The Central Bank of Costa Rica published its April 2026 Monthly Index of Economic Activity showing that national output, on the trend-cycle series, grew 3.4 percent year over year. That was 0.9 percentage points lower than in April 2025 and marked the first month in 2026 in which growth fell below 4.0 percent. For the first four months of 2026, national production rose 4.1 percent compared with the same period of 2025. Growth in firms under the definitive regime was 3.3 percent, while activity in special regimes increased 3.7 percent. The moderation was driven mainly by special regimes, where growth slowed by 12.3 percentage points from April 2025 because of weaker momentum in medical device manufacturing, electronic components and board production, and professional and administrative services. The definitive regime accounted for 80.4 percent of the overall increase in the index, supported by public works and residential construction, education and health activities, financial services linked to deposits and lending, and professional and administrative services including advertising and architecture.