Azure Service Bus Pricing (2026)
Managed message queue services enable asynchronous communication between distributed application components. They decouple producers from consumers, improving system resilience and enabling event-driven architectures at scale. Service Bus provides enterprise messaging with topics, subscriptions, sessions, and transactions for complex routing scenarios. Starting from $0.0100/hr ($7.30/mo) for WCF Relay - WCF Relay Message.
Key Features
- ✓Guaranteed message delivery with at-least-once or exactly-once semantics
- ✓Dead-letter queues for handling failed messages
- ✓FIFO ordering and message deduplication
- ✓Automatic scaling to handle variable throughput
- ✓Server-side encryption and access control
Common Use Cases
Microservices Communication
Decouple services by passing messages through queues, ensuring reliability even when downstream services are temporarily unavailable.
Task Processing
Distribute background tasks like image processing, email sending, or report generation across worker fleets.
Event-Driven Architecture
Build event-driven systems where components react to messages published to topics or queues.
On-Demand Pricing
Pay-as-you-go pricing with no upfront commitment. You are billed per hour of usage and can start or stop at any time. Hourly rates start at $0.0100/hr ($7.30/mo) for WCF Relay - WCF Relay Message.
| Instance | vCPU | Memory | Price/hr | Price/mo |
|---|---|---|---|---|
| Standard - Standard Base Unit | - | - | $0.0134 | $9.81 |
| Geo Replication Zone 1 - Geo Replication Zone 1 Data Transfer | 1 | 4 GB | $0.0900 | $65.70 |
| WCF Relay - WCF Relay | - | - | $0.1000 | $73.00 |
| WCF Relay - WCF Relay Message | - | - | $0.0100 | $7.30 |
| Hybrid Connections - Hybrid Connections Listener Unit | - | - | $0.0134 | $9.78 |
| Premium - Premium Messaging Unit | - | - | $0.9275 | $677.08 |
| Basic - Basic Messaging Operations | - | - | $0.0500 | $36.50 |
| Standard - Standard Messaging Operations | - | - | $0.5000 | $365.00 |
| Hybrid Connections - Hybrid Connections Data Transfer | - | - | $1.0000 | $730.00 |
| Standard - Standard Brokered Connection | - | - | $0.0300 | $21.90 |
| Geo Replication Zone 2 - Geo Replication Zone 2 Data Transfer | 2 | 8 GB | - | - |
Reserved Instance & Savings Plans Pricing
Commit to 1 or 3 years for lower hourly rates.
| Instance | vCPU | Memory | Price/hr | Price/mo | 1yr RI/hr | 3yr RI/hr |
|---|---|---|---|---|---|---|
| Standard - Standard Base Unit | - | - | $0.0134 | $9.81 | - | - |
| Geo Replication Zone 1 - Geo Replication Zone 1 Data Transfer | 1 | 4 GB | $0.0900 | $65.70 | - | - |
| WCF Relay - WCF Relay | - | - | $0.1000 | $73.00 | - | - |
| WCF Relay - WCF Relay Message | - | - | $0.0100 | $7.30 | - | - |
| Hybrid Connections - Hybrid Connections Listener Unit | - | - | $0.0134 | $9.78 | - | - |
| Premium - Premium Messaging Unit | - | - | $0.9275 | $677.08 | - | - |
| Basic - Basic Messaging Operations | - | - | $0.0500 | $36.50 | - | - |
| Standard - Standard Messaging Operations | - | - | $0.5000 | $365.00 | - | - |
| Hybrid Connections - Hybrid Connections Data Transfer | - | - | $1.0000 | $730.00 | - | - |
| Standard - Standard Brokered Connection | - | - | $0.0300 | $21.90 | - | - |
| Geo Replication Zone 2 - Geo Replication Zone 2 Data Transfer | 2 | 8 GB | - | - | - | - |
How Service Bus Pricing Works
On-Demand
Pay per hour with no long-term commitment. Ideal for variable workloads and development environments.
Reserved / Committed Use
Commit to 1 or 3 years for significant discounts.
Spot / Preemptible
Use spare capacity at steep discounts. Best for fault-tolerant, batch, and stateless workloads.
Monthly Cost Examples
Frequently Asked Questions
What is Azure Service Bus?
Azure Service Bus is a cloud service offered by Microsoft Azure. It provides various configurations (11 pricing tiers available) with pay-as-you-go and committed-use pricing options.
How much does Azure Service Bus cost per month?
Prices range from $7.30/month for WCF Relay - WCF Relay Message to $730.00/month for Hybrid Connections - Hybrid Connections Data Transfer on On-Demand pricing in eastus.
Does Azure Service Bus have a free tier?
Azure offers various free tier options. Check the official Azure pricing page for the most current free tier details for Service Bus.
How many Azure Service Bus pricing tiers are available?
There are 11 pricing tiers available for Azure Service Bus. These range from entry-level configurations to high-performance options for enterprise workloads.
What pricing models does Azure Service Bus offer?
Azure Service Bus offers On-Demand (pay-per-hour, no commitment), Reserved/Committed Use (1-3 year commitments for significant discounts), and in some cases Spot/Preemptible pricing for interruptible workloads at the lowest cost.
When does serverless become more expensive than a dedicated instance?
Serverless is typically cheaper for sporadic or bursty workloads under ~1 million invocations per month. Once sustained utilization exceeds 30-40% of a dedicated instance, a reserved VM or container usually costs less. Profile your actual request patterns before committing to either model.