Whenever you want to emphasize how simple something is, especially when others are overthinking it:
Era un funcionario corrupto y está pagando por todo lo que hizo. Así de fácil.
He was a corrupt official, and now he's paying for everything he did. It’s as simple as that.
— ¿Y solo tengo que llenar este formulario?
— ¡Sí, así de fácil!
— And I just have to fill out this form?
— Yep, it’s as easy as that!
You’ll often hear it when someone’s just finished explaining something super straightforward:
Tienes que ir a la casa, conseguir la llave y entregársela a tu papá. Así de fácil.
You just have to go home, grab the key, and give it to your dad. Simple as that.
No tienes que hacer cita ni nada. Llegas, pagas y ya. Así de fácil.
You don’t need an appointment or anything. Just show up, pay, and that’s it. It’s literally that simple.