The Green Rush: What CPAs Should Know Before Considering Cannabis Clients
As the cannabis industry grows, more—and more complex—opportunities for CPAs arise. Before rushing into serving this unique client base, here are some challenges and risks CPAs and their firms should consider.
By Natalie Rooney | Spring 2023

In recent years, the U.S. cannabis industry has
been on fire, showing no signs of burning out as more states
push to legalize marijuana for recreational use. Currently, 21
states and Washington, D.C., have legalized recreational use for
adults ages 21 years and older, and 37 states have legal medical
marijuana programs.
In Illinois, recreational possession and sales of cannabis products
became legal as of Jan. 1, 2020. The state currently has about 113
dispensaries, and their legal cannabis sales totaled $1.5 billion in
2022, up from nearly $1.2 billion in 2021.
With the industry becoming more widely accepted throughout the
United States, opportunities for CPAs in this niche are growing.
Even if CPAs aren’t actively looking for cannabis clients, those
businesses are actively looking for CPAs.
In the run-up to legalization in Illinois, Illinois CPA Society (ICPAS)
member Nathan Summers, CPA, an audit principal at Miller, Cooper
& Company Ltd., describes interest in the market as a “green rush.”
As a firm that specializes in audit and tax, Summers says a handful
of clients approached them asking for help. “We started consulting
with them, walking them through the processes and challenges,
and it just took off.” The result? A new, fast-growing cannabis
practice within the firm.
Though despite the growing interest and size of the marketplace,
the cannabis industry is highly regulated and extremely complex.
Before CPAs and firms jump into serving this unique client base,
there are several challenges and risks to consider.
IS THE CANNABIS NICHE RIGHT FOR YOU?
As ICPAS member Kenneth “Kenny” Mason, CPA, MBA, founder and
CEO of Equibis, watched the cannabis industry start to take off in
Illinois, he recalls having to “really think” about whether stepping
into it was right for him. “This is an industry with a target on its back,”
he cautions. “Developing a firm to support cannabis clients has
required a lot of time, effort, and headaches, but it’s been worth it.
These businesses need our support just like any other business.”
Ultimately, Mason committed to becoming an expert in the cannabis
space and now helps cannabis retailers all over the U.S. exist legally
and manage their finances, particularly their taxes. As cannabis
remains a federally illegal substance, he observed cannabis
businesses struggling with the tax code. “They pay federal taxes
but can’t take advantage of tax credits and deductions like most
businesses can, which creates opportunities for CPAs to step in and
provide valuable, much-needed guidance.”
ICPAS member Molly Mayfield, CPA, member manager and founder
of GreenFlex Financial PLLC, says initially, she was nervous about
reactions to her decision to work in the cannabis space, and she
understands why others may be reticent to work in it.
“At first, I wouldn’t even comment on or like cannabis-related posts
on LinkedIn,” Mayfield recalls. But, she also knows that working within
the ethical boundaries of the accounting profession, there’s no
reason she can’t offer her services to cannabis clients, particularly
when Illinois requires cannabis operations to consult CPAs for
specific services. “As long as I serve everyone’s businesses well,
cannabis and non-cannabis clients, I’m doing my job.”
As a former public accounting firm auditor, ICPAS member Fay
Rofalikos, CPA, senior director at Green Thumb Industries, a
national cannabis consumer packaged goods company and
retailer, says her job change brought a lot of surprises. “When
you’re an auditor, you think of everything in terms of debits and
credits,” she says. “When you’re an operator, especially in cannabis,
it’s not that simple.”
Summers says it’s also important to consider the impact adding a
cannabis practice might have on a firm’s existing client base—what
they might think and how they might react to the firm’s decision.
Ultimately, from a reputation standpoint, Mason says firms should
ask themselves: Do we want to stick our necks out and work with
cannabis companies?
NAVIGATING THE CHALLENGES
Ironically, for an industry that’s highly regulated, there’s not always
a lot of direction. “We’re constantly asking what rules we should be
following,” Mason says. In the early days, he used his best
judgment, watching how court cases were handled and monitoring
how the IRS made decisions.
Even prior to the pandemic, Mason was working virtually with clients
all over the U.S., some of whom didn’t have bank accounts. These
days, banking has become slightly more lenient as state governors
have worked to help financial institutions support cannabis
operations. “But implementing internal controls and getting
accurate numbers for these cash-heavy businesses is still a
challenge,” he admits.
Before getting involved in the cannabis niche, the biggest lift for
Summers’ firm was getting everyone educated. “There’s not a lot
of history, so you can’t always find other examples to study,” he
says. “It took a lot of digging to understand how cannabis compares
to more mature industries.”
Summers admits that the firm’s education efforts are continuous. “You
don’t learn everything in a month. We constantly work on staying up
to date about what’s new, especially from a regulatory perspective.”
Mayfield says working in this illegal/legal dichotomy means there’s
a complexity to the accounting and back-office processes involved.
“Many times, we’ve taken the long way around to get to the
answer,” she explains. “Because we operate with the stigma of illegality, we don’t have the privilege of operating with optimal
systems and technology.” She says companies in every sector, from
technology to transportation, may not do business with cannabis
companies. As a result, cannabis companies don’t have as wide a
range of vendors to choose from. “It takes us longer to get to those
necessary efficiencies.”
Rofalikos agrees. “We’re not out there dealing with Chase or Bank
of America, for example. Our options are more limited because of
who can work with us for banking and payroll,” she says. “That
doesn’t mean the accounting is bad or we don’t have accurate
statements, but we’re not always working with the top-tier
technology. As a CPA, you need to be extra aware and understand
the challenges. What’s simple for your other clients isn’t as simple
for your cannabis clients.”
TAKING THE LEAP
CPAs setting up shop in the cannabis space can learn a few things
from the professionals who’ve gone through the process already.
They offer these seven tips:
1. Get coverage: Consult with attorneys and insurance providers
and add language to engagement letters as a protective
measure. Mayfield says before she went through the process of
confirming her insurance coverage, she found there was a
special type that was better for her to have as an entrepreneur
versus a more general policy.
2. Create connections: Actively connect with other CPAs and
mentors within in the tight-knit industry. “Because we’re so limited
on banks, merchants, and other service providers, it really helps
to network with other professionals in the industry for their intel,”
Rofalikos says. “Without that network, you don’t know who can
help you and your clients succeed.”
3. Understand industry compliance: When a financial institution
accepts your cannabis client, be prepared for rigorous
compliance, and stay vigilant. “CPAs in this field must have
spectacular, timely reporting or else a client’s bank can shut them
down,” Mayfield warns. “Knowing how to navigate IRS rules at
both the state and federal level is critical for those of us working
in this space. We need to guide our clients to make the most out
of these regulations.”
4. Know your clients: “When practitioners don’t understand the
nuances of what this industry deals with, it leads to frustration
and stumbling blocks,” Rofalikos says. “You’re asking the same
questions, but you need to take a step back. While generally
accepted accounting principles are the same as other
manufacturers and retailers, we operate differently on the
processing side.”
5. Be flexible: The state-based nature of the cannabis industry
remains one of the biggest challenges. “There’s a different
regulatory framework in every state,” Rofalikos says. “You’ll need
separate legal entities and banking. If you’re in 14 states but use
the same vendor for each business, you’ll still have to cut 14 checks
to that vendor—one from each state. It takes more people, time,
and resources. While a typical manufacturing company with
centralized accounts can take advantage of efficiencies, our
accounts must remain decentralized. Streamlining will continue to
be a challenge until cannabis is federally legal.”
6. Be persistent: When times are tough, Mason reminds himself of
his “why,” which isn’t only building a community and being on the
forefront of a burgeoning opportunity, but also helping struggling
businesses. “We’re all trying to figure out this unknown. It’s about
persistence. Keep your eyes on the prize and find other people
who are going through similar situations.”
7. Go all in: Don’t dabble in this industry, Summers advises:
“Specialization, expertise, and experience all come over time. If
you’re going to be in it, do it right.” Summers’ firm began by
sending team members to conferences and doing a lot of
research. “We wanted everyone to be properly educated before
we started offering advice,” he explains.
While the cannabis industry is moving quickly and making progress,
cannabis still remains illegal at the federal level. Therefore,
businesses and the CPAs that serve them will continue to face
unique challenges and scrutiny.
Mason describes his cannabis clients as being between a rock and
a hard place, and he’s determined to help. “There’s an urgent need
for our expertise,” he says. “This industry is only going to continue
to grow. It’s exciting as we figure out a way to help these
businesses come out on top.”
Rather than shy away from the industry, Rofalikos encourages
CPAs to embrace it. “Consider this ‘Prohibition 2.0.’ Look at where
we are now, and don’t be afraid to get involved. You can be a part of
shaping something new—you can’t ask for a better opportunity.”
Above all, Mayfield says it’s worth it to enter the cannabis space and
make a difference in the quality of life for others, not just the cannabis
business owners, but the customers they serve. “If we do our job
right, and do it consistently, we give our clients—and theirs—peace
of mind by making sure they’re working with a CPA who’s
experienced, educated, and connected within the cannabis industry.
They know they can rely on CPAs to be their strategic business
advisors and help them reach their next level of success.
Natalie Rooney is a freelance writer based in Eagle, Colo. A former
vice president of communications for the Ohio Society of CPAs, she
has been writing for state CPA societies for more than 20 years.
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