Everhour tracks approved legal work by task and matter, while small firms still need precise billing increments and rate setup.
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For a small law firm, the calculation answers how much approved matter work is worth before payment, collection, or write-offs. A typical small firm has 2 to 4 legal professionals, so one invoice often combines partner, associate, and paralegal work under different hourly rates. The core output is the billable amount in USD: rounded billable hours multiplied by the applicable rate for each person or role.
The result matters when you prepare a draft invoice, test whether a retainer covers the work, compare actual work against a flat-fee quote, or review realization. Hourly billing is common, but it is not universal. Small firms also use flat fees, contingency fees, and retainer arrangements, so the calculation should match the client engagement and the written basis or rate of fees.
Legal time is commonly converted to 0.1-hour, six-minute increments. Under that convention, 1 to 6 minutes becomes 0.1 hour, 7 to 12 minutes becomes 0.2 hour, and the pattern continues through 55 to 60 minutes as 1.0 hour. The practical rule is simple: convert each time entry to the firm's billing increment before multiplying by the rate, not after adding raw minutes.
For example, a small litigation matter includes 9 approved partner hours at $410 per hour, 22 approved associate hours at $240 per hour, and 11 approved paralegal hours at $135 per hour. The pre-tax billable value is $10,455.00. If the firm writes down the matter to 86% realization, the invoiced amount becomes $8,991.30 before any applicable state or local tax treatment.
Small-firm billing pressure usually comes from leakage, not the multiplication itself. Solo and small firms averaged 86% realization in Clio's 2024 data, meaning 14% of billable work was not invoiced to clients. Collection was 90%, meaning 10% of invoiced amounts were not collected. A matter can look profitable at the time-entry stage and still underperform after write-downs and unpaid invoices.
Utilization is the other decision point. Clio's 2025 benchmark reports average law-firm utilization at 38% of an eight-hour day, equal to 3.0 billable hours per day. Yale Law School reports stated law-firm billable-hour averages, targets, or minimums commonly range from 1,700 to 2,300 hours per year, with smaller firms often requiring fewer hours than large firms. Use targets as capacity checks, not invoice amounts.
A one-off calculation is enough when you have a clean matter total, approved hours, current rates, and a clear fee arrangement. It is also enough for a quick retainer coverage check or a draft invoice review. Add a jurisdiction-specific tax input only when the service is taxable, because the United States has no federal VAT/GST or national sales-tax rate for billed professional time.
A managed workflow is better once several people touch the same matter, rates change by role, or entries need approval before billing. Everhour Time Tracking captures task and project hours through timers or manual entries, then feeds timesheets, reports, budgets, invoices, and payroll review. Admin controls such as approvals, locked periods, reminders, and timer rules make the billing record easier to defend.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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Small firms commonly use 0.1-hour billing increments, where each tenth equals six minutes. Convert each entry according to the firm's billing policy, then multiply the converted hours by the correct hourly rate. Do not total raw minutes across a matter and round only once unless the engagement agreement or firm policy explicitly uses that method.
Calculate by person or role first when the matter uses different partner, associate, and paralegal rates. Multiply each person's approved billable hours by that person's rate, then add the line totals for the matter. A matter-level total is useful for invoicing, but person-level math shows where the value was created and where write-downs occurred.
Realization reduces billable value to the amount actually invoiced after write-downs or excluded time. Collection reduces invoiced value to the amount actually paid. For example, a $10,000 draft invoice at 86% realization becomes $8,600 invoiced. At 90% collection, collected revenue is $7,740. Those percentages measure different losses and should not be treated as the same adjustment.
No. The United States has no federal VAT/GST or national sales-tax rate for billed professional time. Tax treatment is state and local, and services may be taxable or not taxable depending on the jurisdiction and service category. Use a jurisdiction-specific tax input only after confirming that the legal service is taxable under the applicable state or local rule.
Check that the scope of representation and the basis or rate of fees and expenses match the client file. For U.S. lawyers, ABA Model Rule 1.5 requires that information to be communicated in writing for new client-lawyer relationships, subject to the rule's limited low-cost exception. The calculator should follow the written rate structure, not a default firm rate.
Everhour Time Tracking lets legal teams record matter and task hours through live timers or manual entries, then route those entries into timesheets, reports, budgets, invoices, and payroll review. Admins can approve timesheets, lock completed periods, send reminders, and configure timer rules before hours become billing source data.
Everhour supports billable and non-billable time through project billing status, task-level non-billable controls, custom task rates, and member-rate exceptions. Reports can show billable time, non-billable time, billable amount, and cost, so a small firm can separate client-chargeable work from internal administration.
Track matter time with approvals, locked periods, and billing-ready records. Everhour turns approved legal hours into cleaner timesheets, reports, budgets, and invoices.
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