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A client pays a legal invoice by credit card and then calls their bank to dispute the charge. The bank opens a chargeback. You receive a notice, a short deadline, and a sinking feeling. This is one of the more disorienting things that can happen on a file, because most lawyers have never dealt with one and the process is not intuitive. Here is what is actually happening and what you should do about it.
What a Chargeback Is and Is Not
A chargeback is a card-network dispute process, not a legal proceeding. When a cardholder contacts their bank and says a charge was unauthorized, fraudulent, or that the service was not delivered, the bank can reverse the transaction on their end and demand a response from the merchant, which in this case is your firm. The process runs on the card network's timeline, not yours, and the deadlines are real. Missing a response window almost always means losing the dispute by default.
A chargeback is not a fee assessment, not a civil claim, and not a law society complaint, though any of those may follow separately. For now, the question in front of you is narrow: can you document, to the card processor's standard, that you provided the services billed and that the client authorized the charge.
Note. Law societies generally require that legal fees be deposited to general account, not trust. A chargeback on a general account payment does not directly affect your trust account, but if the client has funds in trust you should not disburse them unilaterally while the dispute is active. If you are uncertain, consult your law society's trust guidelines or the practice management advice line before moving money.
Why Legal Fee Chargebacks Are Different From Retail Disputes
Retail chargebacks usually turn on whether a product arrived. Legal fee chargebacks often turn on something harder to show: whether the services were actually rendered to the client's benefit and whether the client understood what they were paying for. A client who feels they lost and got a large bill is a client who may rationalize the chargeback as a legitimate remedy, even when it is not. The card processor does not know the difference between buyer's remorse and genuine non-delivery, so your documentation has to do that work.
The card networks that most commonly handle chargebacks (Visa, Mastercard, Interac) each have their own reason codes and evidence requirements. Your payment processor's chargeback team will tell you which code applies and what category of evidence they need. Read that guidance carefully before you respond.
Responding to a Legal Fee Chargeback
- Receive and read the noticeNote the response deadline. It is typically 7 to 20 calendar days. Contact your payment processor immediately to confirm what evidence format they require.
- Gather your documentationPull the retainer agreement, invoices, time entries, email correspondence confirming instructions, and any record of the client acknowledging the fees.
- Write your rebuttalDraft a clear, factual summary of services rendered. Attach all supporting documents. Do not editorialize or argue the merits of the case outcome.
- Submit before the deadlineSubmit through your processor's portal or as directed. Keep a timestamped copy of everything you submit.
- Decide on further stepsIf you win, the charge is reinstated. If you lose, consider whether small claims or a fee assessment is proportionate to the amount. Separately, consider whether a law society complaint may follow.
Building Your Evidence Package
The strongest chargeback response for a legal fee dispute contains four things. First, a signed retainer or engagement agreement that shows the client agreed to pay for services on the terms you provided. Second, invoices with itemized time entries showing what work was done, when, and by whom. This is one of several reasons why clear invoice narratives are not just a client-service courtesy: they are a litigation document. Vague block billing is nearly impossible to defend in a dispute because it proves nothing specific.
Third, correspondence showing the client received and acknowledged the bills. An email from the client referencing the invoice, a payment confirmation from a prior payment, or a message asking a question about a specific line item all show engagement with the billing. Fourth, any communication where the client confirmed they were satisfied with services or made partial payment. Partial payment is strong evidence that services were delivered, because people do not partially pay for things they claim they never received.
Tip. If your retainer agreement includes a clause confirming that the client understands fees are non-refundable absent professional misconduct, include that clause in your response. It does not guarantee a win, but it gives the card processor clear contractual context. Consider adding such a clause if you do not have one. See fee agreements that prevent disputes for what else belongs in that document.
When the Chargeback Is Genuinely Disputed
Sometimes a chargeback is an honest mistake. A client's spouse sees an unfamiliar charge and disputes it before the cardholder gets home. Or the client genuinely believes services were not delivered due to a miscommunication. In these cases, a phone call often resolves it faster than the formal dispute process. If you can get the client to contact their bank and withdraw the chargeback, the processor can close the dispute without a decision. That is a better outcome than a win on the merits, because it leaves the relationship intact and avoids having a dispute on your merchant history.
If the client is using the chargeback as leverage in a larger disagreement about the bill, that is a different situation. Respond to the chargeback on its own terms and address the underlying fee dispute separately through the appropriate channel, whether that is a direct conversation, a fee assessment, or, if the situation warrants, a law society complaint response. Do not conflate the two processes in your written response to the processor.
Preventing the Next One
The most effective response to chargebacks is not a better response template, it is a billing practice that leaves no room for a client to claim they did not know what they were paying for. That means signed engagement letters before work begins, regular billing rather than large surprise invoices at the end of a matter, and clear itemized entries that describe actual work in plain language.
It also means having a conversation with a client the moment you sense dissatisfaction with a bill, before they reach the point of calling their bank. Most chargebacks on legal fees are not fraud. They are frustration that found a form to fill out. Getting to that conversation early, and handling it the way this post on handling a fee dispute calmly describes, is almost always cheaper and faster than fighting the chargeback afterward.
Regular month-end billing discipline also keeps invoices from piling up into amounts large enough to shock a client into disputing them. Smaller, more frequent invoices are easier to question in real time and easier for clients to absorb. Keep good records, bill clearly, and stay current on billing and trust best practices. That combination does more to prevent chargebacks than any recovery strategy. If you want a practice management system that records payment method and generates itemized invoices you can defend, see A1 CMS pricing.
