Typically you can deduct 501c3 donations; if you fall into alternative minimum tax (complex analysis) sometimes deductions are limited.
This answer is based on general legal principles only and is not intended to provide specific legal advice. This answer is for informational purposes only and does not constitute the formation of a lawyer-client relationship. Any reader of this answer should not make decisions based upon in without first directly consulting with an attorney
The purchasers of the tickets can secure a charitable deduction for the excess of the ticket price over the direct costs of the gala for each person. There is standard language you must provide in your acknowledgment and the CPA for the 501(c)(3) organization can assist you with that language.
Marty Davidoff, firstname.lastname@example.org, 732-274-1600. This answer is provided for general information only. You should seek advice from an attorney or tax professional.
Whatever value you receive in exchange for your ticket is not deductible. The excess is considered a charitable donation. What is the value of the dinner that the ticket buyer is receiving? In your situation, it appears that the dinner/gala/function has a value of $175 and the extra charge is $75. This would make for a charitable deduction of $75.00. Consult with a tax lawyer or CPA to get specific advice on your situation.
The content of the this submission is intended to provide general information on the topic presented, and is offered with the understanding that the author is not rendering any legal or professional services or advice. This submission is not a substitute for legal advice. Should you require such services, retain competent legal counsel.
I agree with Mr. Davidoff and Mr. Warshaw, and would add one more point. While it is true that the charitable deduction would be limited to $75, the $175 component of the price may be deductible on another basis. For example, it may be possible to deduct the entire price as a marketing expense if attendance benefits the taxpayer's business. Each individual attendee should consult with his/her tax professional to assess this issue.
This answer is given for educational purposes only. Unless and until I agree in writing to become your lawyer, nothing I say should be interpreted as legal advice.