Your Elite Chickens have the ability to claim a percentage of EGG from all player withdrawal fees and a percentage of EGG spent on in-game packs, in addition to their regular skills.
To claim Elite Tax, first send your Elite Chicken on a mission to the Wishbone Woods.
Be careful, though - if you try to claim Elite Tax while your Chicken is not in the Wishbone Woods, or if it is close to exiting, there will be a 12-hour cooldown.
Make sure to plan ahead and time your claims carefully.
Your Class 1 Elite Chickens can claim more Taxes than your Class 2.