The cloud saves money. That part is true. But the bill has a few line items nobody mentioned in the sales pitch.
If you run a small or mid-sized business, you’ve almost certainly been told that moving to the cloud will cut your IT costs, make your team more flexible, and free you from the headache of maintaining physical servers. And broadly, that’s accurate. According to data from ECI Solutions, the average SMB saves about 36% on IT costs after migrating to the cloud. That’s a real number, and for many businesses it’s the difference between scraping by and investing in growth.
But here’s what tends to get glossed over: the savings aren’t automatic, and the costs aren’t always where you expect them to be. A 2025 report from Flexera found that 84% of organisations struggle to manage their cloud spend, and budgets are exceeded by an average of 17%. That’s not a small business problem or a big business problem. It’s an everyone problem.
So before you sign up for anything, here are the hidden costs worth knowing about.
The five costs that catch people off guard
- Data egress fees.Cloud providers are generally happy to let you put data in. Getting it out is another story.Moving data off a platform, whether you’re switching providers or just pulling large reports, often incurs per-gigabyte charges. According to Gartner, egress fees can account for 10-15% of your total cloud bill, and they’re rarely mentioned upfront. Moving 10 terabytes of data out of AWS, for example, costs roughly $900.
- Premium support tiers.That helpful supportteam the sales rep mentioned? It probably doesn’t come with your base plan. AWS’s free support tier doesn’t include access to a human. Useful business-level support starts at around $100 to $300 per month depending on the tier. Azure and Google Cloud have similar structures. Budget for this from day one, because when something breaks at 9pm on a Tuesday, you’ll want someone to call.
- Unused resources.Forgetting to shut down a test server, leaving a development environment running over a long weekend, or provisioning more capacity than youactually need can quietly rack up charges. It’s the cloud equivalent of leaving every light in the office on overnight, except the electricity bill arrives a month later and nobody remembers who left what running.
- Third-party integration costs.Your accounting software needs to talk to your CRM, which needs to talk to your cloud storage, which needs totalk to your email platform. Each of those integrations might require middleware, API access, or a premium tier on one of the products. These costs add up, and they’re easy to overlook during the planning phase.
- Training and change management.Moving to the cloudisn’t just a technical change. It’s a workflow change. Your team needs to learn new systems, new processes, and new ways of collaborating. The Flexera report found that 75% of organisations cite a lack of internal expertise as their top cloud challenge. Skipping the training investment is a false economy. You’ll pay for it later in lost productivity and support tickets.
So should you still do it?
Yes. For most small businesses, the cloud is still the right move. The cost savings are real, the flexibility is genuine, and the security of major cloud platforms is significantly better than what most SMBs can build in-house. BizTech Magazine documented several small business migrations in 2025 where companies saw meaningful improvements in performance, cost control, and scalability after moving to the cloud.
The key is going in with your eyes open. A few practical guidelines:
- Start with a pilot. Don’t migrate everything at once. Pick one system or workload, move it to the cloud, learn from the experience, then expand. This limits your risk and gives your team time to adapt.
- Budget 10-15% contingency. Unexpected costs will come up. Having a buffer built into the project plan prevents a minor surprise from derailing the whole initiative.
- Get expert help for the migration itself. A lift-and-shift approach (just moving everything as-is) is the fastest option, but it rarely takes advantage of what the cloud can actually do. A partner who understands your business can help you right-size the environment and avoid the most common cost traps.
- Review your bill monthly for the first year. Cloud costs are dynamic. What you’re paying in month three might look very different from month one. Regular reviews catch runaway spend before it becomes a problem.
The bottom line
Cloud migration isn’t a magic wand, but it is one of the smartest infrastructure investments a small business can make. The trick is treating it like a proper project rather than a flip-the-switch moment.
If you’re thinking about moving to the cloud and want an honest conversation about what it’ll actually cost and what makes sense for your size of business, Dial a Nerd can help you build a right-sized plan. We’ll walk you through the options, flag the hidden costs before they surprise you, and make sure the migration actually delivers the savings you were promised.
