I read this:
Every business that pays employees or is required to file any business tax returns is required to obtain an EIN.
Is this true? I am a sole proprietor and have filed business taxes on a Form 1040 with just a social security number. I did not obtain an EIN, nor did anyone say I had to, when I did business taxes.
I always just use SSN. Is it illegal to file business taxes as a sole proprietor with just an SSN?