The article analyzes the buyer's right to withhold payment of the price in case of delivery of non-conforming goods under the Vienna Convention on Contracts for the International Sale of Goods (CISG). The author compares this issue with Polish civil law regulations, highlighting differences and similarities, especially regarding the legal nature of the buyer's rights (constitutive or claim-based). The conditions for applying Article 46(2) and (3) of the CISG, concerning the right to demand substitute delivery or repair of goods, are discussed in detail. The possibility of deriving the right to withhold payment from other provisions of the Convention, including Article 58(3) (right to examine the goods), Article 71 (anticipatory breach), and Article 80 (creditor's act causing non-performance by the debtor), is also examined. The article concludes that although the Convention does not explicitly regulate the general right to withhold payment for defective goods, it can be derived by analogy or from general principles, such as the principle of simultaneous performance, supported by case law, e.g., the Austrian Supreme Court.