# FinOps

> Understanding and controlling cloud spending, as a job shared by engineers and finance.

- Level: Intermediate
- Topics: Cloud
- URL: https://tidbit.legios.com.ar/finops/
- In Spanish: [FinOps](https://tidbit.legios.com.ar/es/finops/)

**FinOps** (from finance and operations) is the practice of managing cloud costs as a shared responsibility. In a traditional data center, buying servers was a big, slow decision approved by finance. In the cloud, any engineer can start resources in seconds and the bill arrives at the end of the month, already spent. FinOps brings engineering, finance and business teams together so that spending decisions are made with the numbers in view.

The FinOps Foundation, part of the Linux Foundation, describes it as a loop of three phases. **Inform**: make costs visible and assign them to teams and products, usually by **tagging** every resource with its owner. **Optimize**: cut waste, like idle servers left running, oversized machines (**rightsizing**), forgotten disks and snapshots, and commit to steady usage with discounts such as reserved instances or savings plans. **Operate**: set budgets and alerts, review costs regularly and make cost one more thing teams track, next to speed and reliability.

The goal is not to spend as little as possible but to get the most value per dollar: spending more on a product that grows can be the right call. Clouds provide tools for it, such as AWS Cost Explorer and Budgets, Azure Cost Management and Google Cloud billing reports. The most common surprises are data leaving the cloud, logs and storage that grow quietly, and test environments nobody turned off.

## An analogy

A shared household budget for the electricity bill. Everyone can turn on lights and heaters, so the bill only stays reasonable if everyone can see what uses the most and agrees on turning things off when they leave the room.

## Keep in mind

- Makes cloud spending a shared responsibility of engineering, finance and business.
- Three phases: inform (visibility), optimize (cut waste), operate (budgets and habits).
- Common levers: tagging, rightsizing, turning off idle resources, commitment discounts.
- Aims for value per dollar, not the lowest possible bill.

## Go deeper

- [What is FinOps? (FinOps Foundation)](https://www.finops.org/introduction/what-is-finops/)
- [What is FinOps? (Microsoft Learn)](https://learn.microsoft.com/en-us/cloud-computing/finops/overview)
- [Cloud cost management (AWS)](https://aws.amazon.com/aws-cost-management/)

## Related terms

- [Cloud computing](https://tidbit.legios.com.ar/cloud-computing/): Renting computers over the internet instead of buying your own.
- [Data center](https://tidbit.legios.com.ar/data-center/): A building full of servers where the internet, the cloud and AI actually run.
- [Server](https://tidbit.legios.com.ar/server/): A computer whose job is to answer requests from other computers, all day, every day.
- [Linux](https://tidbit.legios.com.ar/linux/): A free, open source operating system that runs most of the internet's servers.
- [Microsoft](https://tidbit.legios.com.ar/microsoft/): The company of Windows and Office, now just as much a cloud company with Azure.
- [Google Cloud](https://tidbit.legios.com.ar/google-cloud/): Google's cloud business: computing, storage, data and AI services rented by the hour.