The cloud bill that surprises everyone
It happens to almost everyone. The migration is done, everything runs in the cloud, and then the first bill arrives. And it's higher than expected. Significantly higher.
That's not because the cloud is fundamentally expensive – it's because most companies don't actively manage their cloud resources. Dev environments that keep running over the weekend. Oversized VMs using 10% of their capacity. Storage buckets full of data nobody has looked at for months. Snapshots that have piled up like sticky notes on a desk.
FinOps – Financial Operations – is the discipline that gets this under control. No rocket science, but a topic that should be considered from the start, not only after the first bill shock.
The three biggest cost traps
Cost trap 1: oversized instances. This is the most common. Someone sets up a VM, picks a larger instance "to be safe" and then forgets about it. The machine runs at 15% CPU but costs as much as one that's fully utilised. Right-sizing – adjusting the instance size to actual demand – typically saves 20-40%.
All major cloud providers offer tools that show you oversized instances. Azure Advisor, AWS Cost Explorer, Google Cloud Recommender. You just have to use them. Check in once a month and act on the recommendations.
Cost trap 2: forgotten resources. Test VMs that weren't deleted after a project. Load balancers that no longer point to anything. Elastic IP addresses not assigned to any service. Each one doesn't cost much – but it adds up.
A simple rule: if something has no meaningful tag, it should be reviewed. Tagging – labelling resources with information such as owner, project and environment – is the foundation of all cost management. Without tags you don't know who the bill belongs to.
Cost trap 3: on-demand prices for stable workloads. On-demand is like a taxi: flexible but expensive. If you know a server will run for the next one to three years, you should buy reserved instances. The savings are 30-60%, depending on term and prepayment. That's not peanuts – for a mid-sized SME this can amount to five-figure sums per year.
Practical strategies that work immediately
Auto-shutdown for dev/test. If your developers go home at 6 p.m., the test servers should go home too. An automatic shutdown schedule quickly saves 60-70% of the costs for non-production environments. In Azure this works with a simple tag and an automation policy.
Spot instances for interruptible workloads. If you have batch jobs, rendering or data processing that isn't time-critical, spot instances can be up to 90% cheaper than on-demand. The catch: the cloud provider can shut down the instance at any time if it needs the capacity. Not an option for production systems, perfect for background jobs.
Storage tiering. Not all data is needed equally often. Data accessed daily belongs in the standard tier. Older data that's only occasionally needed goes in the infrequent-access tier (50% cheaper). And archive data that you may never need again but must retain goes in the archive tier (90% cheaper). The switch is straightforward and the savings are immediately visible.
FinOps as an ongoing process
Cost optimisation is not a one-off project. It's a habit that has to be built into the company.
The core: a monthly cost review. Sit down once a month, look at the bill, compare it with the previous month and identify anomalies. It doesn't have to be a long meeting – 30 minutes is enough. What matters is regularity.
Define budgets and alerts. Every cloud provider lets you set limits and receive notifications when costs get out of hand. If your Azure bill is normally 3,000 euros a month and suddenly jumps to 5,000 euros, you don't want to find out on the monthly invoice.
And make costs transparent. Tag by department and project so everyone can see what their area consumes. People behave differently when they know their decisions cause visible costs.
The rule of thumb
Companies that practise active FinOps typically save 25-40% compared to those that simply let their cloud run. This is also one of the first areas we at Ovarna examine for new cloud customers. With a monthly cloud bill of 5,000 euros, that's 15,000-24,000 euros a year. It's worth it – and the effort is manageable.
*We'll analyse your cloud costs and show you where you can save. Book a conversation*
