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Every firm has that file. The work was good, the client was grateful, and the invoice is now ninety days old and still open. You do not want to nag a client you like. You also do not want to teach them that your bills are optional. There is a way through that recovers the money and keeps the door open, and it is not luck. It is a sequence.
The instinct most lawyers have is to wait. Wait a little longer, give it another week, avoid the awkward call. That instinct is exactly backwards. Collection requires a system that runs whether or not you feel like running it that day.
Why Old Invoices Get Harder to Collect Each Week
An unpaid invoice becomes harder to collect every week. The day you send it, the work is fresh in the client's mind, the outcome still feels valuable, and the connection between what you did and what they owe is obvious. Thirty days later that connection has faded. Ninety days later the client half-remembers the file, has spent the money on something else, and has quietly treated your bill as a problem for later.
The numbers back up the instinct. A receivable that is current is worth close to its face value. A receivable that has aged past four or five months is worth a fraction of it, because collectability falls as memory fades and the client's own cash gets committed elsewhere. This is why the gap between what you bill and what you bank matters so much, a topic worth its own sit-down in realization versus collection.
Note. Aging is not a moral failing on the client's part. Most late payers are not deadbeats. They are busy, distracted, or waiting for their own money. Treat them that way and your recovery rate goes up.
The Friendly First Nudge That Works
Your first contact after an invoice goes past due should be so light it barely registers as a demand. Assume the best. The email got buried, the bookkeeper is on vacation, the client meant to pay and forgot. Give them an easy exit.
Something like this does the job:
Hi Sarah, just floating this back to the top of your inbox. Invoice 1042 from August is showing as outstanding on our end. If it has already gone out, ignore me and thank you. If not, the link to pay is below. Happy to resend a copy in any format that is easier for your records.
Notice what that message does. It names the specific invoice. It gives a way to pay in the same breath. And it hands the client a graceful excuse rather than an accusation. You are not asking why they have not paid. You are making paying the path of least resistance.
Timing matters as much as tone. A good first nudge lands within a week of the due date, not a month after. If you are only discovering aged invoices when you finally look, the fix is upstream: a standing routine so nothing gets old without you noticing. A tight month-end billing routine and a habit of actually reading the WIP report and acting on it keep the whole thing from piling up in the first place.
Offering a Payment Plan Before They Ask
Here is the move most firms miss. When a balance ages and the client goes quiet, the reason is often simple: they cannot pay it all at once and they are embarrassed to say so. Silence is not defiance. It is avoidance. So you make the first move and take the shame out of it.
Reach out and offer the plan before they have to ask for one. Three payments over three months turns an impossible number into a manageable one, and it turns a client who was dodging your emails into a client who is relieved to hear from you.
Tip. Put payment-plan terms in writing, even a two-line email. State the amounts, the dates, and what happens if a payment is missed. A written plan protects both sides and gives you a clean record if the arrangement falls apart later.
Two things to watch. First, get the plan documented and dated, so there is no fuzziness about who agreed to what. Second, tie it to your intake habits going forward. Clients who needed a plan on this file are telling you something useful about the next one, which is a good reason to revisit your deposit and evergreen retainer policies so future work is funded before it is done, not chased after.
The Firm but Respectful Escalation
Some balances survive the nudge and the plan. When they do, the tone shifts, but it never becomes hostile. Escalation is a change in clarity, not a change in temperature.
Move from email to a phone call. A real voice does more than three reminders ever will, because it forces a decision the client has been avoiding on paper. Keep it direct and human: "I wanted to talk through the outstanding balance and figure out a way to close it out that works for you." You are still on their side. You are just no longer willing to let the file drift.
If the balance is large or the silence is total, put your position in a formal letter with a specific date attached. Name the amount, name the deadline, and state plainly what comes next if it passes. Say it once, in writing, and mean it. Empty threats train clients to ignore you.
A collection process that clients respect is one that is consistent and on schedule, not one that escalates unpredictably.
Two cautions before you escalate hard. If the client is quiet because they are unhappy with the bill rather than unable to pay it, that is a different conversation, and it belongs in the register of handling a fee dispute calmly rather than the collection track. Sending a demand letter to a client with a genuine grievance turns a fixable problem into a law society complaint. Second, before you ever consider outside counsel or a lawsuit for fees, weigh the relationship and the reputational cost against the sum at stake. Suing a former client is a decision with a long tail.
Knowing When to Write It Off
Not every dollar comes back, and chasing the last stubborn balance can cost you more in time and goodwill than the balance is worth. Knowing when to stop is part of the craft.
Write it off when the math says so. If recovering the money would take hours of your time, damage a referral source, or drag you into litigation over a modest sum, the commercial answer is to close the file and move on. A clean write-off, recorded properly, is a business decision, not a defeat. Keeping a dead receivable on the books for a year just so you do not have to admit it is dead helps no one, and it distorts every report you rely on.
| Stage | When | Tone |
|---|---|---|
| Friendly nudge | Within a week of due date | Light, assume the best |
| Follow-up plus plan | Around 30 days past due | Helpful, offer options |
| Phone call | Around 60 days past due | Direct, still on their side |
| Formal letter | Around 90 days past due | Firm, specific, dated |
| Write off or refer | When the math stops working | Decisive, unemotional |
Collection and client relationships are not opposites. The firms that recover the most are usually the ones clients speak well of afterward, because their process felt fair at every step. A consistent sequence, sent on time and tracked properly, gives a late payer a clear path to resolving the balance. Good billing software makes that sequence run without you having to remember each step manually, which is most of what tools like A1 CMS are for. If you want the wider view, the billing and trust archive and my other posts cover the ground this one leaves aside. Build the system once and follow it.
