
During three months contributing to PolicyEngine/policyengine-us, Ben Aogorek enhanced tax policy modeling pipelines by delivering eight features and resolving three bugs. He focused on backend development and data modeling, implementing Qualified Business Income Deduction (QBID) improvements aligned with evolving tax regulations and optimizing QBI calculations for accuracy and maintainability. Using Python and YAML, Ben refactored code for clarity, split income variables into dedicated files, and migrated congressional district mapping from UCGID to integer-based geoids, improving data integrity and deployment safety. His work included comprehensive test coverage, changelog management, and code formatting, demonstrating depth in policy engine development and software architecture.

August 2025 monthly summary for PolicyEngine/policyengine-us: Delivered a migration from UCGID to congressional_district_geoid (integer) with test suite simplifications and formatting improvements. This change enhances data integrity for congressional district mappings, reduces test noise, and speeds CI feedback, enabling safer deployments and easier future maintenance.
August 2025 monthly summary for PolicyEngine/policyengine-us: Delivered a migration from UCGID to congressional_district_geoid (integer) with test suite simplifications and formatting improvements. This change enhances data integrity for congressional district mappings, reduces test noise, and speeds CI feedback, enabling safer deployments and easier future maintenance.
June 2025 — PolicyEngine/policyengine-us: KEY DELIVERABLES include QBID calculation improvements aligned with updated tax regulations, SSTB handling, phase-ins, limits, and cross-cycle parameter updates; refactors simplify QBID: removing qbid_amount and reintroducing qbi_deduction_amount; TCJA parameters reintroduced; tests and data updated. This work improves regulatory compliance, accuracy, maintainability, and business value by enabling reliable tax computations under evolving rules and reducing risk of incorrect deductions across cycles.
June 2025 — PolicyEngine/policyengine-us: KEY DELIVERABLES include QBID calculation improvements aligned with updated tax regulations, SSTB handling, phase-ins, limits, and cross-cycle parameter updates; refactors simplify QBID: removing qbid_amount and reintroducing qbi_deduction_amount; TCJA parameters reintroduced; tests and data updated. This work improves regulatory compliance, accuracy, maintainability, and business value by enabling reliable tax computations under evolving rules and reducing risk of incorrect deductions across cycles.
In May 2025, PolicyEngine/policyengine-us delivered substantial QBID/QBI improvements, robust uprating fixes, and key maintenance work that enhanced accuracy, performance, and maintainability for tax form preparation pipelines. The work focused on business value—ensuring precise QBID calculations, comprehensive test coverage, and cleaner, more maintainable code—while laying groundwork for future tax year readiness.
In May 2025, PolicyEngine/policyengine-us delivered substantial QBID/QBI improvements, robust uprating fixes, and key maintenance work that enhanced accuracy, performance, and maintainability for tax form preparation pipelines. The work focused on business value—ensuring precise QBID calculations, comprehensive test coverage, and cleaner, more maintainable code—while laying groundwork for future tax year readiness.
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