Prorated salary refers to modifying an employee’s pay based on the time worked within a certain period. Employees are compensated proportionally for the days, weeks, or months they work. This system ensures fair compensation for part-time employees, new hires, and those who leave in the middle of a pay period. Based on the Ministry of Manpower, employers must pay salaries at least once a month, within 7 days after the salary period ends. Proper payroll management is essential for companies to stay compliant.
In Singapore, prorated pay estimates are essential for legal and tax compliance. This article discusses the notion of prorated salary and its importance. We’ll go over how to calculate prorated compensation, covering months, weeks, and days. Employers will benefit from simple formulas for each technique, ensuring proper payroll management.

- A prorated salary is a payment adjustment made when an employee works part of a pay period rather than the entire period.
- Prorated pay impacts employee benefits such as retirement contributions, health insurance, paid time off (PTO), and bonuses, modifying them proportionally to the time worked.
- In Singapore, the formula to calculate prorated salary is: Prorated Salary = (Monthly Salary ÷ Number of Days in Month) × Days Worked.
- ScaleOcean’s HRIS software streamlines the management of prorated salaries, ensuring accuracy and compliance by automating calculations and integrating with time tracking systems.

1. What is a Prorated Salary?
A prorated salary is a payment modification made when an employee works a portion of a pay period rather than the entire period. This is typically used when an employee begins or ends a job mid-month, works part-time, or takes unpaid leave. The purpose of prorating is to guarantee that employees are adequately compensated for the time they really worked, rather than receiving a whole compensation for a partial period.
For example, if an employee joins a company halfway through the month or quits before the end of the month, their remuneration will be computed based on the number of days or hours worked. Similarly, part-time employees or those who take unpaid leave would earn a lower compensation to reflect their fewer working hours. This adjustment promotes pay equity and guarantees that employees are only compensated for the time they contribute to the firm.
2. Can All Employees Receive Prorated Pay?
Not all employees receive prorated pay, although it is widely used for those who work less than a complete pay period. This often comprises new hires, employees who end their contracts mid-month, part-time workers, and individuals with flexible work hours. Prorated pay adjusts an employee’s income to match the actual time worked, ensuring appropriate compensation for the duration of their employment. Based on Hawksford, the Employment Act (EA) applies to employees working under a contract of service, excluding seamen, domestic workers, and government employees.
While prorated compensation is most commonly associated with salaried employees, hourly workers may also face comparable adjustments. Hourly employees receive prorated pay based on the number of hours worked in a given pay period. This guarantees that compensation is in line with the actual time spent on the task, whether the person works full-time, part-time, or on a flexible schedule.
3. What are the Effects of Prorated Pay on Employee Benefits?
Prorated pay influences not only an employee’s income but also the benefits they receive. Because prorated compensation represents the amount of time worked, benefits like retirement contributions, health insurance, paid time off (PTO), and bonuses can be modified proportionally. Prorated pay adjustments can affect human resource retention if employees feel their compensation or benefits are unfair, highlighting the need for careful management to reduce turnover. Here’s a closer look at how prorated pay can affect the following major areas of employee compensation:
a. Retirement Contributions
Retirement contributions are frequently linked to an employee’s earnings, thus when a person receives prorated pay, their payments to retirement accounts, such as pension plans, may be cut. Because the compensation is lower for the period, the employer’s matching contribution (if applicable) will be proportional to the amount received, implying that employees on prorated pay will notice a loss in their retirement savings during that time.
b. Health Insurance
Health insurance benefits are typically offered on a full-time basis. Employers may lower coverage or premium rates for employees getting prorated pay to reflect the fact that they work fewer hours than full-time employees. This reduction varies depending on corporate policies and the degree of benefits provided, and employees may find that their coverage is less complete while working on a prorated pay basis. Additionally, employers need to consider factors like corporate tax Singapore when determining how benefits are adjusted for prorated pay.
c. Paid Time Off (PTO)
Paid time off is another benefit impacted by prorated pay. Employees who work less hours, such as part-time or temporary workers, often receive less paid time off (PTO), which is computed based on hours worked. For example, if an employee earns a prorated wage and works part-time, their annual and sick leave will be modified accordingly, resulting in less PTO than a full-time employee.
d. Bonuses and Incentives
Bonuses and incentives are usually given based on performance and full-time work status. Employees on prorated pay may get a reduced bonus or incentive, depending on the company’s reward system. These benefits are frequently prorated to match the actual number of days or hours worked during the period, so the total bonus that employee receives is closely related to their work schedule for that specific period. Beyond salary adjustments, companies should also strengthen their talent management and succession planning to ensure long-term workforce stability and leadership continuity.
4. What are the Legal Requirements for Prorated Salary in Singapore?
In Singapore, the Ministry of Manpower (MOM) requires that wage payments follow the conditions of the employment contract. If an employee works for a portion of a salary period, their compensation must be prorated according to the number of days worked. This ensures that employees are adequately reimbursed for the time they worked, even if they did not work the entire pay period. Employers are responsible for ensuring that prorated pay calculations are correct and consistent with the employment agreement.
The MOM rules ensure fairness in salary proration, especially when employees join, leave, or work part-time mid-month. In such cases, employers must ensure that the prorated remuneration is computed based on the employee’s working days, with no loss of perks or entitlements. These standards are crucial for ensuring payroll transparency and compliance. They help treat employees fairly, regardless of work schedule or employment length.
Also Read: 12 Best Payroll Software Solutions in Singapore 2025
5. When Should You Pay Employees on a Pro-Rata Basis?
Prorated pay is required in many cases to ensure that employees are adequately reimbursed for the real time they labor. There are various situations in which a pro-rata compensation is required, and knowing when to utilize it helps maintain labor law compliance and assures equitable treatment for both employers and employees. This is especially important when adjusting the payroll cycle to reflect the actual days worked within the period.
a. New Hires or Terminations Mid-Pay Period
When an employee joins or leaves mid-pay period, their pay is prorated based on days worked. New hires are paid for the days between their start date and the pay period’s end. Employees leaving early are entitled to prorated pay for the days worked.
b. Part-Time Employees
Part-time employees are often scheduled to work less hours than full-time employees, making prorated compensation necessary. These employees are compensated in proportion to the time they work within a pay period, ensuring that they are fairly compensated for the hours performed. Their payslip will reflect the adjusted amount based on their actual working hours. This also applies to temporary or seasonal workers who are hired for specified time periods.
c. Flexible Work Schedules
Employees with flexible schedules, such as compressed workweeks or adjusted hours, receive prorated pay based on their modified schedule. Their compensation is calculated based on the actual hours worked, ensuring fair payment for their time. This flexibility enables people to handle their personal and professional responsibilities without sacrificing fair pay.
d. Unpaid Leaves of Absence
When an employee takes unpaid leave, their remuneration is prorated to reflect only the days worked within the pay period. For example, if an employee takes a few days off without compensation, their paycheck will be cut by the number of unpaid days. This guarantees that pay is based on actual days worked and that compensation is fair.
6. How to Calculate Prorated Salary in Singapore?
Calculating prorated salary in Singapore varies depending on the payment system and length of employment. Employers often base their approach on the number of days or weeks an employee worked throughout the pay cycle, in line with guidelines set by the IRAS Inland Revenue Authority of Singapore. The following are three popular approaches for calculating prorated salaries:
a. Prorate by Months
This strategy is best suited for employees who only work part of the month. To determine the prorated salary, divide the employee’s total monthly salary by the number of days in the month. Then, multiply this sum by the number of days the employee worked in that month. This guarantees that employees are only compensated for the time they worked during the pay period, rather than receiving a full monthly paycheck. Here is the formula for calculating prorated salary by months:
Prorated Salary = (Monthly Salary ÷ Number of Days in Month) × Days Worked
b. Prorate by Weeks
For employees with a weekly pay cycle, prorating by weeks is the ideal option. In this situation, the weekly compensation is divided by the number of working days (usually seven). Following that, the employee’s daily rate is multiplied by the number of days worked that week. This strategy is appropriate for people working on a short-term or weekly contract. Here is the formula for calculating prorated salary by weeks:
Prorated Salary = (Weekly Salary ÷ 7) × Days Worked
c. Prorate by Days
The prorated compensation by days is especially useful for employees who work irregular hours or are absent for a portion of the pay period. To calculate this, divide your monthly or weekly salary by the total number of working days in that time period. Then, multiply the result by the number of days the person worked. This strategy ensures employees are fairly compensated based on the actual number of days worked during the pay cycle. Here is the formula for calculating prorated salary by days:
Prorated Salary = (Salary ÷ Total Days in Period) × Days Worked
7. Manage Prorated Salary Easily and Stay Compliant with ScaleOcean HRIS Software
ScaleOcean’s HRIS software provides an efficient solution for handling prorated salaries, allowing organizations to conduct payroll with ease and precision. The software’s automatic functions prevent manual errors and save time by calculating prorated pay according to preset parameters. The seamless interaction with time monitoring systems guarantees that salary calculations accurately reflect actual working hours. ScaleOcean offers a scalable solution for complex payroll situations and helps you keep up with changing legislation.
If you’re looking for a simple, compliant way to handle prorated salaries, ScaleOcean offers a free demo to get started. Additionally, ScaleOcean is eligible for the CTC (Cost to Company) grant, making it a more appealing solution for firms improving payroll management. The following is a list of ScaleOcean software’s unique selling points (USPs):
- Automated calculation, Easily calculate prorated salary with automated tools, reducing errors and time spent on manual calculations.
- Time tracking integration, Seamlessly integrate time tracking with payroll systems to ensure accurate salary payments.
- Customizable rules, Tailor prorated pay rules to meet your company’s specific needs and adjust based on employee work schedules.
- Automatic updates, Stay up to date with any regulatory changes in salary calculations or tax rates.
- Compliance and reporting, Ensure compliance with local regulations and generate necessary reports for payroll audits.
- Self-service portals, Allow employees to access their pay details and track their work hours through a convenient self-service portal.
Also Read: HRIS System Overview: Definition, Features, and Benefits
8. Conclusion
Understanding prorated salary calculations is critical for ensuring equitable compensation, particularly for employees who work half pay periods. Prorated pay guarantees that employees are equitably compensated, whether they are new hires, part-time workers, or operate on flexible schedules. Prorating by months, weeks, or days ensures payroll accuracy and fairness. It is also critical to understand how prorated pay affects employee benefits and to comply with legal requirements, particularly in Singapore.
ScaleOcean HRIS software provides a comprehensive solution for firms looking to handle prorated salaries more efficiently. Features like automated calculations, time tracking integration, and customized rules ensure payroll accuracy. Compliance reporting enables firms to stay on track with rules. ScaleOcean also offers self-service portals, making payment information conveniently accessible. Sign up for a free demo today to learn how ScaleOcean can enhance your payroll management.
FAQ:
1. What is the meaning of prorated salary?
Prorated salary is the amount an employee is paid based on the actual time they worked during a specific period. This calculation is typically applied to part-time, temporary, or employees who join or leave mid-pay cycle, ensuring they are paid fairly for their contributions to the company during that time.
2. What does it mean if a payment is prorated?
A prorated payment means that the pay an employee receives is adjusted according to the actual time they worked in a specific pay period. Instead of getting the full amount for the entire period, the employee is compensated for the exact portion of the period they were employed.
3. What is an example of prorated?
A common example of prorated pay is when an employee begins work halfway through a month. In this case, they would only be paid for the days they actually worked, not the full salary for the month. Similarly, if an employee leaves before the pay period ends, they would receive compensation only for the days worked up until their departure.
4. How is prorated calculated?
Prorated salary is determined by dividing the full salary by the number of days or weeks in the pay period, then multiplying by the number of days or weeks the employee worked. The calculation method depends on whether the pay period is based on months, weeks, or days, ensuring employees are paid fairly for the time worked.