# Building self-improving tax agents with Codex

DevFeed: [Building self-improving tax agents with Codex](<https://devfeed.tech/articles/building-self-improving-tax-agents-with-codex-6323.md>)

Original publisher: [Read original article](<https://openai.com/index/building-self-improving-tax-agents-with-codex>)

Published: 2026-05-27T07:00:00Z

Content type: article

Language: en

Sources: [OpenAI News](<https://devfeed.tech/sources/openai-news.md>)

Topics: [codex](<https://devfeed.tech/topics/codex.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [OpenAI](<https://devfeed.tech/topics/openai.md>), [data](<https://devfeed.tech/topics/data.md>), [Deployment](<https://devfeed.tech/topics/deployment.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [agentic](<https://devfeed.tech/tags/agentic.md>), [agents](<https://devfeed.tech/tags/agents.md>), [ai](<https://devfeed.tech/tags/ai.md>), [autonomous](<https://devfeed.tech/tags/autonomous.md>), [codex](<https://devfeed.tech/tags/codex.md>), [complexity](<https://devfeed.tech/tags/complexity.md>), [data](<https://devfeed.tech/tags/data.md>), [deployment](<https://devfeed.tech/tags/deployment.md>), [efficiency](<https://devfeed.tech/tags/efficiency.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [openai](<https://devfeed.tech/tags/openai.md>), [production](<https://devfeed.tech/tags/production.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

## AI overview

OpenAI, Thrive Holdings, and Crete developed Tax AI with Codex to create a self-improving tax-preparation agent. The system uses practitioner feedback, evaluation infrastructure, and production data to improve autonomously while automating complex return preparation.

## Source excerpt

See how OpenAI, Thrive, and Crete built a self-improving tax agent with Codex, automating filings, improving accuracy, and accelerating workflows.