This study examines the impact of domestic outsourcing on the wages of workers performing outsourced tasks in Türkiye, using an administrative employee-employer linked dataset. Outsourcing events are identified by tracking worker flows across firms with specific properties. Unlike existing studies, our dataset incorporates buyer-supplier transactions, enabling us to confirm that a relationship between the predecessor and successor firm begins following the outsourcing event. This improves our ability to identify outsourcing events, which we use to explore wage effects of both high-skilled and low-skilled outsourcing. Our findings indicate that low-skilled workers experience wage losses from domestic outsourcing, while high-skilled, professional workers benefit, suggesting that domestic outsourcing may be one of the factors contributing to rising wage inequality.