William Holsten

Business Mistake Prevention Specialist

The 2026 Preventable

Business Mistake Risk Study

Why study mistake risk —

when everyone’s focused on growth?

Because most growth advice assumes mistakes are rare.

In real businesses, they’re common —
and preventable.

In this study, 86% of entrepreneurs reported making at least one mistake in the past year that negatively affected their business. Nearly 1 in 5 (18%) reported making five or more.

These weren’t dramatic failures or reckless bets. Most were smaller decisions or execution slips that quietly compounded—draining time, money, energy, trust, and momentum.

Most entrepreneurs don’t run into serious trouble because they lack ambition, intelligence, or effort.
They run into trouble because small, preventable mistakes accumulate unnoticed while they’re busy building, serving customers, and putting out fires.

Despite how common these mistakes are, they are rarely studied directly in entrepreneurs and small businesses—especially outside of success or failure outcomes.

This study set out to examine that blind spot — systematically, and at scale.

Why this study exists

Every  entrepreneur knows mistakes are part of building something new.

Some mistakes are expected — the kind that come from experimenting, iterating, or learning by doing. Those missteps can be valuable. They teach lessons.

But another category of mistakes — the ones this study focuses on — are different.

They don’t come from bold risks or learning curves. They come from the everyday conditions entrepreneurs operate under—pressure, fatigue, distraction, and untested assumptions.

These are the mistakes people recognize immediately — and kick themselves for later.

Entrepreneurs rarely wake up planning to make errors—bad decisions or sloppy execution.
But under sustained pressure, fatigue, distraction, and untested assumptions, even good judgment and follow-through erode. Customer signals get missed. Small slips and lapses occur. Risks go unnoticed until they’re expensive.

This study asked a simple question:

What puts entrepreneurs at risk for preventable mistakes—in both decisions and day-to-day execution—and what actually helps reduce that risk?

Study snapshot (at a glance)

  • Participants: 300+ entrepreneurs and small business owners

  • Geography: U.S. national sample

  • Industries: Mixed (B2B, B2C, product, service)

  • Method: Behavior-based self-report survey

  • Focus: Everyday work conditions associated with mistake risk

  • Timeframe: 2025–26

This study did not measure revenue, success, or failure. It focused on risk exposure — not outcomes.

What the study measured

Most business research focuses on outcomes — growth, revenue, or failure.
This study focused instead on risk exposure before outcomes are decided.

The study examined how entrepreneurs work — how they decide, act, focus, and follow through—not who they are.

It focused on everyday work conditions that increase or reduce exposure to preventable mistakes:

  • Stress — sustained pressure and overload

  • Fatigue — mental or physical exhaustion

  • Distraction — interruptions and divided attention

  • Faulty assumptions — untested beliefs or mental shortcuts

  • Missed customer signals — weak or ignored feedback loops

  • Competence / knowledge — gaps that increase error risk

These are behavioral risk conditions, not personality traits — and they fluctuate based on context, workload, and environment.

What we learned
(high-level patterns)

Several clear patterns emerged across industries, business sizes, and experience levels:

    • Mistake risk clusters — stress, fatigue, and distraction often rise together
    • Faulty assumptions are more common under time pressure than lack of intelligence
    • Customer signals are frequently missed during busy or reactive periods
    • Risk levels fluctuate — the same entrepreneur can be low-risk one week and high-risk the next

These patterns appeared consistently across industries and experience leveles — suggesting mistake risk is situational, not personal.

From insight to action: S.A.F.E.R.

To translate these findings into something practical, the insights were synthesized into a simple framework:

  • S — Slow down at moments that matter
  • A — Assumption-check before deciding
  • F — Focus during high-risk work (limit divided attention)
  • E — Energy guardrails for fatigue (protect alertness and align demanding work with mental capacity)
  • R — Raise small issues early

Each element targets a common condition that increases preventable mistake risk.

None require major process change.
They draw on well-established human-factors and behavioral science research showing that small, well-timed adjustments can significantly reduce error exposure—especially under pressure.

Want your own “mistake risk fingerprint”?

The study shows population-level patterns.

The Quiz applies the same insights to you.


👉 Take the Quiz

Free • ~5 minutes • Instant results and practical tips

No signup required — When you finish, you’ll have the option to join my free
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to help you goof-proof your business.

Study resources

  • Download the free Study Summary (5–10 pages)
    Key findings, visuals, and practical implications
    → (Button or link) Download the Study Summary PDF

    Purchase the full Study Report
    Complete analysis, data tables, and interpretations
    → Buy the full Study Report on Bookvault or Amazon

A closing thought

Preventable mistakes are part of being human—especially when building something that matters.
The goal isn’t zero mistakes or perfect performance. It’s fewer unnecessary ones, better timing, and stronger judgment and execution under pressure.

— William Holsten