FATCA XML Schemas Best Practices for Form 8966 DocRefId
The <DocRefId> data element is a unique identifier and reference for each account report. It pools reports across all reporting financial institutions and periods. In addition, each reporting FI, sponsor and intermediary should have a unique <DocRefId> associated with each record. For more information, review IDES Technical FAQ.
Beginning January 1, 2016, new business rules will validate a new <DocRefId > format. A transition period will allow users to implement the recommendation and ensure data element uniqueness. Currently, the FATCA XML Schema v1.1 accepts the new or current format.
The following format is required for standardized DocRefIds effective January 1, 2016:
|Size:||Minimum of 21 characters
Maximum of 200 characters