Apply RFC button

If you have a transaction in the cart that has adval due (Renew, NewReg, etc) and you have an RFC that you want to apply:
  1. Check the box beside the transaction that you want to apply taxes to
  2. Click the "Apply RFC" button
  3. The RFC will use as much tax as it can to apply to the taxes due on the checked transaction as a Voucher
  4. If there is money left over (or that can't be used) another RFC will be generated