YC Summer 2026 (S26) company

Luca IQ

API-first tax engine for CPA firms and developers

About Luca IQ

Luca IQ is an API for deterministic tax calculation and an IRS Authorized e-filing engine - the foundation for accounting firms and fintechs building on tax.

Public traction evidence

Each signal links to the public source used for attribution.

  1. LinkedIn

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  2. LinkedIn

    We're hiring a Sales Intern at Luca IQ.

    We're hiring a Sales Intern at Luca IQ. Are you a student who loves talking to people and wants to break into startups? Let's talk. Luca IQ is building the future of accounting automation for tax firms. We just wrapped our first tax season with customers, and now we're scaling...

  3. YouTube

    Luca IQ (YC S26) Launch

    Luca IQ is a modern professional tax software made by CPAs for CPAs Learn more at lucaiq.com

  4. LinkedIn

    Check out our updated website!

    Check out our updated website! lucaiq.com