This document provides a summary of Spain's progress in implementing recommendations from GRECO (the Group of States Against Corruption) regarding transparency of political party funding and incriminations related to corruption. It finds that Spain has partly implemented recommendations regarding clarifying definitions related to foreign officials, criminalizing certain acts of bribery and trading of influence, and increasing transparency of political party loans. However, more work remains to fully implement recommendations regarding criminalizing bribery of foreign arbitrators and jurors and increasing sanctions and publicity requirements related to political party financing. The document was adopted by GRECO to assess Spain's implementation efforts.