Each year tax authorities and factoring agencies are losing billions of EUR because of invoicing fraud. If there was a simple way to assess the authenticity and integrity of an invoice, various types of fraud would be solved. Through the usage of blockchain technology we are building a secure database, called TX++ that will offer a solution. Within our solution we will not actually store invoices, but only encrypted invoice fingerprints. As a result, we're able to identify all VAT fraud without collecting taxpayer data. The database will guarantee the privacy of citizens and return stolen VAT fraud to the national treasuries. Furthermore, TX++ will disrupt the factoring market by creating a digital marketplace where companies can put up their invoices for auction. As invoice registrations are communicated to tax authorities, factoring companies have a lower risk associated with transactions and access to a huge pool of invoices.