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Explainer

How Do Law Firms Bill Clients?

Legal billing is a cycle, not a single act. Here is the whole process, step by step, from the fee agreement to collected cash, and the points where it most often slows down or leaks revenue.

The short answer

Law firms bill clients through a multi-step cycle: agreeing on a fee arrangement, capturing time and expenses, generating a draft invoice, reviewing and editing it, delivering it to the client, collecting payment, and reconciling the funds. Each step is a place where billing can slow down or revenue can quietly leak.

Key takeaways
  • Billing starts at the fee agreement, not at the invoice.
  • The prebill review step is where cycles most often stall.
  • Payment and reconciliation, including trust, close the loop.
  • Every step that runs manually adds days between the work and the cash.
The process

The legal billing cycle at a glance

From engagement to collected payment
Engagefee agreementCapturetime & expenseDraftprebillReviewedits & write-downsDeliversend to clientCollectfollow up & get paidReconciletrust & books

The two dark steps, review and collection, are where firms most often lose time.

Step by step

The seven steps, explained

Engagement and fee agreement

The firm and client agree on scope and a billing model: hourly, flat fee, contingency, or retainer. This choice shapes everything that follows.

Capture time and expenses

Timekeepers record billable work and expenses against the right client and matter. Work not captured here is revenue the firm never bills.

Generate the draft invoice

Captured entries are compiled into a prebill, the draft version of the invoice, ready for review.

Review and edit

A partner or billing team reviews the prebill, applies write-downs, and finalizes it. This step is the most common bottleneck in the whole cycle.

Deliver the invoice

The finalized invoice is sent to the client in the format they require.

Collect payment

The firm follows up and collects payment, applying it correctly, including any funds held in trust.

Reconcile

Payments and trust balances are reconciled so the books and client ledgers stay accurate and auditable.

Where it breaks

Why the process is slower than it should be

On paper the cycle is simple. In practice, work goes uncaptured, prebills sit waiting for review, invoices go out late, and follow-up depends on whoever remembers to chase. Each manual handoff adds days, and every delay raises the odds that an invoice ages into revenue the firm never collects. The firms that bill and collect fastest are the ones that compress each step rather than accept the delay as normal.

Where Oddr fits

How Oddr compresses the cycle

Oddr manages the invoice-to-cash cycle on top of a firm's system of record: streamlining invoice preparation and review, making payment easier, and automating prioritized follow-up on unpaid invoices. By tightening the steps that usually stall, review and collection, Oddr shortens the time between finishing the work and banking the payment, without replacing the systems the firm already runs.

FAQ

Legal billing process: common questions

How do law firms bill clients?
Law firms bill clients through a multi-step cycle: agreeing on a fee arrangement, capturing time and expenses, generating a draft invoice, reviewing and editing it, delivering it to the client, collecting payment, and reconciling the funds. Each step is a place where billing can slow down or revenue can leak.
What billing models do law firms use?
The common models are hourly rates, flat fees, contingency fees, and retainers. Many firms use a mix depending on the matter and client. The chosen model shapes how time and expenses are captured and how the invoice is built.
What is a prebill?
A prebill is a draft invoice generated from captured time and expenses that a partner or billing team reviews before the invoice is finalized. It is where write-downs and edits happen, and it is often where billing cycles stall.
How can law firms bill and get paid faster?
Firms speed up billing by capturing time as work happens, shortening prebill review, making invoices easy to pay, and automating follow-up on unpaid invoices. Compressing each step of the cycle is what shortens the time from work to cash.

Bill faster, collect sooner

See how Oddr compresses the legal billing cycle so your firm spends less time chasing and more time paid.

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