The Hidden Cost Problem
Most small and mid-size businesses we work with are overpaying for AWS by 20-40%. The frustrating part is that it's usually not one big mistake — it's a handful of small ones that compound over time.
Here are the five we see most often.
1. Running Everything on On-Demand Pricing
On-demand instances are the default, and that default is expensive. If you have workloads running 24/7 — databases, application servers, background processors — you're paying a premium for flexibility you're not using.
The fix: Identify stable workloads and purchase Savings Plans or Reserved Instances. A 1-year commitment with no upfront payment typically saves 30-40%.
2. Oversized Instances
"We might need the headroom" is a phrase that costs companies thousands per month. We regularly find instances running at 10-15% CPU utilization.
The fix: Use CloudWatch metrics to identify instances averaging below 30% CPU over 14 days. Rightsize them one tier down. You can always scale back up if needed.
3. Forgotten Resources
Old EBS volumes, unused Elastic IPs, stale snapshots, idle load balancers — they accumulate silently. We once found a client paying $800/month for EBS volumes attached to instances that had been terminated months ago.
The fix: Run a monthly cleanup sweep. AWS Trusted Advisor flags some of these, but a manual review catches more.
4. No Tagging Strategy
Without tags, you can't allocate costs to teams, projects, or environments. That means you can't answer "why did our bill go up?" — which means you can't fix it.
The fix: Implement a mandatory tagging policy with at least: Environment, Team, and Project tags. Enforce it with AWS Config rules.
5. Ignoring Data Transfer Costs
Data transfer between availability zones, between regions, and out to the internet adds up fast. It's the line item most people skip over — until it's 15% of the bill.
The fix: Audit your data flow. Use VPC endpoints for AWS service traffic, keep chatty services in the same AZ, and use CloudFront for public content distribution.
The Bottom Line
None of these fixes require a major architecture overhaul. Most can be implemented in a few days and start saving money immediately. The key is making cost optimization a regular practice, not a one-time project.
If you're not sure where to start, our free consultation can help you prioritize the biggest opportunities in your specific environment.