For CPA Firms
Client Accounting Services (CAS): How Offshore Staffing Fits In
CAS is a delivery business, and delivery businesses run on capacity. Here's how offshore bookkeepers fit the CAS model profitably.
CAS is a delivery business
Client accounting services sound like an advisory offering, but under the hood CAS is a delivery business — monthly bookkeeping, payroll, AP/AR, and reporting delivered on a cadence. Advisory is the top of the pyramid; delivery is the base. The base is where margin lives or dies, and the base is where capacity is the constraint.
The delivery layer is the bottleneck
Most CAS practices don't stall for lack of clients — they stall for lack of delivery capacity. The partner sells, the reviewer owns quality, and the bookkeeper does the monthly work. When the bookkeeper layer is expensive or hard to hire, you can't take on new CAS clients profitably. The practice plateaus.
Where offshore bookkeepers fit
Offshore bookkeepers sit in the delivery layer — full-time, dedicated, trained on your close checklist. They do the monthly work that CAS is built on: reconciliations, categorization, close prep, AP/AR, payroll. Your reviewers and partners spend their time on review and advisory, not on data entry. That's what makes CAS margin work.
The economics
A CAS engagement priced at $400–$800/month per client needs its delivery to cost meaningfully less than that to be profitable. A local bookkeeper at $55–63/hour fully loaded eats most of the fee. An offshore bookkeeper at $8.50/hour leaves real margin — and lets you price CAS competitively without racing to the bottom.
Scaling CAS with a dedicated bench
As your CAS book grows, a dedicated offshore bench scales with it — one bookkeeper, then a senior bookkeeper to review, then AP/AR and payroll specialists. Each hire is justified by signed clients, not by speculation. This is how CAS practices grow past the partner-as-bottleneck stage.
Getting started
If you're building or scaling CAS, the first offshore hire is usually a staff bookkeeper to absorb delivery. See our for-accounting-firms page, or book a consultation to scope the role.