What Is Digital Debt, and Why Is It Quietly Costing Your Firm Money?

Everyone in IT knows what technical debt is. Cut a corner today to hit a deadline, and you pay for it later with interest, usually in the form of a system that's harder to maintain than it should be.

Digital debt is the same idea, applied somewhere firms almost never look: the everyday sprawl of Microsoft 365. Teams channels, SharePoint sites, files, automations, and small apps that got built for a reason, served their purpose, and were never retired. Nobody decided to keep them. They just never got switched off.

It doesn't get talked about because it doesn't look like a problem. Nothing's broken. Nothing's slow. It just quietly accumulates, and by the time anyone notices, untangling it feels like a much bigger job than it actually is.

Where digital debt actually builds up

Abandoned Teams. A project team gets spun up, does its work, and the matter closes or the project wraps. The Teams channel doesn't get archived. Guest access granted for external collaborators, sometimes clients, sometimes vendors, stays exactly as it was set up. Months or years later, that channel is still there, still technically accessible, and nobody's thought about it since.

Duplicated files. This one's less about security and more about cost in time and confidence. The same contract template exists in someone's OneDrive, a SharePoint library, and an email attachment from eighteen months ago. Two of the three are out of date. Whoever needs it next has no reliable way to know which version is correct, so they either guess or waste time checking. Multiply that across a firm and it's a genuine drag on how quickly people can actually work.

Forgotten Power Automate flows. Automation is one of the more underused parts of most M365 licences, and when firms do build flows, they're rarely reviewed afterwards. A flow gets built to solve a specific problem, the process it was built for changes six months later, and the flow either breaks silently or keeps running against an outdated process. The person who built it may have moved roles or left the firm entirely. Nobody owns it, and nobody's checking whether it's still doing what it's meant to.

Orphaned Power Apps. The same pattern shows up with Power Apps. Someone builds a quick internal tool to solve a one-off problem, it works, and it never gets decommissioned once the need passes. It sits there with whatever access and data connections it started with, unreviewed, because building something new always gets more attention than retiring something old.

Why this matters more than it looks like it should

None of these things are dramatic on their own. That's exactly the problem. Digital debt doesn't announce itself with an error message or a support ticket. It just sits there, adding up, in three specific ways.

It's more surface area for something to go wrong. Every abandoned Teams channel, every unreviewed SharePoint site, is another place sensitive data can sit outside anyone's active attention. If that data includes client files or financial information, it's also another thing that needs explaining if a regulator, an insurer, or a client ever asks who had access to what.

It slows people down. Duplicated files, unclear ownership, and tools nobody remembers the purpose of all cost time. Not dramatically, in any single instance, but constantly, in small increments that add up across a firm.

It makes everything built afterwards harder to trust. Once a tenant has enough of this sprawl, people stop trusting what they find in it. Is this SharePoint site still current? Is this flow actually running correctly? That uncertainty is its own quiet cost, and it compounds the longer it's left.

Building the habit of retiring things

The fix isn't a one-off spring clean, though that's usually where firms need to start. It's building a habit that most firms have never had: when something's built for a specific purpose, someone decides, up front, what happens to it once that purpose ends.

A practical starting point: pick one category from the list above, whichever feels most overdue, and do a single pass. Which Teams channels haven't had activity in six months? Which SharePoint sites are tied to matters or projects that closed over a year ago? Who actually owns each Power Automate flow still running, and does that process still work the way it did when it was built?

You don't need to solve all of it at once. You need to start treating "retire it" as a decision that gets made deliberately, rather than something that never happens because nobody's job is to notice.

If you're not sure how much digital debt has built up in your own tenant, that's a straightforward thing to find out. Happy to talk through what a proper review would look like for how your firm actually works.