Hello Tytea,
With your side business you will report all your income and expenses on a schedule C. Being a single member LLC is treated as being a sole proprietor for tax purposes. When you are filling out the schedule C you will see a place to put you LLC nae and EIN. The schedule C gets filed with your normal tax return and the net profit/loss goes to the 1040.
Here is a link with additional information https://turbotax.intuit.com/tax-tips/self-employment-taxes/beginners-tax-guide-for-the-self-employed...
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