Artificial intelligence is creating a sharp wage divide in the legal profession: workers who use AI command a 67% pay premium in professional services, while major law firms face client pressure to cut fees as AI reduces billable hours. The tension is now playing out between Wall Street banks and Big Law, with banks demanding new payment models built around AI-driven efficiency.
Workers with AI skills globally earn a 62% wage premium over comparable roles that do not require those skills, according to PwC's 2026 AI Jobs Barometer. In professional services, that premium rises to 67%. The same technology driving those wage gains is eroding the billable-hour model that has underpinned law firm profits for decades.
Banks push back on billing rates
Morgan Stanley and Citigroup have told large law firms they intend to introduce new payment arrangements, while Goldman Sachs has asked firms to disclose how much time AI is saving them, with an expectation of sharing in those savings, the Financial Times reported, citing people with knowledge of the matter.
The pressure targets the leverage model, under which firms maximize partner profits by billing hourly for work performed by junior lawyers on tasks such as research, document review, contract assessment, and litigation discovery. Average hourly billing rates for associates at the largest US law firms reached $798 this year, up 33% since 2023, according to legal technology company Persuit. Partner rates rose 29% over the same period.
"If the number of hours they're working on a matter has come down because of AI ... our expectation is for costs to come down significantly per transaction," Adam Meshel, global head of legal at Citigroup, told the FT. He said Citigroup has begun asking law firms to bid for work and explain how much they are saving through AI, adding that a new working model based on that approach would likely be in place within a year.
Junior lawyers and the automation of billable work
A February 2026 LexisNexis survey found that more than half of lawyers using AI tools are already producing work faster. Junior lawyers are increasingly turning to AI for legal research, first drafts, and document review - activities that have traditionally formed the basis of associate-level billing. Those same tasks overlap heavily with paralegal work, which is why structured training such as an AI Learning Path for Paralegals has become relevant for legal support roles facing similar shifts.
Morgan Stanley's general counsel, Eric Grossman, said top lawyers had "for a long time been compensated on the foundation of [associates billing for long hours]." He added that "their compensation model is now extraordinarily unstable." Grossman told the Financial Times that the bank would, by the end of this year, tender most external legal work through competitive bidding and alternative fee arrangements such as fixed fees.
A hybrid pricing model emerges
Gretta Rusanow, head of advisory services for Citi's law firms group, said a wholesale repricing has not yet arrived. "We're not yet seeing a formalised, firm-wide shift towards alternative fee arrangements, but it is likely to come," she told the FT. She predicted a hybrid approach, with "fixed fees for routine work and the billable hour for more complex work."
For legal professionals, the wage premium attached to AI skills suggests that adapting to these tools is not optional. Those who can use AI effectively are positioned to earn more, while those whose output AI replaces face downward pressure on fees and hours. AI for Legal training resources address this exact split, helping practitioners build the skills that command the premium rather than compete with the automation.
Why this matters for HR
HR teams in professional services and corporate legal departments should watch two numbers: the 67% wage premium for AI-skilled workers in professional services, and the 33% rise in associate billing rates since 2023 that clients are now rejecting. Compensation structures built on billable hours are under direct pressure from clients who expect AI savings to flow back to them. HR leaders should prepare for a shift toward fixed-fee and hybrid pricing models, and should prioritize AI upskilling for junior legal staff - the roles most exposed to automation of research, drafting, and document review work.
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