Business

Why Business Owners Should Watch Out for Mental Accounting Bias

Dan Nicholson

As a business owner, you’ve probably made decisions that felt right in the moment but, on reflection, may not have been the most financially sound. One of the reasons for this is something called mental accounting bias—a tendency we all have to treat money differently depending on where it comes from or where it’s going. In business, understanding how this cognitive bias works could be the difference between making a profitable investment or a costly mistake. Let's break down what mental accounting is, how it shows up in real-world scenarios, and how you can avoid falling into its trap.

What Is Mental Accounting Bias?

At its core, mental accounting is a concept from behavioral economics in which individuals categorize, label, and treat money differently based on its origin or intended use rather than treating it all as part of the same financial pool. Nobel laureate Richard Thaler first popularized this idea, and since then, it has been used to explain why people make irrational decisions when managing finances.

In business, this might mean putting money from a recent windfall toward a less-than-essential project while ignoring more pressing financial needs. Thaler notes, “People often think of money in separate ‘mental accounts,’ even when it’s all just money in reality.” This leads to skewed decision-making, particularly in businesses that juggle multiple revenue streams or face unpredictable expenses.

Real-World Examples of Mental Accounting in Practice

One of the most common examples of mental accounting is how people treat “found” money, such as bonuses or unexpected income. When individuals receive a bonus or win money, they are more likely to spend it freely rather than saving or investing it as they would with their regular income. The same principle applies to business owners. For example, a sudden surge in sales might prompt a company to increase discretionary spending on areas like marketing or employee perks, without considering long-term financial sustainability.

In the corporate world, mental accounting can manifest through capital expenditures versus operational expenses. Businesses often budget for capital expenditures (e.g., new equipment or technology) separately from their day-to-day expenses, leading them to make significant purchases without fully weighing the ongoing operational impact. This compartmentalization can prevent businesses from viewing all expenses holistically, resulting in cash flow problems or inefficient resource allocation.

How Mental Accounting Can Distort Business Decisions

Mental accounting often causes business owners to make decisions based on “sunk costs” rather than future profitability. Once money is mentally earmarked for a specific purpose, people are less likely to reallocate it, even if it would make more financial sense to do so. For instance, if a company invests heavily in a new product that shows signs of underperformance, mental accounting bias might compel them to continue investing in it rather than cutting their losses.

Additionally, mental accounting can distort perceptions of value. A business owner might splurge on unnecessary upgrades in a profitable month, thinking of it as a reward for success, while cutting essential costs during leaner months due to different mental categorization of funds. This mindset can disrupt long-term financial planning and create volatility in business operations.

Actionable Insights for Navigating Mental Accounting Bias

To avoid falling into the trap of mental accounting, business owners should implement the following strategies:

  1. View All Money as Fungible: Recognize that money, regardless of its source, has the same value and should be treated as part of a comprehensive financial plan. This mindset helps to avoid spending windfalls irrationally or allocating resources inefficiently. Financial decisions should be based on overall business goals, not on where the money came from.
  2. Implement Consistent Budgeting Practices: Avoid creating separate “mental” budgets for different types of expenses. Instead, consolidate all expenses and income into a unified budget. This will encourage better resource allocation and prevent the overspending associated with “bonus” or “extra” funds.
  3. Focus on Opportunity Costs: Business owners should regularly evaluate opportunity costs when deciding how to spend or invest capital. Rather than continuing to invest in a failing product due to mental accounting bias, consider the potential gains from reallocating that investment to a more promising initiative.
  4. Seek External Financial Counsel: Regularly consulting with a financial advisor or accountant can help business owners spot mental accounting biases in their decision-making process. External advisors can provide objective insights and encourage more rational, data-driven decisions.

Conclusion

Mental accounting bias can distort financial decision-making, leading business owners to allocate resources inefficiently or make irrational spending decisions. By understanding this bias and taking proactive steps to view money more holistically, entrepreneurs can improve their financial strategies and make decisions that are aligned with their long-term business goals. From consolidating budgets to focusing on opportunity costs, navigating mental accounting effectively can lead to healthier financial practices and sustained business success.

Sources

Investopedia

The Decision Lab

Corporate Finance Institute

BehavioralEconomics.com

ScienceDirect

Dan Nicholson is the author of “Rigging the Game: How to Achieve Financial Certainty, Navigate Risk and Make Money on Your Own Terms,” deemed a best-seller by USA Today and The Wall Street Journal. In addition to founding the award-winning accounting and financial consulting firm Nth Degree CPAs, Dan has created and run multiple small businesses, including Certainty U and the Certified Certainty Advisor program.

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