Amazon Web Services

AWS Cost Management in 2026: Every Native Tool, Discount, and Optimisation Strategy

AWS has 10+ native cost tools spread across different consoles and documentation pages. This is the single-page reference with honest assessments of what each can and cannot do.

AWS Native Cost Tools

Every built-in cost management tool available on AWS.

Tool	Free?	What It Does	What It Cannot Do
Cost Explorer	Free (API: $0.01/1k requests)	Visualise, filter, and forecast AWS costs and usage	No multi-cloud. Limited custom dashboards. No alerting.
AWS Budgets	2 free, then $0.02/day each	Set cost and usage budgets with email/SNS alerts	Reactive only. No root cause analysis. No recommendations.
Cost Anomaly Detection	Free	ML-based anomaly detection on cost patterns	Only detects anomalies, does not remediate. Delayed detection.
Compute Optimizer	Free	Rightsizing recommendations for EC2, EBS, Lambda, ECS	No RDS or ElastiCache. Limited to compute resources.
Trusted Advisor	Basic free. Full requires Business+ Support	Cost optimisation, security, performance, fault tolerance checks	Most useful checks locked behind paid support plan.
Cost Optimization Hub	Free	Aggregates recommendations from Compute Optimizer, Trusted Advisor, and others	Aggregation only. No new intelligence beyond source tools.
Billing Conductor	Usage-based	Custom billing groups, pricing rules for chargeback	Complex setup. Not a cost analysis tool.
Cost and Usage Report (CUR 2.0)	Free (S3/Athena costs apply)	Most granular billing data export. FOCUS-compatible.	Requires data engineering to be useful. Raw data, not insights.
Savings Plans Recommendations	Free	Recommends Savings Plan purchases based on usage history	Tends to over-recommend. Does not account for planned changes.
RI Recommendations	Free	Recommends Reserved Instance purchases by service	Static analysis. Does not optimise across SP + RI together.

AWS Discount Mechanisms

Savings Plans

Compute SP: Up to 66% off. Flexible across instance families, sizes, OS, tenancy, and regions. Best all-round option.
EC2 Instance SP: Up to 72% off. Locked to a specific instance family and region. Deeper discount for less flexibility.
SageMaker SP: Up to 64% off ML instance usage. Applies to SageMaker notebooks, training, and inference.

Reserved Instances

Standard RI: Up to 72% off for 3-year all-upfront. Locked to specific configuration. Limited modification.
Convertible RI: Up to 66% off. Can be exchanged for different instance types. More flexibility, lower discount.

Spot Instances

Up to 90% off on-demand pricing
2-minute interruption notice
Best for stateless workloads: ECS tasks, EKS pods, batch processing, CI/CD

Enterprise Discount Program (EDP)

5-20% additional off all AWS spend
Requires $1M+ annual commitment
Negotiated directly with AWS sales. Stacks with other discounts.

AWS-Specific Hidden Costs

NAT Gateway

$0.045/GB processed + $0.045/hr

Running 24/7 costs $32.40/month before any data transfer

Cross-AZ Transfer

$0.01/GB each direction

Multi-AZ architectures double this cost

CloudWatch Logs

$0.50/GB ingestion

Verbose application logging adds up fast

EBS Snapshots

$0.05/GB/month

Accumulates silently. Old snapshots are rarely cleaned up.

Elastic IP (unused)

$0.005/hour

$3.60/month per unused Elastic IP

Route 53

$0.50/zone/mo + $0.40/M queries

Every hosted zone costs even with no traffic

ALB (idle)

$16.20/month minimum

Running even with zero traffic

S3 Requests

PUT $5/M, GET $0.40/M

High-frequency access patterns can exceed storage cost

AWS Optimisation Playbook

Ranked by typical impact. Start from the top.

Savings Plans Coverage Analysis

30-66% savings on covered compute

Analyse 30 days of usage. Target 70%+ coverage for stable workloads. Start with Compute Savings Plans for flexibility, then layer EC2 Instance SPs for deeper discounts on predictable families.

Graviton Migration

20-40% cheaper for compatible workloads

Graviton4 (m7g, c7g, r7g) instances are 20-40% cheaper than equivalent x86 instances. Compatible with Linux, containers, and most languages except .NET Framework.

Spot for Stateless Workloads

Up to 90% savings

ECS tasks, EKS pods, batch processing, CI/CD pipelines, and data processing jobs. Use Spot Fleet with diversified instance pools to reduce interruption risk.

S3 Intelligent-Tiering

Automatic. No retrieval fees for frequent access.

Enable for any bucket with mixed access patterns. No analysis required. Automatically moves objects between access tiers. $0.0025/1k objects/month monitoring fee.

Rightsizing with Compute Optimizer

10-30% savings on over-provisioned instances

Enable Compute Optimizer across all accounts. Review recommendations weekly. Focus on instances with less than 40% CPU utilisation.

When AWS Native Tools Are Enough

Native tools are sufficient when:

Single-cloud AWS environment
Below $200k/month spend
Dedicated team member can spend 4-8 hours/week on cost management
Standard tagging strategy is in place

Consider third-party tools when:

Multi-cloud (AWS + Azure/GCP)
Above $200k/month spend
Need automated policy enforcement
Complex organisational chargeback requirements
Consider: Vantage, CloudHealth, Spot.io

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