Place chicken breasts in a multi-functional cooker (such as Instant Pot). Sprinkle all sides with taco seasoning. Pour salsa and chicken broth on top.

Close and lock the lid. Select Poultry setting; set the timer for 15 minutes. Allow 10 to 15 minutes for pressure to build.

Release pressure using the natural-release method according to manufacturer’s instructions, about 20 minutes. Unlock and remove the lid.

Shred chicken and serve as desired.