Payroll Setup > Company Setup > Formulas

Basic Formulas

This page provides more information about the use of formulas when creating custom items. To learn more about custom items, go to:

Payroll Setup > Company Setup > Custom Items

To create a formula for a custom item:

  1. Enter a Formula by starting with an “=”.
  2. You can then also enter variables, numbers and basic mathematical operators such as +, -, *, /, and ( ).

Examples of basic formulas that could be entered in the Formula field are the following:

  • = normal_rate * 40 * 25
  • = (basic_salary + normal_pay) / 4.3333 * 0.3333

Variables which can be used when creating formulas are:

  • basic_salary: Basic Salary (salaried employees)
  • normal_pay: Basic Hourly Rate (hourly paid employees)
  • normal_rate: Hourly Rate
  • shifts_worked: Number of shifts worked
  • total_income: Total income
  • min: Used to select the lowest of the values in the list provided to it
  • max: Used to select the highest of the values in the list provided to it
Example 1: Bargaining Council Levy
An employer must make a contribution that is 0.32% of the employee’s hourly pay, with a maximum contribution of €4.26. Since there is a maximum, the formula must select the lowest of option (1) which is
€4.26 and option (2) which is the employee’s pay multiplied by 0.32%
= min(4.26, (normal_pay*0.0032))

Example 2: Trade Union deduction
An employee must make a contribution of 1% of their hourly pay, plus
€0.80. The minimum contribution is €3.00 and the maximum contribution is €6.00.
= min(6, (max(3, (normal_pay*0.01)))) + 0.80

“IF” Statements

General IF statements

The IF function returns one value if the specified condition is true and another IF false. The IF statement is also known as a logical formula: If, then, else. If something is true, then do this, else/otherwise do that.

The IF statement works as follows:

if (condition, true statement, false statement)

For example: Suppose that the company deducts a staff social fund contribution based on how much an employee earns. If the employee’s salary is greater than €1 000, then the contribution is €10, but if the employees earns less than €1 000, then the contribution is €8.

The formula will be written as:

= if (basic_salary>1000, 10, 8)

This means that if the basic salary is greater than 1 000, the result will be 10 and if it’s less it will be 8.

Nested IF statements

A nested IF statement is an IF statement within an IF statement. It works as follows:

if ( condition, true statement , ( if ( condition, true statement, false statement) )

For example: Suppose that the company deducts a staff social fund contribution based on how much an employee earns. If the employee’s salary is greater than €1 000, then the contribution is €10, but if the employees earns between €500 and €1 000, then the contribution is €8, and if they earn less than €500 it is €6.

The formula will be written as follows:

= if (basic_salary>1000, 10, if (basic_salary<500, 6, 8)

This means that if the basic_salary is greater than 1 000, the result will be 10. Otherwise, if the salary is less than 500, the result will be 6, otherwise it will be 8.

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