To indicate the type of tax information.
Code qualifying the Reference Number.
BTI01 and BTI02 define the tax exchange program.
Reference number or identification number as defined for a particular Transaction Set, or as specified by the Reference Number Qualifier.
Code designating the system/method of code structure used for Identification Code (67).
BTI03 and BTI04 provide the taxpayer's identity.
Code identifying a party.
Date (YYMMDD).
BTI05 is the transaction set creation date.
