Developer launches agent-friendly open-source double-entry bookkeeping tool

YC-backed founder releases local-first accounting app designed for AI agents to assist with bookkeeping and tax prep, built on Bun and Postgres with no cloud telemetry.

Open-source 1040 tax software built entirely by AI agents

Developer creates functional 1040 tax filing software using AI agents, demonstrating practical automation of complex tax logic and suggesting potential for open-source tooling in tax compliance.

1 more from HN: Accounting & AI

Java library simplifies Norwegian VAT filing via Altinn 3

Developer releases open-source Java library automating Norwegian VAT (MVA) filing, handling complex auth chains and Skatteetaten submission rules—distilled from 3 years building accounting SaaS.

1 more from YC: Accounting & AI Startups

Open-source synthetic bank statements enable parser testing for accounting tools

Developer releases 5 synthetic bank statement PDFs with 36+ documented parsing edge cases to help accounttech builders test extraction accuracy across different banks and formats.

qbo-cli brings AI agents direct access to QuickBooks Online data

Developer releases open-source CLI tool enabling AI agents to query and automate QuickBooks Online tasks with context-efficient interfaces for financial insights and accounting workflows.

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