"Has your MetroCard expired?...every MetroCard has an expiration date. The date is located at the upper left corner on the back of the card. The expiration date is usually about one year from the date of purchase...you have two years from the expiration date to transfer any remaining money to a new card. Within the first year after expiration, bring your expired card to any subway station and ask the agent to make the transfer. After that time, the expired MetroCard must be sent to MetroCard customer claims. Ask the station agent for a postage-paid Business Reply Envelope: MetroCard Customer Claims 2 Broadway Room D11.03 New York, NY 10004" SOURCE http://webcache.googleusercontent.com/search?q=cache:FT7e4tYNMsoJ:www.mta.in fo/metrocard/problems.htm+nyc+expired+metrocards&cd=1&hl=en&ct=clnk&gl=us