Hi Shelly3
Welcome to the MYOB Community Forum, I hope you find plenty of useful information.
Thank you for your post. Checking at the set-up of Court Fine Deduction, for the default percentage, you can change or adjust it. We recommend contacting directly the justice.govt.nz for you to make sure what was the default percentage is and adjust it on the set up after to avoid any mis payments or overpayments.
You may also have a look at this Help Article: Court Fine Deduction and Reducing Balance Deduction that has all the detailed information and steps to assist you rechecking the set up and reducing the balance deduction of the IRD fines.
If you need further help, don't hesitate to start a new post and we'll be happy to assist.
Otherwise, if my response has answered your enquiry, please click "Accept as Solution" to assist other users find this information.
Cheers,
Shella_A