When the commitment pays
Azure RIs reward stable SKUs, not stable budgets. If utilization drops below 65 percent after a rightsizing project, the reservation becomes prepaid capacity. Measure 90 days of meter usage before procurement opens the PO.
Azure · Free tool
Azure VM Reserved Instance savings calculator
Plug in monthly pay-as-you-go spend on a VM SKU, pick term and payment option, and see whether the reservation pays back before your rightsizing roadmap moves the workload.
Estimated reservation outcome
$0
monthly savings vs pay-as-you-go
| Effective discount | 0% |
|---|---|
| Total commitment | $0 |
| Upfront payment | $0 |
| Net savings over term | $0 |
| Break-even month | — |
Frequently asked
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When does an Azure VM RI pay back?
Stable workloads running at least 65 to 70 percent of the month at the same SKU and region are RI candidates. Dev environments that stop nights and weekends rarely reach break-even on a one-year term.
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Does Hybrid Benefit stack with RIs?
Yes. Azure Hybrid Benefit removes the Windows or SQL license surcharge from pay-as-you-go rates. Reserved Instances discount the remaining compute. Enable AHB before buying RIs for the full stack.
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What discount should I enter?
Leave the field blank for typical 2026 public-rate defaults. EA and CSP customers should enter the rate shown in the Azure portal for the specific VM series and region.