Developer Access
TaxCase Review Data API
Programmatic access to IRS tax lien intelligence for researchers, accountants, lenders, and title companies. Our REST API provides real-time access to the same data powering our dashboards and reports.
REST API
JSON responses
API Keys
Secure authentication
Real-time
Weekly updates
Available Endpoints
GET/api/v1/states
List all monitored states with summary statistics
GET/api/v1/states/{state}/counties
County-level lien data for a specific state
GET/api/v1/liens/trends
Weekly collection trends across all states
GET/api/v1/notices/volume
IRS notice volumes by type and region
GET/api/v1/industries
Industry-level enforcement metrics
GET/api/v1/datasets/{id}
Download specific dataset in CSV or JSON
Use Cases
- Researchers: Academic analysis of IRS enforcement patterns
- Accountants: Client risk assessment and planning
- Lenders: Underwriting and due diligence
- Title Companies: Lien verification and monitoring
- Legal Professionals: Case research and trend analysis
Rate Limits & Pricing
API access is currently in private beta. We're working with early partners to refine the API before public launch. Join the waitlist to be notified when access opens.