Law Firm Fee Structures Moving from Hourly Billing to Fixed Fees

Hello, I'm Noriaki Asato, Representative Attorney at LegalAgent.

LegalAgent provides legal services that make use of generative AI, and we have designed our fee structure to match the way we work. Legal Agent, a Law Firm for the Generative AI Era At our firm, we have reconsidered hourly billing, which charges according to time spent, as far as possible, and have adopted a transparent fee structure built around fixed fees agreed in advance. If AI changes the time it takes to do preparatory work, I want to rethink what attorneys are being paid for as well.

The Significance of Hourly Billing and AI's Shortening of Preparatory Work

Attorney fees in corporate legal practice have long been operated mainly on an hourly basis. It is a system in which the billed amount is calculated by adding up the time spent on research into case law and statutes, review of contracts, attendance at meetings and conferences, and so on. This method has a rationale: it makes visible the effort the attorney has expended, and in fields where circumstances tend to change as a matter progresses, such as litigation, M&A and complex financings, it is difficult to fix the amount of work or the scope of deliverables in advance, so it remains a realistic option even today. I myself do not think hourly billing will disappear completely even as AI becomes widespread. However, I expect its share to decline significantly going forward.

In particular, in areas where the scope of work and deliverables can be anticipated to some extent, such as routine contract review and everyday legal consultations, I see considerable room for a shift toward fixed fees, monthly fees and per-deliverable billing. With the introduction of generative AI, the time needed for first-pass contract review and issue spotting can be shortened, and in some situations, organizing due diligence materials and searching for past similar matters and templates can also proceed more quickly. Once the preparatory work on which junior associates and paralegals used to spend much of their time can be replaced by AI, it is natural for clients to ask a simple question: "Why should we pay by the hour, as before, for work that AI can process in a short time?" The value a law firm provides should lie not in the length of time worked itself but in supporting the client's decision-making and helping the business grow.

Decision Support and the Structural Problems of Hourly Billing

What clients truly need in corporate legal practice is not limited to explanations of difficult legal theory. Legal accuracy is of course the major premise, but what management and business divisions want to know are concrete judgments directly connected to business decisions, such as "Is it acceptable to sign the contract with this clause left in?", "What points can we not concede in the negotiation?" and "How will the terms of this financing affect the next round?" By using AI, attorneys can quickly grasp past matter information, differences between contract versions, and the history of chats and emails, and reach the materials needed for a decision faster. With AI handling the preparatory research and organization, attorneys can devote more time to considering negotiation strategies based on the client's business goals and risk tolerance.

On the other hand, hourly billing has a structural problem of misaligned economic interests. This does not mean conduct contrary to attorneys' professional ethics or wrongdoing. Many attorneys sincerely do their best and try to handle matters without wasting time. However, from the standpoint of economic incentives, while the client wants "to receive deliverables of sufficient quality as quickly as possible at a clear cost," under the hourly billing system, the firm's revenue increases the longer the work and meetings take. A structure in which the firm's income falls the more it improves efficiency and shortens working time does not necessarily align with the speed and cost-effectiveness the client seeks.

Fixed-Fee Models at AI Native Law Firms Overseas

Such a review of fee structures is not limited to theoretical debate; it has begun to take concrete form overseas. For example, Crosby, a law firm that takes on contract review and negotiation for a fixed fee per contract, has received investment from prominent VCs such as Sequoia Capital. The firm has a system in which attorneys verify every deliverable, and it sets a price for each contract-level deliverable. The Agentic Law Firm Built for Execution

In addition, General Legal, a law firm for growth companies selected for YC Winter 2026, highlighted in its launch announcement a system for returning contract reviews within a few hours. The firm's current website also prominently features direct communication with attorneys via Slack and fixed fees set for each type of contract. General Legal - The AI-Native Law Firm for fast growing companies

These law firms use AI to reduce the time spent on research and drafting, and by having attorneys handle the final legal judgment and verification of deliverables, they define the services they provide for fixed fees. Among these AI Native Law Firms, there is a movement to revisit fees based on which services are provided, at what level of quality and with what turnaround.

The Organizational Design Needed to Operate Fixed Fees and Our Firm's Fee Structure

For a law firm to operate a fixed-fee system stably, it is necessary not merely to change the way fees are presented but to fundamentally revisit the design of its work and organization. The firm must organize the records of past deliberations, contracts and the reasons for decisions, and put in place a system that allows review criteria and checklists for each client to be shared. It is also important to appropriately limit the number of people involved in a matter, change a structure that simply piles up work, and shift attorney evaluation and internal compensation systems from an hourly-wage mindset to a design based on results. Clarifying the scope of services provided, the quality level and where responsibility lies, and defining in advance the boundary between fixed fees within the scope agreed in the contract and individual estimates when unexpected situations or additional work arise, is also essential to keeping both sides satisfied.

At LegalAgent as well, by using AI not merely as an aid to individuals but as a work platform for the entire firm, we have adopted a fixed-fee system according to the number of contracts and the type of matter. Fixed fees apply to work within the scope defined in advance in the engagement agreement, and where work outside that scope is required, we confirm it through an advance estimate, which reduces the concern that unexpected working hours will be added to the invoice later.

Precisely because we are in an era in which AI makes routine work more efficient, I believe law firms should move away from measuring value by the length of time worked and should be evaluated by how far they have moved the client's business decisions forward. At LegalAgent, attorneys well versed in both the use of generative AI and corporate legal practice handle a wide range of matters, including contract review, financing and M&A. There are many situations in which we can help you resolve legal issues, so please feel free to contact us. Legal Agent, a Law Firm for the Generative AI Era