I think you have been doing the right thing, Jeff.
I believe that the list of benefits you provided essentially eliminates any deductibility. Numerous benefits offer more than insubstantial benefits to sponsors - benefits not available to non-donors. Take, for example, the President's Club membership. That qualifies you to attend additional events. There is a value there.
The speaking opportunities also very likely allow the donor to mention disqualifying language regarding their business. Remember, just one utterance the IRS would deem "advertising" negates any possible gift. This also applies to the mentoring, networking, and referral sessions. At NC State Counsel added this include offering the sponsor a table or booth at an event as they would have an opportunity there to market their business.
Furthermore, the section of the Treasury regulation cited is not a full treatment of the IRS rules defining substantial benefits. As you know, the IRS has a two-part limit for benefits - 2% or $132. However, that later figure changes annually and is updated in other IRS publications (note that even the IRS does not always keep up with this annually changing amount - even Publication 1771).
I have been instructed that the "or" portion of the IRS benefit rules applies to all taxpayers. IRS rules amplifying the substantial benefits definition do not mention any exclusion for corporations or sponsors. If you think about it, the sponsorship ruling mentions in paragraph c, "any person engaged in a trade or business." That could apply to any employed individual. You could simply change your donor references and call everyone a sponsor!
You'll want to seek guidance from an attorney specializing in nonprofit tax law. But they will also need to be familiar not with just this section of code but all references to benefits in exchange for contributions. I have been down this path at Duke and NC State and Counsel indicated that the definition of substantial benefit applies to all taxpayers.
But even if a legal authority agrees that the "or" reference is void in corporate sponsorships, the fact that you are providing these two tickets AND President's Club membership, which provides tickets to other events, and a speaking opportunity at at least one other event (which likely has a price of admission) places the value (advertising opportunities excluded) above the 2% rule!
John
John H. Taylor, PrincipalJohn H. Taylor Consulting, LLC
2604 Sevier Street
Durham, NC 27705
919.816.5903 (cell/text)
Serving the Advancement Community Since 1987