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Rational

AI Employees for Accounting

Rational builds AI coworkers for accounting firms. Our agents onboard themselves to the firm, build a company brain, and do the work, from month-end close to tax prep. In addition, they follow up with clients and communicate with the right members of your team.
Active Founders
Jibril Moinuddin
Jibril Moinuddin
Founder
CEO at Rational. Previously founded STEMplicity Education. Dropped out of University of Michigan.
Christ Xu
Christ Xu
Founder
CTO at Rational. Previously exited for $400K and youngest Senior SWE at Tencent. Jane Street ML Engineer and OpenAI SWE intern. 2x IOI Camp, IMO Camp, published algorithm researcher.
Company Launches
Rational: AI Employees for Accounting
See original launch post

Rational builds AI employees for accounting and tax firms. They onboard themselves to your firm, handle real work within your existing tools, and keep a human in control of every decision that matters — so firms can finally say yes to the clients they've been turning away.

https://youtu.be/mcF30tmNLTg

The problem

Accounting has an economics problem: demand is there, capacity isn't. Most firms turned away paying clients last year simply because they didn't have the people to do the work, and the talent pool keeps shrinking as accountants leave the profession faster than firms can replace them. More software hasn't fixed this — and a chatbot that summarizes a spreadsheet definitely hasn't. The parts of accounting that actually matter, like judgment, trust, and sign-off, should stay human. Everything around them shouldn't have to be a bottleneck.

Our solution

Rational’s AI employees conduct interviews with each role on your team, creating a mental map of your firm’s workflows, inefficiencies, and who to route approvals to. After you connect them to your current stack, they simply do the work, 24/7. They learn from every single interaction and become more accurate over time — and their insights are completely isolated for your firm. They’re truly your AI employees.

Rational already works with every firm size: from individuals to Fortune Global 500 companies. Doing everything from document-chasing to research to tax preparation, our employees supplement your firm’s labor without the significant onboarding curve or cost of a new hire.

Book a Demo

Stop saying no to clients or retaining inefficiencies in your firm. Hire your first AI employees today, at https://rational.to/book-demo.

Not an accounting firm but know someone in PE, advising, or accounting? We would love an introduction. Email founders@rational.to.

Rational
Founded:2026
Batch:Summer 2026
Team Size:2
Status:
Active
Location:San Francisco
Primary Partner:Jared Friedman