There is a requirement in Bulgaria and Cyprus to show the VAT % even if the amount to be paid is 0 on that tax. Please add this as a function Display 0% Tax Rate and Zero Amount. When one issues invoice to EU company even though the VAT % is not 0 the actual VAT is 0 EUR/USD. So it should be possible to show the actual country VAT but if valid VAT number had been provided the amount to be paid should be 0 in the EU.