JW Marriott Washington DC
1331 Pennsylvania Avenue, NW
Washington, DC  20004
(202) 393-2000

The JW Marriott is 7 miles from Ronald Reagan Washington National Airport, 24 miles from Washington Dulles International Airport and 34 miles from Baltimore/Washington International Thurgood Marshall Airport. It is also conveniently accessible by train via the Washington Union Station.

If local to the DC area, the nearest subway stop is Metro Center, 13th Street exit.


The 50th Annual Meeting is tentatively scheduled to begin at 1:00 p.m. on Tuesday, October 22, 2019 and the meeting will conclude at 1:15 p.m. on Friday, October 25, 2019.

The goal of this program is to bring multistate tax professionals who have various levels of experience in state and local 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 level is an overview and no advanced preparation is needed.

Registration Fees:   

Cancellation Policy:

A $50 cancellation fee will be imposed for cancellations received on or before September 27th; cancellations after the 27th will not be refunded. For more information regarding COST’s complaint and refund policies, please email Karen Galdámez at kgaldamez@cost.org.

Hotel Reservations:

Our room block at the JW Marriott is sold out.  Below are close by hotels:

Sofitel – 202.730.8800
Willard – 202.628.9100
Marriott Metro Center – 202.737.2200

Continuing Education:

COST will assist you in applying for Continuing Education credit for the 2019 50th Annual Meeting. 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. This course is tentatively approved for 20 CPE hours. COST will assist in securing CLE credits with state bar associations. There are no prerequisites for this conference and the program level is intermediate.

Photo Permission:   

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