Accounting tools that earn their place
Purpose-built software for accounting firms. Each tool does one thing exceptionally well.
Why Cairn
Software that understands how firms actually work
Purpose-built for accounting firms
Not generic project management repackaged. Every feature exists because an accounting firm needed it.
Tools that do one thing well
Each app solves a specific workflow. Build your stack with one or several — they work independently and better together.
Your data gets its own walls
Single-tenant architecture means every firm's data lives in its own isolated environment.
flagship
Cairn Statements
Upload bank statement PDFs. Cairn extracts every transaction, learns your firm's categorization patterns, and syncs directly to QuickBooks — Online or Desktop.
- Upload bank statement PDFs and extract transactions with AI
- Auto-categorize transactions using firm-specific patterns that learn over time
- Review and reconcile with a human-in-the-loop workflow
companion
Cairn Clients
A wall-mounted status board for your firm. See every client, every bank account, every month at a glance. Tab in, update a status, tab out.
- Manage your client roster with team member assignments
- Track monthly reconciliation status per bank account
- Checklist-driven task workflows for each account period
Build Your Stack
Every firm's cairn looks different
Each tool is a stone. Add what your firm needs — they work independently and better together through Cairn Stack.
Cairn Stack
The central portal that ties your entire Cairn suite together.
- Single sign-on across every Cairn app with Auth0
- Launch any app from one dashboard — no re-authentication
- Manage subscriptions, modules, and billing in one place
Included with any subscription
Learn moreCairn Statements
AI-powered bank statement processing and QuickBooks sync for accounting firms.
- Upload bank statement PDFs and extract transactions with AI
- Auto-categorize transactions using firm-specific patterns that learn over time
- Review and reconcile with a human-in-the-loop workflow
from $99/mo
Learn moreCairn Clients
Monthly reconciliation engagement tracking for accounting firms.
- Manage your client roster with team member assignments
- Track monthly reconciliation status per bank account
- Checklist-driven task workflows for each account period
from $39/mo
Learn moreCairn Returns
Coming SoonPersonal and business tax return management for accounting firms.
- Search-first interface — find any person, household, or entity instantly
- Dual-module design for personal returns (1040) and business returns (1065/1120)
- Document checklist tracking — know exactly what's been received and what's missing
In development
Cairn Docs
Coming SoonClient-facing document upload portal for accounting firms.
- Branded upload portal clients can access without creating an account
- Automatic organization by client, tax year, and document type
- Status tracking so your team knows what's arrived and what's outstanding
Planned
Cairn Toolbox
Coming SoonAccounting calculators and quick-reference tools.
- Depreciation calculators with MACRS and straight-line methods
- Payroll tax reference tables updated each filing season
- Entity comparison worksheets for client advisory conversations
Planned
Ready to build your stack?
We're onboarding firms individually to ensure every experience is exceptional. Leave your info and we'll reach out.