Most growing companies don't break because of strategy. They break because the spreadsheet that got them to $5 million can't carry them to $20 million, and nobody noticed until it failed.
I've seen this pattern more times than I can count, across finance, operations, and reporting. It almost always follows the same arc. Let's dive into it.
How The Trap Closes
The spreadsheet starts as a tool. Someone smart builds a model to solve a real problem, and it works. Because it works, more people start relying on it. Then it quietly becomes the system of record, the place the real numbers live. And finally it becomes a single point of failure that exactly one person fully understands.
By the time it's load-bearing, no one made a decision to make it load-bearing. It just happened, one tab at a time.
The model runs fine right up until the moment it doesn't. The person who built it is on vacation, or takes another job, or makes one wrong cell reference buried in a formula nobody else can read. And the error doesn't surface in a test environment. It surfaces in front of a client, a lender, or your board.
This Is an Operating Risk, Not a Finance Quirk
From a risk standpoint, the spreadsheet problem isn't really about spreadsheets. It's about concentration. You've concentrated critical business logic in a tool with:
- No version control, so you can't see what changed or when.
- No audit trail, so you can't prove the number is right.
- No real backup, because the institutional knowledge lives in one person's head, not in documentation.
We'd never accept that for a core system. We accept it for spreadsheets because they feel harmless. They aren't. The most dangerous risks in a growing company are the ones that look like convenience.
The Fix Is Usually Discipline Before It’s Software
People assume the answer is to go buy a platform. Sometimes it is. But more often the first fix is operational, and it's cheaper than you think:
- Document the logic.If the model can't be explained on one page, it's too fragile to be a system of record.
- Define ownership.Name who maintains it and who reviews it. Two different people.
- Build a review step.A second set of eyes on anything that drives a decision or leaves the building.
- Know the ceiling.Recognize the point where a process has simply outgrown the tool, and plan the move before the failure forces it.
Software matters. But software layered on top of an undocumented, undisciplined process just gives you the same risk with a bigger invoice.
The One Question Worth Asking This Week
Walk through the critical spreadsheets running your business and ask one thing about each: what happens if the person who built it walks out the door tomorrow?
If the answer is "we'd figure it out," you're guessing. If the answer is "we'd be in serious trouble," you've found your next project, and it's more urgent than it feels today.
Growing companies love to talk about scaling revenue. The quiet truth is that you can't scale a business faster than you can scale the systems underneath it. The spreadsheet is usually the first one to break.
What's the spreadsheet in your business that you'd be afraid to lose?
Frequently Asked Questions
When should a growing company stop relying on spreadsheets?
A company should consider moving beyond spreadsheets when they become critical to financial reporting, forecasting or operational decision-making and are difficult for more than one person to understand or maintain. Frequent errors, version-control issues, manual data entry and dependence on one employee are also signs that a process may have outgrown the tool.
How can companies reduce spreadsheet risk?
Companies can reduce spreadsheet risk by documenting how critical models work, assigning clear ownership, establishing review processes and maintaining reliable backups. It is also important to identify which spreadsheets have become essential to business operations and determine whether they are still the right tool for the job.
Does a growing company need new financial software to replace spreadsheets?
Not always. Before investing in new software, companies should make sure the underlying process is documented and well-defined. Technology can improve efficiency and controls, but implementing new software without addressing an unclear or inconsistent process can simply transfer the same problems to a new system.
How can a fractional CFO help a growing company improve its financial systems?
A fractional CFO can help identify weaknesses in financial processes, reporting and internal controls, then determine where better documentation, oversight or technology may be needed. This can help a growing company build financial infrastructure that supports greater complexity without introducing unnecessary systems too early.
About the Author
Donald Retreage, Jr. - CFO/COO/EOS® Integrator is a visionary finance executive and trusted advisor to C-suite leaders and boards, known for driving growth and turnarounds through strategic financial and operational leadership. A transformational servant leader, he builds and mentors cross-functional, cross-cultural teams that consistently exceed stakeholder expectations.
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