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Inside the $6.1B Celtics deal: The playbook for high-value sports ownership

The behind‑the‑scenes strategy that powered one of sports’ biggest acquisitions

CLIENT
William “Bill” Chisholm

INDUSTRY
Professional sports/Private equity

PRIMARY GOAL
Secure majority ownership of the Boston Celtics in a high-value transaction

KEY SOLUTION / TECHNOLOGY
Bespoke financial and tax due diligence, luxury tax modeling, and investor structuring

Provided clear understanding

of net cash outlay requirements for six months post acquisition

Simplified

tax complexity with detailed tax modeling services

Untangled

complex future luxury taxes implications

Liquidity strategy

in the face of volatile financial cycles

Make confident decisions on and off the court

When William “Bill” Chisholm set out to acquire the Boston Celtics, he wasn’t just buying a team—he was stepping into the glare of the sports world’s brightest spotlight. The deal was enormous: a $6.1 billion price tag, a consortium of investors, and the pressure of following a championship season. The deal had to be airtight and completed fast.

Behind the scenes, the pressure was palpable. Bill’s advisors, the KPMG Deal Advisory team, and legal counsel worked in lockstep—often late into the night, sometimes from opposite coasts. For Mark Hughes, KPMG lead partner, the challenge was as much about people as numbers: “We had to make sure Bill and his team were comfortable with what they were paying, and that there were no hidden risks lurking in the details.”

Seasonality, volatile cash flow, and unique NBA rules create financial complexity

Owning an NBA franchise isn’t like running any other business. Cash flows during a year can fluctuate significantly, driven by ticket sales, luxury tax and revenue share payments, and player compensation, all of which include complex up-front payment schedules. These dynamics create significant working capital swings, especially in the offseason when payroll obligations persist but revenue slows to a trickle. Understanding this was critical to help make sure Bill had sufficient liquidity to fund operations post close. In addition, he was stepping into the aftermath of a championship season, with the sports world watching. 

“The Celtics winning the championship the year before created a unique dynamic," recalls Hunter Rice, a managing director in the KPMG Deal Advisory practice. "We had to assess what impact that had on the prior-year financials, and what it might look like if they won again—or didn’t."

The KPMG team built models to forecast cash flow, helping ensure Bill’s group had the liquidity needed for the initial six months post close and beyond. Leveraging their deep experience in the sports industry, KPMG provided rapid, targeted analysis of the complex financial arrangements unique to NBA franchises, which are often impacted by cash flow volatility and league-imposed financing limits. KPMG was able to get up to speed quickly. They interpreted recent threshold changes to team credit facilities, clarifying what could be drawn down to support the Celtics’ ongoing operations.

“There’s a lot of seasonality in owning an NBA franchise,” said Alex Beale, KPMG Financial Diligence director. “We had to model for every scenario, so there were no surprises for Bill post close.”

In a deal of this magnitude, our role was to give Bill the confidence to make a decisive move with no surprises. We untangled the financial and tax complexities unique to the NBA, providing clarity on everything from near-term cash requirements to long-term luxury tax implications, so Bill could step into this legendary franchise ready to build on its legacy from day one.

Mark Hughes

Lead Partner, KPMG US

Balancing investor interests, NBA rules, and US tax law

With a consortium of investors, the tax structuring was a labyrinth. KPMG Tax specialists worked hand-in-hand with Bill’s legal team to design a waterfall that balanced the interests of every class of investor—while staying compliant with NBA rules and US tax law. “A lot of the value we delivered happened between signing and closing,” said Tyler Orlowski, KPMG Tax principal. “We helped the client understand how tax allocations would work in the go-forward partnership.”

A history-making deal that no one saw coming

When the deal was ultimately made public, it generated widespread attention—yet until that moment, not a single detail had surfaced. In the end, the Celtics’ transaction was more than just a tale of numbers and tactics—it was a testament to what’s possible when expertise meets passion. With every challenge deftly navigated, Bill and his partners emerged with more than a winning investment—they have a vision for elevating the legacy of the Boston Celtics and inspiring the next generation both on and off the court.

For the love of the game and the business of sports

At KPMG, we empower athletes to take their games to the next level with analytics-driven insights. We deepen fan engagement across the experience, from sofa to seat. We help broadcasters deliver new levels of insight with every play. And we help new owners take the reins of legendary franchises.

Our Global Sports practice spans 19 countries, but our approach is always local, tailored to the heartbeat of each team, each league, each community. You’ll find us courtside, greenside, in the locker room, and, above all, in the stands. Because we’re fans. And that means we bring our hearts as well as our heads to every transaction. And when it comes to the business of sports, that makes all the difference.

If you’re asking questions like these, talk with the team that helped Bill find answers:

  • How can I structure a high-profile acquisition to maximize value?
  • What are the hidden financial and tax risks in acquiring a major sports franchise?
  • How can I model cash flow and luxury tax exposure in a volatile, industry?
  • What does it take to build a winning team—on and off the court?

Make the Difference

At KPMG, what sets us apart is not just what we do, but how we do it.

We combine deep experience with the right technology to turn insights into action. By placing human connection at the center of innovation, we help you navigate complexity, move your business forward, and turn ambitious goals into measurable results.

In a constantly changing market, progress depends on making the right moves at the right time. That’s why we help you advance your transformation by solving tough challenges, uncovering new opportunities, and applying new technologies responsibly to drive growth, elevate impact, and create lasting value.

Make the future happen.

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