An AWS Savings Plan is a flexible pricing model offered by Amazon Web Services that enables organizations to save up to 72% on their compute usage compared to On-Demand instance pricing. Introduced as a more flexible alternative to Reserved Instances (RIs), AWS Savings Plans make it easier for businesses to commit to cloud usage and reduce their bills without being tied to specific instance types.
In essence, you agree to commit to a consistent amount of usage (measured in dollars per hour) over a 1 or 3-year term. AWS then applies discounted rates to your eligible usage automatically across services, regions, and instance families, thus helping in cloud cost savings.
Types of AWS Savings Plans
There are two main types of AWS Savings Plans.
1. Compute Savings Plans
- They offer maximum flexibility.
- Applies to any EC2 instance, regardless of region, instance family, or OS.
- Also applies to AWS Fargate and AWS Lambda.
- Ideal for dynamic, evolving workloads and microservices-based architectures.
2. EC2 Instance Savings Plans
- Offer higher discounts (up to 72%) but are more restrictive.
- Locked to a specific instance family in a particular region.
- Ideal for predictable workloads like production environments or legacy apps with known requirements.
Why Choose AWS Savings Plans Over Reserved Instances?
While Reserved Instances (RIs) have been the traditional go-to for AWS cost optimization, they come with rigid requirements such as a commitment to a specific instance type and region.
Savings Plans offer:
- Greater flexibility in instance type, OS, and tenancy.
- Automatic application of savings across your environment.
- Broader service coverage, especially with Compute Savings Plans.
In short, they’re more suitable for modern, DevOps-oriented teams that deploy frequently and scale elastically.
Pricing Model and Commitment Terms
Savings Plans operate on a simple commitment model. You commit to a $ per hour of usage (e.g., $100/hour). AWS compares this commitment against your actual usage.
Usage within the commitment is charged at Savings Plan rates, while usage beyond it is billed at On-Demand rates.
You can choose between:
- 1-year or 3-year terms
- All upfront, Partial upfront, or No upfront payment options
How to Purchase a Savings Plan
Purchasing a Savings Plan is simple via the AWS Management Console or CLI:
- Analyze historical usage using AWS Cost Explorer or the Savings Plans Recommendations tool.
- Select your preferred Savings Plan type, term, and payment option.
- Choose your commitment amount based on past or forecasted usage.
- Review and confirm the plan.
- AWS will then automatically apply the discounts to eligible usage.
Key Benefits of AWS Savings Plans
There are several reasons why companies, from startups to large enterprises, leverage Savings Plans:
- Significant cost reduction: Save up to 72% on eligible services.
- Flexibility: No need to lock into specific instance types.
- Simplicity: Reduces the complexity of managing hundreds of RIs.
- Service-wide application: Supports EC2, Fargate, and Lambda.
- Improved forecasting: Easier to plan long-term budgets.
Best Practices for Maximizing AWS Savings Plans
- Use AWS Cost Explorer & Savings Plans Recommendations
Analyze your historical data to make informed purchase decisions. AWS provides usage graphs, break-even points, and ideal commitment suggestions.
- Start with Conservative Commitments
Begin with a commitment that covers 80-90% of your baseline usage. You can always layer additional plans as usage grows.
- Monitor with AWS CUR (Cost and Usage Reports)
Set up CUR with SavingsPlanArn and SavingsPlanRate columns enabled to analyze which usage qualifies for discounts.
- Tag and Track Your Spend
Utilize detailed cost allocation tags and dashboards to track how effectively your commitments are being utilized.
- Consider Third-Party Optimization Tools
Platforms like CloudKeeper, CloudZero, and Spot.io offer granular analytics, forecasting, and automated purchasing features that surpass the capabilities of native AWS tools.
Common Mistakes to Avoid in AWS Savings Plans
- Overcommitting early: Avoid committing more than your average usage, especially if you’re new to AWS or scaling down.
- Ignoring usage patterns: Purchase plans based on a rolling 30–60 day usage window, not short bursts.
- Lack of monitoring: Regularly audit Savings Plan coverage to ensure optimal utilization.
Final Thoughts: Is AWS Savings Plan Right for You?
If you’re serious about cloud cost optimization and want to reduce AWS bills without sacrificing flexibility, Savings Plans are a must. They are especially powerful when combined with FinOps best practices and ongoing usage monitoring.
By Aman Aggarwal