We run the books. We built the software to do it.
Books closed on time. A cap table you can defend. Numbers ready for the raise. Delivered by a team of accountants and engineers, on software we built ourselves.
- Live in five days — guided pilot
- AES-256 · SOC 2 Type II in progress, target Q1 2027
- Audit trail on every AI action
- Connects to your existing stack
Real components. Not mockups.
These are the product's own components — asked for in the chat, answered with sample data. What you see here is what ships.
Agent Chat
A scripted run of the reconciliation agent — tools, confidence scores, and the tie-out included.




















Eleven products. One Ledger.
Every product reads and writes the Ledger — one double-entry core under books, billing, cash, inventory, reporting, and practice. Add one product, or run the stack.
CFO-level intelligence, without the CFO price tag.
DayZero continuously analyzes your books to surface the metrics, insights, and recommendations that used to require a full-time finance team. Scorecards, variance narratives, lending prep, and cash forecasting — generated automatically from your live data.
Financial Scorecards
Real-time KPI dashboards with revenue, margins, burn rate, and runway — auto-generated from your books.
Variance Analysis
AI explains every material variance: what changed, why, and whether it needs attention.
Lending & Fundraise Prep
Generate loan packages, debt schedules, and investor-ready financials in seconds.
Cash Flow Forecasting
13-week rolling forecasts built from actuals, AR aging, and AP schedules — refreshed as your data syncs.
The operating system for company money.
We run your back office on one Ledger — books to inventory to payroll sync — and hand you a close that lands on time. Whether you're bootstrapped or venture-backed, services or product-based.
Invoicing & Payments
Create invoices, accept online payments via Stripe, and auto-reconcile revenue — all in one place.
Inventory & E-Commerce
Track stock, manage purchase orders, and sync products across Shopify and Square automatically.
Payroll, Expenses & Banking
Sync payroll, expenses from Ramp, and bank feeds from Plaid — all reconciled by AI.
Reporting & Budgets
P&L, balance sheet, cash flow, budgets, and custom reports on demand — reviewed by the accountants who close your month.
We deploy our platform and our close playbooks across your book of business — every client on the same Ledger, every close on the same playbook, our team alongside yours.
Multi-Client Management
Manage all your clients from a single dashboard. Switch between books instantly with full isolation.
Client Portal
Give each client real-time visibility into their financials, documents, and action items.
Cross-Client Reporting
Run reports and workflows across your entire book of business from one screen.
AI Workflows
Deploy reusable workflows — monthly close, tax prep, onboarding — across every client at once.
The close, posted as a T-account.
Without DayZero
- 40+ hours/month on manual data entry
- Reconciliation takes days, not minutes
- Errors caught weeks after they happen
- Reports require an accountant and a week
- No visibility into cash runway or burn
- Every client close runs on a different checklist
With DayZero
- AI categorizes & reconciles automatically
- AI-matched bank reconciliation with confidence scores
- Anomalies flagged before they become problems
- P&L, balance sheet, cash flow — on demand
- CFO-grade insights on demand
- One close playbook deployed across every client
Books arrive two weeks late — already history.
Automation compresses the close into the first week.
Reconciliation and reporting run overnight.
The close happens as the month does. Live, always.
Asked, answered.
Pilot. Deployment. Partnership.
Every engagement is scoped. We name the number on the first call.
The close, off your plate.
Book a guided pilot — your books, live on DayZero in five days. Bookkeeping, reconciliation, invoicing, and reporting, run by our team on software we built. You keep full access to every number the whole way.
We’re accountants and engineers. We built the software we always wanted to run books on — then we started running books on it.

