The problem with running multiple entities on single-entity software
Most accounting tools were designed for one business. When an owner picks up a second LLC — a new location, a sister DBA, a holding company, a real estate entity — the workaround is almost always the same: open another QuickBooks file, set up another login, and hope the books stay parallel. By year three, there are five files, three bookkeepers with different conventions, and a CPA charging hourly to reconcile chart-of-accounts mismatches before tax season.
Consolidated reporting becomes a quarterly fire drill. Someone exports trial balances from each file, dumps them into a spreadsheet, manually maps account codes, eliminates intercompany balances by hand, and emails a PDF that's stale by the time it lands. Department-level P&L is even worse — most owners give up entirely, because tagging every transaction with a class or location across multiple files is a discipline nobody enforces consistently.
The result is predictable. Owners can't see which location is actually profitable. Intercompany loans drift out of balance. CPAs spend audit prep cleaning up coding errors instead of advising on tax strategy. And the warehouse manager who just needs to see their own P&L gets full access to the parent company's books because permissions are file-level, not role-level.
How it works
Per-business workspaces with isolated ledgers
Every entity in ATCS is a fully isolated workspace with its own general ledger, chart of accounts, vendor catalog, customer list, and close cycle. A transaction posted to Entity A never bleeds into Entity B. Each business has its own audit log, its own bank feeds, and its own approval rules. You get the data integrity of separate files without the operational pain of separate logins.
Department and location coding inside each business
Within each entity, transactions can be tagged by department and location at the line-item level. This is what makes department-level P&L possible without spreadsheet acrobatics — every invoice, bill, journal entry, and payroll allocation carries its dimensional coding, and reports filter natively. A restaurant group can see margin by store. A construction firm can see overhead by job site. A holding company can see SG&A by subsidiary department.
Role-based access scoped per business
Permissions in ATCS are scoped per entity, per role. The owner sees everything across the portfolio. The CPA gets read-only access to all books for tax prep. The warehouse manager at Location 3 sees only Location 3's expenses and inventory — not headquarters, not payroll, not the sister LLC. A bookkeeper can have full edit rights on Entity A and view-only on Entity B. You define the role once; ATCS enforces it everywhere.
Business switcher and per-entity reports
A single user with access to multiple entities switches between them from a dropdown in the header — no logout, no re-auth, no second browser. The AI assistant is business-aware, so when you ask "what did we spend on advertising last month," it answers for the entity you're currently in, not a blended portfolio number. Reports run per-entity by default, with consolidated views available when you need the rollup.
What you get
- Multiple entities under a single ATCS deployment
- Isolated general ledger, chart of accounts, and vendor catalog per business
- Department and location dimensions on every transaction
- Per-entity close cycles so one business can close March while another is still open
- Per-entity audit log with user, timestamp, and field-level change tracking
- Role-based access control scoped per business, not just per workspace
- Business switcher in the header for users with multi-entity access
- Business-aware AI assistant that scopes queries to the active entity
- Consolidated P&L, balance sheet, and cash flow across selected entities
- Intercompany account tracking with matched due-to / due-from posting
- CPA collaboration mode — invite your accountant once, grant per-entity access
- Per-entity bank feeds, reconciliation queues, and document storage
FAQ
How are intercompany transactions handled?
ATCS supports designated intercompany accounts on each entity's chart of accounts. When you post a transaction between two entities you control, the system creates the matched due-to / due-from entries on both sides and flags any imbalance during the close. You can run an intercompany reconciliation report any time to verify both ledgers tie out before consolidating.
Can we generate a consolidated P&L?
Yes. Select any combination of entities and ATCS produces a consolidated profit and loss, balance sheet, or cash flow statement. Intercompany eliminations are applied automatically based on the accounts you've designated, so the consolidated view reflects true external activity rather than gross inter-entity volume.
Does each entity have its own chart of accounts?
Each entity maintains its own chart of accounts. You can start from a template, copy from an existing entity, or build from scratch. For consolidated reporting, ATCS maps accounts across entities using a shared reporting structure — so Entity A's "Office Supplies — 6210" and Entity B's "Office Supplies — 5400" roll up into the same line on the consolidated P&L.
What about different fiscal year ends?
Each entity has its own fiscal calendar and close cycle. A holding company on a calendar year and an operating LLC on a June year-end coexist without conflict. Reports respect each entity's fiscal periods, and the close process runs independently per business.
Can a user belong to multiple entities with different roles?
Yes. Role assignment is per user, per entity. Your controller might be an Admin on three entities and a Viewer on a fourth. Your CPA is typically granted Read-Only across the portfolio. Your location manager is scoped to a single entity and a single location within that entity. The business switcher only shows entities the user has access to.
Where to next
Pricing scales with employee count and transaction volume, not entity count — add as many LLCs, DBAs, and locations as your structure requires without per-entity upcharges. Use the pricing calculator to size your monthly cost, or read how ATCS handles bookkeeping & reconciliation across every entity in your portfolio.