Geological carbon dioxide removal (CDR), which stores carbon permanently, is necessary to reach durable net zero. However, CDR faces numerous challenges in scaling up, including demand creation, supply promotion, and a need for better regulatory frameworks. This policy brief assesses the most commonly considered policies to support geological CDR, including integration into an emissions trading scheme, tax breaks, voluntary carbon markets, extended producer responsibility, public procurement schemes, advanced market commitments, direct grants, and carbon contracts for difference. The authors examine how each of these instruments performs against the key criteria of effectiveness, efficiency, feasibility, and strategic fit, drawing on established economic principles and emerging best practices.