Lawyers + AI: 362 Addressable Hours a Year

What is the real, defensible ROI of giving a lawyer an AI assistant? We answer it the slow, checkable way — task hours from O*NET, pay from BLS, AI-addressable share from observed Claude.ai usage — and show every step from raw cell to net dollars.

Headline: a lawyer carries about 362 AI-addressable hours a year. At a loaded rate of $114.23/hour that is $41,351 of gross value; after a stated $12,000/year tooling budget, the Year-1 net is $29,351 per full-time employee.

Those numbers are a planning estimate built from defaults, not a quote. The three inputs — task hours, wage, and AI-addressable share — come from sealed public datasets; the three assumptions — a 2,080-hour work year, a 1.3× labor-loading multiplier, and the tooling budget — are stated in the open and adjustable in the calculator at the foot of this page. Change them and every figure recomputes.

Where does that value concentrate? In one task above all — Prepare legal briefs and opinions, and file appeals in state and federal courts of appeal. The Anthropic Economic Index marks it 55.4% AI-addressable, which by itself is 40 hours and $4,603 of the annual total, before the rest of the task list adds anything.

Who this is for

Owners and operations leads at small and mid-size firms — MSPs and internal IT, small law firms, clinics and billing companies, and independent agencies — who are pricing an AI assistant for lawyers and need a per-role number they can defend line by line. Every figure here traces to a sealed BLS and O*NET snapshot, not a vendor estimate.

The AI-exposure picture for lawyers

Across all lawyer work, the Anthropic Economic Index observes an AI-exposure rate of 16.7% — meaning 16.7% of this occupation's measured Claude.ai task interactions showed an automation or augmentation pattern. That is an observed-usage figure, not a ceiling on what is technically possible.

At the task level the picture is sharper. O*NET lists 22 distinct work tasks for this role. Of those, 4 have their own task-specific usage measurement in the Anthropic Economic Index; the remainder fall back to the occupation-level exposure above, and every row in the table below is labelled with which source it used (aei_task for a task's own data, aei_occ for the occupation fallback). We never silently mix the two.

For scale: BLS counts 747,750 people employed in this occupation nationally, at a mean wage of $182,760 a year. That wage is the spine of the dollar figures here.

The per-task automation map

Each row is one ONET task. Importance and Relevance are sealed ONET ratings; modeled hours allocates a 2,080-hour year across tasks in proportion to Importance×Relevance; AI-addressable share is the Anthropic Economic Index usage figure; hours saved and gross value follow from them. The table shows the 14 highest-value addressable tasks.

Reading one row: the top task above is modeled at 73 hours/year; the Economic Index puts its AI-addressable share at 55.4%, so 40 hours are addressable, worth $4,603 at the loaded rate. Nothing is rounded up: hours saved is hours × share, full stop.

How the net number is built

No black box. Here is every step:

1. Loaded hourly cost = (mean annual wage $182,760 ÷ 2,080 hours) × 1.3 loading = $114.23/hour. The 1.3× covers benefits, payroll tax, and overhead on top of base pay.

2. Addressable hours saved = the sum of (task hours × AI-addressable share) across the role's addressable tasks = 362 hours/year.

3. Gross annual value = 362 hours × $114.23 = $41,351/year.

4. Net Year-1 ROI = $41,351 gross − $12,000 stated tooling budget = $29,351 per FTE.

The break-even point is worth stating plainly: this role's AI-addressable work is worth $41,351 a year at the loaded rate, so any tooling spend below $41,351 per FTE is net-positive on hours alone — before any quality, speed, or capacity upside.

Method, provenance, and caveats

The single most important caveat: the Anthropic Economic Index measures observed Claude.ai usage patterns, not a theoretical "this much of the job can be automated." A high share means practitioners are already routing that task to AI; a low share can mean the task is hard to automate or simply that few people have tried. Treat these as a grounded default, then replace them with your own automatable share in the calculator — that is exactly what it is for.

The hour-allocation heuristic. O*NET does not publish hours per task, so we allocate the work year in proportion to each task's Importance×Relevance. It is a transparent, defensible split, not a stopwatch study; if you know your team spends disproportionate time on one task, the calculator lets you see the table and reason about it.

Why Importance×Relevance? O*NET rates each task on how important it is to the role and how relevant it is to a typical worker (the share who actually perform it). Multiplying the two ranks tasks by real time-pull — a high-importance task nearly everyone does outranks a niche one — which is precisely the weighting you want when dividing a fixed work-year. It is the most defensible allocation available short of a per-employer time study, and any row you disagree with is editable in the calculator below.

The wage is a national mean. BLS OEWS reports a $182,760 mean across all employers nationally (median $151,160). Your local, loaded cost may differ; set your own wage to localize the dollars.

What this is. A sourced, reproducible first estimate to start a buying conversation — not a guarantee of savings. The value of the method is that every input is sealed and checkable, so a skeptic can audit it rather than argue with a vendor's slide.

Data provenance

• O*NET 30_3 — task statements and Importance/Relevance ratings. This page includes information from O*NET 30.3 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. License: CC BY 4.0. Sealed snapshot 251d3df7766aa152, evidence 9e12c3890449ec21.

• BLS OEWS May 2024 — occupational mean wage and employment. Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2024. License: Public Domain (17 U.S.C. §105 — U.S. Government work). Sealed snapshot d032d178d7a95cdc, evidence 1237fd6700a000e9.

• Anthropic Economic Index — observed AI task/occupation exposure (Claude.ai usage). Source: Anthropic Economic Index (https://huggingface.co/datasets/Anthropic/EconomicIndex), released under CC-BY. Reflects observed Claude.ai usage patterns, not a measure of theoretical automatability. Pinned to commit db51ecb12920, sealed snapshot c6870bb780772e4f, evidence 66b4254a97b1e852.

Every numeral on this page is reproducible from those three sealed snapshots by re-running our open model — there is no hand-entered or estimated figure in the tables or the math.

FAQ

Is "16.7% AI exposure" the share of the job AI will replace?
No. It is the share of measured Claude.ai task interactions for this occupation that showed an automation or augmentation pattern — an observed-usage signal, not a replacement forecast.

Where does the $182,760 wage come from?
BLS Occupational Employment and Wage Statistics, May 2024 — the national mean annual wage for this occupation, used verbatim from the sealed snapshot.

How do you get 362 hours saved?
For each addressable task we multiply its modeled annual hours by its AI-addressable share, then sum. Modeled hours allocate a 2,080-hour year by each task's O*NET Importance×Relevance.

Can I change the assumptions?
Yes — the calculator below this article lets you set the wage, the work-year hours, the labor-loading multiplier, the tooling budget, and each task's automatable share. The net ROI updates live.

Why these three data sources?
O*NET gives the tasks, BLS gives the labor cost, and the Anthropic Economic Index grounds "how much is AI-addressable" in real usage rather than a guess. Each is public and pinned to a sealed snapshot.

See these hours come off a real lawyer workflow

The math above is the business case; the next step is watching it run. USTA builds the agentic workflows that actually do this lawyer work — drafting, routing, reconciling, and updating the systems of record — so the addressable hours above convert into capacity you keep instead of headcount you chase.

See how AI agents handle lawyers → — or bring this page's numbers to a scoping call and we will pressure-test them against your actual task mix.

Compare adjacent roles

Same sealed O*NET + BLS + Anthropic Economic Index method, other roles:

• Network Architects AI automation ROI →

• Network Support Specialists AI automation ROI →

• Medical Transcriptionists AI automation ROI →

Recompute with your assumptions

The interactive calculator below loads this role's sealed task table. Adjust the wage, hours, loading, tooling budget, or any task's automatable share, and watch the net Year-1 ROI move. The defaults are the sourced figures above; the controls are yours.