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OpenTax

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Broker limitation
Automated broker import is documented for Robinhood CSV and Fidelity PDF; Vanguard, Schwab and E*TRADE support is planned.opentax.evokelab.ai · read 14 Oct 2026
Company information
The reviewed official pages do not state a legal company name, headquarters or founding year.opentax.evokelab.ai · read 14 Oct 2026
Correctness testing
The trust center reports more than 2,300 automated tests, 20-plus IRS publications and 10 validated scenarios.opentax.evokelab.ai · read 14 Oct 2026
Data-loss risk
Because data remains in the browser, clearing browser data or changing devices can erase progress.opentax.evokelab.ai · read 14 Oct 2026
Design objective
The project design document describes a free-first, open-source filing assistant focused on auditability and explainable calculations.github.com · read 14 Oct 2026
Deterministic engine
The rules engine uses pure deterministic functions and stores monetary values as integer cents.opentax.evokelab.ai · read 14 Oct 2026
Developer API
Developers can use TaxService directly in Node.js to create returns, compute results, and trace return lines.opentax.evokelab.ai · read 8 Oct 2026
Disclaimer
OpenTax says it is not affiliated with the IRS and is not tax advice.opentax.evokelab.ai · read 8 Oct 2026
Document import
Users can import W-2s, 1099s and broker statements, with OCR performed locally.opentax.evokelab.ai · read 14 Oct 2026
E-filing limitation
Electronic filing is unavailable; users must use IRS Free File or mail printed returns, with e-file listed as future work.opentax.evokelab.ai · read 14 Oct 2026
Explainability
Computed values include links to source documents, IRS citations and intermediate calculation traces.opentax.evokelab.ai · read 14 Oct 2026
Federal forms
The product supports Form 1040 and schedules including A, B, C, D, E and SE for tax year 2025.github.com · read 14 Oct 2026
Filing output
OpenTax generates IRS-ready PDFs to download, print, and mail; e-filing support is described as being on the roadmap.opentax.evokelab.ai · read 8 Oct 2026
Guided interview
The standalone workflow uses a 13-step interview covering income, deductions, credits and dependents.opentax.evokelab.ai · read 14 Oct 2026
Integration
The OpenClaw plugin provides 16 tools, REST endpoints, and server-sent event streaming for compatible AI agents.opentax.evokelab.ai · read 8 Oct 2026
Issue tracker
The repository's GitHub issues page showed no open issues when opened.github.com · read 14 Oct 2026
License
The repository is distributed under the MIT License, allowing use, modification and redistribution subject to its notice.github.com · read 14 Oct 2026
Local persistence
Standalone return data is stored in browser IndexedDB and is not transmitted to a server.opentax.evokelab.ai · read 14 Oct 2026

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