is an Indonesian digital wallet service.

The service was originally launched in 2007[1] by an Indonesian mobile operator Telkomsel as Telkomsel Cash, branded as TCASH.

It is developed by PT Fintek Karya Nusantara, a company owned by various state-owned companies; including Telkomsel – itself a subsidiary of Telkom Indonesia, state-owned banks (Bank Mandiri, BRI, BNI, and BTN), Pertamina, Jiwasraya, and Danareksa.

On March 26, 2020, LinkAja partnered with Telcoin, an instant, low-cost blockchain powered remittance service.

This partnership is set to explore cashless opportunities in LinkAjas area of operation.