Why are Payroll Services Important to Your Organizations

The benefits of payroll services have never been more relevant. While payroll remains a business-critical function, evolving compliance requirements, workforce complexity, and ongoing talent shortages are making it increasingly difficult for organizations to manage effectively in-house.

This article examines the challenges behind modern payroll management, the hidden costs of in-house payroll, and why more businesses are turning to payroll services to save time, reduce risk, and support growth.

Why are so many businesses still relying on manual processes?

Payroll has changed significantly over the last few years.

Organizations are rethinking how payroll processing is managed as they look for ways to improve efficiency, strengthen compliance, and support a more digital workplace. According to ADP's Global Payroll Survey, 72% of employers are reviewing how payroll can be run with fewer people, with many turning to technology to bridge the gap.

Artificial intelligence (AI) is one of the solutions gaining attention. Among organizations exploring ways to modernize payroll, 44% are considering AI. At the same time, employers are increasingly looking for payroll capabilities that go beyond traditional payroll administration, including expertise in IT, data security, and analytics.

But there is one problem.

The skills needed to modernize payroll are in short supply

Dgital transformation is only as effective as the people behind it.

Employers around the world continue to face significant talent shortages, particularly in the areas most critical to payroll modernization. According to ManpowerGroup's Talent Shortage survey, 77% of employers report difficulty finding the skilled talent they need, with IT and data-related skills among the hardest to source. 

As a result, manual payroll isn't going away

Despite rapid advances in payroll technology, many organizations continue to rely on spreadsheets and manual workflows. In fact, research from SSR's payroll trends found that 19% of organizations still continue to depend heavily on manual activities.

But what does that mean for businesses in practice?

Why are businesses reconsidering in-house payroll?

1. Payroll demands more time than many leaders realize

Payroll is a business-critical function, but it can also be one of the most time-consuming administrative processes within an organization. From collecting attendance records and calculating salaries to processing statutory deductions and generating payslips, every payroll cycle requires considerable time and attention.

The amount of time involved often depends on two key factors: 

Company size: less employees doesn't always mean less work

At first glance, it may seem logical to assume that larger organizations spend more time on payroll because they have more employees. However, the reality is often the opposite with research conducted by Gitnux suggesting that smaller organizations frequently spend more time processing payroll than larger enterprises.

Why?

Large enterprises often benefit from dedicated payroll specialists, established workflows, and greater access to payroll technology.

Smaller businesses, however, typically operate with lean HR, finance, or administrative teams, where payroll management is just one of many responsibilities. The same person handling payroll may also be managing recruitment, onboarding, benefits administration, accounting, or compliance activities.

As a result, payroll can become a surprisingly time-intensive activity.

Industry complexity matters 

Payroll complexity is not determined by headcount alone. In many industries, the nature of the workforce can make payroll significantly more time intensive.

Manufacturing is a good example.

As one of Vietnam's largest employment sectors, manufacturing often relies on shift-based operations to meet production demands. A factory may run around the clock, with employees working across:

• Day shifts
• Night shifts
• Weekend shifts
• Public holidays
• Overtime schedules

While this helps maintain productivity, it can significantly increase payroll complexity.

Under Vietnam's Labor Code, employees must be compensated differently depending on when the work is performed. What may seem like a simple overtime calculation can quickly become more complex when night shifts, weekends, and public holidays are involved.

Consider the different compensation rates payroll teams must account for:

As a result, payroll teams must do far more than calculate a monthly salary. They must accurately track and process:

• Overtime pay
• Production and attendance bonuses
• Personal income tax (PIT) deductions
• Social insurance, health insurance, and unemployment insurance contributions

The challenge becomes even greater when businesses manage a mix of permanent employees, probationary staff, agency workers, or seasonal labor. Fluctuating schedules, attendance adjustments, and production-related incentives can all increase the number of payroll calculations and checks required before payday.

In other words, payroll is rarely a simple administrative task. It is a process that requires careful attention to labor regulations, workforce data, and compensation rules.

2. The hidden costs of in-house payroll

While outsourcing is sometimes perceived as expensive, this belief doesn’t always reflect reality. Studies of PWC show that around 19% of businesses cite cost as a primary concern when considering payroll outsourcing. However, this view often focuses only on service fees and overlooks the hidden costs of managing payroll in-house.

Payroll errors can be expensive

Even with experienced payroll teams, mistakes happen. According to EY, organizations achieve an average payroll accuracy rate of 80.15%, meaning payroll errors remain a common challenge. More importantly, each payroll error costs businesses an average of US$291 to resolve when direct and indirect costs are taken into account.

Some of the most common issues include:

• Time/attendance and expense errors: More than once per employee per year. 
• Vacation/paid time off/sick time request errors: 721 errors per 1,000 employees
• Benefit errors: 503 error per 1,000 employees

Taken together, these errors cost employers an average of US$647 per employee annually to correct. And that's before accounting for the potential impact on employee trust and productivity.

Compliance is a moving target

Payroll compliance is not a one-time exercise.

In Vietnam, businesses must navigate a regulatory environment where labor, tax, and social insurance requirements are regularly updated.

In 2025 alone, employers had to keep pace with numerous compliance requirements across payroll, taxation, insurance, and employment regulations. Staying aligned with these changes requires both expertise and continuous monitoring.

And if businesses don't have the resources or expertise to keep up? The costs can add up quickly in the form of back-pay obligations, interest charges, and financial penalties.

Take social insurance as an example. Under Vietnam's current social insurance framework, employers that incorrectly calculate, underreport, or fail to make mandatory social insurance contributions may be required to repay outstanding amounts and face penalties of up to VND 10 million.

Payroll accuracy affects employee experience

Getting payroll right is not only a compliance issue, it is also an employee experience issue.

In a labor market where skilled talent remains difficult to find, even small payroll mistakes can have an outsized impact. According to WorldMetrics, 92% of employees report higher job satisfaction when they are paid accurately and on time.

Employees may not notice a flawless payroll process, but they will almost certainly notice an incorrect paycheck, delayed payment, or missing allowance. Over time, these issues can undermine trust and create unnecessary friction in the employee experience.

How payroll services save time and cost

While every business has different requirements, the differences between in-house payroll and payroll services are often most visible in the areas below.

That said, outsourced payroll services are not without their challenges. Some businesses may have concerns around data security, responsiveness, or visibility into payroll operations. Others may be hesitant to entrust a third party with a function that directly impacts employees.

How Manpower Vietnam can support your payroll operations

What does successful payroll outsourcing look like in practice?

Here's how Manpower Vietnam helped a manufacturer streamline payroll operations for more than 7,000 employees.

Looking for a more efficient way to manage payroll?

Explore Our Payroll Services

Reference List

ADP (2026). The Potential of Payroll 2026. View source

SelectSoftware Reviews (2025). Payroll Statistics. View source

Gitnux (2025). Payroll Processing Time Statistics. View source

Vietnam Briefing (2025). Vietnam’s 2025 Job Market: Opportunities and Challenges. View source

PwC (2024). Payroll Study 2024. View source

EYQuest (2022). Cost and Risks Due to Payroll Errors. View source

Thu Vien Phap Luat (2020). Decree No. 28/2020/ND-CP on penalties for violations arising from labor and social insurance regulations. View source

WorldMetrics (2024). HR Payroll Industry Statistics. View source