Mark L. Stone is the Managing Partner of Sales Tax Defense LLC. He founded the firm in 2008. The firm specializes in Sales, Use and Transaction Taxes. Services include sales and use tax consulting, audit defense, settlement negotiation, and preparing and filing sales tax returns in multiple states. He represents companies and individuals before state taxing authorities and through the appeals process. Mark has testified as an expert witness in sales and use tax court cases as well as assisted attorneys and other accountants in their representation of clients in criminal investigations.
Mark began his career as a sales tax auditor for the New York State Department of Taxation and Finance. After gaining experience working for the State, he moved on to work at several prominent accounting firms such as Raich Ende Malter LLP and The Marcum Group LLP. In 2008, he decided to open his own firm solely focusing on sales and use tax. During this time, he was also an adjunct graduate school professor at Long Island University C.W. Post Campus.
Mark has written articles in several publications such as Long Island Business News, New York State Society of CPAs Nassau Chapter Newsletter, Daily News, and Long Island Pulse Magazine.
He is a frequent speaker for different organizations and has spoken for the New York State Society of CPAs, the Nassau County Bar Association, the Suffolk County Bar Association, as well as for various accounting firms and businesses.
Jan 7th 2022
PLEASE NOTE THERE WAS A PROBLEM WITH THE FINAL POLL QUESTION. MANY ATTENDEES MENTIONED THIS IN THE CHAT BOX BUT IT WAS NOT ADDRESSED. THE POLL BOX CAME UP BUT NO QUESTION CAME UP TO BE ANSWERED. I was in attendance 100% of the time. I want to make sure I earn full CPE since this was out of the attendees control. Please respond. Thank you, Diane Pesarsick email@example.com
Apr 8th 2021
Loved it, he came on strong answering some of the straight forward initial items I wanted clarification on then kept rolling. I'm a CPA that helps develop accounting software so these clarifications and extra items mentioned were great for a current project we're doing with the tax team in integrating our accounting software with their tax software.
Apr 3rd 2021
I needed a refresher on Sales Tax as I'm helping Nonprofits get their paperwork setup and their organization going. I've had questions on Sales Tax and have not dealt with it much since college. This actually answered every question I had except for my state specific taxable items. It is exactly what I needed!
Jun 10th 2022
I somehow left this webinar even more scared of sales tax than I already was ;) mostly kidding, but Mark did a great job stressing the importance of filing returns and remitting sales tax, and explaining what a sales tax audit might look like.
Mar 25th 2021
Mr. Stone’s presentation reminded me of several issues I need to discuss with my clients. Several of my clients perform industrial services in multiple states and the filing of use tax returns in those states is not currently being done.