Buddhism vs Hinduism: Differences & Shared Roots

By Tim Yu · Updated 2026-06-04

Buddhism and Hinduism grew from the same ancient Indian soil and share a great deal — karma, dharma, samsara, rebirth, meditation, and the goal of liberation. But they differ at the root. Hinduism affirms an eternal self (atman) ultimately one with the absolute (brahman) and reveres the Vedas; Buddhism denies a permanent self (anatta) and rejects Vedic authority.

The short answer

The two traditions are cousins, not twins. Both arose in ancient India and share much of the same religious grammar: rebirth, karma, samsara (the cycle of death and rebirth), the ideal of liberation from that cycle, and disciplines of renunciation and meditation. Their sharpest difference is over the self: Hindu thought affirms an eternal self (atman) that is ultimately identical with the absolute (brahman), whereas Buddhism teaches anatta — that there is no permanent, unchanging self anywhere. They also part ways over scripture (Hinduism accepts the authority of the Vedas; Buddhism, classed as “heterodox,” does not), over God (much of Hinduism is theistic; Buddhism is non-theistic), over a founder (Buddhism has the historical Buddha; Hinduism has none), and over the precise nature of liberation (moksha versus nirvana). The honest summary: profound shared vocabulary, genuinely different conclusions. (Unfamiliar terms are in the glossary.)

In more depth

Shared roots: the common soil of ancient India

Buddhism did not appear from nowhere. The Buddha, whom Encyclopaedia Britannica places “in northern India between the mid-6th and mid-4th centuries bce,” was born into the Vedic and Brahmanical religious world of the Ganges plain, amid a wider movement of wandering ascetics (śramaṇas) all wrestling with the same questions of suffering, rebirth, and release. It is no surprise, then, that the two traditions share so much of their core vocabulary:

• Karma — action and its moral consequences.
• Samsara — the beginningless round of birth, death, and rebirth.
• Rebirth — that beings are reborn life after life according to their deeds.
• Dharma — a central (if differently defined) term in both.
• Liberation — the shared conviction that the highest goal is freedom from the cycle.
• Meditation and renunciation — contemplative and ascetic disciplines as the means.

So deep is this overlap that some early Western observers mistook Buddhism for a mere reform sect of Hinduism. That is an error, as we will see — but the family resemblance is real, and it is the necessary starting point for any honest comparison.

A note on comparing them fairly

Before drawing contrasts, one caution is essential. Hinduism is not a single thing. Britannica describes it as “a rich cumulative tradition of texts and practices, some of which date to the 2nd millennium bce or possibly earlier” — with no single founder and no one creed, spanning everything from abstract philosophical monism to fervent devotional theism to local village practice. Buddhism, too, ranges widely, from Theravada to Zen to Vajrayana. So every contrast below describes a broad tendency, not an exceptionless law. With traditions this vast and varied, there are always exceptions — and we name the mainstream, not the whole.

The deepest difference: the self (atman vs anatta)

If there is a single doctrine that divides the two traditions, it is the question of the self.

In Hindu thought — above all in the Upanishads and the Vedanta that grew from them — the innermost reality of a person is the atman, the eternal self. Britannica’s definition is precise: the atman is “the universal self, identical with the eternal core of the personality that after death either transmigrates to a new life or attains release (moksha) from the bonds of existence.” And crucially, “Atman is part of the universal brahman, with which it can commune or even fuse.” This is the celebrated vision summed up in the Upanishadic formula tat tvam asi — “that thou art”: your deepest self and the absolute ground of all reality are, at the last, one.

Buddhism denies exactly this. Its teaching of anatta (Sanskrit anatman, “non-self”) — one of the three marks of existence — holds that nowhere in or behind a person is there any permanent, unchanging self or soul to be found. What we call “I” is a flowing, conditioned process, conventionally described as five aggregates (form, feeling, perception, mental formations, and consciousness) in constant change. Where Hinduism finds an eternal self that is the absolute, Buddhism finds no abiding self at all. This is the sharpest philosophical fault line between them — and it shapes everything else, including what they each think liberation actually frees. (Buddhism’s later idea of buddha-nature can sound self-like, but it is generally understood through the same lens of emptiness, not as a hidden eternal soul.)

God and the absolute

The two traditions also tend to differ over ultimate reality. Most forms of Hinduism affirm a supreme reality — brahman, the absolute ground of being — and a vast pantheon of gods, and much of lived Hinduism is devotional theism, centred on a personal supreme deity such as Vishnu or Shiva, often understood as creator and lord. (Hindu philosophy is itself diverse here, ranging from this devotional theism to highly abstract, near-impersonal conceptions of brahman.)

Buddhism, by contrast, is non-theistic. It posits no creator God and does not make liberation depend on divine grace. It is not simply “atheist” — its cosmos teems with gods (devas) — but those gods are themselves long-lived, fortunate, unenlightened beings still caught in samsara, subject to karma and rebirth like everyone else. They are fellow travellers, not creators or saviours. Where much of Hinduism looks up to a divine absolute, Buddhism locates both the cause of suffering and the path out of it in the mind.

Scripture and authority: the Vedas

The two traditions’ formal dividing line, in classical Indian terms, is scriptural authority. Britannica’s survey of Indian philosophy draws the boundary plainly: “Acceptance of the authority of the Vedas characterizes all the orthodox (astika) systems—but not the unorthodox (nastika) systems, such as Charvaka (radical materialism), Buddhism, and Jainism.” The orthodox schools — Britannica lists “the Nyaya, Vaisheshika, Samkhya, Yoga, Purva-Mimamsa (or Mimamsa), and Vedanta schools” — all revere the Vedas as authoritative revelation. Buddhism does not.

This is decisive. Buddhism rests its authority not on the Vedas but on the Buddha’s own awakening and the discourses that flow from it — a teaching to be tested in experience rather than received as Vedic revelation. Precisely because it sets the Vedas aside, the Indian tradition has always classed Buddhism (with Jainism) as heterodox, nastika — outside the Vedic fold. That single fact is why Buddhism, for all its shared vocabulary, cannot rightly be called a branch of Hinduism.

Liberation: moksha vs nirvana

Both traditions agree that the highest goal is liberation from samsara — but they picture it differently. Britannica defines the Hindu goal cleanly: “moksha, in Indian philosophy and religion, liberation from the cycle of death and rebirth (samsara) … the term moksha literally means freedom from samsara.” In its most influential (Vedantic) interpretation, moksha is the self’s realization of its identity with brahman — the drop returning to, or recognising itself as, the ocean.

Buddhist nirvana shares the same point of departure — the end of the round of rebirth — but not the same destination. Nirvana is described as the extinguishing of the fires of greed, hatred, and delusion, the cessation of craving, the unconditioned peace beyond samsara. It is emphatically not the union of an eternal self with an absolute, because Buddhism denies that any such self exists to be united. So even the shared aspiration to “liberation” resolves, on inspection, into two different freedoms: a self realizing its oneness with the absolute, or the going-out of the very fires that kept a selfless process burning.

A founder, and the question of caste

Two further differences are worth naming. First, Buddhism has a founder and Hinduism does not. Buddhism traces to a specific historical teacher, the Buddha; Hinduism, in Britannica’s words “a rich cumulative tradition,” grew over millennia with no founding figure at all.

Second, the two have historically related differently to caste. Orthodox Brahmanical society was ordered by varna, the hierarchical caste system. The Buddha, by contrast, opened his monastic community to people of every social rank and taught that true nobility is a matter of conduct rather than birth — a real point of friction with the Brahmanical order of his day. (Lived Buddhist societies have not always been free of social hierarchy, but the principle set down at the start was strikingly open.)

A quick side-by-side

So how related are they, really?

The fairest verdict is that Buddhism and Hinduism are close cousins from one family, not the same religion. Buddhism arose within the religious world of ancient India and speaks much of its language — karma, samsara, rebirth, liberation — which is exactly why the two can look so similar from outside. But Buddhism is not a sect of Hinduism: it rejects the Vedas, denies the eternal self that Hindu thought holds dear, follows its own founder, and aims at its own conception of the goal. The deep shared vocabulary and the deep doctrinal differences are both real, and an honest comparison has to hold them together rather than collapse one into the other. (For a comparison across a far wider gulf, see Buddhism vs Christianity.)

There is a final historical irony worth noting: although Buddhism was born in India, it later faded as a living tradition across most of the subcontinent, even as it flourished abroad — partly as resurgent Hindu traditions reabsorbed some of its energy and ideas. (That larger story is told in how Buddhism spread.) For the broader question of how Buddhism fits among the world’s traditions, see is Buddhism a religion or a philosophy; for the teachings at the heart of all this, the core teachings of Buddhism.