As a sole proprietor LLC, what do I need to file and what is the deadline? Do I need to file something by 31Jan2018?

[sfhenm]

I'm an LLC, sole proprietor.  Although I do have income in 2017, my expenses are greater than the income.  Would I need to file something by 31Jan2018?

[viktoriyab11]

April 17, the deadline for filing a 2017 tax return.

Single-member LLC (sole proprietorship)
If you're a sole proprietor who formed an LLC with just yourself as a member, you'll file Schedule C with your Form 1040 and include all LLC income and deductions there.  

Where do I enter Schedule C?

See this link for more information LLC Tax Filing Rules

The tax Year 2017 Calendar: Important Dates and Deadlines https://ttlc.intuit.com/replies/3302298