Home
Ecosystem
Tax Documents
Documentation
- FDX
- OFX
- TXF
- FIRE
- IRIS
Use Cases

MFAChallengeResponse

OFX / Types / MFAChallengeResponse

#	Tag	Type
1	MFACHALLENGE	MFAChallenge

Usages:

MFAChallengeTransactionResponse MFACHALLENGERS

Tax Data Exchange

Tax Data Exchange documents standards for electronic distribution of annual tax document data.

info@taxdataexchange.org

Standards

FDX
OFX
TXF

For Developers

QR Code
Intelligent Tax Documents^®
Doc Issuers
Tax Software
Brokers
Resources and Services - About
Resources and Services - Access

Use Cases

API
File Export/Import - JSON
File Export/Import - Intelligent Tax Document^®
QR Code

About

About Site

Other

FDX Tax History
Registry of Participants
IRS Publications
IRS Information Return Intake System

© Copyright 2025. All Rights Reserved.