Open Financial Exchange (OFX) Tax
The OFX specification for tax data exchange uses Extensible markup language (XML) technology.
The official OFX specification is available for download at https://www.ofx.org/downloads.html.
This website does not contain the official specification document itself. It provides information derived from the specification in HTML format.
The OFX Tax specification defines standards-based electronic delivery of the 36 annual tax documents listed below. Detailed information for each document is linked in the description column.