What Is Big Law? The Firms, the Pay and Life Inside

Last updated: 24 October 2026. This guide uses the 2026 Am Law 100 (covering 2025 financial results) as reported by Above the Law and The Global Legal Post, firms’ published UK results for the year to April 2026, associate pay announcements, and ABA employment data for the law school class of 2025. It is general information, not legal or career advice.

Short answer: Big Law is the informal name for the largest and most profitable law firms, usually the Am Law 100 in the US and the Magic Circle and other elite firms in London. In 2025 Kirkland & Ellis became the first firm to pass $10 billion in revenue, US first-year associates now start at up to $235,000, and bonuses often depend on about 2,000 billable hours a year.

Key takeaways

• “Big Law” has no legal definition. It usually means the Am Law 100 or Am Law 200, ranked by gross revenue, plus the five Magic Circle firms in London and the largest international firms.
• The money is concentrated at the top. In the 2026 Am Law 100, 62 firms reported more than $1 billion in 2025 revenue, and Wachtell’s profits per equity partner reached about $12.15 million.
• Associate pay is lockstep by class year. Since 1 July 2026 the market scale set by Milbank runs from $235,000 for first-years to $455,000 for eighth-years, while Magic Circle firms pay newly qualified solicitors £150,000.
• Big Law is a minority path. About 18% of the US law school class of 2025 were in full-time, long-term jobs at firms of more than 500 lawyers ten months after graduating.

What is Big Law?

“Big Law” (also written BigLaw) describes the large commercial law firms that advise major companies, banks and private equity funds on deals, disputes, regulation and restructuring. The term is about scale and economics, not about a list of members. In practice people use it for firms that:

• have several hundred to several thousand lawyers, often across many countries;
• appear in the Am Law 100 or Am Law 200, the annual rankings of US firms by gross revenue published by The American Lawyer, or in its Global 200;
• pay associates on or near the “Cravath scale”, the lockstep salary grid explained in our Cravath scale guide;
• recruit mainly through summer associate programmes in the US and training contracts and vacation schemes in the UK.

Rankings measure different things. Revenue rankings favour very large firms, profits per equity partner favour small and highly selective firms such as Wachtell, Lipton, Rosen & Katz, and the Vault rankings reflect prestige as rated by lawyers. In the UK, the “Magic Circle” is the traditional label for five London-headquartered firms: A&O Shearman, Clifford Chance, Freshfields, Linklaters and Slaughter and May. Many large US firms also have big London offices and compete directly with them.

The ABA uses a simpler line when it reports graduate employment: law firms of more than 500 lawyers. That is a useful working definition when you compare law schools, because it is the category every school must report.

Which are the biggest Big Law firms by revenue?

The 2026 Am Law 100, published in April 2026 and covering 2025 results, showed another strong year. As Above the Law summarised, 94 firms grew revenue, 62 cleared $1 billion (up from 58), profits per equity partner rose 14% overall and revenue per lawyer rose 8.7%. The ten largest firms by gross revenue were:

Kirkland’s lead is large. The Global Legal Post reported that it had 595 equity partners in 2025 and, according to data from Pirical, 4,239 lawyers. The most profitable firm per partner was Wachtell, with profits per equity partner of $12.152 million, ahead of Kirkland at $11.121 million and Davis Polk at $9.8 million.

In London, Linklaters reported revenue up 6.8% to £2.5 billion and profit per equity partner up 11.4% to £2.5 million for the year to 30 April 2026, and A&O Shearman reported flat revenue of $3.7 billion with profit per equity partner up 12% to $2.9 million, according to the Global Legal Post. Freshfields no longer takes part in the annual UK results season. For a wider view, see our ranking of the biggest law firms in the world.

How much do Big Law lawyers earn?

Associates at large US firms are paid in lockstep, meaning everyone in the same class year earns the same base salary. Milbank raised its scale from 1 July 2026, as the Global Legal Post reported, taking first-years to $235,000 and eighth-years to $455,000, with increases of $10,000 to $20,000. Several firms matched, though not all; Cravath’s How to Apply page still says its New York associates are paid on a scale “currently ranging from $225,000 to $420,000”. Year-end bonuses come on top and are usually tied to hours.

Legal Cheek reported in September 2025 that 18 US firms in London paid newly qualified solicitors more than £170,000, led by Davis Polk, Gibson Dunn and Paul Weiss at £180,000. In July 2026 it reported that Macfarlanes had raised its rate to £150,000, in line with the Magic Circle. For how these figures compare with in-house and smaller firm pay, see our guides to corporate lawyer salaries and lawyer salaries in 2026.

How many hours do Big Law associates work?

The pay comes with long hours. Big Law firms typically measure associates by billable hours and link bonuses to a threshold. A&O Shearman announced in July 2024 that US associates and counsel must record 2,000 billable hours to qualify for year-end bonuses, with some credit for pro bono and “investment” time. In August 2025 Bloomberg Law reported that King & Spalding wanted associates to log 2,400 “productive” hours, at least 1,950 of them billable.

Hours worked are well above hours billed. NALP research published in 2016 found that associates at firms of more than 700 lawyers averaged 2,199 hours worked and 1,873 billable hours in 2014, and that two-thirds of offices at those firms reported 2,200 or more hours worked. Deal and trial deadlines also make the hours uneven, with very long weeks followed by quieter periods.

How is a Big Law firm structured?

Titles vary between firms and countries, but most large firms follow a similar ladder:

• Summer associate or trainee. US law students usually spend the summer after their second year at a firm, which is the main route to an offer. In England and Wales, future solicitors complete a training contract or qualifying work experience and the Solicitors Qualifying Examination.
• Associate. US associates are grouped by class year and paid by seniority until they are promoted or leave. UK firms use newly qualified, associate, senior or managing associate titles.
• Counsel or of counsel. Senior lawyers who are not partners, either on the way to partnership or in a long-term specialist role.
• Non-equity (income) partner. Many firms now have a two-tier partnership. Non-equity partners carry the title and usually a fixed salary plus bonus but have little or no share in profits.
• Equity partner. Owners of the firm who share its profits. Profits per equity partner, the headline figure in the Am Law rankings, is calculated per equity partner only.

The two-tier structure is one reason profit figures look so high: firms that keep the equity tier small spread profits among fewer people.

How do lawyers get into Big Law, and where do they go next?

Entry is competitive and heavily tied to law school. In the ABA’s employment data for the class of 2025, which we totalled from the ABA required disclosures compilation, 6,603 of 36,208 graduates (18.2%) were in full-time, long-term jobs at firms of more than 500 lawyers about ten months after graduating. At top schools the share is far higher; our guide to the T14 law schools shows rates of about 31% to 71% for the class of 2025.

Movement between firms is common. Lateral moves usually happen at the mid-level associate or partner stage, often to follow a practice group or for a better partnership prospect. Most associates do not stay to make partner. Common exits include:

• In-house legal teams at clients, a common move for mid-level associates; see our guide to in-house counsel roles.
• Government and regulators, including prosecutors’ offices and financial regulators.
• Smaller firms and boutiques, which may offer more responsibility, sometimes with lower pay.
• Business roles in private equity, banking, compliance or legal operations.

What are the pros and cons of Big Law?

Whether Big Law suits you depends on what you want from the first years of your career.

• Pros: the highest starting pay in law, high-value and often cross-border work, structured training, strong colleagues, and a CV that opens doors to in-house, government and business roles. Big Law salaries also make large law school debts easier to repay.
• Cons: long and unpredictable hours, billing pressure, limited control over your diary, narrow tasks as a junior on very large matters, and a partnership track that most associates will not complete.

Practice area matters too. Transactional groups such as M&A, finance and private equity tend to swing with deal markets, while litigation, restructuring and regulatory groups often stay busy in downturns. Our guide to which types of lawyer earn the most compares the main practice areas.

Frequently asked questions

What counts as a Big Law firm?

There is no official definition. Most people mean the Am Law 100 or 200 in the US, the Magic Circle and similar elite firms in London, and other large international firms. The ABA’s employment data uses firms of more than 500 lawyers.

What is the largest law firm in the world by revenue?

Kirkland & Ellis. The 2026 Am Law 100 put its 2025 gross revenue at about $10.56 billion, up nearly 20%, making it the first law firm to pass $10 billion. Latham & Watkins was second with about $8.3 billion.

How much does a first-year Big Law associate make?

In the US, $225,000 to $235,000 in base salary in 2026, depending on whether the firm has matched Milbank’s July 2026 raise, plus a year-end bonus. Magic Circle firms in London pay newly qualified solicitors £150,000.

What are the Magic Circle law firms?

The five London-headquartered firms traditionally called the Magic Circle are A&O Shearman, Clifford Chance, Freshfields, Linklaters and Slaughter and May. A&O Shearman was formed by the 2024 merger of Allen & Overy and Shearman & Sterling.

How many hours a week do Big Law associates work?

It varies by firm and practice, but bonus thresholds of about 2,000 billable hours a year imply well over 40 billable hours a week, and total hours worked are higher because training and administration are not billed.

Do you need to go to a top law school to work in Big Law?

Not always, but it helps a great deal. Nationally about 18% of the class of 2025 joined firms of more than 500 lawyers, while at several top schools more than 60% did. Strong grades at other schools can also lead to offers, especially in regional offices.

This article is general information about large law firms and legal careers and is not legal or career advice. Firm finances, pay scales and policies change frequently, so check the latest announcements before relying on any figure.