Inheritance Disclaimer and Renunciation Requirements in Delaware

At a glance

Requirements one by one

Governing law and covered interests

Delaware's governing statute is the Delaware Disclaimer Act, 12 Del. C. §§ 601-617. Delaware Code § 603 applies it to any interest in or power over property whenever created. The chapter separately addresses will and intestacy interests, testamentary and inter vivos trusts, beneficiary designations, jointly held property, and powers of appointment.

Whole, partial, and conditional disclaimer

Section 605 permits a whole or partial disclaimer despite a spendthrift or similar restriction. A partial form may use a fraction, percentage, term of years, limitation of a power, specific monetary value, or a lesser interest or estate. Chapter 6 does not separately authorize a conditional form.

Writing and required contents

Delaware requires a writing. Under § 605(c), it must declare the disclaimer and its extent and describe the interest or power. The general contents rule does not require an original, tax recital, affidavit, or legal description.

Signature and other execution formalities

Delaware has two signing routes. The disclaimant may sign personally without witnesses. Alternatively, another person may subscribe the disclaimant's name in the disclaimant's presence and at the disclaimant's express direction, but that act must occur in the presence of at least two people competent to witness a Delaware will.

Section 605 states no general acknowledgment, oath, or notarization requirement. Section 613 creates a real-property-only exception: the disclaimer must be acknowledged in the manner used for deeds.

State timing, irrevocability, and federal tax

The current Delaware Disclaimer Act has no fixed ordinary state-law deadline. Delaware Code § 616 expressly calls the prior nine-month Delaware rule the law “superseded by this chapter” and preserves only the transition treatment for interests existing in 2006. Section 601 merely names the Act; it is not a timing provision.

Under § 605(e), a disclaimer becomes irrevocable at the later of required delivery and statutory effectiveness for the relevant interest. 12 Del. C. § 615 recognizes a disclaimer or transfer treated under federal tax law as never transferred to the disclaimant. Federal qualification remains separate: 26 U.S.C. § 2518(b) supplies a nine-month receipt deadline, nonacceptance condition, and no-direction rule.

Delivery, filing, and recipient

Section 612 allows personal delivery, first-class mail, or another method likely to result in receipt. It borrows the federal timely-mailing rule and requires delivery to every person when two or more people jointly serve in the recipient role. The correct route depends on the asset:

• A will or intestacy disclaimer goes to the personal representative, if one serves, and also to the court in the county where estate administration began or could begin.
• A testamentary-trust disclaimer goes to the trustee or personal representative and also to that court.
• An inter vivos trust disclaimer goes to the trustee or court fallback; before the trust becomes irrevocable, it also goes to the settlor or transferor under the route stated in subsection (d).
• Before a beneficiary designation becomes irrevocable, delivery goes to the person who made it. Afterward, personal property goes to the distribution obligor, while real property uses the recording route below.
• A survivorship disclaimer goes to every person who takes because of it.
• Power-of-appointment interests use the holder, fiduciary, estate-representative, or court routes stated in the section.

Court delivery may be completed by filing with the register of wills or register in chancery for the county when the statutory administration condition is met.

Real-property recording

Delaware has overlapping real-property rules. Section 612(f)(2) makes county-recorder recording the delivery route for real property under an already irrevocable beneficiary designation. Section 613 applies to any disclaimed real-property interest: the document must be acknowledged like a deed, and the original or an attested copy must be recorded to make the disclaimer valid against anyone other than the beneficiary, the beneficiary's heirs and devisees, and people with actual notice.

Acceptance, transfers, and statutory bars

A written waiver bars the right. Section 614 also bars an interest disclaimer if, before effectiveness, the disclaimant accepts the interest; voluntarily assigns, conveys, encumbers, pledges, transfers, or contracts to transfer it; or a judicial sale occurs. Another law can also bar or limit the disclaimer. Chapter 6 states no express insolvency or general creditor-claim bar.

A barred disclaimer of an interest operates as a transfer to the people who would have taken under Chapter 6 had it not been barred. A barred disclaimer of a power is ineffective.

Effective time and destination

For an interest created by an instrument, § 606 makes the disclaimer effective when the instrument becomes irrevocable. For intestacy, effectiveness begins at death. An express disclaimer-destination clause controls. Without one, an individual generally is treated as dying immediately before distribution; a nonindividual is treated as not existing. Delaware preserves a descendant-by-representation rule and prevents the disclaimant's retained future interest from accelerating.

What trips people up

Delaware's former state nine-month rule is obsolete. Section 616 identifies it as superseded law. The current nine-month issue is the separate federal qualified- disclaimer rule, not an ordinary Delaware validity clock.

Execution depends on who physically signs. A self-signing disclaimant needs no witness under § 605(c)(4)a. The two-witness requirement applies only when another person signs the disclaimant's name through the directed-signature route.

Common questions

Does every Delaware disclaimer need a notary? No. Acknowledgment is required under § 613 when the disclaimed interest is real property; § 605 does not impose it on every disclaimer.

Does ordinary first-class mail qualify? Yes. Section 612 expressly permits first- class mail and also contains a timely-mailing rule tied to federal § 7502 standards.

Statutes and sources

• 12 Del. C. §§ 601, 603, 605 — Act title and scope, whole and partial form, writing, contents, signing routes, irrevocability, and nontransfer treatment. https://delcode.delaware.gov/title12/c006/index.html (accessed 2026-08-01)
• 12 Del. C. § 612 — delivery methods, all-co-recipient rule, asset-specific recipients, court filing, and mandatory beneficiary-designation realty recording. https://delcode.delaware.gov/title12/c006/index.html (accessed 2026-08-01)
• 12 Del. C. § 613 — real-property acknowledgment and recording effect against people without actual notice. https://delcode.delaware.gov/title12/c006/index.html (accessed 2026-08-01)
• 12 Del. C. § 614 — waiver, acceptance, transfer, judicial-sale, and other-law bars and transfer treatment for a barred interest disclaimer. https://delcode.delaware.gov/title12/c006/index.html (accessed 2026-08-01)
• 12 Del. C. §§ 615-616 — federal tax-qualified recognition and confirmation that the former Delaware nine-month rule was superseded in 2006. https://delcode.delaware.gov/title12/c006/index.html (accessed 2026-08-01)
• 12 Del. C. § 606 — effective time and destination, including descendant and future- interest rules. https://delcode.delaware.gov/title12/c006/index.html (accessed 2026-08-01)
• 26 U.S.C. § 2518(b) — separate federal qualified-disclaimer requirements. https://www.govinfo.gov/content/pkg/USCODE-2024-title26/html/USCODE-2024-title26-subtitleB-chap12-subchapB-sec2518.htm (accessed 2026-08-01)