Abstract: A computer-implemented method for summarizing receipts and grouping the receipts onto one or more invoices. The method includes receiving a number of receipts and a time period including a start date and an end date, summarizing the receipts in the number of receipts having an approval date in the time period to obtain a number of summarized receipts, and grouping the summarized receipts to obtain one or more grouped invoices based on two of a number of grouping rules, the number of grouping rules including grouping by supplier pay site code, grouping by payment currency, grouping by receipt number, to grouping by payment term, grouping by value date, grouping by invoice type, and grouping by tax rules.

Abstract: A computer-implemented method for summarizing receipts and grouping the receipts onto one or more invoices. The method includes receiving a number of receipts and a time period including a start date and an end date, summarizing the receipts in the number of receipts having an approval date in the time period to obtain a number of summarized receipts, and grouping the summarized receipts to obtain one or more grouped invoices based on two of a number of grouping rules, the number of grouping rules including grouping by supplier pay site code, grouping by payment currency, grouping by receipt number, to grouping by payment term, grouping by value date, grouping by invoice type, and grouping by tax rules.

Abstract: An automated computer-implemented method for determining tax decisions is disclosed. The method includes receiving one or more tax registrations for identifying one or more suppliers, receiving one or more purchase orders, receiving an advanced shipping notice based on the one or more purchase orders and generating an invoice with an actual tax amount upon receipt of the advanced shipping notice.