An invoice dispute arises when a customer refuses to pay — or pays only part of an invoice — on the basis that the amount is incorrect, the goods or services were not delivered as agreed, or there is some other basis for a deduction. Most invoice disputes can be resolved without litigation if approached systematically. The key is to treat the dispute as a process to be managed, not a problem to be avoided or immediately escalated.
Step 1: Acknowledge the dispute formally
When a customer raises a dispute, acknowledge it in writing within 24–48 hours. Your acknowledgment should: confirm that you have received their dispute; state that you will respond by a specific date; and — critically — state that the undisputed portion of the invoice is due and payable on the original terms. Acknowledging a dispute does not mean accepting it. It means beginning the resolution process in a structured way.
Step 2: Identify the specific basis of the dispute
Ask the customer to put their dispute in writing if they have not already done so, specifying: what they are disputing (the quantity, the price, the quality, the scope); what they believe the correct amount is; and what evidence they are relying on. A customer who cannot or will not articulate a specific basis for the dispute is likely raising a general objection to payment rather than a genuine dispute. The inability to specify the dispute is itself relevant to how you respond.
Step 3: Review your documentation
Before responding to the substance of the dispute, gather your documentation: the purchase order or contract specifying the scope and price, the delivery docket or proof of delivery, correspondence relating to the work or delivery, and any communications about price. Your response will be only as strong as your documentation.
Step 4: Respond to the dispute on the merits
Provide a written response addressing each specific ground of the dispute. Where your documentation supports your position, refer to it explicitly. Where there is a genuine difference of opinion or evidence on a specific point, acknowledge it and propose a resolution — a partial credit, a replacement delivery, a service rectification — that is proportionate to the issue.
Do not respond defensively or angrily. A dispute response that is measured, factual, and supported by documentation is more likely to result in payment than one that treats the dispute as a personal attack.
Step 5: Make a commercial resolution offer
If the dispute has some merit — or if the cost of litigating it exceeds the value of the disputed amount — consider making a commercial resolution offer. A credit for a specified amount, applied against the invoice, in full and final settlement of the dispute, eliminates the risk and cost of continued dispute. This is not weakness; it is commercial judgment.
Step 6: Escalate if resolution fails
If the dispute is not resolved after good faith efforts, two options are available: mediation (for significant amounts) or proceedings. For amounts below $20,000, a tribunal claim is usually faster and cheaper than the District or Magistrates Court. For larger amounts, legal advice on the strength of your position is worthwhile before committing to proceedings.
Contact Merion if you have a disputed invoice that has not been resolved through direct negotiation.