If the work was related to your normal job and is likely to recur in the future or you performed the same services in prior years, then it would be considered self-employment income and would be subject to self-employment tax, since it is over $400.
So, you would report it in the self-employment income section of TurboTax, where you will be given an option to enter income not reported on a form 1099-MISC.
If not, then it would be reported as "other reportable income", since it is not wage income.
Also, you can deduct expenses associated with the income if you report it as self-employment income.
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