The service is billed monthly, according to the number of invoices issued during the previous month:
- Between 0 and 100 invoices: €9.99 excluding VAT
- Between 101 and 200 invoices: €19.99 excluding VAT
- Between 201 and 300 invoices: €29.99 excluding VAT
- 301 invoices or more: €39.99 excluding VAT
The customer advice option is non-binding and costs €15.99 excluding VAT per month.