Thriday automatically calculates the GST included in your transactions if you enable GST calculations as a default in settings or if you click the ‘Apply GST’ button in the details screen of a transaction. However, you can also change the GST amount for past transactions yourself:
1. From the Home screen, click on Accounts
2. Select the transaction you want to make changes to
3. Click on VIEW ALL DETAILS
4. Locate the row for GST
5. Select the edit function
6. Correct the GST
7. Select the green check to save the new GST figure
