Begin by placing the frozen chicken breasts into your Instant Pot.
Evenly sprinkle the taco seasoning over all sides of the chicken.
Next, pour the salsa and chicken broth over the seasoned chicken.
Securely close and lock the lid of the Instant Pot.
Select the Poultry setting and set the timer for 15 minutes.
Allow the pressure to build, which should take about 10 to 15 minutes.
Once the cooking time is complete, use the natural-release method to release the pressure, which will take approximately 20 minutes.
After the pressure has been released, unlock and remove the lid.
Shred the chicken and serve it as you like.