Fannie Mae Selling Guide B3-3.1-03 — Income Calculator
Fannie Mae Selling Guide B3-3.1-03 — Income Calculator.
Verbatim regulatory text
Verbatim provisions from Fannie Mae Selling Guide B3-3.1-03 — Income Calculator — each quote is a verified substring of the regulator-published source snapshot, not retyped. Quoted for reference; this is not legal advice. The operational layer (P&P updates, prompts) lives in the regulation update kits.
Fannie Mae Selling Guide B3-3.1-03 — Income Calculator
B3-3.1-03, Income Calculator (03/04/2026) Introduction This topic contains the following: Overview Findings Report Technology Service Provider Representations and Warranties Enforcement Relief Additional Requirements Overview Fannie Mae offers use of the Income Calculator as an optional tool to assist the lender in calculating qualifying income. This tool can be used for loans underwritten manually or through DU. Findings Report The Income Calculator Findings Report can be used to satisfy the requirements for the lender to prepare a written analysis of their evaluation regarding the calculation of qualifying income, such as Fannie Mae's Cash Flow Analysis ( Form 1084), Comparative Income Analysis ( Form 1088) or a similar form. A copy of the Findings Report must be maintained in the loan file. Technology Service Provider The lender can choose to use a Fannie Mae-approved technology service provider to extract data from tax returns and auto-populate the required fields within Income Calculator. Representations and Warranties Enforcement Relief When the amount of qualifying income being used by the lender is not more than the amount of income calculated by Income Calculator, enforcement relief from representations and warranties on the accuracy of the income calculation may be provided but the lender remains responsible for the accuracy of the information submitted. See Enforcement Relief of Representations and Warranties for Loans with Income Calculated by Income Calculator in A2-2-04, Limited Waiver and Enforcement Relief of Representations and Warranties for additional details. Additional Requirements For loans that use the qualifying income amount calculated by Income Calculator, the lender must also comply with the requirements in the following table. ✓ Additional Lender Requirements Confirm that tax returns meet the allowable age of documents requirements in B1-1-03, Allowable Age of Credit Documents and Federal Income Tax Returns. Ensure all information submitted to Income Calculator is accurate, complete, and reflects the information on the tax returns being used to document the qualifying income. Investigate and resolve any contradictory or conflicting information that may impact the accuracy of the income calculation. Comply with all other Selling Guide requirements, including DU messages, when applicable, and requirements in A2-2-04, Limited Waiver and Enforcement Relief of Representations and Warranties.
Get this regulation in your AI window
Announcements change Guide topics, but the old wording keeps circulating. An assistant will hand you the prior version and name no date at all.Put the verbatim text and its effective date in front of your assistant, instead of whatever it remembers.
Open in Claude Open in ChatGPT
Open in Claude shows the one-time setup: paste one address, no account with us. Open in ChatGPT asks ChatGPT about this page, with no setup. Either way it’s free.
Next step: the FNMA AI Lender Letter playbook. Run it in your AI window →
Get notified if this rule changes
One email when Fannie Mae Selling Guide B3-3.1-03 — Income Calculator changes: what changed, the new verbatim text, and the effective date. Nothing else.
Double opt-in: we send a confirmation link first. Following one section does not subscribe you to anything else. Privacy.
Source of record: https://claudeforcompliance.com/regs/fnma-sel-b3-3-1-03/
· register fnma-sel-b3-3-1-03 · verbatim, source-snapshotted regulator text from the
Claude for Compliance corpus. To work from every register at once, download the corpus
and follow the methodology.