Solo-lawyer practice-economics terminology, defined

Realization rate

The percentage of recorded billable hours that are actually billed to a client at full rate. Industry sources — Clio's annual Legal Trends Report and Thomson Reuters Institute's State of U.S. Small Law Firms survey — consistently report realization rates in the low 80s for US solo and small firms. ClaimHour uses 81% as the working figure when converting captured hours to expected revenue.

Used in: Why solo lawyers leak $30,000 a year, the leak calculator.

Collection rate

The percentage of billed hours that the firm actually collects as cash. Industry sources report collection rates near 89% for US solo and small firms. The arithmetic that converts recorded hours into deposited revenue is: hours × realization × collection, which on the standard 81%/89% lands at roughly 72 cents on the recorded-hour dollar.

Used in: Why solo lawyers leak $30,000 a year, the leak calculator.

Utilization rate

The percentage of an attorney's available working time that is recorded as billable. The Clio Legal Trends Report has consistently reported utilization at roughly 31% of an 8-hour day across US private practice — about 2.5 billable hours of every 8 worked. The remaining 5.5 hours are administration, business development, supervision, training, and unbilled client work that never reaches an invoice.

Used in: Why solo lawyers leak $30,000 a year, The $1,250-a-week math.

Effective hourly rate

Total fee revenue from a matter divided by the total hours actually worked on it, regardless of how the matter was priced. The figure that flat-fee solos discover when they begin tracking time: a $4,500 immigration retainer that consumed 38 hours has an effective hourly rate of $118, even though the practitioner's notional rate is $250. The gap between notional and effective is, for measured flat-fee practices, typically $40–$80/hour.

Used in: The flat-fee solo leak.

Engagement letter

The contract that defines the scope of representation and the fee arrangement between attorney and client. The single instrument that determines whether a flat-fee matter will be priced correctly. Solos who measure cumulative hours-per-matter have data to revise the engagement letter at the start of the next year; solos who do not, do not — and the leak persists across renewal cycles indefinitely.

Used in: The flat-fee solo leak.

UTBMS activity codes

Uniform Task-Based Management System — a 1990s-era industry-standard set of task and activity codes (e.g., L110 fact investigation, L210 pleadings, L320 document production) used in itemized legal billing, particularly in insurance defense and corporate work where carriers require coded entries. Most US solos do not bill in UTBMS, but the taxonomy is the lingua franca of legal billing software.

Used in: site-wide compatibility framing across /seo/ buyer-guide pages.

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Lodestar method

The dominant method for calculating attorneys' fees in fee-shifting cases. Reasonable hours expended multiplied by a reasonable hourly rate equals the lodestar; the court may adjust the lodestar up or down for case-specific factors (the Johnson factors, results obtained, novelty). Authoritatively articulated in Hensley v. Eckerhart, 461 U.S. 424 (1983) and reaffirmed for federal civil-rights work in Perdue v. Kenny A., 559 U.S. 542 (2010).

Used in: The contingency-fee solo leak.

Fee shifting

Statutory or contractual provisions that allow a prevailing party to recover attorneys' fees from the loser. In US practice, fee shifting applies to civil rights (42 U.S.C. § 1988), Title VII employment, ADA, FCRA, FDCPA, FMLA, ERISA § 502(g), Equal Pay Act, Truth in Lending Act, and dozens of state-law analogs. In fee-shifting cases the attorneys' fees are often a multiple of the underlying damages, which makes the lodestar fee petition the financially material event in the case.

Used in: The contingency-fee solo leak.

Hensley v. Eckerhart

Supreme Court decision (461 U.S. 424, 1983) establishing the lodestar method and, critically, requiring fee applicants to produce contemporaneous time records establishing the hours reasonably expended on the prevailing claims. Records that are reconstructed after the fact — from memory, calendar review, or file review — are routinely discounted 25–60% under the cited theory that they are inherently unreliable. The records-quality discount applied at the fee petition is, for many fee-shifting practices, the largest single dollar figure in the case.

Used in: The contingency-fee solo leak, FAQ § Contingency-fee practices.

Records-quality discount

The percentage reduction a court applies to a lodestar fee petition for inadequate, vague, block-billed, or reconstructed time records. Typical discounts range from 5% (well-kept contemporaneous records with minor gaps) to 60% (reconstructed-from-memory records on a multi-year matter). On a $120,000 lodestar a 35% discount is $42,000 of fee left on the courthouse floor; the difference between a 5% and a 35% discount on six fee petitions per year is roughly the cost of a first-year associate.

Used in: The contingency-fee solo leak.

Contemporaneous time records

Time records created at or near the moment the work is performed, rather than reconstructed afterward. The Hensley standard treats contemporaneous records as the baseline for a credible lodestar fee petition. Contemporaneous does not require minute-by-minute timestamps — it requires that the entry was made while the lawyer's memory of the work was current, typically within 24–48 hours, with enough specificity (matter, task, tenth-hour duration) to allow another lawyer to evaluate reasonableness.

Used in: The contingency-fee solo leak.

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ABA Formal Opinion 512 (2024)

American Bar Association Standing Committee on Ethics and Professional Responsibility opinion (July 2024) addressing lawyers' use of generative AI tools. Treats content-reading AI tools — those that ingest email bodies, document text, or call transcripts — as requiring affirmative client consent and careful vendor due diligence. Metadata-only tools, which do not read privileged content, fall outside the opinion's core concern. ClaimHour's architecture is shaped specifically to sit on the metadata side of this line.

Used in: Privilege-preserving metadata-only architecture, FAQ § Privilege, metadata, and ABA Formal Opinion 512.

ABA Model Rule 1.5 (Reasonable Fees)

The model rule (adopted with state-specific variation by every US jurisdiction) governing the reasonableness of attorneys' fees. Lists eight factors for reasonableness including time and labor required, novelty, the customary rate, results obtained, the nature of the relationship, and the experience of the lawyer. For flat-fee work, Rule 1.5 reasonableness becomes a backward-looking question that measured time directly answers — for hourly work, it shapes the fee-petition lodestar.

Used in: The flat-fee solo leak.

ABA Model Rule 1.6 (Confidentiality)

The model rule governing confidentiality of information relating to the representation of a client. Broader than the evidentiary attorney-client privilege: covers all information relating to the representation, regardless of source, with limited exceptions. Adopted in some form by every US jurisdiction. Vendor selection for any tool that touches client data — including a time-tracking tool — implicates Rule 1.6 obligations to make reasonable efforts to prevent inadvertent disclosure.

Used in: Privilege-preserving metadata-only architecture.

Attorney-client privilege

Common-law and statutory evidentiary privilege protecting communications between attorney and client made in confidence for the purpose of obtaining legal advice. Distinct from Rule 1.6 confidentiality (which is broader). Privilege protects the substance of the communication, not the fact of representation; courts have consistently treated call metadata (number dialed, duration) and timekeeping records as outside the substantive-communication boundary the privilege defends.

Used in: Privilege-preserving metadata-only architecture, FAQ § Privilege and architecture.

Two-party (all-party) consent

The wiretapping standard in 11 US states (California, Connecticut, Delaware, Florida, Illinois, Maryland, Massachusetts, Montana, Nevada, New Hampshire, Pennsylvania, Washington — the precise list shifts with state legislatures) requiring that all parties to a phone call consent before the call may be recorded. The remaining states are one-party-consent. ClaimHour does not record audio under any consent regime; metadata-only capture (duration, counterparty, direction) is not covered by either standard.

Used in: Privilege-preserving metadata-only architecture.

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Hourly billing

Fee structure in which the client is invoiced for time recorded against the matter at a stated hourly rate. The dominant fee structure for civil litigation, family law, business law, and the majority of US solo practice. The leak shape: time worked but not invoiced — a measurement-to-billing problem solved by capturing every billable moment as it happens.

Used in: Why solo lawyers leak $30,000 a year.

Flat-fee billing

Fee structure in which the engagement letter prices the entire scope of representation as a single dollar figure regardless of hours expended. Common in immigration, criminal defense, family law (uncontested), estate planning, and entity formation. The leak shape: engagement letters priced from gut feel rather than measured cost — a measurement-to-pricing problem solved by tracking hours-per-matter to revise next year's pricing schedule.

Used in: The flat-fee solo leak.

Contingency-fee billing

Fee structure in which the lawyer is paid a percentage of the client's recovery (typically 33⅓% pre-suit, 40% post-suit) only if the case prevails. Dominant in personal injury, plaintiff-side employment, civil rights, FCRA/FDCPA consumer, ERISA benefits, and products liability. The leak shape: settlements accepted below cumulative cost-basis, lodestar fee petitions discounted for thin records, and portfolio mispricing across case archetypes — a measurement-to-portfolio problem.

Used in: The contingency-fee solo leak.

Hybrid (contingent + hourly) arrangement

Fee structure combining an upfront hourly retainer with a contingent share of any recovery. The most common arrangement in plaintiff-side employment and civil-rights work. Carries every leak shape from the practice-economics trilogy at once: hourly under-invoicing on the retainer portion, contingent portfolio blindness on the back end, and statutory fee-petition exposure under fee-shifting statutes. The strongest case for measurement of any contingency-flavor profile.

Used in: The contingency-fee solo leak.

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Practice management system (PMS)

Software that bundles matter management, calendaring, document storage, time tracking, billing, trust accounting, and client portal into one suite. Dominant US legal-tech category. Pricing: $39–$159 per user per month at list. Roughly 70% of US solos use a PMS; ClaimHour's primary ICP is the remaining ~30% who bill out of QuickBooks and Word and decline the PMS subscription on principle.

Used in: Clio vs Smokeball vs MyCase honest ranking, /compare/ index.

Clio Manage / Clio Complete / Clio Duo

Largest US legal-tech company by user count. Clio Manage is the entry tier; Clio Complete ($89/user/month at 2026 list) is the most-purchased tier and bundles Clio Duo, the passive-capture feature that watches calendar, email participation, and document edit time. Three-year list-price total at the Complete tier is roughly $3,204 for one user, before payment processing and implementation cost.

Used in: Clio vs Smokeball vs MyCase honest ranking, Clio vs ClaimHour.

Smokeball Grow / Smokeball AutoTime

Windows-centric premium PMS popular in family law, immigration, and small civil. Smokeball Grow ($79/user/month at 2026 list) is the recommended tier; AutoTime is the passive-capture feature with deep desktop hooks (file system, Word, Outlook) that gives Smokeball materially higher capture coverage on Windows than its competitors. Three-year list-price total at the Grow tier is roughly $2,844 for one user, plus the Windows-stack cost for Mac households.

Used in: Clio vs Smokeball vs MyCase honest ranking, Smokeball vs ClaimHour.

MyCase Pro / MyCase IQ

Price-leader full-PMS tier. MyCase Pro ($79/user/month at 2026 list) is the recommended tier; MyCase IQ is the passive-capture feature. The cheapest entry into a full PMS with passive capture; comparable feature set to Clio Complete and Smokeball Grow at a similar price. Three-year list-price total is roughly $2,844 for one user.

Used in: Clio vs Smokeball vs MyCase honest ranking, MyCase vs ClaimHour.

Billables.ai

Standalone passive-capture tool ($39/user/month at 2026 list) that integrates with Clio, Smokeball, MyCase, and PracticePanther. Useful for solos already on a PMS who want better passive-capture than the bundled feature provides. Not a substitute for a PMS, and not the right pick for the no-PMS solo cohort because it presupposes the existence of a billing destination it can write into.

Used in: /seo/billables-ai-alternative.

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Metadata-only architecture

Capture architecture that records only the metadata about communications and work — call duration, counterparty phone number, direction; per-thread email send and receive counts plus subject-line keywords; document edit-window time per matter folder — and never stores audio, transcripts, email bodies, or document contents. The architectural choice that places ClaimHour outside ABA Formal Opinion 512's content-reading-AI scope and outside the HIPAA covered-tool perimeter.

Used in: Privilege-preserving metadata-only architecture.

Passive capture

Time tracking that runs in the background without lawyer-initiated start/stop actions. The opposite of stopwatch-based timekeeping. Realistic capture coverage: 65–80% of leaked hours for the major PMS-bundled implementations (Clio Duo, Smokeball AutoTime, MyCase IQ); higher for tools with deeper system hooks. Captures the moments lawyers forget — the 6-minute call between meetings, the 14-minute email exchange before lunch, the 25-minute Sunday-evening draft.

Used in: Why solo lawyers leak $30,000 a year, Clio vs Smokeball vs MyCase honest ranking.

Tenth-of-an-hour (0.1) rounding

The dominant US legal-billing increment: time is rounded up to the nearest 0.1 hour (six minutes), so the smallest billable unit on a typical invoice is 0.1 = 6 minutes. A 4-minute call rounds to 0.1; an 8-minute call rounds to 0.2. The rounding convention, applied honestly, slightly inflates total billed time relative to actual time worked — which is one of the few places the bar's billing norms favor the lawyer.

Used in: pricing-grid feature line on the homepage; /seo/automatic-time-tracking-for-attorneys.

QuickBooks IIF export

Intuit Interchange Format — a tab-delimited file format for importing transaction data into QuickBooks Desktop. The standard egress shape for time entries written into QuickBooks-based bookkeeping for solo practices. ClaimHour writes IIF files for users who keep books in QuickBooks Desktop; QuickBooks Online users get a CSV import path with the same field structure.

Used in: /seo/quickbooks-for-lawyers-time-tracking.

LawPay (export integration)

The dominant US legal-payments processor. Integrates with most PMS systems; also accepts direct API submissions of invoices and time entries. ClaimHour exports approved time entries directly to LawPay using the user's own credentials, so the time data flows from device → LawPay without transiting ClaimHour's servers. LawPay's IOLTA-aware accounting separates trust deposits from operating funds, which is why solos use it rather than a generic processor.

Used in: /seo/lawpay-time-entry-import.

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