Image: github.com · Actual Mac preview.10 after normal restart, saved refund10963
Tax Reborn: personal tax calculations on desktop and Android
An offline US tax preparation app, with REA used to trace how the original software calculated results.
Credits
Earliest dated source:
The full story
Tax Reborn is an offline US personal-tax app for Windows, Mac and Android from the maintainer of Ledger Reborn. REA was used to trace how existing tax software arrives at its numbers. The calculations themselves were written independently and checked separately.
Preview 10 handles the alternative minimum tax (AMT) path from start to finish, among other things. It works out the liability, keeps it after a restart and fills all 29 lines of Form 6251 Part III in the official IRS 2025 PDF. Each release comes with installers, source code and recorded test runs on every platform. It is still a preview, so treat its output as something to check, not to file blindly.
How it was done
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From the maker's own write-up or code. We summarise what they report; we haven't tested it ourselves.
- REA community: Project #000002: Tax Reborn now runs on desktop and Android (code + downloads)Repository account: morlutoPublished
Release notes for Preview 10, with what works, example figures and download links.
- The code: github.comRepository account: lxistired
Linked in the post.