Hyatt Regency St. Louis Arch
315 Chestnut Street
St. Louis, MO  63102
(314) 655-1234

The Hyatt Regency St. Louis Arch is 19 miles from St. Louis Lambert International Airport (STL)

Rooms have been reserved under a COST room block for $209++ per night. We recommend making room reservations in the COST room block early as they will sell out.

Please make your hotel reservations early and directly with the Hyatt Regency using this link.


Registration for the Annual Meeting can be done online at any time. The conference will start at 1:00 p.m. on Tuesday, September 24, 2024, and end on Friday, September 27, 2024 at noon.

COST’s Annual Meeting offers sessions for every state tax and government affairs professional with tax responsibilities.  The Meeting has an extensive program covering all types of state and local taxes that business taxpayers are confronted with on a daily basis.  The ever-popular audit sessions and state chamber of commerce roundtables are included, and other conference sessions provide updates on timely SALT issues and insight regarding state tax trends and opportunities.  Targeted to all SALT types and levels of experience.


Registration Fees:  


Before September 3, 2024

After September 3, 2024

COST Industry Member
Gives access to any and all sessions



COST Practitioner Partner
Gives access to any and all sessions except for Audit Sessions



Non-COST Industry Member
Gives access to any and all sessions except for Audit Sessions



Non-COST Practitioner Partner
Gives access to any and all sessions except for Audit Sessions



Chamber of Commerce
Gives access to any and all sessions



Spouse/Guest (no sessions)



Cancellation Fees:

A $50 cancellation fee will be imposed for cancellations received on or before September 3, 2024; cancellations after September 3rd will not be refunded.

Your company/firm must be in good standing with COST at time of registration and time of program in order for its employees to attend the 55th Annual Meeting at the member/partner rate.  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 2024 55th Annual Meeting/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.


September’s average high in St. Louis is upper 70’s and the average low is in the 60’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]