Credit Scoring: Alternative data integration for better risk assessment

This case study shows how a financial institution improved credit scoring by integrating alternative data sources, enabling fairer lending decisions, stronger risk assessment, and broader customer inclusion.
Credit Scoring: Alternative data integration for better risk assessment

Project Overview

Industry: Banking / Financial Services

Application: Credit scoring & risk modeling

Project Duration: 7 months

Team Size: 2 data scientists, 2 ML engineers, 1 credit risk officer

Business Challenge

Traditional credit scoring models excluded many potential borrowers, leading to missed opportunities and biased decisions.

  • Limited reliance on traditional credit bureau data
  • High rejection rates for thin-file or no-credit customers
  • Risk of inaccurate risk assessments in underserved markets
  • Regulatory and fairness concerns about credit accessibility
  • Slower approval times due to manual risk reviews

Our Approach

We designed an AI-driven credit scoring framework that incorporated alternative data sources to build a more inclusive and predictive risk model.

  • Integration of telecom, utility, and rental payment histories
  • Use of e-commerce and digital footprint data
  • Machine learning models for enhanced risk prediction
  • Explainable AI tools to ensure transparency in decisioning

AI-Powered Solution

The solution combined traditional credit data with alternative datasets, increasing coverage and improving scoring accuracy.

  • Multi-source data ingestion pipeline
  • Predictive modeling with gradient boosting and ensemble methods
  • Fairness and bias detection mechanisms
  • Compliance-friendly explainability dashboards

Implementation Process

The rollout was executed in structured phases, from data exploration to full production deployment.

  • Phase 1: Data collection from alternative providers (utilities, telecoms, e-commerce)
  • Phase 2: Model development and validation with combined datasets
  • Phase 3: Pilot with 15,000 loan applications
  • Phase 4: Scaled rollout across all lending products

Quality Assurance

Ensuring fairness, compliance, and accuracy was central to deployment and monitoring.

  • Bias audits across demographic segments
  • Backtesting against historical repayment performance
  • Continuous monitoring of model drift
  • Human-in-the-loop reviews for borderline applications

Results

Productivity & Efficiency

  • Application processing time reduced by 50%
  • Automated scoring enabled faster decision cycles
  • Manual review load decreased by 60%

Decision Quality

  • 20% improvement in default prediction accuracy
  • Expanded credit eligibility by 25% in thin-file markets
  • Higher approval consistency across customer segments

Business Impact

  • Expanded loan portfolio by $50M within first year
  • Reduced non-performing loans by 15%
  • Improved financial inclusion and brand reputation

Technical Implementation

The solution was designed to scale across multiple geographies with strict compliance controls.

  • Data Sources: Credit bureau + alternative datasets (utilities, telecom, e-commerce)
  • Models: Gradient boosting, ensemble ML methods
  • Infrastructure: Cloud-native data pipelines and scoring engine
  • Compliance: Explainability & fairness checks embedded in workflows

Key Features

  • Multi-source alternative data integration
  • AI-powered scoring engine
  • Real-time risk dashboards
  • Fairness and explainability reporting


Client Feedback

With alternative data integrated into credit scoring, we’ve expanded access to thousands of new customers while improving portfolio performance and meeting compliance requirements.

Implementation Timeline

Before AI Implementation

  • Reliance on limited bureau data
  • 40% rejection rate for thin-file customers
  • Slower approval times (3–5 days)
  • Higher default risk in underserved segments

After AI Implementation

  • Broader credit coverage (+25% eligible customers)
  • Approval times reduced to <24 hours
  • 20% more accurate default prediction
  • 15% drop in non-performing loans

Quality Control Process

Controls ensured models remained accurate, unbiased, and compliant while scaling across regions.

  • Regular audits for fairness and compliance
  • Decision logs stored for regulatory review
  • Continuous monitoring of repayment outcomes
  • Customer feedback loop for process refinement

Implementation Challenges

Integrating alternative data presented both technical and regulatory hurdles.

  • Data standardization across multiple providers
  • Privacy and consent management for new data sources
  • Ensuring fairness and avoiding unintended bias
  • Legacy system integration for real-time scoring

Continuous Improvement

The system evolves continuously, leveraging new data sources and performance insights.

  • Quarterly retraining with updated datasets
  • Expansion of data providers to strengthen coverage
  • A/B testing of risk models for portfolio optimization
  • Ongoing fairness monitoring and adjustments


Future Enhancements

The client plans to expand further into data-driven credit innovations and inclusion strategies.

  • Integration of open banking transaction data
  • Use of mobile financial behavior data
  • Personalized loan pricing based on holistic risk profiles
  • Regional expansion into emerging markets


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