Hi,
We'll contact Kitty to review the situation.
The taxes are calculated and distributed from Purchase Orders (Invoices/Adjustments), and posted through a clearing account into Payables. So deleting an invoice in Payables only deletes the Receipt Clearing entry and not the tax portion that was calculated and distributed to the GL with the PO End of Day processing.
Normally, the practice is to credit the invoice in Purchase Orders and not delete the Invoice in Payables.
Best,
Brian