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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Some notes on the MT940 format used by various banks to export transactions

Posted by jpluimers on 2018/07/25

I needed the below links to get a feel on how much effort it would be to convert ABNAMRO transactions from MT940 into CSV or XLS extracting as many useful fields as possible.

Maybe it useful for other people as well.

I know there is CAMT.053 as well, but that puts every transaction into a separate XML file but still spreads the description over a multi-line structured field (like :86: below).

Two observations on field :86: (Information to Account Owner) are:

  1. Often it is less than 6 lines; I think it should be specified like “as most 6 lines of maximum 65 characters”
  2. At least ABN AMRO splits up the 65 characters into two columns:
    • part 1: 33 characters (almost always having a space in position 33)
    • part 2: 32 characters
  3. At least ABN AMRO uses this format for these lines:
    1. optional: description not having a semicolon (:) in it
    2. optional repetition of:
      1. mandatory keyword followed by a semicolon (:) and not having spaces in it
      2. mandatory description not having a semicolon (:) in it
      3. space

Searchable main source file of the library and easy browsing of the rest of the files: [WayBack] Mt940Parser.cs in sharpmt940lib located at /Raptorious.SharpMT940Lib | source code search engine

Background: [Archive.isJaco Adriaansen on Twitter: “@jpluimers Op dit moment parse ik 86 niet dieper. De inhoud van 86 is gewijzigd na dat ik het gemaakt heb. Zie:”



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