You’re Probably Asking the Wrong Question
“Should we build or buy?” That’s the question every growing company eventually asks. It’s also the wrong starting point.
The better question: what’s actually costing you money right now?
The average company uses 106 SaaS applications. Not a typo. And roughly half those licenses go completely unused. That’s real money disappearing into auto-renewals nobody audits.
But here’s the flip side. Only 29% of large custom software projects get delivered successfully. Over a third get abandoned entirely.
The graveyard of failed custom builds is enormous.
So neither path is safe. Both can burn cash. The difference is knowing which one burns cash for your specific situation.
When Buying Makes Sense (And When It Doesn’t)
SaaS is the right call more often than most dev shops will admit. If your process follows industry norms, someone’s already built the tool. Invoicing, CRM, project management, HR. These are solved problems.
SaaS deploys 40-60% faster than custom alternatives. You’re up and running in days, not months.
The monthly fee feels manageable. For non-differentiating functions, it’s almost always the right move.
The trouble starts around year two.
SaaS pricing rose 11.4% year-over-year in 2025. General inflation? 2.7%. That gap compounds.
The tool that cost you EUR 500/month when you signed up now costs EUR 800, and you’re locked into their roadmap. They ship features their biggest customers want. You’re not their biggest customer.
One of our clients ran their entire operations on seven SaaS tools stitched together with Zapier and a shared Google Sheet. Three people spent roughly 15 hours per week just copying data between systems. That’s not a workflow. That’s a tax on every transaction.
When Custom Software Actually Wins
Custom development makes sense in a surprisingly narrow set of situations. But when it fits, the numbers are hard to argue with. SMBs using custom or heavily customized software grow 2.8x faster than those relying only on off-the-shelf tools.
Your process is your moat
If the way you do things is what makes you competitive, generic software forces you into generic workflows.
A logistics company we worked with had a quoting process that was genuinely unique. Every CRM they tried forced them to strip out the parts that made them good.
They didn’t need a better CRM. They needed their process, encoded in software.
You’re spending more on integration than on the tools themselves
Gartner estimates that hidden integration, training, and customization costs inflate true SaaS TCO by 150-200% beyond the sticker price. If you’re paying EUR 3,000/month for a platform but spending EUR 5,000/month on consultants to make it work with your other systems, the math has already flipped.
You’ve hit a ceiling and it’s costing you revenue
The spreadsheet that handled 10 orders a day doesn’t handle 500. The CRM that worked for 5 people buckles at 50. Sound familiar?
Scale breaks tools that weren’t designed for it. And every hour your team spends fighting the tool is an hour they’re not spending on customers.
Compliance gives you no choice
Regulated industries (healthcare, finance, government) often have data handling requirements that off-the-shelf tools can’t meet. Period. The EU isn’t getting less strict. If you’re processing sensitive data under GDPR, you need to know exactly where that data lives and who touches it.
The Honest Cost Picture
Custom software costs more upfront. That’s not debatable. But 78% of total software cost happens after launch, not during development. Maintenance, updates, scaling, training. This is true for custom and off-the-shelf.
The German Mittelstand spent EUR 31.9 billion on digitalization in 2023, up 54% from pre-COVID levels. That money went somewhere. A lot of it went into SaaS subscriptions that solved the wrong problem.
Here’s what we tell clients: don’t compare the build cost to the SaaS sticker price. Compare the 3-year total cost of ownership. Include the integration work. Include the workarounds. Include the hours your team burns on processes that should be automated.
When you run that math, custom often wins for core business functions. SaaS still wins for everything else.
A Decision Checklist That’s Actually Useful
Skip the framework with three perfectly balanced questions. Real decisions are messier than that.
Ask these instead:
- Is this process core to how we make money? If someone copied your software stack tomorrow, would they be able to compete with you? If yes, that’s your custom build candidate.
- What are we actually spending on the current solution? Not the license fee. The total: licenses, integrations, workarounds, manual hours, consultant fees, opportunity cost of features you can’t build.
- Do we have the budget for the first 18 months? Custom software typically costs EUR 50,000-250,000 upfront for an SMB project, plus ongoing maintenance. If that’s not in range, SaaS is fine for now.
- Can we describe exactly what “better” looks like? “Our current tool is annoying” isn’t enough. “We need to cut quoting time from 2 hours to 15 minutes” is.
- Are we willing to own the maintenance? Custom software is yours. That’s the upside and the responsibility. You’ll need a plan for updates, hosting, and bug fixes.
If you answered yes to #1 and #2 reveals a painful number, you’re probably ready.
The Middle Path Most People Miss
It doesn’t have to be all-or-nothing. Keep SaaS for commodity functions: email, accounting, project management. Build custom for the thing that makes you you.
Connect them with APIs. That’s what modern architecture is for.
Your custom quoting tool talks to your SaaS accounting system. Your internal dashboard pulls from your SaaS CRM. You get the speed of off-the-shelf where it doesn’t matter and the competitive edge of custom where it does.
The German software market hit EUR 52.7 billion in 2025, with 58% now cloud-based. The infrastructure to build and connect custom tools has never been cheaper or more accessible.
You don’t need a 50-person engineering team. You need a clear problem and the right partner.
For a deeper look at AI-powered automation that complements custom builds, read our guide on AI use cases that actually save SMBs money. And if you’re weighing whether your team is ready for a build project, the AI readiness checklist covers the data and process maturity you’ll need.
Not sure whether to build or buy? Let’s figure it out together. We’ll look at your current stack, your pain points, and your budget, and tell you honestly which path makes sense.
