How Does Reopening and Closing Deals Affect the VAT Return?

Quick Answer: It doesn't.

The VAT return is generated based on the creation and crediting of invoices, with the invoice date serving as the key tax point. This date determines when the VAT is reported, meaning that reopening or closing a deal does not impact the VAT return directly. These actions only affect the nominal dates in your records.

Additionally, reopening and closing deals influence when the unit sale is reflected in your profit reports, specifically within the Sales Managers > Profit Report section.