How to handle Tax Zone status certificate in Ghana( VAT related)

Ghana VAT.

We have a 10 year tax zone status certificate.. This is different form an exemption certificate which means we can still be charged vat from suppliers.

We pay the vat on the invoices if small values and expense this.

Currently if vat is on an invoice that comes through our scanners it pushes vat through, although hidden and it causes the go into recycle. Just wondering if there is a way for the system to automatically expense this vat without a customization so as to avoid these transactions going into recycle. Or any suggestion how to handle this VAT scenario.