CONTENTS
- 1. Testamentary Substitute Trust | Definition and Advantages

- - Can Be Systematically Designed From One's Lifetime
- - Trust Property Is Protected Separately
- - Retention of the Truster's Authority
- - Preventing Family Conflict
- 2. Testamentary Substitute Trust | Method of Proceeding and Required Documents

- - Trust Contract
- - Declaration of Trust (Self-Trust)
- - Assets That Can Be Placed in Trust
- 3. Will-Substitute Trust | Grounds and Methods for Terminating a Trust

- - Grounds for Termination of a Trust Under the Law
- - Termination by Agreement Between the Truster and the Beneficiary
- - Termination by Court Order
- 4. Will-Substitute Trust | Vesting of Property After Termination

- - Cases Where Property Vests in the Beneficiary
- - When Rights Are Waived
- - Cases of a Wrongful Trust Arrangement
- - The Trust Continues Until the Vesting Is Transferred
- 5. Will-Substitute Trust | Checklist

- - The Support System of Inheritance Attorneys
1. Testamentary Substitute Trust | Definition and Advantages

A testamentary substitute trust is, just as the name suggests, a living trust that performs a function like that of a will.
Instead of preparing a will in the ordinary way, it involves entering into a contract with a financial institution, such as a bank, a securities company, or a trust company, during one's lifetime to entrust property and design the succession procedure.
Accordingly, when the settlor (the person who entrusted the property, the decedent) dies, the property passes to the heirs according to the procedure.
Because it serves in place of a will, it is called a ‘testamentary substitute trust,’ and it offers the advantage of a stronger property protection function and flexible arrangements.
Settlor | The decedent |
Trustee | The financial institution handling the trust |
Beneficiary | The heir |
Can Be Systematically Designed From One's Lifetime
A will takes effect upon death, but a testamentary substitute trust allows the transfer of assets to be designed through a trust structure during one's lifetime.
Trust Property Is Protected Separately
Trust property is legally separated from the trustee's own property and managed apart from it.
Also, even if the trustee dies or goes bankrupt, the trust property remains safely protected.
Trust property is also protected from compulsory execution, disposition for default, and enforcement of security interests (Trust Act, Articles 22, 23, and 24).
Retention of the Truster's Authority
The truster may directly control the trust while holding various powers, such as the following.
▷ Removing and appointing the trustee
▷ Modifying and terminating the trust
▷ Inspecting trust affairs and requesting explanations
The right to change the beneficiary, however, is available only for trusts that fall under the following.
2. A trust in which the beneficiary receives benefits based on the trust property after the truster's death
Preventing Family Conflict
It can reduce disputes among heirs over a will, and by determining the distribution of property in advance, it can help prevent conflict within the family.
2. Testamentary Substitute Trust | Method of Proceeding and Required Documents

A testamentary substitute trust can be carried out in two ways: by a trust contract or by a declaration of trust.
Trust Contract
A testamentary substitute trust can be carried out by entering into a contract with a financial institution to entrust assets and design the succession procedure.
Banks, trust companies, and similar institutions offer various trust products, and you can compare them to find the product that fits your own situation.
You then submit the necessary documents to the financial institution and transfer the property to be placed in trust to that institution.
Once you designate the beneficiary and set the post-death management procedure, the trust contract takes effect, and the property is managed and operated according to the contract.
Documents Required for the Contract
Required | Personal real-name verification ID (resident registration card, driver's license) |
Certificate of non-existence of guardianship registration | |
Seal certificate, registered seal | |
Abstract of resident registration (including past records, all address change details) | |
Certificate of family relations (including content confirming the relationship between the settlor and successive beneficiaries) | |
Real Estate | ① Certificate of title (registration) |
② Local tax payment certificate | |
Unlisted Stock | ① Certified copy of the corporate register |
② Corporate business registration certificate | |
③ Corporate tax adjustment statement (the portion of the detailed statement of changes in shareholders and the like) | |
④ Shareholder register (most recent) | |
⑤ Certificate of non-issuance of share certificates | |
Monetary Claim (Insurance Claim Right) | ① Copy of the insurance policy |
② Copy of the insurance contract | |
③ One copy of a document proving that no loan against the insurance contract exists | |
If One Wishes to Contract Together With the Heir | Personal real-name verification ID |
※ The documents above may differ somewhat according to the internal regulations of the financial institution, and additional related materials may be requested.
Declaration of Trust (Self-Trust)
A declaration of trust, by contrast, allows the truster to carry out the procedure by personally becoming the trustee, without a financial institution.
To do this, the inheritance procedure must be designed, and a specific plan should be established for how the property will be managed and distributed through the trust.
At this stage, to secure legal effect, a declaration of trust and a notarial deed must be prepared, and once all procedures are completed, the declaration of trust takes effect.
Although a declaration of trust may in principle be made by the truster personally becoming the trustee without separately appointing one, it may be subject to limitations in registration practice or in its tax effect, so professional advice is needed.
Assets That Can Be Placed in Trust
Under the Financial Investment Services and Capital Markets Act, the property that may be entrusted in a money trust contracted with a financial institution is limited to the following seven categories. (Financial Investment Services and Capital Markets Act, Article 103)
2. Securities
3. Monetary claims
4. Movable property
5. Real estate
6. Surface rights, jeonse rights, real estate lease rights, claims for registration of transfer of real estate ownership, and other rights related to real estate
7. Intangible property rights
(including intellectual property rights)
In this regard, although the declaration-of-trust method is not directly subject to the restrictions under the Trust Business Act, for effective implementation it is generally composed of the assets listed above in practice.
3. Will-Substitute Trust | Grounds and Methods for Terminating a Trust
A will-substitute trust is generally designed to remain in effect until after the death of the truster, but it may be terminated when certain grounds arise, by agreement between the parties, or by a court's decision.
Accurately understanding the grounds and methods for termination is the key to preventing disputes after death.
Grounds for Termination of a Trust Under the Law
A trust is legally terminated where it falls under any one of the following (Trust Act, Article 98).
▷ Where the trust has been merged
▷ Where bankruptcy of the trust property has been declared in a limited-liability trust pursuant to Article 138 of the「Trust Act」
▷ Where a state in which no new trustee has assumed office after the trustee's duties ended has continued for one year
▷ Where a state in which no trust administrator has assumed office in a purpose trust has continued for one year
▷ Where a ground for termination set by the trust act has arisen
Termination by Agreement Between the Truster and the Beneficiary
The truster and the beneficiary may terminate the trust at any time by mutual agreement (Trust Act, Article 99).
The trust can therefore generally be terminated where the truster and the beneficiary consent together.
The trust cannot be terminated, however, where the truster does not exist.
Where the truster receives all of the trust benefits, the truster or the truster's heir may terminate it unilaterally.
If the trust agreement provides otherwise, however, that provision applies.
Termination by Court Order
Where special circumstances that were not foreseen at the time of the trust act arise, a petition for termination of the trust may be filed with the court (Trust Act, Article 100).
Parties Entitled to Petition | The truster, the trustee, or the beneficiary |
Requirements for Termination | Where continuing the trust would instead be contrary to the interest of the beneficiary |
4. Will-Substitute Trust | Vesting of Property After Termination

When a will-substitute trust is terminated, the remaining trust property is transferred to the beneficiary or the designated person entitled to the vesting, in accordance with the law and the trust agreement.
Clearly determining who the property vests in when designing the trust is central to preventing disputes after death.
Cases Where Property Vests in the Beneficiary
In the following cases, the trust property vests in the beneficiary.
▷ Where a state in which no new trustee has assumed office after the trustee's duties ended has continued for one year
▷ Where a state in which no trust administrator has assumed office in a purpose trust has continued for one year
▷ Where a ground for termination set by the trust act has arisen
▷ Where the trust has been terminated by agreement
▷ Where the trust has been terminated by court order
Where the trust act designates a person entitled to the vesting of the residual trust property, however, the property vests in that person entitled to the vesting (「Trust Act」 Article 101 (1)).
When Rights Are Waived
Where both the beneficiary and the person entitled to the vesting waive their rights to the residual property, that property vests in the truster or the truster's heir (Trust Act, Article 101 (2)).
Cases of a Wrongful Trust Arrangement
Where the truster set up the trust for a wrongful purpose, such as evading creditors or escaping execution, and the trust is consequently terminated by the court, the trust property vests in the truster (Trust Act, Article 101 (3)).
The Trust Continues Until the Vesting Is Transferred
Even if a trust has been terminated, it continues to be managed as trust property until the residual property is actually transferred to the person entitled to the vesting.
At this point, the person entitled to the vesting is deemed to temporarily hold the status of a beneficiary (Trust Act, Article 101 (4)).
This means that, in tax and registration practice, the property continues to be held in the name of the trustee until the transfer to the name of the person entitled to the vesting is completed, and the beneficiary of the residual property holds the same status to exercise rights as the former beneficiary.
5. Will-Substitute Trust | Checklist
When preparing a will-substitute trust, it is important to organize the trust purpose, the status of the assets, and the designation of the beneficiary in advance.
Because the documents and procedures to prepare vary depending on the trust method, careful planning is needed.
Category | Items to Prepare |
Setting the Trust Purpose | Clearly set the purpose of transferring property, the inheritance plan, the purpose of preventing disputes, and the like |
Confirming the Trust Property | Identify the type and scale of assets that can be placed in trust, such as money, real estate, and securities |
Designating the Beneficiary | Specifically designate the person (an heir, etc.) who will receive the property after death |
Choosing the Contract Method | Choose between a contract with a financial institution (trust agreement) or the self-trust method (declaration of trust) |
Preparing Documents | Identity verification documents, a certificate of seal impression, a real estate certificate of title, a family relationship certificate, and the like |
The Support System of Inheritance Attorneys
This law firm has many inheritance specialist attorneys registered with the Korean Bar Association, as well as specialist attorneys with an average of more than 10 years of experience.
Through tailored legal services that span the entire process, from trust design to contract advice, asset transfer, and post-death vesting, stable inheritance planning and support are possible.
If it is difficult to prepare the procedure on your own, you may wish to proceed more accurately and safely with the support of an inheritance attorney.
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