Is my GST based on invoices or on money received

For most businesses, GST/HST is reported on an invoice basis rather than a money-received basis, and that catches people who assume it follows the cash or accrual choice they use for income tax.

The general rule is that the tax becomes payable on the earlier of the day you are paid or the day you issue the invoice (or payment is due). In practice that usually means the invoice date. So if you invoice a customer in one period and they pay in the next, the GST/HST on that sale generally belongs on the return for the period you invoiced, even though the cash has not arrived yet.

How TALISK_HQ shows it

TALISK_HQ's GST worksheet follows the reporting method set on your book. Change the method and the worksheet re-times the same transactions accordingly, so the number you are reading always matches how the book is configured.

Where it gets specific to you

Whether a particular business can report on any basis other than the standard invoice one, and which method is right for you, is a narrower question than it looks and is your accountant's call. TALISK_HQ will produce the worksheet either way; the choice of method is theirs to confirm.