What Income Is Taxable?

  • Learn what is taxable income.
  • Understand Section 61(a) of the Internal Revenue Code.
  • Learn about No 1099, Cash Sales, Reselling Tickets, Crowdfunding and Garage Sales

The answer to the question “What income is taxable?” can have some surprising outcomes, and this article explores some of the commonly encountered situations that could have unexpected results.

But first, we need to visit Section 61(a) of the Internal Revenue Code. That code section defines gross income as income from whatever source derived unless specifically excluded by other parts of the tax code. This includes (but is not limited to) compensation for services, including fees, commissions, fringe benefits, and similar items. For example, if you are walking down the street and find a $10 bill that you keep, that is technically $10 of taxable income.

We all know or should know, that the W-2 wages, 1099 income from interest, dividends, retirement, business and farming profits, investment income, capital gains, etc., are taxable in some manner. But there are other sources of income that individuals do not associate with taxable income, or ignore because they don’t want to report the income. Here are some examples:

No 1099

The IRS requires payers of certain types of income to issue a Form 1099. It must include a copy to the income recipient, when the income they paid to an individual exceeds a certain amount, generally $600 or more. Many individuals misunderstand the $600, thinking that income less than $600 is not taxable. This is not true; the $600 is simply a filing threshold for 1099s. All the income is taxable, even amounts under the $600 threshold. The same holds for interest income where the filing threshold for a 1099-INT by a bank or brokerage company is $10. Even if the account holder receives interest under $10, that income is still to be reported on their tax return.

Cash Sales

Some businesspeople tend not to include cash sales in their business income thinking it cannot be traced. The IRS, being aware of that behavior, created the Form 1099-K some years back that required third-party transactions to be reported on 1099-Ks when an individual’s transactions exceeded a threshold of 20,000. Third parties include credit card companies, eBay, Stub-Hub, TaskRabbit (when hiring out their services), and others.

At the same time, the IRS conducted studies of various types of businesses to determine what percentage of income was derived from cash sales. This gave the IRS the ability to compare a business’s reported gross sale to the 1099-K reported transactions and identify those businesses under-reporting their income and not including an amount for cash sales. Beginning in 2023, the threshold for third-party 1099-K reporting has been dropped to $600, which may shock individuals with side hustles selling goods online with a service like eBay and who have not been reporting the business on their taxes.


Reselling Sports and Concert Tickets

When someone purchases an event ticket and then resells it at a higher price, the profit is taxable income. If the resale transaction is handled by a third party such as StubHub, the third party is required to issue the 1099-K if the sales exceed the reporting threshold. This may come as a surprise for some individuals now that the 1099-K reporting threshold has been reduced to $600. Based on the price of event tickets these days it won’t take much to reach the $600 threshold.

Another issue is whether this is an occasional act by the taxpayer or a concerted effort to turn a profit. If an occasional act, the transaction can be reported as a short-term capital gain (a long-term capital gain, which has a lower tax rate, requires tickets to be held for a year and a day, almost always not possible), the same as a stock sale. However, if reselling tickets is frequent and consistent, it is most likely a business and the income needs to be reported on Schedule C. The profits from Schedule C are not only subject to income tax, but they are also subject to a 15.3% self-employment tax. The 15.3% is a combination of the SE Tax rate and the 2.9% Medicare tax rate.


Money raised from online crowdfunding sites for purposes other than business is generally treated as a nontaxable gift if the contribution is made with a detached generosity. But a “gift tax trap” occurs when an individual establishes a crowdfunding account to help someone else in need (whom we’ll call the beneficiary) and takes possession of the funds before passing the money on to the beneficiary. Because the fundraiser has possession of the funds, the contributions are treated as a tax-free gift to the fundraiser.

However, when the fundraiser passes the money on to the beneficiary, the money then is treated as a gift from the fundraiser to the beneficiary; if the amount is over $17,000 ($18,000 in 2024), the fundraiser is required to file a gift tax return and to reduce his or her lifetime gift and estate tax exemption. Some crowdfunding sites allow the fundraiser to designate a beneficiary so that the beneficiary has direct access to the funds, in which case the fundraiser avoids encountering any gift tax problems. However, if there is a single beneficiary and a gift is made in excess of $18,000 in 2024, by a single donor, that donor is subject to reporting the gift and reducing their lifetime credit.

U.S. Securities and Exchange Commission

When raising money for business projects, two issues must be contended: the taxability of the money raised and the U.S. Securities and Exchange Commission (SEC) regulations limiting the amount that can be contributed and the income qualifications of the contributor. These SEC rules are not covered in this article. No Business Ownership Interest Given – If no business interest is given and the fundraiser only provides the contributor nominal gifts, such as products from the business, coffee cups, or T-shirts, the money raised is taxable to the fundraiser. Business Ownership Interest Provided – This applies when the fundraiser provides the contributor with partial business ownership in the form of stock or a partnership interest. In this circumstance, the money raised is treated as a capital contribution and is not taxable to the fundraiser.

Online Garage Sales 

Some individuals will occasionally sell some of their personal property on eBay, Etsy, or a similar web platform. If the total amount received is $600 or more, they will also receive a 1099-K. The IRS does not know the circumstances of the sale even though these sales are generally not taxable since used personal items are usually sold for less than their cost. The gross proceeds from the 1099-K need to be reconciled on the individual’s tax return, generally treated like a stock sale. A sale of personal property that results in a gain is taxable income, but if the result is a loss, the loss is not deductible for tax purposes. As an alternative, the IRS does provide a reporting procedure that cancels out the 1099-K income.

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