SLA Credit Calculator

What your cloud provider actually owes you when they miss their SLA. Pick a provider preset (AWS, GCP, Azure, Cloudflare, Vercel) or use Custom contract for anything else. The result includes the credit owed, the cap, and the reality check on whether you can actually claim it.

The three reasons you usually end up with $0

  • The plan has no SLA. Vercel Hobby and Pro, most free tiers, many consumer SaaS products. No contract, no credit, no matter how bad the outage.
  • The outage falls under a carve-out. Scheduled maintenance, third-party network issues, your own misconfiguration, or anything the vendor classifies as outside their control.
  • You missed the claim deadline. Most providers require filing within 30 days. Vendors do not proactively credit accounts. No claim, no credit.

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Frequently asked questions

Can I get a refund when my cloud provider goes down?

Usually not a refund in cash. You get a credit applied to a future bill. Most major providers (AWS, GCP, Azure) require you to actively file a claim within 30 days of the SLA period. Cloudflare Pro and Business have a 25% credit cap regardless of breach severity. Vercel Hobby and Pro plans have NO SLA at all, so your credit is $0 no matter how long the outage. This calculator shows the per-provider tier, the credit amount, and the cap.

Why does a 13-day outage sometimes get $0 in credits?

Three reasons. First, no SLA exists for the affected service tier (Vercel Hobby and Pro are the dramatic example). Second, the outage falls under a contract carve-out: scheduled maintenance, third-party network issues, force majeure, or anything the vendor considers outside their control. Third, you missed the claim deadline (often 30 days). All three failure modes are common. Reading the actual SLA contract is the only way to know which you are exposed to.

Is the credit applied automatically when my provider misses SLA?

Rarely. Some Google Cloud credits are automatic, but for most providers (AWS, Azure, Cloudflare) you must file a support ticket or SLA claim within 30 days of the breach period. Vendors do not proactively credit accounts. If you do not file, the credit is forfeited. Track outages with independent monitoring (the vendor's status page is not a reliable claim source) so you have evidence.

What is a 'credit cap' on an SLA?

The maximum total credit you can receive in any SLA period, regardless of how bad the breach was. Azure caps most credits at 25% of monthly fee. Cloudflare caps at 25%. GCP caps at 50%. AWS varies by service: some go to 100%, others are tighter. The cap means even a multi-day outage usually cannot result in a full month of free service. If you need stronger contractual protection, you typically need Enterprise tier and custom terms.

How accurate are the provider schedules in this calculator?

The schedules are from each provider's publicly documented standard SLA terms as of mid-2026 and are intended as a starting estimate. Different services within the same provider may have slightly different tiers (e.g., AWS S3 differs from EC2). Enterprise contracts often have custom terms. For any commercial claim, verify against the actual contract text you signed. The calculator should help you estimate whether a claim is worth filing, not substitute for reading the contract.

Can I use this calculator if my vendor is not in the preset list?

Yes. Pick the preset closest to your vendor's terms, then override the contracted SLA percentage to match your actual contract. For the credit schedule, the math assumes the standard 'tier-based credit' structure that most cloud providers use. If your contract has a fixed credit (for example, '5% per hour of downtime'), the calculator will not match exactly. File a claim using your contract text in that case.

Track real uptime independently

A vendor's status page is not evidence for an SLA claim. They wrote it. Velprove gives you a third-party, timestamped uptime log of your own. File the claim with data the vendor cannot dispute.

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