As a sole proprietor, can I file my Etsy business taxes under my own social security number, even if I created a federal EIN number for the business?

[DoninGA]

Yes, you can use your SSN instead of the EIN on the Schedule C for self-employment.

[Critter-3]

Actually the Sch C will have both numbers on it ... if you get a 1099 with the EIN on it the IRS will automatically marry it to your SS# since you used your SS# to get the EIN.  When you complete the business info section enter in the EIN when allowed.