Client Accounting Services (CAS)—often expanded to Client Advisory Services—combines recurring outsourced accounting with increasingly higher-value analysis, planning and decision support. For firms, the opportunity is attractive because the model can create recurring revenue, deeper client relationships and a pathway from transactional work to advisory.
What services are included in CAS?
- Bookkeeping and transaction processing
- Accounts payable and accounts receivable
- Payroll coordination
- Month-end close
- Management reporting
- Controller services
- Cash-flow forecasting
- Budgeting and KPI reporting
- Business insights and advisory
- Virtual CFO services
Why CAS matters
The latest completed CPA.com and AICPA PCPS benchmark reported a 17% median CAS growth rate and median net client fees per professional of $156,250. It also found that firms with more higher-level business-insight services generated higher monthly recurring revenue, reinforcing the strategic shift from pure transaction processing toward advisory.
The CAS operating model
- Choose an ideal client profile or niche.
- Define standardized service packages.
- Create a repeatable technology stack and chart/reporting model.
- Build client onboarding around access, data quality and expectations.
- Standardize monthly close and review workflows.
- Create an advisory cadence with a defined KPI package.
- Price for recurring value and delivery economics.
- Track margin, retention, NCFPP, close cycle time and capacity.
Use How to Start a CAS Practice for the launch sequence, the Bookkeeping Client Onboarding Checklist for intake, and the Monthly Bookkeeping Checklist for recurring delivery. The Accounting Services Pricing Guide covers pricing models.
Technology for CAS
A CAS stack should make data easier to standardize, not simply add apps. At minimum, evaluate accounting/ERP, payments/AP, payroll, reporting, document exchange, workflow, CRM and billing. For the firm itself, PracticeERP can connect client management, workflow, time, WIP, billing and analytics so leaders can measure the economics of the CAS practice alongside other service lines.
CAS KPIs to track
- Recurring revenue and growth
- Average annual/monthly client revenue
- Gross margin or contribution margin
- Net client fees per professional
- Client retention/churn
- Close cycle time
- Revenue per service package
- Capacity by role
- Advisory attach rate
- Expansion revenue
Ready to take the next step? CAS grows best when delivery is standardized and profitability is visible. Explore PracticeERP for the operating layer behind a scalable advisory practice.
