Forwardable tax brief · Tax data / interoperability

Preserve machine-readable data and a portable human-readable record together.

Why should I care?

Data exchange does not automatically preserve document lineage.

What does not need to change?

Keep XML, APIs, taxonomies and validation rules.

What can be piloted safely?

One schema-adjacent controlled mapping.

UD is proposed as a portable record and provenance layer. This brief does not claim authority integration, filing acceptance, tax correctness, legal sufficiency, compliance or institutional adoption.