Following are data on 20 invoices, including contract, invoice, and delivery data. Calculate the correct due date for each invoice using Prompt Payment Act rules.
Where contract data is blank, assume the normal or default value for the particular commodity or type of invoice involved.
Invoice #1 has been filled in with the correct entries, shown in gray.
Solutions can be found in Appendix 4.
Invoice #1
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services (30 days) (30 days) |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail May 1 May 3 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
April 25 (+7) (May 2) April 27 (April 27) |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
(May 3) (+30) (June 2) |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Electronic April 10 April 10 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
April 7 April 7 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #3
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Electronic April 10 April 10 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
April 7 April 13 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Electronic April 10 April 10 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
April 7 April 16 |
Start date Due date | Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #5
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
Computer system/software 30 days |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail August 7 August 9 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
August 5 August 28 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail August 17 August 19 August 23 September 1 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
August 15 August 16 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #7
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (datestamped) Date defective invoice returned Date corrected invoice received |
Mail August 17 August 19 August 30 September 1 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
August 15 August 16 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail August 17 August 19 September 29 October 1 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
August 15 August 16 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #9
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail November 5 Not stamped |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
November 2 November 2 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail November 5 Not stamped |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
November 4 November 11 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #11
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services Delivery ticket |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Delivery ticket October 3 October 3 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
October 3 October 7 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
Seafood |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail January 10 January 10 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
January 10 January 10 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #13
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
Raw vegetables |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail May 20 May 20 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
May 20 May 20 |
Start date Due date | Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services Payment date = December 30 |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail December 5 December 8 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
November 30 December 7 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #15
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
Canned soups and seafood |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail April 22 April 23 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
April 21 April 21 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Electronic March 1 March 1 April 27 June 10 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
February 28 March 3 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #17
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail June 15 June 15 July 12 July 15 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
June 10 June 17 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
General goods or services Fast Pay Fast Payment contract |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Electronic April 10 April 10 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
April 9 April 10 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Invoice #19
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
Cost-reimbursable services Interim payments on cost- reimbursable services |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail July 2 July 5 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actual acceptance Earlier of constructive or actual |
June 30 July 3 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |
Contract data | Items ordered Payment period Acceptance period Other contract provisions |
Construction contract Progress payments |
Invoice data | Method of invoice delivery Vendor invoice date Invoice received (date-stamped) Date defective invoice returned Date corrected invoice received |
Mail January 20 January 21 |
Delivery data | Actual delivery of goods/services Plus acceptance period Constructive acceptance Actualacceptance Earlier of constructive or actual |
January 15 January 19 |
Start date Due date |
Later of acceptance or invoice receipt Plus payment period Payment due date |