What alternative data sources are used in credit scoring and what are the regulatory concerns?

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AcadiFi · Accepted Answer

Alternative data (often called alt-data or non-traditional data) refers to information not found in standard credit bureau files. The main categories are cash-flow data (bank account transaction history pulled via Plaid, MX, or Finicity), rental payment history (Experian RentBureau, RentTrack), telecom and utility payment records (used in FICO XD and Experian Boost), public records beyond bureau coverage, employment and income verification data (via payroll APIs like Pinwheel), and educational/occupational data used by some student-loan refinancers.

The business case is strong: roughly 45 million US adults are credit invisible or unscorable, and cash-flow data can extend credit responsibly to thin-file consumers. A fintech like Meadowbrook Financial might approve 15 to 25% more applicants at the same bad rate by layering 12 months of bank transactions onto a thin bureau file.

The regulatory concerns are substantial. First, FCRA applies whenever data is used for credit decisions — so data furnishers and consumer reporting agencies must be FCRA-compliant, with dispute and adverse action processes. Second, ECOA disparate impact testing must be performed; some alt-data (e.g., educational attainment) has shown proxy bias for protected classes. Third, the CFPB has issued guidance emphasizing that 'black-box' alt-data models must still produce specific, accurate adverse action reason codes. Fourth, data privacy — GLBA, state privacy laws like CCPA, and open banking rules govern consent.

For FRM candidates, expect questions on the tradeoff between lift and fair lending compliance.

What alternative data sources are used in credit scoring and what are the regulatory concerns?

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