The Guides to Social Policy Law is a collection of publications designed to assist decision makers administering social policy law. The information contained in this publication is intended only as a guide to relevant legislation/policy. The information is accurate as at the date listed at the bottom of the page, but may be subject to change. To discuss individual circumstances please contact Services Australia.

7.1.1 Calculating payment rates

Calculating the daily & payment rates

When the Registrar registers a periodic maintenance liability, a daily rate payable under that maintenance liability must be calculated.

Depending on the payment period (1.1.P.50), a weekly, fortnightly, 4-weekly or monthly payment rate must also be calculated. The child support debt (1.1.C.90) will be due and payable at particular periods, depending on the payment period.

The payment rate is calculated by multiplying the daily rate by the following number of days. The daily rate can be calculated by dividing the period of the liability by the number of days in that period.

The following table shows how many days are in each period.

PeriodNumber of days in the period
Weekly7
Fortnightly14
4 weeks28
Month30.4375
Year365.25

A daily rate is rounded up to 5 decimal places by reference to the value of the sixth decimal place.

Act reference: CSRC Act section 29 Conversion of amounts payable under registrable maintenance liability into daily rates etc.

CSRC Regs section 15 Conversion of amounts payable under registrable maintenance liabilities

Last reviewed: