Four structural billing failure modes: (1) the dual-record collapse — treating the billing record as an invoice artifact rather than evidence of damages; (2) the reservation of rights response cycle — 4–10 hours of coverage analysis at 50% reconstruction capture; (3) the UM/UIM defense IME challenge response — 5–10 hours of clinical counterargument at 50% capture; (4) the coverage negotiation call compounding — 8–15 calls per case at 35–45% capture. A 20-case UM/UIM practice at $400/hr: $164,000–$210,000 annual settlement demand reduction from billing undercount.
Four structural records failure modes: (1) the administrative exhaustion phase gap — 60–120 hours of pre-complaint work with no billing infrastructure; (2) the claim-file disclosure review compression — a 500–3,000 page record reviewed across sessions becomes one block entry; (3) the treating-physician call avalanche — 15–30 calls distributed over 14–26 months at 30–50% reconstruction capture; (4) the long-timeline compression failure — 30–48 month reconstruction gaps. A 5-case ERISA LTD practice at $350/hr loses $55,000–$90,000 per year to records quality.
Three failure modes drive the corporate time-tracking gap: (1) transaction-day compression — a 14-hour M&A closing day bills as 8–9 hours because 15–25 sub-45-minute work segments are invisible to end-of-day reconstruction; (2) the invisible board meeting prep cycle — a 2-hour meeting hides 8–12 hours of prior-minutes review, agenda-drafting calls, consent-package work, and director email Q-and-A; (3) GC retainer underpricing — retainers priced on feel rather than consumed-hour data systematically subsidize the highest-demand clients. For a mixed 12-deal corporate practice with GC board clients: $105,000–$177,000 annual revenue gap.
The US Trustee Guidelines are the strictest contemporaneous-records standard in federal practice. Three structural failure modes: (1) the § 341 prep cycle compression problem — 5–9 hours of SOFA review, asset analysis, and client preparation spread across short sessions rarely logged in a flat-fee practice; (2) the Chapter 13 modification-cycle call avalanche — 300–600 trustee and creditor calls per year across a 100-case portfolio, invisible in reconstructed records when any case later requires an above-cap § 330 petition; (3) the adversary proceeding records fragmentation problem — § 547, § 548, § 523, and § 727 adversaries each require a separate § 330 application with records completely segregated from the main case. In a mixed practice of 40 Chapter 7, 60 Chapter 13, and 2 Chapter 11 cases per year with 8 adversary proceedings, the documented vs. reconstructed gap is $57,750–$157,000 per year.
State WC fee schedules are a floor, not a ceiling. Most states allow extraordinary-services petitions requiring contemporaneous lodestar records. Three failure modes prevent WC solos from building the record: (1) the 20-month case compression problem — adjuster and physician calls cannot be reconstructed across a two-year timeline; (2) the IME-intensive case records gap — 12–40 hours of IME preparation across two to four examination cycles almost never appear at full value in reconstructed petitions; (3) the multi-matter attribution problem — WC and companion civil case activity must be per-matter tagged at the time of the work. In a 40-case WC practice with five to eight above-schedule-eligible cases per year, the documented vs. reconstructed gap is $45,000–$85,000 per year.
15 U.S.C. § 1692k(a)(3) gives FDCPA plaintiffs attorney's fees as part of the court's award. Courts apply the Hensley lodestar framework and scrutinize each claimed hour for actual necessity and per-matter attribution when fees significantly outsize the $1,000 individual statutory damages cap. Three structural failure modes: (1) cross-contamination — hours from one case attributed to another in reconstruction across 100–200 similar matters; (2) batch-work attribution — reviewing 30 credit reports in a three-hour session cannot be split per-matter without a contemporaneous log; (3) the settlement-call avalanche — 20–40 settlement negotiations per week across an active docket accumulate 90–360 hours per year of call time that is impossible to attribute per-matter from memory. A 100-case FDCPA practice with contemporaneous records recovers 32–42 fee-petition hours per case; without them, courts cut to 19–26 hours — a $3,900–$6,400 per-case difference at $350/hr.
Industry data from the Clio Legal Trends Report puts the average solo attorney's realization rate at roughly 81% and collection rate at roughly 89%. Combined, those two rates mean about 72 cents of every recorded billing-system dollar reaches the bank — before accounting for hours never recorded at all. Add a 78% capture rate and the effective hourly rate on all hours worked falls to about 56% of the stated rate: a $250/hr attorney effectively earns $141/hr. The realization gap has four shapes: hours never captured that slip into the billing record as partial entries, courtesy write-downs, estimate-cap overruns, and disputed-entry adjustments. The collection gap has four shapes: stale invoicing, payment-plan attrition, pre-litigation write-offs, and hard bad debt. Closing both gaps starts with capture.
Most solo attorneys track one billing number: invoice value sent this month. Tighter practices track two: invoice value sent and cash actually received. Very few track all three — hours worked, hours billed at full rate, and hours ultimately paid for. The realization rate is the ratio of hours invoiced at full rate to hours recorded. The collection rate is the ratio of dollars collected to dollars invoiced. The effective hourly rate is total collected divided by total hours worked. At $250/hr stated, 200 hours of work, 81% realization, and 89% collection, the effective rate is $250 × 0.81 × 0.89 = $180.23/hr on recorded hours — and lower still if the 200 recorded hours were themselves only 78% of hours actually worked.
Seven federal fee-shifting statutes make contemporaneous time records mandatory for plaintiff-side employment cases regardless of the underlying fee structure. The lodestar petition is available in addition to the contingent share — on a typical single-plaintiff discrimination case, that means $60,000–$100,000 of additional recoverable attorney's fees that a practice without records cannot access. The records-quality discount under Hensley v. Eckerhart and Welch v. Metropolitan Life runs 10–35% on employment petitions, with the HR-investigation-review block-billing problem producing the highest cut rates. Deposition multiplication — the expansion from three planned depositions to nine or more as comparators and decisionmakers are identified — adds 120–225 unbudgeted hours in a typical single-plaintiff case. Adding the expected lodestar to the cost-basis ratio denominator gives the practice more hours before the flag fires, but makes the crossing more expensive: the practice has committed more time than the contingent share alone would justify, relying on a lodestar recovery that is available only if records support the petition.
Seven federal fee-shifting statutes make contemporaneous time records mandatory for every employment case with a prevailing-party claim: Title VII (42 U.S.C. § 2000e-5(k)), the ADA (42 U.S.C. § 12205), the FMLA (29 U.S.C. § 2617(a)(3)), ERISA § 502(g), the FCRA (15 U.S.C. § 1681n(a)(3)), the Equal Pay Act (29 U.S.C. § 216(b)), and 42 U.S.C. § 1988. All seven compute the award under the lodestar method — reasonable hours at a reasonable rate — from the attorney's time records. The lodestar is available in addition to the contingent share. On a $130,000 settlement with a 33% contingency, the contingent share is $42,900. The lodestar petition on the same case, supported by 250 hours of contemporaneous records at $350/hr, seeks an additional $87,500 from the defendant. The practice without records loses access to the lodestar petition and collects only the contingent share.
A hybrid contingent–hourly engagement letter needs eight specific clauses to pre-authorize the cost-basis conversation before it becomes urgent. Clause 1 bounds the scope at phase level. Clause 2 establishes the cost-basis ratio threshold as a contract trigger for a ten-day meeting. Clause 3 defines the expected-contingent-share calculation and schedules its disclosure at case milestones. Clause 4 requires written amendments before any scope-expanding work begins, with counsel not obligated to commence without the signature. Clause 5 gives the client monthly access to the ratio and burn rate. Clause 6 specifies cost-advance terms. Clause 7 documents client consent to Rule 1.16(b)(6) withdrawal at the 90% threshold. Clause 8 gives counsel the right to convert unamended scope expansions to an agreed hourly rate. Together, these eight clauses turn the flag's output from a surprise disclosure into a scheduled, contractually authorized event the client anticipated at signing.
The hybrid contingent–hourly arrangement looks, from the outside, like the safest fee structure in a plaintiff-side portfolio: the lawyer is paid hourly for bounded phases and contingently for the core judgment or settlement recovery. In practice, hybrid arrangements carry the highest scope-creep exposure of any fee structure, because they combine two billing mechanisms and two scope assumptions simultaneously. The discovery phase — where document production explodes, depositions multiply, and expert scope creeps — is almost always contingency-billed in a hybrid arrangement, which means it is the phase where the cost-basis calculation accumulates fastest and is reviewed least. The engagement letter's eight clauses make the cost-basis calculation visible to the client from the day the case opens, and pre-authorize the conversation that the flag will eventually trigger.
A contingency case is in cost-basis when cumulative captured hours × notional billing rate < fee_pct × E[settlement value × probability of recovery], plus any statutory fee-shifting recovery the case is likely to produce. The case is out of cost-basis the first week that inequality flips. The discovery-scope-creep flag is the internal warning that fires when a configured threshold of the expected contingent share is reached — the default is 70% — so that the conversation about the case's economics happens before the crossing rather than after it. The flag depends on a single input the practice has historically not captured: actual hours per case, week over week. Passive metadata-only capture supplies that input without manual timekeeping. The four shapes the crossing takes in discovery are defendant motion practice, document-production explosion, deposition multiplication, and expert-witness scope creep; each of the four has a recognizable trajectory in the captured-hours data. The four options when the flag fires are: continue (with eyes open), drop a count to focus on the prevailing claim, accept early settlement at a number the practice would otherwise have rejected, or initiate the difficult Rule 1.5 / Rule 1.16 conversation about fee modification or withdrawal. On a typical five-case contingency book, the expected portfolio-wide dollar impact of catching the two or three crossings per year at 70% rather than at resolution runs $40,000–$120,000.
The arithmetic of cost-basis is not subtle. The lawyer's investment in a contingency matter is the cumulative hours worked, valued at a notional billing rate that approximates what the lawyer would have charged on an hourly engagement of the same complexity. The lawyer's expected return is the contingency percentage of the expected settlement value, weighted by the probability of recovery, plus any statutory fee-shifting award the case is likely to produce on prevailing claims. The case is in cost-basis when investment is less than expected return. The case is out of cost-basis when investment crosses expected return. The line is computed continuously, every week the case is open, and it moves in two directions over the life of the case: investment moves monotonically up, and expected return moves around as discovery clarifies the actual exposure, the actual liability theory, and the actual probability of recovery.
A federal fee-shifting application — under 42 U.S.C. § 1988 (civil rights), Title VII (employment), the Americans with Disabilities Act, the Fair Credit Reporting Act, the Fair Debt Collection Practices Act, the Family and Medical Leave Act, ERISA § 502(g), the Equal Pay Act, and the Truth in Lending Act, plus most state civil-rights and consumer-protection statutes — is filed as a motion supported by a memorandum of law and an attorney's fee-petition affidavit. The lodestar (reasonable hourly rate × hours reasonably expended on prevailing claims) is calculated on the affidavit. The affidavit has eight paragraphs that the court will read with care: (1) the formula recital citing Hensley v. Eckerhart, 461 U.S. 424 (1983), Blum v. Stenson, 465 U.S. 886 (1984), and Perdue v. Kenny A. ex rel. Winn, 559 U.S. 542 (2010); (2) the hourly-rate paragraph, supported by a State Bar survey, the Real Rate Report, the Laffey or USAO Matrix where applicable, and comparable fee orders in the same district; (3) the credentials paragraph, anchoring the rate; (4) the hours table, recorded to the tenth of an hour, contemporaneously, with task-specific descriptors; (5) the contemporaneity affirmation, stating in haec verba that the records were created in real time; (6) the prevailing-party allocation, distinguishing prevailing from non-prevailing claims under Hensley step one; (7) the Johnson factors paragraph, applying the twelve factors of Johnson v. Georgia Highway Express, Inc., 488 F.2d 714 (5th Cir. 1974), or its circuit-equivalent; and (8) the prayer for relief, with the dollar figure, the fees-on-fees reservation, and post-judgment interest. The records-quality discount is applied at paragraph (4) and is the largest single dollar variable in the petition. The fix is a single-instrument fix: contemporaneous capture of every increment of time at the moment it is spent, in the format the affidavit will quote verbatim.
The motion-for-attorney's-fees order from the court is some variant of the language in Federal Rule of Civil Procedure 54(d)(2)(B): file the motion within fourteen days of the entry of judgment, supported by an itemization of the fees claimed. The itemization is conventionally embedded in the lawyer's affidavit — sometimes called a declaration in the federal courts that follow the Rule 56 declaration form, with substantively the same content — and the affidavit is what the court treats as the evidentiary record on the hours figure. The internal time-tracking spreadsheet, the LEDES export, the QuickBooks ledger, the Clio export, the printed time-record summary: none of these are the document. The affidavit is the document. The affidavit either contains the underlying entries paragraph by paragraph or attaches them as a sworn exhibit. The court reviews them in that form.
Contingency-fee solos — personal injury, plaintiff-side employment, civil rights, FCRA/FDCPA consumer, ERISA, products liability — do not leak revenue through unbilled hours, and they do not leak it through mispriced engagement letters. They leak it through four other holes: (1) portfolio mispricing, where two or three case archetypes consume disproportionate effort relative to the contingent share they produce, hidden inside a book that nominally hits its win rate, (2) lost lodestar fee awards on statutory fee-shifting cases, where the absence of contemporaneous time records is discounted 30–60% at the fee petition under Hensley v. Eckerhart, (3) settlements accepted below cumulative cost-basis, where capital lockup, senior-lawyer time, and hard-cost advances were never aggregated to compute the floor, and (4) discovery scope creep driven by opposing-counsel attrition tactics that the practice absorbs because nothing forces the math. Across the contingency-heavy solo books we have studied, leak runs $40,000–$120,000 a year — concentrated in three or four cases per year that settled or were dropped at or below cost-basis, plus the fee petitions where the lodestar was reduced for thin records. The lever is the same as in the prior two posts — passive metadata-only capture of actual time-per-case — but the downstream output is different again. Hourly solos use the data to bill more accurately; flat-fee solos use it to price more accurately; contingency solos use it to screen and price the portfolio and to defend the lodestar at fee-petition. Same instrument, third downstream artifact. This post is the arithmetic, by practice area.
Contingency work is a smaller share of US solo practice than the public assumes — somewhere around 18–24% of total solo matter volume by ABA TechReport and Clio Legal Trends counts — but it is a much larger share of the population we actually encounter on r/Lawyertalk and in plaintiff-side practice areas. Personal-injury solos are the largest single segment; plaintiff-side employment and civil-rights firms are the second; the long tail includes ERISA benefits, FCRA/FDCPA consumer, products liability, qui tam, and a small but vocal group of contingent-fee construction-defect and securities-litigation practitioners.
Flat-fee solos — immigration, criminal defense, family-law uncontested, small estate planning, modest-fee transactional — do not leak revenue through unbilled hours. They leak it through five other holes: free intake calls that never convert, engagement letters priced from gut feel rather than data, undocumented scope creep that should have triggered an additional-fee letter, post-engagement work the practice swallows because the matter is "closed," and the long-tail bad-fit client who consumes three times the average effort for the same flat fee. Across the practices we have studied, the realized hourly rate runs 18–32% below the engagement letter's implied rate — equivalent to $50–$100 of margin erosion per matter on a typical $3,000–$5,000 flat fee, or $30,000–$80,000 a year for a solo handling 60–100 matters. The lever is the same as in the hourly post — passive metadata-only capture of actual time-per-matter — but the downstream use is different. Hourly solos use the data to bill more accurately. Flat-fee solos use the data to price more accurately and to flag scope creep before it metastasizes. Same instrument; different output. This post is the arithmetic, by practice area, with concrete numbers.
Solo practice in the United States is more flat-fee than the legal-press narrative implies. Per ABA TechReport and the Clio Legal Trends data over the past three years, somewhere between 38% and 44% of US solo matter volume is billed on a flat-fee basis at intake — concentrated in immigration (typically 70–85% flat-fee), criminal defense (60–75%), uncontested family-law work like simple divorces and prenups (50–65%), small estate planning (80%+), and modest-fee transactional work like real-estate closings, business-formation packages, and simple contracts. Hybrid is also common — a flat fee for the main matter, hourly for materially out-of-scope work, contingent for the upside in injury cases.
The hourly leak post implicitly assumed the reader was selling time. Half the audience was not. Several of the substantive replies on r/Lawyertalk and on LinkedIn made the same point: the leak we described did not feel like the leak they had. They were right. The leak in flat-fee practice is not under-recording time; it is under-pricing engagements relative to the actual cost of producing them. Different mechanism, different downstream artifact, but the same underlying problem — the practice does not know how long its work actually takes — and the same lever — measurement that makes the truth visible.
If you have already decided you want a full practice management system, the defensible default for a US solo lawyer in 2026 is Clio Complete at $89/user/month — broadest integration ecosystem, mature passive capture (Clio Duo) bundled in the tier most solos already buy, the safest "no one ever got fired for picking it" choice. Smokeball Grow at $79 beats Clio for Windows-only practices that value AutoTime's deeper desktop hooks; the catch is that the entire stack is Windows-native, which on a Mac means Parallels and an extra $350-$700 of one-time cost. MyCase Pro at $79 is the cheapest full-PMS path to passive capture and a strong contender for solos whose primary lever is price, with the trade that the integration ecosystem is the smallest of the three. None of the three is the right pick if your real prior is "I refuse to pay PMS tax for tools I already have" — that is the no-PMS solo profile (~30% of US solos per the ABA TechReport), and the right answer for that cohort is a focused billable-hour-capture tool, not a full PMS at any tier. We disclose at the bottom that we built one of those tools, and we explain why we wrote a ranking that does not push it for the first ninety percent of the page.
The /compare/ pages on this site walk through Clio, Smokeball, and MyCase one-by-one against ClaimHour, with three-year cost tables and feature matrices. This post does something different: it scores the three PMS systems against each other, on the same standardized solo-lawyer week, and ranks them on capture accuracy first and total cost second.
The test week is a synthetic but realistic Monday-through-Friday for a solo family-law and estate-planning practice in a mid-tier US metro. The principal works from a home office on weekdays with one in-person client meeting per week and one court appearance. They have an iPhone and a MacBook Pro, run QuickBooks Online Essentials for books, and have 22 active matters. Their median hourly rate is $275. The week contains twelve discrete capture-able events we will use to score each PMS:
Five hours a week × $250/hour × fifty weeks is $62,500 of gross billable leakage a year — about $45,000 net after realization and collection discounts. That number is close enough to the all-in cost of a first-year associate at solo-firm scale ($130k–$160k loaded) that the comparison is sometimes presented as "hire to plug the leak." It is the wrong comparison. A new associate generates leak before they reduce it: the supervising lawyer's time spent reviewing, redrafting, and feeding work to the new hire is itself billable work pulled out of client matters. Recovery, on the other hand, captures hours the principal is already working — no capacity expansion, no work-feeding overhead, no realization ramp-up, and no risk that the new hire walks at month seven. This post lays out the two arithmetics side by side, surfaces the line items each model hides, and gives you a five-question test for which lever your practice should pull first. Spoiler: for most US solos in 2026, the leak is the binding constraint and the hire is a rationalization for not measuring it.
By the time a US solo lawyer has been in practice three or four years, the same shape of problem has usually showed up. The principal is working sixty-hour weeks. The matters keep getting heavier. The intake conversations keep ending with "can I send you a friend who needs help?" The natural response — the one every podcast about scaling a small firm endorses — is to hire. Add capacity. Find a hungry first-year, train them up, double the throughput.
The harder-to-see alternative is to ask whether the practice is actually capacity-bound or whether it is leak-bound. Capacity-bound means the principal is genuinely at the limit of their billable hours and the matter pipeline is full. Leak-bound means the principal is generating sixty hours of work a week, billing forty-five of it, and writing off the rest as the cost of solo practice. The two situations have the same surface symptom — overworked principal, full inbox, growing matter list — and they have radically different solutions.
We wrote about the leak side in detail in why US solo lawyers leak $30,000 a year in unbilled hours. The short version is that almost every solo billing hourly is under-recording 5–10 hours a week, almost entirely in the small-moment work — six-minute calls, eleven-minute emails, weekend drafts. This post is about the other door: what hiring actually costs, what recovery actually costs, and how to decide which lever to pull. Reading the leak post first is helpful but not required.
ClaimHour watches four surfaces — calls, email, documents, and calendar — and records only metadata from each: durations, counterparty identifiers, subject-line keyword matches, edit-window times. It never reads audio, email bodies, or document contents. Everything lives in a local SQLite database inside macOS application support; nothing leaves the device until the user explicitly exports an approved time entry. The architecture is deliberately narrower than every incumbent that touches this space — Clio Duo, Smokeball AutoTime, Billables.ai — because ABA Formal Opinion 512 (2024) treats content-reading AI tools as requiring affirmative client consent, and the 120,000-strong no-PMS solo audience has already decided they would rather forgo capture than take on that workflow. This post walks the four capture paths, the refusal list, the egress boundary, and the three-question privilege test we apply to every design decision.
Every time-tracking vendor that reads a lawyer's phone, email, and documents has a privacy policy. Most of those policies say roughly the same thing: we will not misuse your data; we encrypt at rest; we comply with applicable law. That language is fine for a CRM. It is not fine for an attorney-client-privileged communication.
Privilege does not bend to a vendor's best intentions. The question a state bar asks — and the question the r/Lawyertalk threads keep asking — is not "does this vendor promise to behave?" It is "what does this vendor have the capability to see?" A tool that can see the body of a privileged email already has a potential privilege problem, independent of what it promises to do with what it sees. A subpoena, a breach, a future acquisition, a change in terms of service — any of those turns capability into exposure.
The only honest answer to that question is architectural: the tool cannot misuse what it does not have access to. ClaimHour's capture pipeline is organized around deliberate incapability. There is no code path that reads call audio. There is no code path that reads email body text. There is no code path that reads document contents. The absence of those paths is the privacy guarantee. Everything else — the policy language, the data-retention schedule, the SOC 2 roadmap — is secondary.
If you bill hourly and practice solo, you are almost certainly under-recording by 5–10 billable hours a week. At a $250 median hourly rate, that is $60,000–$120,000 of billable work walking out the door each year. After industry-standard realization and collection discounts, the net revenue leak for a typical US solo falls in the $25,000–$50,000 range — about $30,000 is a conservative midpoint. Every existing tool the legal-tech industry sells to plug the leak assumes you have already surrendered to a $39–$159/month practice management system. Roughly 30% of US solos have not, and this post is for them.
Start with the anatomy. The lawyers who under-record do not miss the big things. They do not forget the two-hour deposition, the three-hour hearing, or the whole afternoon with a client. Those make it onto the timesheet. The leak is almost entirely in the small billable moments — the six-minute calls, the eleven-minute emails, the forty-five-minute weekend drafts. Five patterns repeat across almost every solo practice we watch, and they line up neatly with the practitioner complaints that cycle through r/Lawyertalk and r/smalllaw every week.
You leave the courthouse. A client calls during the twenty-minute drive home. You give them six minutes of real legal advice on hands-free. You pull into the driveway, carry the groceries inside, and by the time you reopen your laptop the event is gone. Six minutes × four or five such calls a week × forty-eight weeks is twenty-four hours a year — roughly $6,000 at $250/hr. Gone, because car-ride calls never made it onto any calendar, anywhere.