For businesses that are overloaded with bills, there are apps out there where they can scan your invoices and process your invoices to an accounting system (xero or myob) Thus eliminating hours of data entry. Though we have yet to utilise such an app in our firm (can't let skynet take over!) as we prefer to be hands-on with the work given to us, some clients have provided good feedback on it.
40-80% the apps will be able to do all the data entry for you. Only exceptions are for the odd worn torn, or hand written invoices.
Please see the list below if you consider choosing this avenue for data entry.
Datamolino vs Entryless vs Receipt Bank vs Scan2Invoice v shoebox