Client Accounting Services (CAS)

Definition

Client Accounting Services (CAS) is an accounting firm service model where the firm handles ongoing accounting functions for business clients on a recurring basis, such as bookkeeping, financial reporting, and payroll processing. Unlike traditional compliance work, CAS engagements are typically structured as monthly retainers covering a defined set of deliverables. CAS has grown significantly as cloud accounting technology allows firms to efficiently manage clients' day-to-day accounting remotely.