How to Challenge a Will With Cryptocurrency

Cryptocurrency has become an increasingly significant part of many personal estates in England and Wales. When someone dies owning digital currencies such as Bitcoin, Ethereum or other crypto‑tokens, those assets can form part of their estate and be dealt with in their will. However, the unique nature of cryptocurrencies - which exist only on digital ledgers and require specific access credentials - can make will disputes involving these assets more complex than traditional inheritance issues. This article explains how cryptocurrency is treated in wills and probate, the legal grounds and processes for challenging a will where crypto is involved, practical steps to take, key time limits, and common questions that arise in such cases.

Cryptocurrencies are now legally recognised as personal property under UK law, meaning they can be included in a will and treated like other estate assets. However, the practicalities of access and transfer raise additional challenges for executors, beneficiaries and anyone seeking to challenge a will.

What Cryptocurrency Means in the Context of Wills

Cryptocurrency is a form of digital asset stored in a digital wallet and secured by private keys. It has no physical form but can have significant monetary value. Since the enactment of the Property (Digital Assets etc) Act 2025, cryptocurrencies and similar digital assets have statutory recognition as personal property, capable of being inherited, transferred or recovered in legal contexts just like traditional assets.

A will can direct how cryptocurrency should be distributed after death, but there are practical issues to consider:

• Cryptocurrencies are held in digital wallets, often protected by private keys and passwords that are not publicly available.
• If executors or beneficiaries cannot access the wallet or private key, the crypto may be unrecoverable, even if bequeathed in a will.
• Private keys should not be included in the will itself, because wills become public record on probate, which could expose sensitive information.

These factors can give rise to disputes and challenges if ownership, access, valuation or distribution is unclear or contested.

Legal Grounds for Challenging a Will Involving Cryptocurrency

The legal grounds for challenging a will that includes cryptocurrency are largely the same as for any will dispute in England and Wales, but the presence of crypto assets can accentuate those issues or create practical triggers for dispute.

1. Challenging Validity of the Will

A will can be contested on traditional legal grounds, including:

• Lack of testamentary capacity: Arguing that the deceased did not understand the nature and effect of the will when it was made.
• Lack of knowledge and approval: Claiming the deceased did not know or approve the terms of the will, including provisions relating to crypto assets.
• Undue influence: Asserting that the deceased was pressured by another person into making or altering the will.
• Improper execution: A will must be in writing and properly witnessed to be valid; failure in execution can be a basis for challenge.
• Fraud or forgery: Allegations that the will or signatures are not genuine.

If a will is found invalid, it may be treated as never having existed, and the estate could pass under earlier wills or under the intestacy rules.

2. Inheritance (Provision for Family and Dependants) Act 1975 Claims

Even if the will is valid, eligible persons (such as spouses, children or dependants) may claim that the will does not make reasonable financial provision for them. Crypto holdings form part of the deceased's estate valuation for these purposes, and such a claim could involve arguing that insufficient provision has been made from all assets, including cryptocurrency.

3. Claims Relating to Access and Disclosure

While not a separate legal ground for challenging validity, disputes frequently arise over whether executors have been given proper authority or guidance to access cryptocurrency. Failure to include clear instructions or to appoint an executor capable of managing digital assets can lead to disagreements that then feed into broader challenges or claims for rectification.

Practical Steps in Challenging a Will With Cryptocurrency

Step 1: Identify the Cryptocurrency and Access Details

To challenge a will effectively, you must first understand the nature and location of the cryptocurrency holdings. This involves:

• Identifying all wallets, exchanges, and platforms where the crypto was held.
• Determining whether private keys, recovery phrases or access credentials exist and who holds them.
• Reviewing the will for any clauses relating to digital assets or specific instructions.

Cryptocurrency access information may not be in the will itself but could be referenced in a separate secure document or “letter of wishes” intended for executors.

Step 2: Establish Standing and Grounds for Challenge

Only individuals with a legal interest in the estate - such as beneficiaries, dependants or potential intestacy heirs - can challenge the will. You must identify:

• Whether you are named in the will or would benefit under intestacy.
• Whether you have a valid legal basis for challenge (such as those listed above).
• Whether the estate includes significant crypto value that affects the distribution you expect to receive.

Step 3: Preserve Your Position Promptly

Under English law, certain claims against a will are time‑sensitive. For example, challenges must generally be brought within six months of the Grant of Probate being issued. If you intend to challenge before probate is granted, you can enter a caveat at the Probate Registry to prevent the grant being issued without notice.

Because missing access instructions can effectively “lose” the cryptocurrency, acting promptly to secure evidence, communications and access materials is essential.

Step 4: Gather Evidence

In addition to the will, relevant evidence may include:

• Crypto account records, transaction histories, and wallet addresses.
• Correspondence about the testator's intentions for their cryptocurrency.
• Technical evidence of access credentials or digital inventories.
• Expert valuation evidence, since crypto values can be volatile.

Clear evidence showing ownership, intention and access rights helps support challenges or claims for variation.

Step 5: Seek Specialist Legal and Technical Advice

Due to the technical nature of cryptocurrency and rapidly evolving legal recognition, expert advice from solicitors experienced in contentious probate and digital asset management is important. Technical experts may also assist with locating wallets, extracting data and confirming ownership.

Step 6: Consider Alternative Dispute Resolution

If disputes over the handling of crypto assets arise, parties may consider mediation or negotiation to resolve issues without full court proceedings. This can save time and costs while preserving relationships.

Step 7: Commence Court Proceedings if Necessary

If informal resolution fails, formal litigation may be required. Challenges to validity or Inheritance Act claims are generally brought in the Chancery Division of the High Court or appropriate county court. The court will assess legal grounds, evidence and the impact on estate distribution.

Time Limits and Procedural Considerations

• Inheritance Act claims must generally be brought within six months of the Grant of Probate.
• There is no fixed statutory deadline for all validity challenges, but delay can undermine evidence and weaken a case.
• Prompt action is especially important where digital assets are at risk of loss due to inaccessible credentials.

Risks and Challenges

Difficulty of Access

Cryptocurrencies cannot be accessed without private keys or recovery phrases. If these are lost, the assets may be permanently inaccessible, regardless of the will's provisions.

Privacy and Public Record

Wills become public once probate is granted, meaning terms may be accessible to anyone. This raises considerations about what information to include in a will and what to store separately for privacy and security.

Valuation Volatility

The value of cryptocurrency can fluctuate markedly, affecting estate valuation, Inheritance Tax calculation, and equitable claims. Executors may need professional valuation evidence to satisfy HMRC and court requirements.

Technical Complexity

Digital wallets, exchanges, multi‑signature arrangements and decentralised platforms can complicate identification and retrieval of assets. Technical expertise may be necessary to trace and recover holdings.

Common Questions

Can I challenge a will just because the crypto was left inadequately?
A challenge must be based on recognised legal grounds (e.g. invalidity or inadequate provision under the Inheritance Act), not solely on dissatisfaction at how digital assets are treated.

What happens if the private key is lost?
If private keys or recovery information are lost, the crypto cannot be accessed, and it may be irretrievably lost - even if the will expresses an intention to pass it on. Executors and owners should plan for secure but accessible storage of access credentials.

Is cryptocurrency subject to Inheritance Tax?
Yes. Cryptocurrency is part of the estate and must be valued at the date of death for Inheritance Tax purposes. Volatility can make valuation complex, and professional guidance may be required.

Key Takeaways

Challenging a will that includes cryptocurrency in England and Wales involves both established probate law and modern digital asset considerations. Cryptocurrencies are now recognised as personal property and can be bequeathed, but access, valuation and distribution raise particular challenges. Grounds for challenge include traditional validity issues and statutory claims for reasonable provision. Effective action requires early identification of crypto assets and access details, clear evidence, timely procedural steps and specialist legal and technical support. Given the ongoing growth of crypto holdings, understanding these issues is critical for executors, beneficiaries and anyone affected by a will dispute involving digital currency.