All-in-One US Tax Platform

About the project

I’m building a single cloud solution that lets U.S.-based and foreign entities seamlessly calculate, file, and strategize their taxes. The first release must satisfy the needs of large corporations—complex, multi-state operations with consolidated returns—while remaining expandable to individuals and small businesses later on. Scope of work • Develop calculation engines for income, property, and sales tax that stay current with IRS and state rules. • Integrate e-file workflows that generate ready-to-submit federal and state forms. • Add real-time advisory features: scenario modeling, credit optimization, and audit-trail reporting. • Provide role-based dashboards, multi-entity management, and SOC-2-ready security. Preferred tech (open to suggestions) React/Next.js front end, Python or Node micro-services, PostgreSQL, AWS, plus integration with the IRS Modernized e-File (MeF) API or similar tax SDKs. Key deliverables 1. Technical architecture and data model 2. Clickable UI prototype 3. MVP with automated tests 4. Deployment scripts and CI/CD pipeline 5. Documentation and final hand-off Acceptance criteria • Accurate 2023-24 calculations for federal and at least two pilot states across income, sales, and property taxes. • Successful end-to-end e-file in a sandbox environment. • Advisory module delivers savings scenarios within 2 % of CPA-verified models. • Codebase meets OWASP Top 10, GDPR/CCPA, and SOC-2 controls. If you’ve launched fintech or reg-tech platforms that process high-volume financial data, share your approach and timeline. Together, we’ll turn this into the next billion-dollar tax solution.

Skills required