---|---|---|---|---|---|
| HumanSoft | Yes, free in every package | Yes | Yes | Prepares reports and submits files to government systems on your behalf | Calculates and issues reports | From THB 3,000/month (THB 160–220/employee) | Organizations that want a payroll team plus an HR system and employee app in one service |
| Manpower Thailand | Not stated | Payslips provided, format not stated | Not stated | Calculation (filing not stated) | Not stated | Quotation required | Companies that want to choose between support for selected steps or full outsourcing |
| 3P Professional | Yes, free (mobile clock-in) | Yes, customizable payslips | Yes | Prepares and submits | Not clearly stated | Quotation required | Organizations that want the provider to submit tax and social security filings on their behalf |
| Dharmniti | Not stated | Not stated | Not stated | Files PND.1 Kor · registers employees joining and leaving social security | Calculates and coordinates | Quotation required (based on headcount) | Companies that want payroll linked with accounting, tax, and fund management |
| PRTR | HR app offered as a separate product | Not stated | Not stated | Not stated | Not stated | Quotation required | Businesses with 20–500 employees that want a ready-to-use system with no installation |
* Information as of October 15, 2026, compiled from each provider's service page. "Not stated" means the website does not mention it, not that the service is unavailable. Service scope and terms may vary by package and are subject to change. Please confirm details directly with each provider before making a decision.
How Does HumanSoft Payroll Outsourcing Meet Your Needs?
For organizations that want to reduce their payroll workload while still giving HR and employees access to a system, HumanSoft offers both a payroll outsourcing team and an online HR system in one service. Its core services include:
- Payroll, tax, and social security calculation
- Support for multiple pay types
- Time attendance and shift scheduling
- Employee Self-Service
- E-Slip
- 50 Tawi preparation
- Monthly and annual reports
- Data for the Revenue Department and Social Security Office
- HR system for managing employee data
Pricing: Starts at THB 3,000/month. If the per-employee total exceeds this amount, pricing is calculated per head based on the package: Advanced Outsource at THB 160/employee/month or Professional Outsource at THB 220/employee/month. Prices include the software, HR system, and employee app, with no MA or annual fees. See how Payroll Outsourcing pricing works
Summary: Which Payroll Outsourcing Provider Is Best? Comparing 5 Providers
Choose the provider whose scope covers what your organization is missing, not necessarily the one with the most services. Use this guide to help you decide:
- You want to see pricing before talking to sales, and you want an HR system, time attendance app, and E-Slip in one service: choose HumanSoft
- You want to customize your payslip format and have the provider submit PND.1 and social security filings for you: choose 3P Professional
- You want an accounting firm to calculate payroll and coordinate your provident fund: choose Dharmniti
- You want experts to help with selected steps first, then expand to full outsourcing: choose Manpower Thailand
- You run a business with 20–500 employees and want a ready-to-use system, possibly along with other HR services: choose PRTR
Before signing a contract, ask every provider to state clearly whether they file PND.1 and SSO 1-10 on your behalf or only prepare the reports, who reviews the totals before payment, and whether fees are flat-rate or per employee.
Tips! Still deciding between outsourcing and running payroll in-house? Read more >> Which Payroll Software Is Best? Comparison and How to Choose and Payroll in Excel vs. a Payroll System: Which Is More Cost-Effective?
See full service details at HumanSoft End-to-End Payroll Outsourcing
FAQ: Frequently Asked Questions About Payroll Outsourcing
Q: What is payroll outsourcing?
A: Payroll outsourcing means hiring an external provider to handle payroll work within an agreed scope, such as calculating salaries, income, deductions, tax, social security, payslips, and reports. The organization still needs to submit data and review the results before closing payroll.
Q: Does HR still need to review payroll after outsourcing?
A: Yes. The provider calculates payroll from the data and conditions the organization supplies, so HR or an authorized person should check for completeness, unusual items, and payroll totals before approving payment each period.
Q: How is payroll outsourcing different from payroll software?
A: Payroll software is a tool the HR team uses to calculate and review payroll on its own. Payroll outsourcing brings in outside experts to run the process within an agreed scope, and some providers also include an HR system to use alongside the service.
Q: How much does HumanSoft payroll outsourcing cost?
A: The minimum fee is THB 3,000 per month. Above that, pricing is per employee by package: Advanced Outsource at THB 160 or Professional Outsource at THB 220 per employee per month. Prices include the software, HR system, and employee app, with no MA or annual fees.
Q: What data do I need to send the provider each month?
A: Send only what changed in that pay period, such as clock-in times, leave, OT, new hires or resignations, salary or position changes, and bonuses. With HumanSoft, attendance data from the employee app flows into the system automatically, so there are no files to send.
Q: What do I need to prepare before starting a payroll outsourcing service?
A: Prepare current employee data and the payroll conditions of your organization. The HumanSoft team will import the data, configure the system, and set up your salary structure at no cost, and you can run a proof of concept (POC) with part of your real data before deciding.
Q: Is payroll data secure with payroll outsourcing?
A: It is more secure than sharing payroll files among staff, because the data sits in a system with restricted access. HumanSoft is certified to ISO/IEC 27001 and backs up its database daily. Whichever provider you choose, ask about their security standards and data protection terms.
Q: When should I outsource payroll instead of buying payroll software?
A: Outsource payroll when your organization has no dedicated payroll team, has multiple branches or complex shift patterns, or does not want payroll data held by in-house staff. If your HR team can manage payroll on its own and wants to save more, payroll software may be more cost-effective.
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