Hi, JoC94
Thanks for your post, and welcome to the MYOB Community Forum.
If your employee needs to repay the Study Loan, make sure your Tax table is updated. Once the Tax table is updated, it already has the increase or correct calculation. You may refer to The Help Articles: PAYG tax tables and Taxes for more information. However, if you are unsure which Tax table to use, we highly recommend speaking with your accounting advisor or with the ATO.
Please let us know if you require any further assistance with this.
Best regards,
Doreen