AI bookkeeping for startups
We close your books, file your taxes, and give you real numbers you can hand to investors. Our AI handles the transaction work. Our team makes sure it's right.
Trusted by companies backed by the best
You don't need to hire a bookkeeper
We learn your business, set up AI agents for your workflows, and handle your books every month. You get clean financials you can share with investors—without thinking about it.
What you get
Monthly bookkeeping, tax filing, and real support
Investor-ready reports
P&L, balance sheet, cash flow—ready when you need them
Burn rate & runway
Always know how long your cash will last
Tax filing included
Federal, state, quarterly estimates—we handle it
99%+ accuracy
Our AI categorizes transactions better than a human bookkeeper
Text us anytime
US-based team that actually responds
Startup metrics
MRR, ARR, CAC, LTV—calculated automatically
What founders say
Real feedback from real startups
“Cranston gave us investor-ready financials for our Series A in minutes, not weeks. Our investors were impressed with the quality.”
“We went from spending 40 hours/month on bookkeeping to zero. The AI categorizes everything perfectly.”
“The burn rate tracking helped us extend our runway by 6 months. We caught spending patterns we never would have noticed.”
“From pre-revenue to $10M ARR, Cranston scaled with us seamlessly. No migration headaches.”
“The YC discount made it a no-brainer during our cash-strapped early days. Now we're Series A and still using them.”
“Our investors love the real-time dashboards. Board meetings are now about strategy, not explaining our numbers.”
Cranston vs Traditional Accountants
See why founders switch to AI-powered bookkeeping
Pricing that scales with you
Pay based on your monthly expenses
Under $30k/mo expenses
No credit card required • 30-day free trial
Everything you need
- Full bookkeeping automation
- Monthly financial statements
- Expense categorization
- Bank reconciliation
- Basic financial insights
Need a custom solution? Contact our sales team
Y Combinator Exclusive
Verify your YC status for special pricing
Enter your YC verification URL to unlock founder pricing
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Questions from founders
Answers to what we get asked most
Yes—50% off for all YC companies and alumni. We also offer special rates for Techstars, 500 Startups, and other accelerators. Email us to get set up.
99%+ accuracy on transaction categorization. Our AI learns your business patterns and applies them automatically. Our team reviews everything before closing each month.
Yes. We're a US-based team and we actually respond. Since we're not spending all day on data entry, we have time to help you understand your numbers when you need it.
Pull reports anytime from the dashboard—P&L, balance sheet, cash flow. They're always up to date. You can also give investors direct access with customizable permissions.
Yes. Federal and state filings, quarterly estimates, 1099s—we handle it. You don't have to scramble at year-end because your books are always ready.
We scale with you. From pre-revenue to Series A and beyond, no migration needed. Pricing grows with your revenue, not your transaction count.
No contracts. Cancel anytime. Your data is always exportable.
Sign up, connect your banks and tools, and we take it from there. Setup takes about 5 minutes. We'll reach out to learn about your business and set up your workflows.
Get your books done right
We handle your bookkeeping so you can focus on building. YC companies get 50% off.
Get StartedNo credit card required to start