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SPECIFICTION
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SuperTaxAgent

github.com

Free plan WindowsmacOSLinux
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Spec score 7.9 #71 of 149 in Tax Software

Spec sheet

Purpose
SuperTaxAgent is an open-source AI-powered tool for preparing US federal tax returns inside Claude Code.Read 12 Oct 2026 · github.com
Intended users
The project describes itself as software for individuals preparing their own tax returns and says it is intended for self-preparation.Read 12 Oct 2026 · github.com
Free plan
YesRead 22 Sep 2026 · github.com
Privacy
The project says tax profiles and calculations stay locally in a gitignored data directory and imported PDFs are never uploaded.Read 12 Oct 2026 · github.com
Support
The maker lists an email address for collaboration, bug reports that users do not want to make public, and general contact.Read 12 Oct 2026 · github.com
License
The project is licensed under Apache License 2.0 and permits free personal and commercial use, modification, and distribution with attribution requirements.Read 12 Oct 2026 · github.com
Calculations
It calculates income, AGI, deductions, tax brackets, credits including CTC and EIC, and refund or amount owed, mapping results to Form 1040 lines.Read 12 Oct 2026 · github.com
Comparison and contributions
Users can compare its return with a TurboTax PDF, classify discrepancies, generate skill fixes, and submit anonymized rule improvements as a GitHub pull request.Read 12 Oct 2026 · github.com
Document import
It parses W-2, 1099-B, 1099-DIV, 1099-INT, 1099-DA, and 1099-MISC documents from PDFs or images and auto-detects the document type.Read 12 Oct 2026 · github.com
Improvement data
The project says self-evolution pull requests contain only anonymized rule fixes without personally identifiable information and require explicit user review.Read 12 Oct 2026 · github.com
Investment income
YesRead 22 Sep 2026 · github.com
Limits
The README lists no state returns, no e-filing, no AMT calculation, and no Schedule C support; it says Schedule C is coming soon.Read 12 Oct 2026 · github.com
Rental income
YesRead 22 Sep 2026 · github.com
Return output
It can fill an official IRS Form 1040 PDF that is ready to print and mail.Read 12 Oct 2026 · github.com
Self-employment support
NoRead 22 Sep 2026 · github.com
State filing
noneRead 22 Sep 2026 · github.com
Supported year
The README specifies the 2025 tax year for filing in 2026, with year-specific brackets, credits, and standard deduction amounts.Read 12 Oct 2026 · github.com
Tax topics
Its domain skills cover RSUs and ESPP, rental income, wash sales, and cryptocurrency topics including cost basis, staking, and DeFi.Read 12 Oct 2026 · github.com

Plans and prices

Free Free Open-source; US federal returns; 2025 tax year; no state returns or e-filing; Form 1040, Schedule B, Schedule D, and Form 8949 Read 12 Oct 2026 · github.com

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Where Specifiction places it

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