Time Tracking for Family Law Attorneys: Retainers, Hybrid Matters, and the Hours in Between

It’s 9:12 p.m. on a Thursday. A client calls because the other parent didn’t show for the custody exchange, and she wants to know what she can do tonight. The attorney talks her through it: document the missed exchange, don’t escalate, here’s what the temporary orders say. Fourteen minutes. The call ends, the attorney exhales, and nothing gets written down. By Monday, it’s a vague memory of “a call last week.”

That call is the whole problem with time tracking for family law attorneys in miniature. The work was real, the client needed it, and the firm will probably never bill for it. Multiply it by every short check-in, late text, and “quick question” across a caseload, and the hours in between add up to real money the practice earned and never billed.

Why time tracking for family law attorneys is its own problem

Family law clients are often going through the worst year of their lives, and they call accordingly: often, after hours, and with questions that can’t wait. Many of those calls are short. Short calls are the ones most likely to become time that never gets entered, because each one feels too small to stop and record.

Three features of the practice raise the stakes:

• Family law work is billed by the hour or by flat fee. ABA Model Rule 1.5(d)(1) prohibits a fee in a domestic relations matter that is contingent on securing a divorce or on the amount of alimony, support, or a property settlement. (States adopt their own versions, so check yours.) That puts the full weight of the firm’s revenue on recorded time and well-scoped flat fees.
• Retainers sit in trust and drain as work is billed. If entries lag, the trust balance and the work actually done drift apart.
• Clients scrutinize every line. A client paying for their own divorce, often while splitting a household, reads the invoice closely. “Phone call, 0.3” with no context is an invitation to dispute.

Capture the hours in between with contemporaneous entries

The fix that matters most is timing. A contemporaneous entry, recorded at or near the time the work happens, is more complete than one reconstructed at the end of the week, because the details are still in front of you.

For family law, that means making the end of a call the trigger for the entry, including the 9 p.m. call. A short entry made in the moment beats a careful one that never gets made.

What the entry says matters as much as when it’s made. Compare:

• “Call with client. 0.3.”
• “Phone call with client re: missed custody exchange; advised on documenting the missed exchange and next steps under temporary orders. 0.3.”

The second narrative tells the client what they paid for, ties the work to an issue they care about, and gives the billing partner something to stand behind if the line is questioned.

Retainers drain faster than clients expect

Clients know they paid a retainer. What they often don’t expect is how quickly it goes once a matter turns contested: a few rounds of discovery, a temporary orders hearing, and a run of late-night calls can consume it faster than they planned.

An evergreen retainer, where the client agrees to keep a minimum balance in trust and replenish it when it falls below that floor, keeps the firm from working on credit. Our post on why the evergreen retainer matters so much for divorce attorneys covers how to set one up.

But an evergreen retainer is only as reliable as the time entries behind it. If a week of work hasn’t been entered, the trust balance looks healthier than it is, the replenishment request goes out late, and the firm learns it’s been working unsecured only after the balance is already gone. Same-day entries keep the earned amount and the trust balance in step, so the replenishment request goes out while the client still has a balance to replenish.

The trust side has its own rules: retainers are client money until earned, and costs like filing fees paid from trust need that client’s funds there. Our guide to trust accounting for family law attorneys walks through retainer fees and filing costs. LeanLaw keeps a trust sub-ledger for each client and lets the firm pay an invoice from the client’s trust funds, and you can see how LeanLaw handles trust accounting in more detail.

Hybrid matters: flat-fee pieces and hourly pieces

Many family law matters don’t fit one billing model. An uncontested divorce or an agreed modification may be priced as a flat fee; the moment custody becomes contested, the work moves to hourly. Billing both correctly takes three habits.

Define the boundary in writing. The engagement letter should say what the flat fee covers, what triggers hourly billing, and when the change takes effect. Model Rule 1.5(b) says changes in the basis or rate of the fee or expenses must be communicated to the client.

Track time on the flat-fee work anyway. The client won’t see hours on a flat-fee invoice, but the firm needs them. Without recorded time, there’s no way to know whether the flat fee covered the effort, and no basis for repricing the next one. Our guide to family law billing rates covers how to set both.

Keep the two portions separate on the invoice. A client who sees a flat fee and hourly entries mixed together will assume they’re paying twice. Separate matters or clearly labeled phases make the transition legible.

LeanLaw supports hourly, flat fee, and contingency operating models in one platform, built on QuickBooks Online as the financial source of truth (QuickBooks Online is required), so a firm can bill a hybrid matter without running two systems. You can see how LeanLaw handles time and expenses on the hub page.

Clients who read every line

The goal of a family law invoice is that the client understands it without calling. That depends on narratives, and on context: what was billed, what was paid, and what remains in trust.

Walters Gilbreath, PLLC, a 23-lawyer family law litigation firm, built its invoices around that idea. Before the change, roughly 10–15% of the 300–350 invoices it sent each cycle drew a client question. After it began putting an account summary in the body of each invoice email, client inquiries about invoices fell to virtually zero. Each question that never gets asked is time nobody at the firm spends explaining an invoice.

What this does to realization and collection rate

For the managing partner, the hours in between show up in two numbers.

Realization, the share of the work a firm performs that survives to an invoice, takes the first hit. The 9 p.m. call that never gets entered can’t be billed, and an entry that reads “Call with client” is the first line written off when a client pushes back.

Collection rate takes the second. Clients pay invoices they understand and dispute the ones they don’t, and an evergreen retainer replenished on time means more of the work is paid from trust instead of chased afterward.

The habits are unglamorous: entering time the same day, writing narratives a stressed client can follow, and keeping the trust balance current enough to ask for replenishment before it runs out.