By S&S Co. Advocates & Solicitors · Published 30 September 2026 · Informational content, not legal advice: see our disclaimer
What a Codicil Is
A codicil is a supplementary document that amends, adds to, or partially revokes an existing Will, without replacing the entire document. It is executed as a separate instrument but is legally read together with the original Will as forming, in effect, part of the same overall testamentary disposition: the Indian Succession Act treats a codicil as an instrument made in relation to a Will and explaining, altering or adding to its dispositions. Codicils exist because testators periodically need to make changes to their Wills, and rewriting an entire, sometimes lengthy and carefully structured Will from scratch for a single small change is often unnecessary and, in some cases, riskier than making a narrowly targeted amendment.
What a Codicil Requires to Be Valid
A codicil must satisfy exactly the same formal execution requirements as a Will itself: it must be signed by the testator (or signed by someone else at the testator's direction and in their presence), and attested by at least two witnesses who each saw the testator sign (or acknowledge their signature) and then signed the codicil themselves in the testator's presence, under Section 63 of the Indian Succession Act. A codicil that fails to meet these formalities is no more valid than a defectively executed Will would be, and testators should not assume that because a codicil is often a shorter, simpler document, it can be executed less formally than the original Will: the law imposes exactly the same standard.
When a Codicil Is the Right Tool
A codicil works well for discrete, limited changes: updating a specific bequest (increasing or decreasing an amount, or changing a named beneficiary for one specific item); adding a new, relatively minor gift; replacing an executor who has since died or become unable to serve; or correcting a specific error or ambiguity identified in the original Will. Because a codicil operates by amending specific provisions while leaving the rest of the Will intact, it works most cleanly where the change is genuinely isolated and doesn't require reworking the overall structure or logic of the original document.
When a New Will Is the Better Choice
Where the intended changes are substantial: a significant restructuring of who inherits what, multiple unrelated changes accumulated over time, or a change in the testator's fundamental circumstances (marriage, divorce, the birth of additional children, a major change in the size or composition of the estate), executing an entirely new Will, expressly revoking all previous Wills and codicils, is generally the safer and clearer approach. Layering multiple codicils onto an original Will over many years can create real interpretive difficulty: later readers, including courts after the testator's death, have to reconcile the original Will with every codicil in the correct chronological order, and the more codicils accumulate, the greater the risk of an inconsistency, an ambiguity about which provision actually controls, or an inadvertent gap. As a rough practical guideline, one or perhaps two straightforward codicils to an otherwise sound and current Will is usually manageable; beyond that, or where the changes are substantial rather than incremental, a fresh Will is generally worth the additional effort.
Revoking or Amending a Codicil Itself
A codicil, once executed, can itself be revoked or amended by a further codicil or by the execution of a new Will, following the same formal requirements. Testators should keep a clear, organised record of the original Will together with every codicil that has been added to it, and should ensure that anyone who might need to locate these documents after the testator's death, an executor, a lawyer, a trusted family member, knows where the complete, current set is kept, since a codicil that exists but cannot be found after death defeats the purpose of having made it.
Practical Guidance
For a single, clearly isolated change to an otherwise satisfactory and current Will, a properly executed codicil is a legitimate and efficient tool. Where changes have accumulated, where the testator's circumstances have shifted substantially since the original Will, or where there is any doubt about how cleanly a proposed codicil will interact with the existing document, consulting a lawyer about whether a fresh Will would in fact be the more reliable route is worth the conversation before proceeding with another codicil.
Frequently Asked Questions
What is a codicil?
A supplementary document that amends, adds to, or partially revokes an existing Will without replacing the entire document, legally read together with the original Will as part of the same overall testamentary disposition.
Does a codicil need to be executed as formally as a Will?
Yes: exactly the same formalities apply under Section 63 of the Indian Succession Act: signature by the testator and attestation by at least two witnesses who saw the signing and signed the codicil themselves in the testator's presence.
When should someone use a codicil rather than write a new Will?
A codicil works well for discrete, limited changes, updating a specific bequest, replacing a deceased executor, or correcting a specific error, while leaving the rest of the Will's structure intact.
Why is it risky to keep adding multiple codicils to the same Will over many years?
Because reconciling the original Will with several codicils in the correct order becomes increasingly difficult, raising the risk of inconsistency, ambiguity about which provision controls, or an inadvertent gap: beyond one or two straightforward codicils, a fresh Will is generally safer.
Can a codicil itself be revoked?
Yes: a codicil can be revoked or amended by a further codicil or by executing a new Will, following the same formal execution requirements that applied to the original codicil.
References & Further Reading
This guide provides a general introduction to codicils. Whether a codicil or a fresh Will is more appropriate depends on the specific changes intended and the state of the existing document, and should be discussed with a lawyer for anything beyond a simple, isolated change.
- Indian Succession Act, 1925, Section 63: execution and attestation requirements applicable equally to a Will and a codicil.
- Indian Succession Act, 1925, Section 2(b): statutory definition of a codicil.