SmartLink is a RFID-enabled credit card-sized smartcard that is the primary fare payment method on the PATH transit system in Newark and Hudson County in New Jersey and Manhattan in New York City.

It was designed to replace PATH's paper-based farecard, QuickCard, and there was plans to expand its usage throughout most transit agencies in the tri-state area.

However, MetroCard Vending Machines (MVMs) at all PATH stations are able to refill the SmartLink cards to a monetary amount equal to 1, 2, 4, 10, 20 and 40 trips as well as the daily or 30 day unlimited passes.

As of November 1, 2019 the following fare structure is in effect: The maximum number of trips that can be loaded on the card is 140.

On July 2, 2007, the Port Authority of New York and New Jersey (PANYNJ) commenced the initial roll-out of the SmartLink card to the general public at the World Trade Center station.

In the initial stage, the SmartLink card allowed riders to place the same value on it as if they were purchasing a QuickCard by using machines located in PATH stations.

However, estimates for expanding the SmartLink card to the New York City Subway and MTA buses may cost as high as $300 million.

[9] In June 2019, the Port Authority announced it was in talks with the MTA to implement OMNY on the PATH by 2022.

[9] In November 2021, the Port Authority indicated that it would instead implement its own fare payment system, which would be similar to OMNY.

[13][14] The new fare payment system would be tested in a few stations in early 2023 before being installed across the network in the latter half of the year.