Indonesia’s Green Sukuk Program: Mobilizing Private Capital for Climate Finance

Indonesia has developed one of the world’s leading sovereign green sukuk programs, using Islamic finance instruments to mobilize private capital for climate-related investments. Since its launch in 2018, the program has raised approximately $9.6 billion across multiple issuances, positioning Indonesia as a leading sovereign issuer in this market.

The Challenge

Mobilizing large-scale private investment for climate action remains a key challenge for emerging markets. Global climate finance needs far exceed current flows, with particularly large gaps in emerging economies.

In Indonesia, financing climate priorities required an instrument capable of attracting both conventional and Islamic investors, while ensuring credibility and scalability across sectors.

Strategic Approach

To address these challenges, the Government of Indonesia introduced sovereign green sukuk, combining Islamic finance principles with green bond frameworks to access a wider pool of private capital.

The program is aligned with international standards, including the Green Bond Principles, and supported by a structured framework covering project eligibility, allocation, and reporting. Proceeds are directed to climate-related sectors such as renewable energy, transport, and waste management.

A central feature of the approach is the integration of Climate Budget Tagging (CBT), standardized reporting, and verification mechanisms. Under this system, ministries identify and tag climate-related expenditures within the national budget, which form the pool of eligible projects financed through green sukuk. These expenditures are consolidated and reviewed across institutions to ensure consistency and support allocation tracking and reporting to investors. Annual reports disclose allocation and impact data using standardized indicators, supported by independent verification processes.

Together, these mechanisms ensure traceability of funds, improve data consistency, and reduce greenwashing risks. By combining structured tracking, transparent reporting, and verification, the framework reduces information gaps and strengthens credibility for investors.

Outcome and Impact

Indonesia’s green sukuk program has attracted a diverse global investor base. In the inaugural 2018 issuance, approximately 32% of investors were from Islamic institutions, with the remainder distributed across Asia (25%), the United States (18%), and Europe (15%). Issuances have been consistently oversubscribed, in some cases by up to four times, indicating strong demand for credible sustainable investment products. This demand reflects a combination of factors, including growing investor appetite for ESG-aligned assets, access to both Islamic and conventional investor pools, and strong sovereign fundamentals. The credibility of the framework, supported by transparent reporting and verification mechanisms, further strengthens investor confidence. The program has also expanded access to domestic capital through the issuance of retail green sukuk, enabling broad participation by individual investors.

Green sukuk proceeds have financed projects that contributed to tens of millions of tons of CO₂ emissions reductions and supported investments across renewable energy, sustainable transport, and waste management. Together, these developments show how well-structured sovereign instruments can broaden the investor base while delivering measurable environmental outcomes.

Lessons Learned

Indonesia’s experience shows that sovereign issuers can play a catalytic role in mobilizing private capital by developing instruments aligned with investor expectations and market standards.

The case highlights the importance of institutionalizing integrated tracking, reporting, and verification systems to ensure credibility, reduce information asymmetry, and support investor confidence.

Combining innovative financial instruments with robust governance frameworks is critical for attracting diverse investor groups. Integrating Islamic finance principles with green finance standards can further expand access to new pools of capital.

Indonesia’s green sukuk program offers a replicable model for countries seeking to develop capital market instruments that mobilize private investment for sustainable development.

Key links/documents

1. Ministry of Finance of Indonesia. 2025. Green Sukuk Allocation and Impact Report.
2. Republic of Indonesia. Green Bond and Green Sukuk Framework.
3. UNDP. Indonesia’s Green Sukuk Initiative.
4. Latif, Adam and Husodo, Zaäfri A. and Hendranastiti, Nur Dhani, Green Sukuk and Climate Finance: Evidence from Indonesia (February 01, 2026). Available at SSRN: https://ssrn.com/abstract=6169811 or http://dx.doi.org/10.2139/ssrn.6169811