Buyer Cites Quality to Delay Payment: Independent Inspection — The seller delivered on time, the buyer accepted the goods and put part of them into production, yet at the payment date it cites unmet quality to defer the entire invoice. The seller suspects a cash-flow delay tactic, and the practical question is how to prove conformity through a third party the buyer cannot dismiss.
Legal foundations to grasp first
In a sale of goods, the buyer has the right and duty to inspect goods and may reject non-conforming goods under the Law on Commerce 36/2005/QH11 (Articles 39 to 44 on inspection and rejection), but must notify defects within a reasonable time and still pay for the conforming part. Goods inspection is performed by independent inspection organisations under the commercial inspection mechanism of the Law on Commerce 36/2005/QH11, and the inspection result is important evidence in a dispute. Late payment also triggers late-payment interest under Article 306 of the Law on Commerce 36/2005/QH11 and, where agreed, a penalty capped at 8% under Article 301.
The core distinguishing point
This article handles a buyer using quality as a pretext to defer debt, unlike ordinary debt-collection pieces where the debt is admitted. Here the debt is contested on quality grounds. The focus is the independent inspection process: who appoints the inspector, how sampling must be done for the result to carry evidentiary weight, and the consequences when inspection confirms conformity.
Q&A on real situations
Where and how is independent goods inspection done?
The parties may jointly appoint an independent commercial inspection organisation licensed for goods inspection; failing agreement, the seller may hire one unilaterally but must invite the buyer to witness sampling and sample sealing so the result is hard to challenge. A sound process includes: sampling at the warehouse under the applicable standard’s sampling procedure, sealing, minutes signed with both parties present, testing at an accredited laboratory, and an inspection certificate stating the method and the result against the contract standard.
Who bears the inspection cost?
The working principle: the requesting party pays upfront, and the party that loses on the inspection conclusion bears it finally — if the goods conform, the buyer reimburses the inspection cost together with the invoice; if the goods truly fail, the seller bears the cost and must deal with the defective goods. To avoid a second dispute, both sides should sign a short inspection agreement naming the inspector, the comparison standard, the sampling method and the cost allocation by result before starting.
If inspection confirms conformity, what can the seller claim?
The seller can claim the full outstanding invoice, late-payment interest under Article 306 of the Law on Commerce 36/2005/QH11 from the due date to actual payment, a penalty where the contract has one within the 8% cap of the breached obligation’s value under Article 301, and reimbursement of the inspection cost. If the buyer still refuses, the file of contract, delivery minutes, inspection certificate and demand letters is a strong basis to sue at court or arbitration under the contract’s dispute clause.
What if the buyer used part of the goods before complaining about quality?
Putting goods into production, reselling or using them without reservation significantly weakens a rejection argument, because the Law on Commerce 36/2005/QH11 requires the buyer to inspect and notify defects within a reasonable time, and late notice may forfeit reliance on defects not immediately discoverable. The seller should gather evidence of the buyer’s use — warehouse issue slips, finished output, resale invoices — to prove de facto acceptance of the goods.
Handling direction and immediate tasks
Practical steps: send a demand letter requiring the buyer to specify each alleged quality failure against the contract standard, with a fixed reply deadline; propose a written independent-inspection agreement inside that same letter; if the buyer avoids inspection, document the avoidance as evidence of a delay motive; in parallel, perfect the delivery file and reserve late-payment interest; and when the inspection proposal window lapses unanswered, move to the dispute forum chosen in the contract.
This article has been quality-reviewed by the FLAW AI Legal Council