This document discusses tax incentives in Spain for research, development, and innovation (R&D&I). It outlines various tax incentives including income tax reductions for R&D&I income through the Patent Box, deductible R&D&I costs, tax credits for R&D and technological innovation costs, and social security contribution allowances for research staff. Requirements and limits for the various incentives are also summarized. The document concludes by mentioning additional tax incentives for investors in new or recently created companies.