Well-designed fiscal rules and objectives can support sustainable fiscal policy and macroeconomic stability. Fiscal rules are legally binding constraints on fiscal policy that establish numerical limits on budgetary aggregates through legislation, providing a long-term anchor for public finances. Fiscal objectives are politically mandated targets without legal enforcement (Moretti, Keller and Majercak, 2023). Clear fiscal rules and objectives can help achieve fiscal goals, reinforce fiscal discipline, and anchor quality budget institutions within the government (OECD, 2023). By signalling fiscal intentions, they also provide a benchmark for accountability and enhance market confidence.
The design and legal foundations of fiscal rules and objectives vary, reflecting differences in economic conditions, institutions and policy priorities. Simpler rules that are easier to calculate may enhance public understanding and transparency. In 2024, six out of the seven Southeast Asia (SEA) countries for which data are available had fiscal rules or objectives in place (Table 3.1). The most common are limits on public debt, adopted by six out of seven countries, and a balanced budget, applied in five out of seven countries. This is similar to OECD Member countries, where the most common objectives are a balanced budget (34 of 36 countries), and limits on public debt (30 of 36 countries). Among SEA countries, only the Philippines sets a revenue target, defining a minimum level of revenue as a percentage of gross domestic product (GDP). Similarly, in OECD countries, only 15 of 36 apply revenue targets or constraints. In 2024, of the seven SEA countries for which data are available, Indonesia, Malaysia, Singapore and Thailand had embedded their fiscal rules in the constitution or legislation. Similarly, most OECD countries (29 out of 36) have legally binding national fiscal rules (Table 3.1. Types and legal foundation of national fiscal rules and objectives, ).
To balance between fiscal discipline and flexibility, many countries incorporate escape clauses into their fiscal rules. These allow temporary deviations from fiscal rules in crises. The four SEA countries that have fiscal rules embedded in their constitutions and legislation have escape clauses. In contrast, only 23 out of 29 OECD countries (79%) with fiscal rules have escape clauses. Cambodia and the Philippines have placed their fiscal objectives in a strategic policy document, and/or in a political commitment, so they do not require escape clauses to deviate from them.
Deviations from fiscal rules and objectives should be allowed only in exceptional circumstances. Political commitment and strong enforcement mechanisms are both important in avoiding unjustified deviations. Of the four SEA countries that have embedded fiscal rules in their constitutions or legislation, both Thailand and Malaysia require an explanation to the legislature in cases of deviation (Table 3.2). Malaysia also requires that corrective measures be proposed to the legislature, and Thailand also has further measures in place. Singapore has constitutional arrangements to help ensure the implementation of fiscal rules (see the table notes). Indonesia and Cambodia lack specific enforcement mechanisms for their fiscal rules and objectives, although they have demonstrated a strong political commitment and compliance. However, many OECD countries still implement more stringent enforcement mechanisms, such as automatic correction mechanisms (12 out of 36 countries) and automatic sanctions (6 out of 36 countries).