Across all IPA firms, the average staff-to-equity-partner ratio is 11.8 to 1. But that headline number masks significant variation by firm size.
Among firms with more than $150 million in revenue, leverage climbs to an average of 16 staff per equity partner. In the $20 million to $30 million range, the average is 13.6. For firms under $5 million, the ratio drops to 7.7 staff per equity partner.
These differences are structural. Larger firms are built to scale through a broader production base beneath each partner. Smaller firms tend to operate with flatter organizations, often with partners more directly involved in client production.
For decades, profitability in public accounting has been driven by two core levers: leverage and billing rates. Production capacity (how many billable hours sit under each partner) multiplied by pricing discipline determines margin. If either weakens, profitability tightens. If both stall simultaneously, compression follows.
Today, several forces are testing the traditional pyramid model.
Talent pipeline pressure is affecting entry-level hiring and retention. When firms struggle to maintain junior staffing levels, leverage declines unless partner admissions slow proportionally. Even modest reductions in staff per partner can materially affect revenue capacity.
At the same time, more than 70% of the IPA 100 report using some form of offshore staffing. Offshore teams expand production capacity, but they alter the shape of the pyramid. Some firms are building hybrid models with offshore production forming part of the base, while others are operating with advisory-heavy teams that rely more on senior talent and fewer junior roles.
If a partner oversees five staff members generating $300,000 each in annual revenue, that represents $1.5 million in production capacity. If staffing declines to four without corresponding pricing adjustments, production capacity falls to $1.2 million. Unless billing rates increase meaningfully, that $300,000 difference directly impacts margin.
What the data shows is not that leverage is disappearing, but that leverage strategies are diverging. Firms above $150 million operate at more than double the staff-to-partner ratio of firms under $5 million. Mid-sized firms sit between those extremes, often balancing growth ambitions with talent constraints.
The strategic question is not whether a higher ratio is universally better. Higher leverage often supports stronger profit potential, but flatter firms may gain agility and deeper partner involvement. The critical factor is intentional design.
Firms that do not actively manage both leverage and pricing risk silent margin compression. Leverage may drift downward due to hiring challenges, while pricing remains static due to competitive pressure. Over time, that combination erodes partner income even in strong demand environments.
Leverage is not obsolete. It is evolving. The firms that will perform strongest in the next decade are likely to be those that treat leverage not as a passive staffing outcome, but as a deliberate profitability strategy.
