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How the IRS decides if you have a business or a hobby

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Advocates worry new IRS debt collection could lead to confusion for taxpayers 01:58

Let's say you're a lover of bonsai plants -- you're good at growing and grooming them and sometimes you sell them, but not always for a profit. You started off thinking of this pursuit as a hobby, but maybe you're thinking of it more now as a business. And as with any business, you should be eligible to claim any losses as a tax deduction against your other income. Right?

Well, maybe. 

The IRS can disallow this deduction if it believes the "business" you're engaging in is really a not-for-profit activity. That is, if the taxman sees what you're doing still as a hobby.

The distinction between a legitimate business, which has an expectation for generating a profit, and a hobby can be significant. Let's say you start your own business and your income from it was approximately $1,000, and your expenses were $10,000. 

If the IRS agrees it's a business, you would be able to claim a loss of $9,000 against the other income on your tax return. For example, when filing jointly, your spouse may have income from her job, and you could deduct the $9,000 loss from that income. But if the IRS sees it as a hobby, your deduction for your expenses would be limited to the amount of gross income from the activity. Any excess expenses wouldn't be deductible.

Changes that could impact your tax refund 03:14

What allows a taxpayer to categorize revenue-producing activity as a business? The IRS has two standards when making this determination.

First is the presumption that a trade, business or revenue-producing activity has a profit motive and is not a hobby when certain criteria are met. An activity is presumed to not be a hobby when the gross income from the activity exceeds its deductions for three out of five consecutive tax years. (This standard is two out of seven years when the activity involves breeding, training and showing of racing horses.)

This standard is straightforward, and when met, the burden is on the IRS to prove the activity is actually just a hobby. Also, taxpayers should make sure to file a Form 5213 before the end of the fourth taxable year (or sixth taxable year in the case of horse racing) to notify the IRS of their intent to claim the presumptive determination.

But what if the business failed to generate enough gross income to exceed its deductions during a five-year period? After all, many businesses fall into this category. 

Treasury regulations say a reasonable expectation of profit isn't required, and consideration can be given to objective factors to conclude that an activity is engaged in for profit and isn't a hobby. These regulations include nine factors that can result in the IRS determining that an activity isn't a hobby.

  1. The manner in which the taxpayer carries on the activity. Acting in a business-like manner and keeping complete books and records is an important indication of a profit motive.
  2. The expertise of the taxpayer or his advisers. Preparing for the trade or activity, studying accepted business, economic and scientific practices, and consulting with an expert are important factors.
  3. Time and effort expended. Devoting much of your personal time, or even leaving a job in another occupation to devote your time to the activity, will be a factor in your favor.
  4. The expectation that assets purchased or used in the activity may appreciate.
  5. Taxpayer's success in carrying on similar activities in the past, resulting in a profit.
  6. The history of income and losses in respect to the activity. It's reasonable to incur a lot of expenses when starting a business, so startup costs can exceed income for several years. But unexplained losses for an extended period can indicate a lack of profit motive. So having a business and financial plan is helpful to explain what's going on.
  7. The amount of occasional profits that are earned. Don't try to outsmart the IRS and claim a $10 profit every few years. The agency will look at the total of your expenses and income over a period of time to determine what's really going on.
  8. Your financial status. If you have substantial income from other sources, the IRS may conclude you are really using your hobby to generate a loss to claim deductions against other income.  
  9. Your personal pleasure or recreation derived from the activity. The presence of a personal motive for carrying on the activity may indicate the absence of a profit motive. This is especially apparent when the activity brings personal enjoyment or recreation. 
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