Amazon EC2 SLAAWS · Compute · AWS · Compute

• Region-LevelAll running instances deployed concurrently across two or more AZs in the same region (or two regions if the region has one AZ)99.99%

  Monthly uptime below, credit of the bill

  1. Below 99.99%10%
  2. Below 99%30%
  3. Below 95%100%
• Instance-LevelEach individual EC2 instance (Single EC2 Instance)99.5%

  Monthly uptime below, credit of the bill

  1. Below 99.5%10%
  2. Below 99%30%
  3. Below 95%100%

Measured

Region-Level: Monthly Uptime Percentage per AWS region (minutes all multi-AZ instances concurrently lack external connectivity). Instance-Level: per single instance per month.

Credit cap

Up to 100% of the monthly bill for EC2 in the affected region (or for the affected instance) at the lowest tier; credits apply only against future EC2 payments and are issued only if over $1

Claim window

By the end of the second billing cycle after which the incident occurred

How to claim

Open a case in the AWS Support Center with subject 'Amazon Compute SLA Credit Request - Region-Level Claim' or '- Instance-Level Claim', plus resource IDs and request logs

Region-Level and Instance-Level claims cannot be combined or stacked for the same instance. Separately, AWS automatically does not charge for a Single EC2 Instance unavailable for more than six minutes of a clock hour. Since May 25, 2022 this SLA covers EC2 only (EBS, ECS and Fargate were previously in the same Compute SLA).

• Mar 2, 2026Region Availabilityme-south-1Outage3 d
• Mar 1, 2026Region Availabilityme-central-1Outage3 d
• Oct 20, 2025Increased Error Rates and Latenciesus-east-1Outage16 h

• May25Amazon EC2Amazon Compute SLA narrowed to EC2 only; the May 5, 2022 version listed EC2, EBS, ECS and Fargate as Included Services under one SLA. Percentages unchanged (99.99% region, 99.5% instance).Source
• May5Amazon EC2Instance-Level SLA of 99.5% monthly with 10/30/100% credits introduced, replacing the July 22, 2020 'Hourly Commitment' (Single EC2 Instance Hourly Uptime Percentage of at least 90% per clock hour, otherwise that instance hour is not charged).Source
• Mar19Amazon EC2Third credit tier added: below 95.0% now earns a 100% credit (February 12, 2018 version topped out at 30% for 'Less than 99.0%').Source
• Nov15Amazon EC2Region-level EC2 (and EBS) commitment raised from 99.95% to 99.99%. June 1, 2013 version: 'Monthly Uptime Percentage ... of at least 99.95%'; November 15, 2017 version: 'of at least 99.99%'. Credit tiers stayed 10% / 30%.Source