Thursday will be the last day that people will be able to buy most paper tickets for NSW's public transport system, and commuters are being urged to get electronic Opal cards.

As of January 1, 2016, popular paper tickets such as the TravelTen bus pass, MyMulti Weekly and Pensioner Excursion tickets will no longer be sold.

Single and return paper tickets will continue to be sold.

Transport Minister Andrew Constance reminded all those without an Opal card to make the transition as soon as possible.