You already have the clients. Build the model around them.
CAS is more than bookkeeping. It's the operational backbone of your clients' businesses and the most natural gateway to high-value advisory work. For tax practices, it bridges the gap between seasonal chaos and predictable, year-round growth.
Your hardest asset to replace is already sitting in your client list.
You have trust, history and financial visibility that no new entrant can buy. What most tax practices don't have is the operating model to turn that into recurring revenue.
Write-up work is not CAS. Adding a bookkeeping line to a tax practice is not CAS either. The difference is in how the work is scoped, priced, staffed, delivered and reviewed, and that difference is exactly what determines whether it makes money.
Six things every tax practice underestimates.
Who it's for
An ideal client profile, and the discipline to say no. The fastest way to lose money in CAS is to accept every tax client who asks.
What you sell
Defined service packages with real scope boundaries, not an open-ended promise to "handle the books."
What you charge
Pricing built from complexity and effort, not from what the tax return cost. Fixed-fee models that survive contact with reality.
Who does the work
Staffing models by level, job descriptions, and an honest answer on onshore, offshore or both.
How it gets done
Onboarding checklists, month-end close procedures, standardized workpapers and a review process that scales.
How you convert
Selling points for the tax team and for tax clients. The conversation that moves a compliance relationship into an advisory one.
The order that works for tax practices.
Turn one season into twelve months.
Membership starts at $49 per month for a single user, or $99 for 1 to 5 users.