4. The method of processing a taxpayer source document of claim 3 further comprising selecting a routine corresponding to the type of tax statement for the taxpayer source document.
4. The method of processing a taxpayer source document of claim 3 further comprising selecting a routine corresponding to the type of tax statement for the taxpayer source document. 5. The method of processing a taxpayer source document of claim 4 wherein using proforma data to verify the type of taxpayer source document for the electronic image of the taxpayer source document further includes using the routine corresponding to the type of taxpayer source document and a supplemental database to verify the type of tax statement for the taxpayer source document.