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13th Month Pay Calculator

Calculate 13th month pay based on monthly salary, months worked, and allowances. This calculator uses the standard formula of total basic salary earned during the year divided by 12. Commonly used in the Philippines, Latin America, and parts of Europe where employers are required by law to pay an additional month of salary as a year-end bonus.

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112

Number of months employed during the calendar year

Some companies include regular allowances in the 13th month calculation

Transportation, meal, or other regular allowances

Result

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Formula

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Core Formula
13th Month Pay=Monthly Salary×Months Worked12\text{13th Month Pay} = \frac{\text{Monthly Salary} \times \text{Months Worked}}{12}

How it works: The 13th month pay is calculated by summing all basic salary earned during the calendar year and dividing by 12. If you worked the full year, it equals one month of basic salary. If you worked fewer months (e.g., started mid-year), it is prorated. In the Philippines, the first 90,000 in 13th month and other bonuses is tax-exempt.

Worked Example

An employee earning 35,000/month who worked 10 months this year:
1Step 1: Monthly salary = 35,000
2Step 2: Months worked = 10
3Step 3: Total basic salary = 35,000 x 10 = 350,000
4Step 4: 13th month pay = 350,000 / 12 = 29,167
5Step 5: Tax-exempt portion = 29,167 (under 90,000 threshold)
6Step 6: Annual compensation = 350,000 + 29,167 = 379,167

Understanding 13th Month Pay

The 13th month pay is a mandatory year-end bonus in several countries, most notably the Philippines. It guarantees every rank-and-file employee an additional month of basic salary, prorated for those who did not work the full calendar year. Understanding how it is computed helps employees verify their pay and plan their year-end finances.

  • Calculated as total basic salary earned during the year divided by 12, equaling one month of salary for full-year employees
  • Prorated for partial years: an employee who started in July receives half of their monthly salary as 13th month pay
  • Tax-exempt up to 90,000 in the Philippines under the TRAIN law; amounts exceeding this are taxable
  • Only basic salary is included by law; overtime, holiday pay, and allowances are excluded unless company policy says otherwise
  • Must be paid on or before December 24 each year in the Philippines

Use this calculator to verify your 13th month pay computation, especially if you started mid-year or have a complex pay structure with allowances.

You can also calculate changes using our Freelancer Rate Calculator, Salary After Tax Calculator, Bonus Tax Calculator or Commission Calculator.

Frequently Asked Questions

What is 13th month pay?

13th month pay is an additional month of salary paid to employees as a mandatory year-end bonus. It is calculated as the total basic salary earned during the calendar year divided by 12. It is required by law in the Philippines (Presidential Decree 851), most Latin American countries, and some European nations. All rank-and-file employees who have worked at least one month during the year are entitled to it.

How is 13th month pay calculated for new employees?

For employees who did not work the full calendar year, the 13th month pay is prorated. The formula is: (Monthly Salary x Months Worked) / 12. If you started in July and your monthly salary is 30,000, your 13th month pay would be (30,000 x 6) / 12 = 15,000. This applies to both new hires and employees who resigned mid-year.

Is 13th month pay taxable?

In the Philippines, the first 90,000 of 13th month pay and other benefits combined is tax-exempt under the TRAIN law. Any amount exceeding 90,000 is subject to income tax. For most employees earning under 90,000 per month, the 13th month pay is completely tax-free.

When is 13th month pay due?

In the Philippines, employers must pay the 13th month pay on or before December 24 of each year. Some companies pay half in June and half in December. The bonus must cover the period from January 1 to December 31 (or the employee's actual employment period within that year).

Are allowances included in 13th month pay?

Under Philippine law, only basic salary is included in the 13th month pay computation. Regular allowances (transportation, meal, rice subsidies) are generally excluded unless they are part of the basic pay structure. Overtime pay, holiday pay, and performance bonuses are also excluded. Some companies voluntarily include allowances as a benefit.

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