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Existing receipt formats


  • Leif Arne Storset

Quicken Interchange Format (QIF)

Quicken Interchange Format (QIF) is an open specification for reading and writing financial data to media (i.e. files). It's unclear what invoice/receipt support is available, but invoice accounts are mentioned in the Wikipedia article. Further analysis needed.

Further reading

Open Financial Exchange

Analysis needed.

Further reading

Google Checkout API

Google Checkout offers an API for submitting invoice information. Two variants are provided: a simple HTML form method and a more sophisticated XML API.

Simple HTML form

  • Item information
    • name (required)
    • description (required)
    • quantity
    • price (required)
    • currency
  • Shipping methods
    • name
    • price
    • currency
    • U. S. area where the method is available
  • Tax
    • U. S. state in which you charge tax
    • tax rate


  • Shopping cart with item information and optional expiry date
    • name
    • description
    • unit price
    • quantity
    • item id (in merchant's database)
    • tax table to use
    • whether the item is digitally delivered and how (e-mail or download key)
    • other information
  • Checkout-flow support
    • tax tables
      • whether shipping is taxed
      • tax rate
      • geographic area
    • shipping options
      • pickup
      • flat-rate shipping
        • price
        • applicable areas
      • calculated by custom web service
  • Order-processing support
    • how to convey authorization information

Further reading

See Also