Grand Hyatt Denver
1750 Welton Street
Denver, Colorado  80202
(303) 295-1234

The Grand Hyatt Denver is 25 miles from Denver International Airport. Union Station is 1 mile from the Grand Hyatt.

Rooms have been reserved under a COST room block of $219 single/double. Make your hotel reservations early and directly with the Grand Hyatt Denver. COST room block may sell out prior to the February 10, 2023 cut-off date.



16th Street Shuttle – Runs throughout the central business and entertainment district of downtown Denver.

Light Rail Service/RTD – Stops at most corners in the city, including Invesco Field, Pepsi Center/Six Flags/Elitch Gardens, Union Station - Lower downtown (LODO)/Coors Field/16th Street Mall.

Denver Airport Rail- Travelers can now use A Line, the new rail service from Denver International Airport to LoDo's (lower downtown) Union Station and back, provided by Regional Transportation District (RTD).  The Denver airport rail has six stops along the way and takes approximately 37 minutes at a cost of $9 each way.


The goal of this program is to bring multistate tax professionals, with various levels of experience in transactional taxes, together in an 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.

The program starts on Tuesday, February 21, 2023 at 3:00 p.m. and ends on Friday, February 24, 2023 at 11:45 AM.

Registration Fees:  


Before February 10, 2023

After February 10, 2023

COST Industry Member






 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 1, 2023; cancellations after February 1st 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.  For complaints and special refund policies you can contact Karen Galdamez ([email protected]), 202.484.5220.

Continuing Education:

COST will assist you in applying for Continuing Education credit for the COST 2023 Sales Tax Conference. 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 Denver is in the mid to upper 40’s and the average low is in the high 20’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: [email protected]