Tax advisory firms took a projected $3 billion hit on their revenues around the world last year because of the coronavirus pandemic, according to a new report.
The report, from Source Global Research, estimates that revenues contracted over 9 percent in 2020 due to the pandemic. Some parts of the world fared better than others. In the U.S., the $16.3 billion market for tax advisory services grew 7 percent in 2019, but in 2020 the report estimated a decline of 13 percent. The U.K. market contracted even more, by 21 percent. On the other hand, Australia saw 4 percent growth.
Amy Carlisle is president of MSI, an independent managing general agency (MGA) in the United States.
Deborah "Deb" Dioguardi is Executive Vice President and Professional Lines National Practice Leader at Jencap, where she drives the growth and strategic direction of the firm's management liability, professional liability, and cyber liability practice. A highly respected wholesale broker, industry leader, and recognized thought leader, Deb has dedicated her entire 25+ year career to Jencap, building a reputation as one of the foremost experts in professional lines insurance. Her contributions to the industry have earned national recognition, including the 2023 ACORD Women's Insurance Advancement Award and a place on Insurance Business America's 2025 Hot 100 list. Deb holds a bachelor's degree from the New York Institute of Technology and currently serves on the Board of Directors for the Insurance Brokers Association of New York (IBANY).
Kelly Grace, director, advisory – ECS – motor fuels and excise tax at Weaver, has more than 14 years of experience in professional accounting with a focus on complex fuel excise and sales and use tax matters, with experience building, testing, and implementing tax logic for Avalara, IGen, Sabrix, SAP and Right Angle. She is well-versed in planning and directing federal and state motor fuel and sales tax audits. She manages co-sourcing tax compliance projects for companies in all 50 states and researches and advises clients (refineries, fuel terminals, pipeline operators, retail stations, end users) on new and updated state and federal tax laws affecting clients' businesses. She is a CPA in Pennsylvania, a member of the Pennsylvania Institute of CPAs, the Pennsylvania Bar and the Federation of Tax Administrations, Motor Fuel Sections. She earned her bachelor of science in accounting and economics from the University of Delaware and her Juris Doctorate from the Temple University Beasley School of Law.
Despite the slump, demand for tax advisory services has held up better than many other areas of the overall professional services market. The global management consulting market shrank 13 percent to $21 billion. The report predicts the global tax advisory market will recover soon, with a growth rate of 7 percent anticipated.

The COVID-19 pandemic has reshaped the tax advisory market, stalling M&A activity and international tax work. M&A-driven tax work declined 21 percent last year, reducing total revenues from $1.6 billion to $1.3 billion. In contrast, compliance-related tax management fared comparatively well last year, even though clients initially tried to do more of their work in-house, with only a 5 percent contraction in revenues tied to efforts to shore up cash reserves by taking advantage of tax deferrals and other government support schemes.
“The pandemic has radically reshaped priorities, with many different concerns all vying for space at the top of the corporate agenda,” said Source Global Research managing director Fiona Czerniawska in a statement Monday. “Finance and tax functions are having to balance the demands of tax compliance with the ability to respond to new and unprecedented risks. That balancing act saw attempts to reduce reliance on external support early in the crisis, only for demand to recover as clients recognized that they lacked the capacity and/or capability to carry out compliance work by themselves.”
Some tax firms report greater demand for their services. “We’re seeing lots of requests for compliance services, which is driven by the fact that many clients just weren’t prepared for this,” said Ryan LLC chairman and CEO Brint Ryan in a statement.
When it comes to clients in different sectors of the economy, tax advisory work in the energy sector declined 23 percent, in the manufacturing industry by 10 percent, in the services sector by 18 percent, and in the technology, media and telecommunications sector by 18 percent. However, much of the decline in that sector seems to be due to media clients, and the high-tech and telecom industries experienced significant growth of 22 percent and 16 percent respectively. Tax advisory work in the insurance industry grew 4 percent. The pharmaceutical and health care sectors saw growth in tax advisory work of 19 percent and 4 percent, respectively. Regulation is becoming an increasingly significant issue in all of those industries and sectors, and is making itself felt through increasing demand for compliance-related support.
For those tax advisory firms that do win work, fee rates are coming under increasing pressure, which will present even more of a challenge throughout this year. Only 3 percent of the clients surveyed in March 2020, before the pandemic had truly taken hold, anticipated that fee rates would fall across the industry; however, by September, that had risen to over 60 percent. While the pandemic itself is undoubtedly the main driver of this pressure on fees, it’s also a consequence both of the growing demand for compliance work which, while complex, isn’t an expensive, highly specialized service, and clients’ belief that a wider range of tax services have been similarly commodified.
The market is expected to recover this year, with growth likely to be focused in specific areas. The continuing pressure on organizations’ own in-house tax functions will probably contribute to growth in compliance-related work. The Source report found that once the crisis is over, the area of tax where clients are most likely to increase their use of outside support is compliance (70 percent of those surveyed predicted they would increase the use of third parties for doing this work). There’s also likely to be a resurgence in M&A-related tax work, as many of those surveyed anticipate the prolonged crisis will lead to an increase in restructuring and transactions.
“We anticipate a higher uptick [in tax work associated with M&A] because the pandemic has caused executives around the world to reflect on what it is they’re trying to achieve within their business,” said Lisa Stott, global lead for tax advisory services at Deloitte, in a statement. “They’re reflecting on whether they have the right strategies, and how to introduce resilience into their business so they can cope more effectively if anything like this happens again. Therefore, a lot of clients are already making decisions about divestments, expansions and acquisitions to make their supply chains more resilient.”


