Company

We're rebuilding the back office of the tax profession.

Petal is built by Noctworks, a small team that believes the best of the profession is its judgment, and the worst of it is the busywork that buries it.

Tax and accounting work has never been more in demand, and the people who do it have never been more stretched. The answer can’t be longer nights.

We started Petal to give firms a tireless, careful colleague: one that reads every source, drafts with citations, reconciles the books, and chases the missing documents, overnight, so the morning opens with decisions instead of data entry.

We’re a research-driven team building the definitive AI for tax, accounting, and audit. We work in the open with a small cohort of founding firms, and we ship what they need next.

2026
Founded
California
Where we build
50
Founding firm spots
What we believe

How we work

Judgment first

The machine does the volume. The preparer makes the calls. We design every flow to keep it that way.

Cited or it didn't happen

Nothing leaves Petal without a source. If we can't show our work, we don't ship the answer.

Built with firms

Every feature starts with a real practice and a real return. Founding firms shape what we build.

Join the firms building Petal

Claim a founder spot