Recovering an unpaid business invoice

An unpaid invoice should be checked against the contract and delivery evidence before escalation. The Small Business Commissioner's guidance starts with payment terms and invoice accuracy, which can distinguish a processing problem from a genuine dispute. ^[1]

Establish what became payable

Collect the order, agreed terms, invoice, delivery or completion record and any acceptance correspondence. Reconcile part-payments, credits and disputed items. Confirm the due date under the applicable arrangement rather than assuming the invoice's printed date overrides the contract.

Ask the customer to identify the reason for non-payment. Keep a record of promised payment dates and the person making the commitment.

Choose the next step proportionately

Assess the amount, dispute, relationship and likely recoverability. A formal pre-action letter, negotiated instalments or another complaint route may be appropriate depending on the facts. If court action is considered, confirm the correct jurisdiction and procedure first.

Debtor identification prevents a demand being aimed at the wrong entity. Late-payment interest should be calculated on a valid basis, separately from the principal debt. Keep each escalation tied to the actual account so charges and threats do not outrun the evidence.

Trace the invoice through the customer's payment system An invoice can reach the person who commissioned work without reaching the team that releases payment. Establish where it was sent, whether an automated portal accepted it and whether the customer assigned a query reference. Save rejection notices rather than repeatedly uploading the same document. A missing purchase order reference might explain an administrative hold, but its legal significance depends on what was agreed. Ask the customer to distinguish information needed for processing from a claim that the work was never authorised.

Build a short account history using events that actually changed the balance or payment position. Record the original invoice number, delivery date, contractual payment trigger, credit notes and money received. If a corrected invoice is requested, preserve the earlier version and explain what changed. Otherwise two versions can appear to demand payment twice or suggest different due dates. Before altering a date to satisfy an accounts system, establish whether the change could confuse the contractual history or an eventual interest calculation.

Separate unfinished work from an accounts query A customer saying that a project is incomplete needs a different response from a customer saying that the invoice cannot be located. Ask which deliverable is missing, who was responsible and what contractual milestone remains outstanding. For a design project, the relevant record might be approval of a final file; for a delivery, it might be a signed receipt with a shortage annotation. Avoid relying entirely on an internal timesheet when the disputed payment obligation depends on an external acceptance event.

Where only one element is challenged, prepare a breakdown that allows the parties to discuss it without losing sight of the rest. Show the agreed price for each stage if the contract provides one; do not invent a retrospective allocation simply to make a larger amount appear undisputed. Keep remedial offers and actual credits distinguishable. Offering to investigate a complaint does not tell the accounts team how much to pay, so ask for a clear written explanation of the customer's present position.

Turn a payment promise into usable information A promise that the invoice is on the next payment run is useful only if someone can identify the run and confirm that approval is complete. Record the promised date, contact's role and any stated condition. Check the account after that date before sending another demand. If payment has allegedly been made, request a remittance reference and amount through an established contact channel. Match it to cleared receipts, allowing for payments covering several invoices or money allocated against an older account item.

Choose one person to coordinate the recovery record. Sales staff may be negotiating a concession while finance continues to chase the original total, producing contradictory messages that damage trust and evidence. A shared note should identify the current balance, unresolved question and next review date. It should also show any commitment to pause escalation. The Small Business Commissioner's guidance supports checking the invoice and communicating with the customer before considering stronger recovery measures; the appropriate route depends on the circumstances. ^[1]

Decide what further effort is justified Consider the likely benefit of each next action in practical terms. Obtaining a missing delivery receipt may resolve a factual objection at little cost. Paying for a legal letter may help where the parties disagree about the contract. Repeating telephone calls may add little when the customer has closed its office and returned post is accumulating. Compare the outstanding sum with likely expense and the evidence of recoverability, keeping conjecture about the customer's finances separate from verified information received during the relationship.

Before transferring the file to an adviser or recovery provider, reconcile the balance once more and remove obsolete drafts from the working pack. Include a summary of the customer's explanation, even where you disagree with it, alongside the documents supporting your own position. State the commercial objective: full payment, a workable arrangement or resolution of a particular deduction. This gives the next person a specific problem to address and reduces the chance of an inaccurate demand undermining an otherwise supportable account.