What You Need in a CAS Tech Stack
Combining the right software and applications can help your CAS practice produce higher earnings and bring added value to your clients.
By Ayala Clinkman, CPA, PMP | Fall 2024

Over the last couple of years, it seems that every time I see the acronym CAS, which stands for client advisory services or client accounting services, I also see “tech” and “stack” mentioned nearby. But why is that?
CAS is the practice of providing services to take care of and address clients’ accounting and financial needs. These services can vary from basic bookkeeping all the way to serving as a client’s interim or outsourced chief financial officer or controller.
Tech (i.e., technology) refers to electronic tools used to accomplish tasks. Stack is a vertical pile of things. By combining tech and stack together, you’re referring to a firm’s set of applications, electronic tools, and software used on a regular basis to run the practice successfully. Ideally, all the technologies used are stacked together and integrated in some way to give staff everything they need to perform their jobs as efficiently and effectively as possible.
Therefore, the reason tech stack is talked about so frequently in the CAS space is because when combined (meaning, the right selection of software and applications), you can streamline tasks, produce higher earnings, and provide your clients a better experience—and therein lies a tech stack’s value. But it’s not just any software or application that’s randomly implemented that’ll allow this—a CAS tech stack needs to be deliberately built based on the practice’s (and clients’) needs and environment.
Whether you’re just starting a CAS practice, experiencing pains or bottlenecks due to manual processes or a small staff, trying to expand with efficiency, or specializing in a niche industry, it’s a good idea to evaluate if you’re using the best tech tools and software for the job and whether there are any areas where you could use technology more effectively.
Here, three leaders of CAS practices share what they consider to be important tech stack selection criteria and the available tools they recommend.
SELECTING THE RIGHT TECH STACK FOR YOUR CAS PRACTICE
Irfan Dossani, CPA, partner in charge of client accounting and advisory services at Whitley Penn, recommends looking at your client base and analyzing what verticals you are (or could be) focusing on, as your tech stack will need to serve those verticals. He notes that some software is specifically designed to serve certain industries and their unique requirements. For example, the manufacturing industry has very different requirements than the nonprofit world. Stepping beyond your practice’s specialization, you must consider whether your software solutions meet the specialized situations of your clients—think location, number of employees, yearly revenue, multicurrency, etc.—since these too can impact which software tools are best for the job.
Dossani also recommends looking at your team. Are some of them
really into a certain field or good at a certain area or task? Can you
build around that? Can you capitalize on your team’s strengths and
specialties to create a unique service offering or focus area? Of
course, a third angle is listening to your clients. Are multiple clients
asking for the same advice or service or struggling with similar
tasks? Based on the answers to these questions, you can find ways
to differentiate and create more opportunities for providing your
clients with specialized services that’ll in turn need to be supported
by specialized tech tools, which will help dictate what your tech
stack should be comprised of.
Kane Polakoff, principal and CAS practice leader at CohnReznick
LLP, says standardization across the firm is key. If there’s no
standard solution to build from, it’s difficult to scale up. Polakoff says
you want your people to become familiar with a tool and process.
This essentially means selecting a standard tool per process or
service and ensuring your team is well trained on both. Polakoff
also suggests considering whether you’ll require your clients to
adopt certain systems or processes as part of their acceptance
criteria. This question should be answered as part of your practice’s
revenue model and long-term strategy.
Laura Steuber, CPA, principal and director of CAS at Miller Cooper &
Co. Ltd., emphasizes the importance of standardization and the
efficiencies it brings. Additionally, she notes that it’s important to
establish relationships with your go-to software providers, especially
if you’re assigned to a dedicated representative who can assist with
supporting and training your team. Once you purchase or license a
software solution, you might be assigned a team or consultant that’ll
help you implement it and be available for assistance if any issues
arise. Which vendor(s) will provide additional services, like training
and support, should be an evaluation point when you’re in the
selection process.
RECOMMENDED TECH STACK TOOLS
So, what are some examples of software that can comprise a CAS
practice’s tech stack?
First, Polakoff recommends choosing cloud-based software
solutions, as this allows for greater flexibility and mobility (which
could also help in attracting and retaining talent).
For small or new practices, Dossani recommends sticking to the
basics and looking into one of Intuit’s simple platforms to start, like
the ever-popular QuickBooks and TurboTax offerings. As your CAS
practice grows, he recommends exploring the utilities of more
robust solutions like Sage Intacct.
Generally speaking, Steuber says one of the most important tools
for a CAS practice is a general ledger package. After that, she
recommends implementing software that helps automate or
upgrade processes for managing and monitoring bill payments,
bank feeds, tax forms, expense reporting, payroll, and sales tax.
Steuber likes Bill for a payments solution, Expensify for expense
management, and Avalara for sales tax calculations and reporting.
Once you establish your go-to tech for these processes, Steuber
recommends considering a consolidations tool and a forecasting
and budgeting system for greater business visibility.
Of course, there are countless more solutions out there. Overall,
your CAS practice’s focus area(s) should drive what your tech stack
is comprised of. Take some time to evaluate your options to
determine which ones work well together and make the most
sense for your practice, staff, and clients.
Ayala Clinkman, CPA, PMP, is a senior director of business solutions
at Business Technology Partners LLP.Related Content:
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