Ask HN: Taxes and Consulting

Hi HN,

I do not usually consult for pay outside of my full-time job; however, I helped out a buddy this year and did a little contract work (web development) on the side. Thus, this is all new for me (consulting/taxes).

I got paid in checks directly from the company with no tax withholding (federal, social security, etc.).

What's the protocol for handling taxes in this case? Should I contact the company to get their tax ID and file myself, or are they supposed to or required to create a W-2 for me? Are there any additional IRS forms needed (federal level)?

Thanks in advance!