You're responsible for karma because actions condition your experience, not because a permanent self exists to judge you.
Buddhism teaches both that there is no permanent, unchanging self (the doctrine of anatta or anatman) and that you bear full responsibility for your actions and their consequences. This seems contradictory: how can karma bind you if there's no "you" to be bound? The answer lies in understanding what Buddhism actually means by both no-self and karma. The contradiction dissolves once we recognize that responsibility doesn't require a permanent entity any more than a wave needs to be permanent to cause damage.
The Buddha explicitly addressed this tension. In the Samyutta Nikaya, he taught that while there is no permanent self, karma and its fruits still operate dependably. The mechanism isn't mysterious judgment by some cosmic accountant, but rather a natural law of causation inherent to conditioned experience itself.
The Sanskrit word "karma" simply means action. Buddhist karma isn't about reward and punishment administered by a judge; it's about how actions naturally condition future experience. If you act with greed, hatred, or delusion, those mental patterns strengthen in you and shape your perception and behavior going forward. If you act with generosity, compassion, and wisdom, those qualities develop. This is impersonal causation, not moral judgment.
You don't need a permanent self for this to work. Consider a stream: it has no permanent essence, yet the shape of the land upstream determines how water flows downstream. Similarly, your actions now shape the conditions of your experience later. The effect is carried through the continuity of the process (consciousness and mental factors arising in dependence on conditions), not through some unchanging soul being rewarded or punished.
Responsibility in Buddhism attaches to the act itself, not to an eternal, unchanging subject. When you act, that action has built-in consequences—some immediate, some long-term. You're responsible because the action is yours and its consequences flow from it. But "yours" doesn't mean it belongs to some permanent entity; it means you are the one generating it through intention.
The Dhammapada states: "The self is the lord of the self. What other lord could there be?" This doesn't posit a permanent self; rather, it emphasizes that in the moment of acting, you alone are responsible for the direction your action takes. The Buddhist tradition across schools—Theravada, Mahayana, Tibetan—all maintain this view: responsibility is immediate and consequential, rooted in the intentionality of action rather than in metaphysical permanence.
Buddhism distinguishes between permanence and continuity. A river is not permanent—its water is always changing—yet it remains continuous. Similarly, the person you are tomorrow is not identical to who you are today, but there is causal continuity. Your karma plants seeds in this stream of becoming. You experience the results because there is an unbroken causal connection between the action and its fruit, carried through the ongoing process of your experience.
When karma ripens—whether in this life or future rebirths, depending on one's tradition—it ripens in the continuum that stands in causal relation to the original act. In Tibetan Buddhist terms, there is no permanent "owner" of karma, but karma sticks like burrs to wool because of the lawful connection between action and consequence.
This teaching has urgent practical consequences. Since you have no permanent self to protect, defending and purifying karma becomes your primary responsibility. You can't defer blame to destiny, God, or a permanent essence. You also can't escape consequences by claiming "there's no real me anyway." Many Buddhist teachers warn precisely against this misunderstanding.
The teaching liberates you by making change possible. Because there's no unchanging self, you're not condemned to be who you were. But equally, because there's real karmic continuity, your choices matter profoundly. This is why the Buddha urged his followers to "work out your own salvation with diligence." The no-self doctrine isn't an excuse for irresponsibility; it's the ground of both genuine responsibility and genuine hope for transformation.