Microsoft Sentinel Pricing in 2025

Microsoft Sentinel is a cloud-native Security Information and Event Management (SIEM) solution that provides advanced threat detection, hunting, and incident response capabilities. Microsoft Sentinel is a cloud-native solution built on Azure that is designed to provide scalability and high availability. It incorporates AI-powered threat detection to automatically identify and prioritize risks, ensuring a proactive approach to security. The platform integrates seamlessly with existing Microsoft tools, such as Azure and Office 365, as well as third-party data sources, offering comprehensive support for diverse environments.

In this guide, we’ll take a detailed look at Microsoft Sentinel SIEM pricing and the capabilities of this solution.

Accelerate Your SIEM Implementation

How much does Microsoft Sentinel cost?

Microsoft Sentinel pricing is designed to be flexible, starting from $2 per GB of ingested data for Pay-As-You-Go plans. Annual costs range from tens of thousands of dollars for small businesses to millions for global enterprises, depending on data ingestion and retention needs.

Microsoft Sentinel is billed for the volume of data analyzed in Microsoft Sentinel and stored in Azure Monitor Log Analytics workspace. Data can be ingested as three different types of logs: Analytics Logs, Basic Logs, and Auxiliary Logs (preview).

Microsoft Sentinel offers several pricing models to accommodate diverse requirements:

Pay-As-You-Go: Ideal for unpredictable data volumes.
Commitment Tiers: Discounts for predictable data ingestion.


		Teams with fluctuating data ingestion.
	Varies (discounts available)	Businesses with steady data volumes.

B per day for Commitment Tiers.

Analytics Logs in Microsoft Sentinel

Analytics Logs in Microsoft Sentinel provide support for all data types, enabling advanced analytics, real-time alerts, and unrestricted queries. These logs capture high-value security data that offer insights into the status, usage, security posture, and performance of your environment. By proactively monitoring Analytics Logs with scheduled alerts and analytics, organizations can detect and respond to security threats effectively. They can be used within two pricing frameworks.

Pay-As-You-Go

This model charges based on the volume of data ingested into Microsoft Sentinel for security analysis and stored in the Azure Monitor Log Analytics workspace.
Pricing is calculated per gigabyte (GB) of data.
Ideal for organizations with variable or unpredictable data ingestion needs.
Offers flexibility without a long-term commitment.

Commitment Tiers

This model offers a fixed monthly fee based on a chosen data tier, allowing for predictable costs and discounted pricing compared to Pay-As-You-Go rates.
Organizations select a tier based on their expected data volume. Discounts increase with higher tiers.
A minimum commitment of 31 days is required, after which you can adjust or cancel your tier.
This model provides cost predictability and potential savings for consistent data ingestion volumes.

The total cost for Analytics Logs includes data ingestion charges for Azure Monitor Log Analytics based on the selected pricing model. Commitment tiers are especially beneficial for organizations with stable, high-volume data needs, offering significant cost savings while maintaining advanced security monitoring capabilities.

Basic Logs in Microsoft Sentinel

Basic Logs are designed to handle high-volume data with relatively low security value. These logs are typically verbose and lack the advanced capabilities of analytics logs. They are best suited for ad-hoc querying, investigations, and on-demand searches rather than for deep analytics or real-time alerts.

The pricing for Basic Logs in Microsoft Sentinel is $1.12 per GB within a Pay-As-You-Go pricing framework.

Auxiliary Logs (Preview) in Microsoft Sentinel

Auxiliary Logs in Microsoft Sentinel are high-volume, low-fidelity data sources, such as network and firewall logs. These logs play a vital role in security investigations, threat hunting, and providing additional context during attack analysis. Currently in preview, Auxiliary Logs are not yet billed, allowing organizations to explore their functionality without additional costs.

The pricing for Auxiliary Logs (Preview) in Microsoft Sentinel is $0.19 per GB within a Pay-As-You-Go pricing framework.

How can UnderDefense help you maximize Microsoft Sentinel SIEM?

UnderDefense offers Managed SIEM services to help businesses fully leverage Microsoft Sentinel’s capabilities. By partnering with UnderDefense, you benefit from:

Expert setup and optimization: Ensure tools and configurations are tailored to your environment.
24/7 threat hunting and response: Proactively identify and mitigate risks.
Cost management: Optimize your Sentinel setup to reduce unnecessary costs.
Enhanced visibility: Correlate data across platforms for a comprehensive security view.

UnderDefense transforms alerts into answers and makes sure your SIEM works harder, improve your security visibility with co-managed or fully managed SIEM services. At the same time, you are in control of your IT infrastructure 24/7.

1. Are there any free data sources available on Microsoft Sentinel?

Yes. Certain data sources, such as Office 365 audit logs, Azure activity logs, and alerts from Microsoft threat protection solutions, can be ingested into Sentinel at no additional cost.

2. How can I estimate my Microsoft Sentinel costs?

3. What are the benefits of the simplified pricing tiers introduced in July 2023?

Simplified pricing tiers combine ingestion and analysis costs into a unified model, simplifying budgeting and cost management.

4. How can I reduce my Microsoft Sentinel costs?

Choose the appropriate Commitment Tier.
Try pre-purchase plans for discounts.
Separate non-security data from Sentinel workspaces.
Adjust data retention settings to balance compliance and cost.

By making informed choices and partnering with providers like UnderDefense, you can maximize the value of Microsoft Sentinel while keeping your security costs under control.