What each attorney actually costs the firm: overhead allocation per timekeeper

A managing partner we work with leads a six-attorney firm with $1.4M in annual fees. Every January he set billing rates using the same process: look at what each attorney collected last year, compare to what comparable firms are charging, and adjust. The firm’s Profit and Loss report (P&L) showed healthy margins.

When we built an attorney-level overhead model for the first time, two of his six timekeepers had net contributions below $50,000 for the year. One senior associate had collected $331,500 in fees. After salary, her share of rent, malpractice insurance, paralegal support, and research subscriptions, she contributed $35,800 to firm profit.

Where the blind spot comes from

Most small and mid-size law firms measure attorney performance by fees billed or collected per timekeeper. That tells you who is productive and at what rate. It does not tell you what each attorney costs the firm to run.

Overhead is not evenly distributed. An attorney who uses two paralegals, occupies a large private office, and handles cases that require expensive research tools carries more overhead than a partner who works remotely on fixed-fee transactional work. When overhead stays pooled at the firm level, billing rates reflect market positioning rather than actual cost recovery. Over time that gap widens: overhead grows as firms add staff or move to larger offices, and if rates do not keep pace, some timekeepers drift toward their break-even without anyone seeing it clearly.

What belongs in an attorney overhead model

Rent and occupancy. A senior attorney in a large private office carries a meaningfully different occupancy cost than a junior associate sharing space. Applying a flat per-attorney rent allocation understates the cost for higher-footprint timekeepers.

Malpractice insurance. Premiums vary by practice area and tenure. A litigation partner carries a higher rate than a transactional associate. Blending the total evenly understates the cost for litigation groups, where the real exposure is concentrated.

Paralegal and support staff. When paralegals are shared, the allocation should follow tracked time. Firms that pool all paralegal cost into general overhead miss the fact that some attorneys use three to four times more support staff hours than others.

Legal research and software. Westlaw, Clio, and litigation support platforms are billed firm-wide, but usage is not uniform. A practice group that relies on legal research for every case should carry a proportionate share, not an equal split with attorneys who rarely open the platform.

Bar dues and professional development. Continuing legal education (CLE) credits and bar dues are individual costs. Tracking them per timekeeper avoids spreading one attorney’s specialized expenses across the firm.

What the numbers looked like for one associate

Here is the full picture for the senior associate in the example.

The P&L showed $331,500 in collected fees from this attorney. The contribution model showed $35,800 in actual margin. The managing partner had considered her one of his stronger performers by revenue. She was, measured on fees. Not, measured on contribution after overhead.

Why this matters for rates and staffing

Billing rates. A rate that covered costs two years ago may no longer do so if paralegal salaries have increased, office rent has escalated, or the attorney has moved into a practice area with higher malpractice exposure. Rate reviews that rely on market comparables alone, without a loaded cost calculation underneath, can produce rates that appear sound but are no longer recovering firm overhead.

Staffing additions. When a firm considers adding a junior associate, the immediate question is usually whether that attorney can be billed out at a market rate. The more important question is what billing hours and rate they need to cover their full cost. Without a loaded cost model, firms sometimes find out a year later that a new hire never reached break-even.

How we build the model for law firm clients

For the firms we work with, we build a contribution margin report by timekeeper at least annually, and quarterly when the firm is growing or making staffing changes. The report allocates overhead using the firm’s actual cost structure: rent per square foot, paralegal cost by tracked time, malpractice insurance at each attorney’s individual rate, and general overhead as a percentage of gross fees.

The output is a single report: gross fees, collected fees, direct costs, overhead share, and net contribution for each attorney. Attorney-level tracking breaks down if firm costs are grouped into undifferentiated general overhead accounts in QuickBooks. Setting up the allocation categories is a one-time project. Running the report afterward is a routine pull.

Best practices for law firm administrators

• Document the allocation methodology once and apply it the same way every year. Changing the method makes timekeeper comparisons across periods meaningless.
• Track paralegal time by attorney, not only by matter. Without this, paralegal cost cannot be allocated accurately.
• Run the contribution report before every billing rate review. Rates should follow the cost model, not be set first and checked against it after.
• Revisit the overhead model whenever the firm adds office space, hires staff, or opens a new practice group. Each change shifts the allocation and can make old rate assumptions wrong.
• Use the break-even calculation when evaluating associate performance. An associate who has not reached their cost floor after 18 months is a different conversation than one who is comfortably above it.

Three questions worth asking

1. When you set billing rates last year, did you calculate each attorney’s full overhead cost, or did you set rates from market comparables alone?
2. For the attorney generating the most fees in your firm, what is their net contribution after salary, direct costs, and their allocated share of overhead?
3. If you added a junior associate today, what break-even hours and billing rate would they need after fully loading their share of firm overhead?

If you want to see where each attorney stands, send us your most recent year-end P&L and current headcount. We can run the contribution model before your next rate review.