# cross-border-fbar

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Eli Fayerman](https://cerebralvalley.ai/u/SadhakaDev)
- **GitHub:** https://github.com/fayerman-source/cross-border-fbar
- **Demo video:** https://youtu.be/BL4UVxhOP9Y
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2900

A review tool for U.S. tax preparers who serve expats and immigrants with foreign bank accounts. The FBAR asks for each account's highest balance during the year, and a brief spike between month ends is easy to miss, especially on statements in another language or in phone photos.

Preparers describe the problem themselves. In a widely upvoted r/taxpros thread, one wrote about a client with 15 foreign accounts and 47 phone photos of statements, some blurry, some sideways: "I spent 3 hours squinting at photos trying to make out account numbers and max balances." The CPAs and enrolled agents replying said a first year's FBARs often take longer than the tax return, that they read statements with Google Translate on their phones, and that many of them refuse photos altogether.

Muse Spark reads each statement page. Deterministic code then recomputes every balance, finds each account's highest observed balance, converts it at the Treasury year-end rate and raises review items. The preparer clicks a highest balance to see its source line, corrects any misread number, acknowledges each review item and signs off. The client then gets a summary in Korean with the English beside it for the preparer.

In the demo, a fictional client's month-end balances add up to $121,350, but her highest balances at any point add up to $373,618.

Everything was built during the hackathon, on synthetic data only. Results on the 49-page test set, including the errors, are in EVAL.md.

Live demo (recorded readings, no install): https://sadhakadev-fbar-worksheet-demo.hf.space

## More from Meta Global AI Developer Hackathon

- [RackWatch](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2897)
- [Stealth_Founder](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2898)
- [Jacob Spero's AI films](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2899)
- [Poralekha Bondhu](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2901)
- [StackCheck](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2902)
- [vrajhna](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2903)

---

Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2900. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt