Why your law firm billed $340,000 and collected $218,000

A managing partner at a litigation boutique we work with compared two numbers in April. Her billing system showed $340,000 invoiced in the first quarter. QuickBooks showed $218,000 in collected revenue. She called us certain one of them was wrong.

Neither was wrong. The $122,000 gap was real, and it came from two separate places she had never tracked separately before.

Where the revenue gap comes from

Most law firms track billable hours. Few separate the two gaps between those hours and the cash that arrives in the bank.

The first is the realization gap: the difference between the standard value of work performed and the amount actually invoiced. Every write-down a partner makes before sending an invoice contributes to this gap.

The second is the collection gap: the difference between what was invoiced and what was received. Every invoice that ages past 90 days without payment, and every balance forgiven after the fact, widens this second gap.

A firm that monitors only the cash deposited each month cannot tell which gap is growing or where to focus attention.

What creates each gap

Partner write-downs before billing. Most law firm invoices are drafted, reviewed by a partner, and adjusted before they go out. A matter that took 14 hours gets billed at 10 because the client had a fixed budget expectation. An associate’s time is reduced because the partner considers part of it overhead, not billable work. These reductions happen invoice by invoice. The problem is when they are never tracked as an explicit metric and no one reviews whether the pattern is improving or worsening.

Unbilled work in progress. Time entered in the billing system that has not been converted to an invoice is work in progress, or WIP. When a long-running matter closes, the partner reviews accumulated WIP and decides what to bill. If the matter ran significantly over estimate, a large portion may be written off in a single adjustment. A monthly WIP review prevents that adjustment from compounding silently across multiple matters.

Aged receivables that are unlikely to pay. Money clients owe the firm is listed as a receivable on the books whether it is 30 days old or 150. Collection probability drops past the 90-day mark. Firms that do not age their receivables have no early signal that a balance is becoming unrecoverable, and they carry inflated receivable totals that do not reflect what will actually come in.

Courtesy adjustments after billing. A client disputes a charge and receives a credit. A matter that ended badly gets a post-invoice discount to preserve the relationship. These adjustments reduce collected revenue without changing the invoiced total. The result is a gap between billed and collected that the billing system does not explain.

What the Q1 numbers actually showed

Here is how one quarter broke down at the 4-attorney litigation boutique.

The $57,000 in write-downs before billing was a billing process issue. The $122,000 gap between billed and collected was partly a timing issue ($63,000 still within a normal payment window) and partly a collection problem ($59,000 in aged receivables with uncertain recovery).

Why the distinction matters

A firm that monitors only the cash deposited number will see $218,000 and conclude it has a revenue problem. It has two.

An 86 percent realization rate is below the 90 to 95 percent range most well-run firms maintain. That shortfall points to billing practices: whether write-downs are being reviewed, whether WIP is converting to invoices on a regular schedule, and whether standard rates reflect what partners are actually willing to bill.

A 64 percent collection rate for the period is significantly below a reasonable standard. Even accounting for invoices still within a normal payment window, the firm had $59,000 aging past 60 days and no formal follow-up process in place.

Billed revenue and collected revenue are not the same number. Treating them as one means a firm can work a full quarter without understanding where the revenue is going.

What good billing and collection tracking looks like

For law firm clients we work with, the books distinguish between three things: standard fees, write-downs before billing, and actual collections.

The Profit and Loss report (P&L) shows collected revenue. A separate billing summary tracks standard fees, write-downs, and the invoiced amount by timekeeper and matter. A receivables aging report breaks every outstanding invoice into 0 to 30, 31 to 60, 61 to 90, and over 90 days.

With those three reports, a managing partner can tell whether a revenue shortfall is a billing problem, a collection problem, or both. The setup takes a few hours. The reports run in minutes each month.

We also set up per-timekeeper realization summaries so partners can see at a glance whether write-down patterns are concentrated in specific individuals or spread across all matters.

Practices that keep both rates accurate

A few specific practices that prevent either gap from widening without notice:

• Enter write-downs as explicit adjustments in the billing system, not as deleted hours on the draft invoice. A write-down that is visible can be reviewed and discussed. One that is invisible cannot.
• Set a fixed date each month to review the receivables aging report. Any invoice 60 days past due gets a direct follow-up in the first week of the following month.
• Review WIP aging at the start of each month. Any matter with unbilled WIP over 45 days should have a billing plan and a target date.
• Record post-billing write-offs in a separate account rather than as a reduction of current revenue. This keeps period-over-period comparisons accurate and makes write-off patterns visible.
• Calculate both rates separately each quarter. A realization rate that is sliding points to billing practices. A collection rate that is sliding points to payment behavior. The two require different conversations.

Three questions worth asking

1. What is the firm’s realization rate this quarter, calculated as billed fees divided by standard fees, and how does it break down by timekeeper?
2. What percentage of invoiced amounts are outstanding past 60 days, and does each balance have a documented follow-up plan?
3. Which matters have unbilled WIP older than 45 days, and when is the next billing date on each?

Take a closer look

If the gap between your billing system and your bank account has been unclear, send us a recent receivables aging report along with one month of QuickBooks data. We will identify where the realization and collection gaps are and walk you through what the numbers are actually saying.