1) Create an invoice (record goes into accounts receivables)
2) Print/email the customer
3) Get paid
4) Enter Receive Payment transactions (record goes into bank account)
At this stage assuming GST was involved with the invoice, you can select the GST reports from the report tab.
- GST cash will calculate based on the paid GST (bank account)
- GST accrual will calculate based on the receiveable GST