Waldorf Astoria
3752 Las Vegas Boulevard South
Las Vegas, NV  89158

The Waldorf Astoria is located in the heart of the Las Vegas Strip.


Registration for the Sales Tax Conference/Audit Session is from 1:00 p.m. on Tuesday, February 25th and concludes at 12:00 p.m. on Friday, February 28th.

The goal of this program is to bring multistate tax professionals, with various levels of experience in transactional taxes, together in a group live environment that allows for extensive interaction and exchange of information as well as updates on key SALT issues and insights regarding state tax trends and opportunities. The program is targeted to all levels of experience and no advance preparation is needed.

Registration Fees:   

NOTE: Company must be a COST Industry Member to attend.

Cancellation Fees:

A $50 cancellation fee will be imposed for cancellations received on or before February 3, 2020; cancellations after February 3rd will not be refunded. 

Your company must be in good standing with COST at time of registration and time of program in order for its employees to attend the Sales Tax Conference & Audit Session.  For complaints and special refund policies you can contact Karen Galdámez (kgaldamez@cost.org), 202.484.5220.

Hotel Reservations:

Rooms have been reserved at a rate of $225 single/double (plus taxes). Please make your hotel reservations directly with the Waldorf Astoria at 702.590.8888 and let them know you are attending the COST Sales Tax Conference to get the group rate. Please note that there is a $10 per night resort fee.

We encourage you to make your room reservations early as rooms in the COST block and hotel will sell out. Note: January 26th is the room reservation cut-off date. Rooms at the group rate may not be available if the COST room block or hotel sells out prior to January 26th.

Continuing Education:

COST will assist you in applying for Continuing Education credit for the COST 2020 Sales Tax Conference/Audit Session. COST is registered with the National Association of State Boards of Accountancy (NASBA) as a sponsor of continuing professional education on the National Registry of CPE Sponsors. State boards of accountancy have final authority on the acceptance of individual courses for CPE credit. Complaints regarding registered sponsors may be submitted to the National Registry of CPE Sponsors through its website: www.learningmarket.org.


February’s average high in Las Vegas is in the mid 70’s and the average low is in the low 50’s. Dress for the conference is business casual.  We encourage you to bring a sweater or jacket to the meeting as the meeting rooms tend to be on the cooler side.


By registering for COST’s conferences, workshops or schools, attendees hereby agree to allow COST to use any photos taken of them during the conference/workshop/school in news media, website, publications, articles, marketing pieces and etc.

For More Information:

Please contact Karen Galdámez: KGaldamez@cost.org