MISMO Seeks Comment On Dataset Standard For IRS Form 4506-C – NMP Skip to main content

MISMO Seeks Comment On Dataset Standard For IRS Form 4506-C

Mar 21, 2022
MISMO

MISMO Resource offers lenders a streamlined data approach for requesting transcripts of tax returns.

The Mortgage Industry Standards Maintenance Organization (MISMO), is seeking public comment on its new dataset standard for the Internal Revenue Service (IRS) Request for Transcript of Tax Return (IRS Form 4506-C). 

The 60-day public comment period for this dataset runs through May 18, 2022, MISMO said. 

MISMO said its new dataset provides a standard set of data points that map to Form 4506-C, which is used for requesting tax transcripts from the IRS. The new dataset, accompanied by a sample XML file and a numbered form, demonstrates the necessary structure for implementing the dataset using the MISMO v3.5 reference model, it said.

Together, this information package will provide lenders and vendors a MISMO-standard method for completing IRS Form 4506-C, which fully replaced the Request for Transcript of Tax Return (IRS Form 4506-T), on May 1, 2021, MISMO said.

In addition to the dataset for IRS Form 4506-C, MISMO created a dataset for the previously used IRS Form 4506-T. This dataset provides historical context of the different MISMO data points needed for the new form.   

The public comment period allows those who participated on the proposal at least 60 days' notice prior to final release to review and disclose any applicable patent rights (as defined by MISMO's 2018 Intellectual Property Rights Policy).   

MISMO requests that any non-participant organization that may have any patent or patent applications, or other intellectual property rights that might be infringed upon by an organization that uses or is compliant with these proposed MISMO products, to disclose them at this time in writing. All comments and disclosures should be sent by email to [email protected].

A related initiative is MISMO's Taxpayer Consent Language, which provides a consistent way for the mortgage industry to obtain borrower consent to share tax information received from the IRS with other parties involved in a mortgage transaction. 

MISMO is a not-for-profit subsidiary of the Mortgage Bankers Association (MBA). It is responsible for developing standards for exchanging information and conducting business in the mortgage finance industry.

About the author
David Krechevsky was an editor at NMP.
Published
Mar 21, 2022
Fannie Changes How Rent From A Former Home Counts

Fannie now prohibits leases for departing residences and permits market-analysis tools instead of Form 1007, creating a key documentation difference from Freddie Mac

ACES Targets Loans Traditional QC Samples May Miss

New population-testing technology applies lender-defined rules across selected origination and servicing records, then directs flagged files to human reviewers

Sep 21, 2026
The Risk Your Credit Score Can't See

Place-based market risk can produce dramatically different default outcomes among borrowers with nearly identical credit profiles

Sep 17, 2026
Trump Taps FHA Insider Matt Jones To Lead Agency

The former MBA policy executive would oversee FHA underwriting, servicing, and credit-score changes that directly affect lenders and borrowers

Regulators Propose Risk-Based Vendor Oversight For Community Lenders

Plan could ease reviews of lower-risk mortgage technology while preserving lender responsibility for vendor failures

FHA Sets Jan. 1 Start For FICO 10T And VantageScore 4.0

Lenders will gain competing modern scoring options, but borrowers may not see both offered everywhere

Sep 11, 2026