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Botwinick

Is Your Side Business a Real Business or Just a Hobby? Understanding the IRS Rules

Ken Botwinick, CPA | 06/24/2026

Many Americans earn extra income outside of their primary jobs. Whether you sell products online, provide consulting services, create content, perform music, or operate another side venture, it’s important to understand how the IRS views your activity. The distinction between a business and a hobby can significantly impact your tax deductions and overall tax liability.

At Botwinick & Company, we help business owners, entrepreneurs, and self-employed individuals understand the tax implications of their side income and maximize legitimate deductions while remaining compliant with IRS regulations.

Why the IRS Classification Matters

If your side venture generates expenses or occasional losses, whether the IRS considers it a business or a hobby becomes especially important.

When an activity qualifies as a legitimate business, you may generally deduct ordinary and necessary expenses associated with operating that business. These deductions can include supplies, equipment, marketing costs, professional services, travel expenses, and other qualified expenditures.

In situations where business expenses exceed income, resulting losses may potentially offset income from other sources, including wages, investment income, or self-employment earnings, subject to applicable IRS limitations.

However, if the IRS determines that your activity is a hobby rather than a business, the tax treatment becomes far less favorable. While you must still report all income generated by the activity, hobby-related expenses are generally not deductible for federal income tax purposes.

How the IRS Determines Profit Intent

The IRS focuses heavily on whether you are operating your activity with a genuine intention of making a profit. Simply enjoying an activity does not automatically make it a hobby, but the presence of a profit motive is essential for business tax treatment.

One of the strongest indicators of a profit motive is a history of profitability. Generally, the IRS presumes an activity is operated for profit when it generates a profit in at least three of the previous five tax years.

Certain horse-related activities have a separate standard requiring profits in at least two of the previous seven years.

Meeting these benchmarks can provide valuable support if your business experiences occasional losses in future years.

Factors the IRS Reviews

If your activity does not meet the profitability guidelines, the IRS will evaluate several factors to determine whether you are genuinely operating a business.

Some of the key questions include:

  • Do you maintain complete books and financial records?
  • Do you operate in a professional and business-like manner?
  • Do you devote substantial time and effort to the activity?
  • Do you rely on income from the activity?
  • Have you modified operations to improve profitability?
  • Do you possess the knowledge and expertise necessary to succeed?
  • Have you earned profits from similar activities in the past?
  • Is there a realistic expectation of future profits?
  • Do assets used in the business have the potential to appreciate in value?

The IRS evaluates all relevant facts and circumstances rather than relying on any single factor.

Personal Enjoyment Can Raise Questions

Activities that naturally involve personal enjoyment often receive additional scrutiny from the IRS. For example, photography, woodworking, crafting, collecting, music performance, horse breeding, and similar pursuits may be viewed more closely if they consistently generate losses.

This does not mean these activities cannot qualify as businesses. However, maintaining detailed records and demonstrating a clear profit-oriented approach becomes increasingly important.

The IRS Reviews Your Activity Each Year

An activity’s classification is not permanent. The IRS evaluates each tax year independently.

A venture that begins as a hobby may eventually evolve into a legitimate business as operations become more organized and profitable. Likewise, a business that continually generates losses without evidence of a profit motive could face increased IRS scrutiny.

Business owners should continually evaluate their operations, document their efforts to improve profitability, and maintain accurate records that support their business objectives.

Steps to Strengthen Your Business Position

If you want your side venture to be treated as a business, consider taking proactive steps such as:

  • Opening a separate business bank account
  • Maintaining detailed financial records
  • Creating a formal business plan
  • Actively marketing your products or services
  • Tracking time spent on business activities
  • Adjusting strategies to improve profitability
  • Seeking guidance from tax and business professionals

These actions can help demonstrate a legitimate profit motive while supporting your position should the IRS ever question your deductions.

Professional Tax Guidance for Side Businesses

If you operate a side business that is still growing or not yet consistently profitable, careful tax planning can make a significant difference. Proper documentation, strategic planning, and ongoing fi  nancial oversight can help strengthen your position and maximize available tax benefits.

At Botwinick & Company, we work with entrepreneurs, freelancers, consultants, and small business owners to develop tax-efficient strategies while helping them remain compliant with evolving IRS regulations. Contact our team today to discuss your situation and ensure your business is positioned for long-term success.

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Ken Botwinick, CPA Partner, CPA
Ken Botwinick, CPA is a Partner with Botwinick & Company, LLC and has been with the firm for more than 25 years. Ken specializes in providing accounting, tax, and business consulting services to dental and medical practices. He established the firm’s dental practice and is a sought-after lecturer at dental continuing education programs. Ken has his “finger on the pulse of the dental industry,” and with comprehensive experience in ownership transitions, he assists clients in the healthcare industry to reach their professional and financial aspirations and goals.
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About Ken Botwinick, CPA

Ken Botwinick, CPA is a Partner with Botwinick & Company, LLC and has been with the firm for more than 25 years. Ken specializes in providing accounting, tax, and business consulting services to dental and medical practices. He established the firm’s dental practice and is a sought-after lecturer at dental continuing education programs. Ken has his “finger on the pulse of the dental industry,” and with comprehensive experience in ownership transitions, he assists clients in the healthcare industry to reach their professional and financial aspirations and goals.

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