Managing your AWS Cost

Estimated read: 8 min

Before subscribing to anything that spends money, set up cost visibility. In a legacy warehouse you might never have thought about this – the hardware was already bought, or the license was a fixed annual number. Cloud billing is metered and continuous, and a forgotten running cluster is a genuinely common way to get a surprising invoice.

The Billing and Cost Management console

AWS’s Billing and Cost Management console is where every dollar spent on the account is visible, broken down by service, by day, and (once tagged) by project or team. Two things worth setting up immediately:

Cost Explorer – a visual breakdown of spend over time, filterable by service. Useful for spotting “wait, why did EC2 spend jump yesterday” before it becomes a monthly surprise.
AWS Budgets – proactive alerting, covered next.

Setting a budget with email alerts

In the Billing console, go to Budgets -> Create budget.
Choose a cost budget with a fixed monthly amount – something comfortably above what you expect to spend learning this guide’s hands-on sections, so an alert means “something is actually wrong,” not “you used the platform normally.”
Set an alert threshold, e.g. 80% of budget, actual or forecasted spend.
Add your email address as the notification target.

Example: Monthly cost budget = $20
Alert at: 80% actual spend ($16) -> email notification
Alert at: 100% forecasted spend -> email notification

AWS Budgets data updates up to three times a day, with a delay of roughly 8-12 hours between usage and the budget reflecting it – it’s a safety net for catching sustained overspend, not a real-time meter. See AWS’s own Managing your costs with AWS Budgets documentation for the full set of budget types, including usage budgets and Reserved Instance/Savings Plan coverage tracking, beyond the simple cost budget this guide needs.

Net cost against credits and free tier

If you’re on a new account, AWS’s free tier and any promotional credits apply automatically – your net cost (what actually gets charged) can be $0 well past your budget threshold if you’re within those limits. Don’t let a budget alert alone convince you something’s broken; check the Cost Explorer breakdown to see whether you’re still inside free-tier usage before assuming you’ve been billed.

Why this matters specifically for the next lectures

The lectures immediately following this one – creating a Databricks service contract and standing up serverless and classic workspaces – are the first things in this guide that can generate real AWS spend (compute for clusters, storage for workspace data). Having a budget and alert already in place means you’ll know immediately if the cleanup lecture at the end of this section didn’t fully tear something down.

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