Holding Crypto Assets in a Family Trust

Holding crypto assets in a trust means that the trustee, not the settlor, becomes the legal holder of the coins, tokens or other digital assets, and manages them for the beneficiaries under the trust deed. The idea is simple. The practice is not, because the person who controls the private key controls the asset, and a key can be lost, copied or taken without any court being involved.

This page looks at the practical side: who keeps the keys, how a trustee takes custody, what a family should record, and how a trust fits into bitcoin inheritance and wider digital assets succession. It is general information, not advice. The right answer depends on the assets, the family and the countries involved, and should be tested with an adviser.

Why families put crypto in a trust

Digital assets tend to concentrate in one person's hands. A single holder knows the wallet, the passphrase and the exchange login, and nobody else does. If that person dies or loses capacity, the value can become unreachable even though the family knows it exists.

A trust addresses this by separating control from personal ownership. Under the Trusts Act 2001, the assets are held by a trustee for identified beneficiaries or for a stated purpose. The trust continues when the person who created it is no longer able to act, which is the main reason families use it for crypto estate planning.

Three practical benefits are often mentioned:

• Continuity. A professional trustee does not die, retire or forget a passphrase in the way an individual holder might.
• Written rules. The deed and any letter of wishes say what the trustee may do with volatile assets, rather than leaving heirs to guess.
• Orderly transmission. Assets already held by the trustee are not left waiting for an heir to find a hardware device.

None of this removes risk. A trust does not make a wallet safer by itself, and it does not fix a key that was lost before the transfer.

Who actually holds the keys?

The central question is custody. In a trust, the legal title sits with the trustee, so the trustee must be able to exercise control. There are three common arrangements.

A settlor who keeps a private copy of the keys and spends from the wallet as before is a warning sign. If the settlor continues to treat the assets as personal, the trust may be questioned. The limits on retained control are discussed in how much control a settlor can keep and in the page on sham trusts.

The qualified trustee

Under Article 2 of the Trusts Act 2001, a "qualified trustee" is an FSC-licensed corporate service provider (Management Licence) or another person resident in Mauritius authorised by the Financial Services Commission (FSC) to provide trustee services. Article 28 limits a trust to 4 trustees at most, with at least 1 qualified trustee at all times. The Act adds that the trust does not become invalid or lapse merely because a trustee or a qualified trustee is missing.

For crypto, this matters in a specific way: the qualified trustee is the party that will be asked to demonstrate control, keep records and answer to the regulator. A trustee that has never handled digital assets should say so before the transfer, not after.

Moving crypto into the trust

The transfer is a legal step and a technical step. Both must be completed, and in the right order.

The last step is often forgotten. If the settlor's old seed phrase still works, there are two controllers, and the trustee is no longer the only holder in practice. The structure of the document itself is covered in what a trust deed contains.

Practical points for the deed

A deed that covers digital assets usually deals with the following, in plain terms:

• the trustee's power to hold, buy, sell and move digital assets, and to use a custodian;
• whether the trustee may keep concentrated or volatile holdings, or must diversify;
• who may give instructions on access, and how a lost device is replaced;
• how the trustee values the assets for accounts and reporting;
• what happens to forks, airdrops, staking rewards and similar events.

Some families add a letter of wishes to explain how they would like the trustee to approach long-term holding. A letter of wishes guides the trustee; it does not bind the trustee in the way the deed does.

Access keys and the succession problem

The hardest part of digital assets succession is that the law and the technology do not meet at the same point. A will says who should inherit. It does not say how to open a hardware wallet.

With a trust the position is clearer, because the assets are already in the trustee's name and under the trustee's control. When the settlor dies, the trustee continues to hold and apply the assets under the deed; the trustee does not need the settlor's estate to be wound up first for assets that were validly transferred. What happens at that moment is set out in what happens when the settlor dies, and the contrast with a testamentary route is in trust or will.

Two limits are worth keeping in mind:

• A trust only covers what was transferred into it. Coins left in a personal wallet or an exchange account in the settlor's name still fall into the estate.
• Under Article 8 of the Trusts Act 2001, a non-citizen settlor's transfer cannot be set aside under the succession rules of the settlor's domicile or nationality. That protection concerns the transfer to the trust; it does not make every claim in every country disappear, and it should be assessed with the family's specific situation in view.

A key-continuity record

The record below is the part families most often omit. It should exist, be stored separately from the keys, and be known to the trustee.

• Inventory of wallets, exchange accounts and custodians, with no secrets written in it
• Named trustee contact for each account, and a second person who can act if the first is unavailable
• Description of the recovery method for each wallet, kept apart from the recovery data itself
• Hardware devices located, labelled and stored where the trustee can reach them
• Settlor's old keys and logins revoked, with the date recorded
• Instructions for forks, staking and similar events agreed with the trustee
• Review date set, so the record is checked at least once a year

The yearly review fits naturally with the annual family trust review.

Where a protector can help

A trust may provide for a protector. Article 24 of the Trusts Act 2001 allows a protector, who can be an adult, including the settlor, or a legal person, to advise the trustee. Unless the deed says otherwise, a protector may remove and appoint trustees, set the governing law, change the place of administration and withhold consent to certain acts, without becoming a trustee.

For a crypto-heavy trust, the useful feature is a consent step. A deed can require the protector's approval before the trustee sells a large holding or changes custodian. That adds friction, which is the point, but it also adds a second person who must be reachable. The role is explained in the trust protector page.

Records, transparency and the bank

A trust holding digital assets is not invisible to regulators, and the family should plan for that.

• Trustee records. Article 38(3) of the Trusts Act 2001 requires the trustee to keep up-to-date accounts and documents, and an alphabetical register of the names and last known addresses of each beneficiary and settlor. Accounting records must be kept for at least 5 years after completion of the operations they relate to.
• FSC register. Under Article 26A of the Financial Services Act 2007, the FSC keeps a register of trusts that have at least one qualified trustee. It contains, among other things, the deed and the identity and addresses of the beneficiaries, trustees, settlors, protectors and enforcers. See whether there is a register of trusts.
• Beneficial ownership. Under the FIAMLA 2002, the beneficial owner of a trust-type arrangement includes the settlor, the trustee, any protector, each beneficiary (or the class of beneficiaries) and any other natural person with ultimate effective control.
• Dealing with a bank. Under Article 17C(5A) of the FIAMLA, a trustee of an express trust must disclose that status to a reporting person when forming a business relationship or carrying out an occasional transaction of at least Rs 500 000 or the foreign-currency equivalent.

Confidentiality exists but has limits. Under Article 33 of the Trusts Act 2001, as rewritten by Act 9/19, the trustee keeps information about the trust confidential, and a court orders disclosure only on the request of an investigating authority where the information is required in good faith for an investigation or proceedings relating to a financial crime. The broader picture is in are Mauritius trusts confidential?.

Knowingly giving false customer due diligence information is an offence under the FIAMLA, punishable by a fine of up to Rs 500 000 and imprisonment of up to 5 years. A family should therefore expect the trustee to ask for evidence of how the crypto assets were acquired.

Personal data and wallets

Custodians and trustees often hold personal data about the family. Under section 36 of the Data Protection Act 2017, a controller or processor may transfer personal data outside Mauritius, for example once it has given the Commissioner proof of appropriate safeguards, or with the explicit consent of the data subject after being informed of the risks. If the chosen custodian is abroad, ask where the data goes.

Tax and other topics, briefly

How a trust is taxed is not repeated here; the rules, and how they apply to distributions and transfers, are covered in how trusts are taxed in Mauritius. Whether a given token is treated as an investment, a payment instrument or something else, and who may lawfully provide services around it, are questions for a specialist adviser and are not settled by the trust itself.

A quick way to test the fit