Outsourced Accounting & CPA Services

Get CPA-level oversight without a CPA-level salary. ATO places qualified accountants, controllers and CPA-credentialed reviewers who own the close, technical accounting positions, audit preparation and tax season capacity for CPA firms and finance teams.

Why clients outsource outsourced CPA services to ATO

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Close and review ownership

Month-end close management, journal review, accruals and flux analysis handled end to end.

Technical accounting support

Revenue recognition, lease accounting, equity and consolidation schedules documented to standard.

Tax season capacity

Scalable preparer and reviewer support for CPA firms during peak filing months, with no permanent headcount.

Audit-ready documentation

PBC schedules, workpapers and auditor requests prepared and tracked to completion.

Exactly what lands on your desk

Scope is agreed in writing before day one, then tracked against SLAs by your client success manager.

We work inside your stack

Your data stays in systems you own. Common platforms our specialists use daily:

 

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Frequently Asked. Questions

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Do you serve CPA firms specifically?

Yes. CPA and accounting firms use ATO for white-labeled preparer, bookkeeping and review capacity that scales up for busy season and down afterwards

How is client data protected?

Work happens from managed offices on company-controlled equipment with restricted access, NDAs, secure document portals and no removable media.