source:
  type: guide
  id: fnma-sel-b3-2-10
  authority: Fannie Mae Selling Guide B3-2-10 — Accuracy of DU Data, DU Tolerances,
    and Errors in the Credit Report
  description: Fannie Mae Selling Guide B3-2-10 — Accuracy of DU Data, DU Tolerances,
    and Errors in the Credit Report.
  coverage_tier: operative
obligations:
- id: fnma-sel-b3-2-10-full
  canonical_id: fnma-sel-b3-2-10-full
  section: Fannie Mae Selling Guide B3-2-10 — Accuracy of DU Data, DU Tolerances,
    and Errors in the Credit Report
  type: do
  tags:
  - regulator-direct
  - fnma
  - selling-guide
  - corpus-expansion
  - tier-operative
  primary_source:
    tier: 1
    authority: Fannie Mae Selling Guide B3-2-10 — Accuracy of DU Data, DU Tolerances,
      and Errors in the Credit Report
    source_class: fnma-guide
    source_url: https://singlefamily.fanniemae.com/media/document/pdf/selling-guide
    snapshot_id: 5f7b8b79da595d76
    fetched_at: '2026-05-25T14:09:57Z'
    content_hash: sha256:98cf85a02861bbe84914a0e339b327c8fc131869a8a573882007bbeea60c5701
    paragraph_quote: 'B3-2-10, Accuracy of DU Data, DU Tolerances, and Errors in the
      Credit Report (12/04/2019) Introduction This topic contains information on the
      accuracy of DU data, DU tolerances, and errors in the credit report, including:
      Ensuring DU Data and Delivery Information Accuracy DU Tolerances for Reﬁnance
      Transaction Loan Amount Changes Other Errors in the Credit Data Non-Applicant
      Debts/Accounts Ensuring DU Data and Delivery Information Accuracy The data submitted
      to DU must reﬂect the loan as it was closed, including occupancy type, product
      type, amortization, loan term, property type, loan purpose, sales price, and
      appraised value. Veriﬁcation documents must be reviewed and the veriﬁed values
      compared to the data submitted to DU. The terms of the closed loan must match
      the terms of the ﬁnal loan caseﬁle submission in DU or fall within the tolerances
      listed in the following table: Data Attribute and Description Trigger Action
      Required • Interest rate increase • Discrepancies between the credit report
      payments and balances and those listed on the online loan application, including
      the presence of debt that is on the credit report but not on the application
      • Additional debt(s) disclosed by the borrower or identiﬁed by the lender during
      the mortgage process • Veriﬁed income is less than the income on the loan application
      submitted to DU DU loans — the result of these changes causes the DTI ratio
      recalculated by the lender to • now exceed 45%, or • increase by 3 percentage
      points or more (if the recalculated DTI ratio is 50% or less) * See resubmission
      examples below. Loan caseﬁle must be resubmitted to DU Published May 6, 2026
      296 Data Attribute and Description Trigger Action Required Interest rate on
      ﬁxed-rate and adjustable-rate mortgages Interest rate decreases, not as the
      result of a permanent interest rate buydown No resubmission required Interest
      rate on ﬁxed-rate and adjustable-rate mortgages Interest rate decreases as the
      result of a permanent interest rate buydown Loan caseﬁle must be resubmitted
      to DU Veriﬁed income used to qualify the borrower for loans subject to income
      limits; for example, as with HomeReady loans. Income is greater than the loan
      application indicates Loan caseﬁle must be resubmitted to DU Assets — Funds
      Required to Close The actual amount of assets required to close the transaction
      exceeds the amount of “Funds Required to Close” per the DU Underwriting Findings
      report If the lender has documented suﬃcient liquid assets to cover the actual
      amount of assets required to close the transaction, no resubmission required
      Otherwise, loan caseﬁle must be resubmitted to DU Assets — Reserves Required
      to be Veriﬁed Due to changes in the actual amount of assets required to close
      the transaction, the veriﬁed amount of reserves is less than the “Reserves Required
      to be Veriﬁed” per the DU Underwriting Findings report If the lender has documented
      reserves that equal at least 90% of the Reserves Required to be Veriﬁed per
      the DU Underwriting Findings report, no resubmission required Otherwise, loan
      caseﬁle must be resubmitted to DU Loan amount tolerances for reﬁnance transactions
      (See below) *Resubmission examples based on DTI triggers Published May 6, 2026
      297 Original DTI Recalculated DTI Resubmission Required 35 40 Yes 44 46 Yes
      46 48 No 46 50 Yes DU Tolerances for Reﬁnance Transaction Loan Amount Changes
      For reﬁnance transactions, Fannie Mae allows the following tolerances to the
      loan amount: The loan amount may increase $500 or up to 1% of the loan amount,
      whichever is less. The loan amount may decrease 5% of the loan amount. The loan
      amount tolerances are permitted provided the new LTV/CLTV does not result in
      changes to the amount of required mortgage insurance coverage, diﬀerent loan-level
      price adjustments, or changes to loan eligibility. For example, if a loan caseﬁle
      is submitted with a loan amount of $100,000 and the appraised value is $120,000
      (which equals 83.3% LTV), the actual loan amount can go up to $100,500 (which
      equals 83.75% LTV) without requiring resubmission. On the other hand, if the
      original loan amount was $108,000 (90% LTV), an increase without resubmission
      is not permitted because it would result in an LTV of 91%. The higher LTV requires
      diﬀerent mortgage insurance coverage, and may result in the loan not being eligible
      for delivery. The loan amount tolerance does not apply to Fannie Mae’s requirements
      regarding the amount of cash back to the borrower on a limited cash-out reﬁnance
      transaction. (See B2-1.3-02, Limited Cash-Out Reﬁnance Transactions.) Other
      Errors in the Credit Data In some cases, errors are the result of reporting
      errors by the credit agency or individual creditors. If the printed credit report
      contains derogatory information, and DU does not recognize or consider the derogatory
      information and does not reﬂect the derogatory information in the DU Underwriting
      Findings report, the lender must take action when information not considered
      by DU would result in a recommendation other than that returned by DU. Published
      May 6, 2026 298 For example, if a borrower’s credit report indicates that the
      borrower had a previous foreclosure, but the DU Underwriting Findings report
      does not reference the foreclosure, a reporting or data transfer error may have
      occurred, thus preventing DU from considering the foreclosure in its analysis
      of the loan. The lender must take action to ensure that the information is considered
      in the risk analysis. Non-Applicant Debts/Accounts In a small number of caseﬁles,
      credit reports may include accounts identiﬁed as possible non-applicant accounts
      (or with another similar notation). DU will include these tradelines in the
      credit risk assessment, and will also include the accounts in the DTI ratio
      when provided on the loan application. See B3-6-05, Monthly Debt Obligations
      for the requirements. Recent Related Announcements The table below provides
      references to recently issued Announcements that are related to this topic.
      Announcements Issue Date Announcement SEL-2019-09 December 04, 2019 Announcement
      SEL-2019-07 August 07, 2019'
  judgment: false
