Child Support Employer Calculator

To assist employers work out the net pay to the employee, taking into account child support payments, the protected earnings amount and the basic tax liability.

Please note: For those employers where the CSA has initiated the deduction of child support from an employee's salary, wage or contract payments (Employer Withholding), the CSA has sent you a letter and new deduction schedule relating to the new Child Support Scheme (started 1 July 2008).

You should use the child support amount from the new deduction schedule in the employer calculator.

This calculator uses ATO tax scales for the 2008-2009 financial year.  This calculator also uses the 2009 protected earnings amount.

The results from using this calculator are indicative only. They may not be the same as a Child Support Assessment done by the Child Support Agency. If you require an exact assessment, contact Employer Services on 131 272 and speak with a Client Service Officer.
Learn more about the values used in this formula

Which pay period would you like this calculation to apply to?  (ensure all figures use the same pay period)		Week Fortnight Month Year
What was the employee's gross income for the pay period?	$
What is the employee's Child Support liability in the pay period?	$
Optional: If the employee's tax is different to the basic tax liability, calculate the tax using the Australian Tax Office calculator, and enter the tax figure here:	$

Calculation examples
View examples of how to do the calculations

Basic tax liability
The calculation of tax uses the following assumptions.
The employee:

• has provided a Tax File Number (TFN)
• is an Australian Resident
• is claiming Tax Free Threshold
• is claiming nothing for Rebates and Family Tax Benefit
• is not claiming exemption or variation from the Medicare levy
• is not entitled to annual leave loading
• does not have a HECS accumulated debt