GCP Always Free Limits: Everything You Need to Know in 2024

Signing up for Google Cloud Platform (GCP) is free, but unexpected bills from exceeding GCP Always Free Limits catch many users off guard. Whether you’re a developer testing a side project, a student learning cloud computing, or a small business exploring GCP, understanding these limits is critical to keeping your usage cost-free.

GCP’s free offerings split into two categories: a 12-month free trial with $300 in credit, and the perpetual GCP Always Free tier. This guide focuses entirely on the Always Free limits, which apply even after your trial credit expires, as long as you stay within allocated usage caps.

What Are GCP Always Free Limits?

GCP Always Free Limits are monthly usage caps for specific Google Cloud services that never expire, provided you meet eligibility requirements. Unlike the free trial credit, these limits reset every month and require a valid payment method (credit/debit card or bank account) for identity verification — you will never be charged if you stay within the free allocations.

Key eligibility rules to note upfront:

• Limits are per GCP account, not per project.
• Most Always Free resources are restricted to 3 US regions: us-west1, us-central1, and us-east1.
• Unused free allocations do not roll over to the next month.

Eligible Services and Their GCP Always Free Limits

Not all GCP services are covered under the Always Free tier. Below are the most popular eligible services and their specific limits:

Compute Engine

• 1 e2-micro VM instance per month (US regions only)
• 30GB of standard persistent disk storage monthly
• 1GB of network egress from North America to all global destinations (excluding China and Australia) per month

Cloud Storage

• 5GB of Regional Storage (US regions only)
• 5,000 free Class A operations (e.g., object uploads, listing buckets) per month
• 50,000 free Class B operations (e.g., object downloads, retrieving metadata) per month

App Engine

• 28 instance hours per day
• 5GB of cloud storage
• 1GB of outbound data transfer per day

Serverless and Analytics Services

• Cloud Functions: 2 million invocations per month
• Cloud Run: 180,000 vCPU-seconds, 360,000 GiB-seconds, 2 million requests per month
• BigQuery: 1TB of querying capacity, 10GB of storage per month

Critical Restrictions to Avoid Unexpected Charges

Even if you use eligible services, you may still incur charges if you violate these GCP Always Free Limits restrictions:

• Using non-eligible regions: Compute Engine and Cloud Storage free tiers only apply to us-west1, us-central1, and us-east1. Using other regions (including European or Asian regions) will incur standard charges.
• Using premium resources: GPUs, high-memory VM instances, multi-region storage, and load balancers are not covered under Always Free.
• Exceeding egress limits: Any network egress beyond 1GB per month (for Compute Engine) or 1GB per day (for App Engine) will be charged at standard rates.

5 Tips to Stay Within GCP Always Free Limits

1. Set up billing alerts immediately: Navigate to Billing > Budgets & Alerts in the GCP console to get email notifications when you approach 50%, 90%, and 100% of your free allocations.
2. Stick to eligible regions: Always select us-west1, us-central1, or us-east1 when creating VMs, storage buckets, or App Engine deployments.
3. Monitor usage daily: Use the GCP Usage Dashboard to track how much of your free allocation you’ve used mid-month.
4. Disable unused resources: Turn off VM instances when not in use, delete empty storage buckets, and pause unused Cloud Functions to avoid accidental usage.
5. Avoid premium add-ons: Skip GPUs, SSD persistent disks, and multi-region services unless you’re prepared to pay standard rates.

Frequently Asked Questions

Q: Do I need a credit card to use GCP Always Free?
A: Yes, Google requires a valid payment method to verify your identity. You will not be charged as long as you stay within published GCP Always Free Limits.

Q: Can I use GCP Always Free for commercial projects?
A: Yes, as long as your usage stays within the monthly caps. Many small businesses use Always Free resources for low-traffic websites, internal tools, and testing environments.

Q: What happens if I exceed my GCP Always Free Limits?
A: You will be charged the standard GCP pay-as-you-go rates for any usage that exceeds free allocations. Billing alerts can help you avoid this entirely.

Q: Do Always Free limits reset every month?
A: Yes, all limits reset on the first day of your monthly billing cycle. Unused allocations do not roll over.

Conclusion

GCP Always Free Limits are a powerful way to access enterprise-grade cloud services at no cost, but they require active monitoring to avoid surprise bills. Stick to eligible regions, set up billing alerts, and disable unused resources to keep your usage 100% free.

For the most accurate, up-to-date limit details, always refer to Google’s official GCP Always Free documentation.

You can also pair this guide with our upcoming tutorial on configuring GCP billing alerts for full cost control.

Ready to get started? Sign up for your free GCP account today, and bookmark this guide to reference your usage limits whenever you launch a new project.