Yes - You will need to include this income as self-employment income on your US income tax return.
Since you would be
considered self-employed related to your hair cutting/styling business, so you can also take a
deductionagainst this income for any business expenses that are considered "ordinary" and "necessary" for you business include shampoos, cutting scissors, etc. or other items used in her hairstyling business. (You
could also take the chair rental as rental expense). You will include all of
your business income and expenses on a Schedule C. TurboTax will help guide you
through all the various deductible business expenses.
To enter Business
income and expense information in TurboTax, log into your tax return (for
TurboTax Online sign-in, click Here
and click on "Take me to my return") type "Schedule c" in the search bar then select
"jump to Schedule c". TurboTax
will guide you in entering this information.
Please refer to this
IRS link for more information about Business
Expenses