Hi,
Yes you are correct, a single member LLC can file a 1040 tax return, reporting self-employment revenue and expenses using the self-employed version of TurboTax. You will fill out the self-employment entries under income, and a 1040 schedule C will be reported on your personal tax return. Here is an Intuit link for the self-employed version of Turbotax
https://turbotax.intuit.com/personal-taxes/online/
