In 2026, Spain's affiliate marketing ROI has reached approximately 12.5%, reflecting increased efficiency and strategic growth in digital channels. The sector has attracted around 1.2 million active marketers, indicating a mature and expanding industry. Revenue from affiliate marketing has surpassed €3.8 billion, demonstrating its significant role in the overall digital economy and shifting advertising spend towards performance-driven models.
The majority of digital advertising budgets—about 18%—are now dedicated to affiliate marketing, emphasizing its importance for brands seeking measurable results. Key sectors such as retail, travel, and finance dominate the industry, benefiting from Spain's growing e-commerce landscape. Overall, Spain's digital maturity and consumer engagement continue to propel affiliate marketing as a vital channel for businesses in 2026.