Your question is not a tax question. However, just as a general rule, if the conference is strictly a private event, they can request just about anything in the form of identification to determine whether someone is entitled to attend the conference.

Personally, I would not hesitate to show some proof of employment provided it did not contain my social security number.

That was harsh. I'd rather cancel my participation in this community than risk receiving a reply the likes of this.

I did not intend my response to be harsh and am truly sorry it had an adverse affect and you were offended.

Nevertheless, this is a forum designed for tax and financial issues, you asked a strictly legal question and I posted an answer. Perhaps the tenor of the answer was overly blunt but it is accurate nonetheless.

A W-9 is not proof of anything when it comes to employment. Even an unemployed person can fill out a W-9 and so long as the information is "true and correct to the best of their knowledge" they've done nothing wrong. If you are self-employed and your business is registered as an LLC or higher, the only thing that I would accept that would come anywhere close to "proof" would be a copy of your business license. I might also request a copy of your most current state registration as proof your business was in fact "active" with the state.

For example, you can get proof of the status of my own LLC at http://search.sunbiz.org/Inquiry/CorporationSearch/SearchResultDetail?inquirytype=EntityName&directi... and it clearly shows my business is "active" and the registration is current.

FYI that was not an Intuit employee replying to the post... Re it being rude...