AWS SLA

AWS promises 99.9% uptime, with a 10% credit when it misses; its status page showed 3 d of major outage in the last year.

Missed its SLA99.9%

Amazon Bedrock

AWS promises 99.999% uptime, with a 10% credit when it misses; its status page showed 3 d of major outage in the last year.

Missed its SLA99.999%

Amazon DynamoDB

Missed its SLA99.99%

AWS promises 99.99% uptime, with a 10% credit when it misses; its status page showed 3 d of major outage in the last year.

AWS promises 99.95% uptime, with a 10% credit when it misses; its status page showed 3 d of major outage in the last year.

Missed its SLA99.95%

Amazon RDS (Multi-AZ)

AWS promises 99.9% uptime, with a 10% credit when it misses; its status page showed 3 d of major outage in the last year.

Missed its SLA99.9%

Amazon S3 (Standard)

A minor incident on global for 3.6 h, not counted as downtime.

ServicePromisedFirst creditObserved 365d

Latest incidents

Status page

MinorJul 16, 2026

Increased 5xx Errors

MinorMar 7, 2026

Increased Error Rates

A minor incident on eu-central-2 for 71 min, not counted as downtime.

OutageMar 2, 2026

Region Availability

A major outage on me-south-1 for 72 h, counted as downtime.

72 h counted, ran 197 d

OutageMar 1, 2026

Region Availability

A major outage on me-central-1 for 72 h, counted as downtime.

72 h counted, ran 198 d

OutageOct 20, 2025

Increased Error Rates and Latencies

A major outage on us-east-1 for 16 h, counted as downtime.

Support response times

Plans

Fastest 30 minGreater of $29/month per account or 9% of monthly AWS charges up to $10K, 7% $10K-$80K, 5% $80K-$250K, 3% over $250K

Business Support+

Business-critical system down: < 30 mins · Production system down: < 1 hour · Production system impaired: < 4 hours · System impaired: < 12 hours · General guidance: < 24 hours

Fastest 15 minGreater of $5k/month or 10% of monthly AWS charges up to $150K, 7% $150K-$500K, 5% $500K-$1M, 3% over $1M

Enterprise Support

Business/mission-critical system down: < 15 mins · Production system down: < 1 hour · Production system impaired: < 4 hours · System impaired: < 12 hours · General guidance: < 24 hours

Fastest 5 minGreater of $50k/month or 10% of monthly AWS charges up to $1M, 6% $1M-$5M, 5% over $5M (90-day minimum commitment)

Unified Operations

Mission-critical system down: < 5 mins from Incident Management Engineer · Production system down: < 1 hour · Production system impaired: < 4 hours · System impaired: < 12 hours · General guidance: < 24 hours

Fastest n/a

Developer (legacy, closed to new subscriptions)

No published response targets.

Fastest 1 hMinimum $100/month (per AWS FAQ, 'compared to $100 for Business Support previously')

Business (legacy, closed to new subscriptions)

Critical issues: 1 hour

Fastest 30 minMinimum $5,500/month (per AWS FAQ)

Enterprise On-Ramp (legacy, being deprecated)

Critical issues: 30 minutes

SLA changes

From the change logMay 25, 2022

Amazon 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).

From the change logMay 5, 2022

Instance-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).

From the change logMar 20, 2019

Amazon S3 (Standard)

S3 Standard credit schedule gained a 100% tier below 95.0% (and a 25% band 95.0-99.0%). April 4, 2018 version: 99.0-99.9% = 10%, less than 99.0% = 25%. March 20, 2019 version: 10% / 25% / 100%. Standard-IA got the same 100% tier below 95%. The 99.9% threshold did not change.

From the change logMar 19, 2019

Third credit tier added: below 95.0% now earns a 100% credit (February 12, 2018 version topped out at 30% for 'Less than 99.0%').

From the change logNov 15, 2017

Region-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%.