AWS RDS Cost Optimization Guide: Cut Database Costs in 2026

Amazon RDS costs are not fixed - they vary based on configuration and usage. Making informed configuration and governance decisions is key to optimizing costs. Graviton instances offer better price-performance for common databases, while storage costs can be reduced by decoupling performance from capacity. Serverless databases are not always cost-effective for stable workloads, and manual snapshot storage can add up over time. Having clear visibility into where costs come from is crucial for effective cost management.