Prenup clauses that protect digital assets, crypto and intellectual property

Digital assets, cryptocurrencies and intellectual property now form a significant part of many people’s wealth. Traditional prenuptial agreements must evolve to capture these modern assets precisely and practically. In England and Wales courts pay attention to the clarity of agreements, the quality of financial disclosure and whether spouses received independent legal advice. This guide explains which prenup clauses protect digital assets, crypto and intellectual property, how to draft them, valuation and tax considerations and practical steps to strengthen enforceability.

Why include digital assets crypto and IP in a prenup

Digital assets and IP can represent substantial present and future value. Without clear contractual terms you risk disputes about ownership, control and valuation on divorce. Courts will treat these assets as part of the financial pool if parties cannot show otherwise. A prenup that expressly addresses digital property reduces uncertainty, protects business continuity and preserves legacy value such as royalties or licensing income.

Define the scope: what counts as digital assets, crypto and IP

Start with precise definitions. Define terms to avoid ambiguity and attach schedules that list specific assets.

Suggested definitions to include in the prenup:

– Digital assets: usernames passwords digital wallets private keys domain names social media accounts email accounts virtual property online subscriptions and digital content such as photographs videos or blog posts where an economic value exists.  

– Cryptocurrencies: all forms of crypto tokens stablecoins and digital currencies held on exchanges in self‑custody wallets or through custodial services plus related private keys recovery seeds and smart contract positions.  

– Intellectual property (IP): registered and unregistered rights including patents trade marks design rights registered designs copyright moral rights database rights and domain name registrations plus rights to royalties and licence agreements.

Attach a schedule that itemises each known asset with identifying details such as wallet addresses domain registration numbers company registrations and registration numbers for patents and trade marks.

Ownership and classification clauses

State which assets count as separate property and which as matrimonial property. Use clear rules for classification to avoid later disputes.

Example approaches:

– Separate property: list digital assets, crypto holdings and IP owned before the marriage and any assets received by way of gift or inheritance expressly designated as separate. Require written consent before converting separate assets into joint property.  

– Matrimonial property: specify assets acquired after marriage or assets whose proceeds are used for joint living may become matrimonial property. Set out rules for part sharing where only a portion of an asset becomes matrimonial, for example where one partner invests marital funds into a crypto wallet originally funded pre‑marriage.

Private keys custody, access and redundancy clauses for crypto

Cryptocurrencies depend on control of private keys and recovery seeds. Address custody and contingency in detail.

Key clauses to include:

– Custody arrangements: state whether private keys remain with the owner in self‑custody or whether parties will use a multi‑signatory arrangement or custodial service. Record the physical or digital location of keys and recovery phrases.  

– Access protocol: set processes for emergency access including designated trusted persons or lawyers, verified procedures for access requests and requirements for notification.  

– Backup and redundancy: require secure backups such as hardware wallet duplicates held in escrow with a solicitor or secure vault and set encryption and storage standards.  

– Transfer and disposal rules: set conditions for transferring crypto during the marriage such as joint consent thresholds or independent valuation where a transfer affects matrimonial sharing.  

– Security obligations: require both parties to follow agreed security practices including two factor authentication hardware wallets cold storage and changes to password management.

Record‑keeping, disclosure and verification clauses

Require ongoing disclosure and a clear audit trail for digital and crypto assets.

Useful drafting points:

– Schedule updates: mandate periodic updates to the digital asset schedule and immediate disclosure of significant acquisitions disposals or transfers.  

– Documentary proof: require exportable transaction histories wallet statements blockchain explorer links or exchange account statements to evidence holdings. Where exchanges freeze accounts, require parties to volunteer correspondence with the platform.  

– Verification experts: allow either party to appoint an independent blockchain forensic accountant to verify balances and transaction histories at the parties’ shared cost unless fraud or concealment is found.

Valuation clauses for crypto, digital businesses and IP

Valuing volatile crypto holdings and intangible IP presents challenges. Set objective valuation mechanisms.

Valuation techniques to specify:

– Crypto valuation: tie valuation to an agreed exchange rate source and a specific date such as the date of separation or a rolling average over a defined period to smooth volatility. Specify acceptable exchanges or converted fiat currencies.  

– Digital businesses and domains: use earnings multiples discounted cash flow or comparable‑transaction methods. Appoint independent valuers experienced in digital businesses.  

– IP valuation: use licence income forecasting, relief from royalty or market comparables depending on data availability. If royalty income exists, capitalise projected income using accepted discount rates.

Include a tie‑breaker mechanism to resolve valuation disputes such as appointing a third valuer if two appointed experts disagree beyond an agreed threshold.

Treatment of revenue streams, licences and royalties

Digital assets and IP often produce ongoing income. Address treatment of revenue flows.

Points to cover:

– income allocation: specify whether future licence fees, ad revenue affiliate payments or royalties will be separate or shared and how to calculate net income after expenses and taxes.  

– reinvestment rules: set rules on reinvestment of revenue into businesses or crypto holdings and whether reinvested amounts affect the asset’s classification.  

– licensing agreements: include clauses determining consent rights for commercially exploiting registered IP during the marriage and on divorce.

Intellectual property ownership and assignment clauses

Clarify ownership of creations made during the marriage and any moral rights issues.

Drafting options:

– pre‑marriage IP: confirm registered IP and its ownership remains separate property unless a written assignment occurs.  

– future creations: decide whether IP created during marriage using marital resources becomes joint property or remains the creator’s separate asset. Consider hybrid rules that grant the non‑creator spouse compensation for indirect contributions.  

– assignment and licensing: allow for assignment or exclusive licence on agreed terms post‑divorce to preserve business continuity and protect commercial value.

Tax, trusts and corporate structures

Consider tax implications and protective structures that preserve value while respecting legal fairness.

Practical steps:

– tax planning: obtain tax advice on capital gains tax, income tax VAT or inheritance tax consequences of transfers, licences or trust settlements.  

– family investment vehicles: consider family investment companies or trusts for significant digital businesses or IP to ring‑fence assets and impose transfer restrictions consistent with the prenup. Ensure any structure does not create avoidance risks.  

– Trustees and fiduciaries: if you use trusts to hold assets for children or beneficiaries name independent trustees and set distribution triggers tied to education milestones or age.

Confidentiality and data protection clauses

Digital and IP assets often involve sensitive data. Protect confidentiality and comply with data protection laws.

Include:

– confidentiality obligations: prohibit disclosure of passwords, private keys source code or commercially sensitive data except under defined processes.  

– data protection compliance: require both parties to comply with GDPR and relevant data laws when handling personal data related to digital businesses and to appoint a data protection officer where necessary.  

– non‑disparagement and reputational protection: include measured non‑disparagement clauses to protect online reputation and business goodwill during disputes.

Dispute resolution, interim measures and emergency powers

Plan how to resolve disputes and who controls assets during litigation.

Clauses to consider:

– dispute resolution ladder: require negotiation, mediation then arbitration for financial disputes unrelated to child welfare. For urgent injunctions allow court access.  

– interim control: set temporary governance such as freezing transfers from listed wallets or appointing an independent custodian pending resolution.  

– emergency access: provide a clear carve‑out allowing a solicitor or trusted custodian to act if fraud, theft or urgent creditor action threatens assets.

Drafting practicalities and enforceability tips

– start with schedules: list assets with identifiers such as wallet addresses domain names and registration numbers to avoid ambiguity.  

– keep disclosure current: update schedules after major acquisitions sales or when custody arrangements change.  

– obtain specialist advice: work with blockchain forensic accountants IP valuers tax advisers and family law solicitors experienced in digital assets.  

– secure independent legal advice: ensure both parties receive separate advice and include solicitor certificates in the agreement.  

– avoid absolute bans: courts favour fair, flexible arrangements. Provide for reasonable provision for the other spouse to avoid claims of unfairness.

Checklist for prenup clauses protecting digital assets, crypto and IP

– precise definitions and asset schedules with identifying details  

– custody and access rules for private keys and recovery seeds  

– backup, escrow or multi‑sig arrangements for crypto security  

– disclosure obligations and documentary proof requirements  

– valuation methods for crypto digital businesses and IP with tie‑breaker rules  

– revenue allocation and reinvestment rules for ongoing income streams  

– IP ownership assignment and licensing clauses and moral rights considerations  

– tax, trust and corporate structure planning and trustee appointments  

– confidentiality, data protection and non‑disparagement clauses  

– dispute resolution ladder interim control and emergency powers  

– review triggers and mechanisms to update the schedule and valuations

Conclusion

Digital assets, cryptocurrencies and intellectual property demand precise, forward looking prenup clauses. Address custody, access, valuation and revenue treatment explicitly and attach detailed schedules. Use independent experts for valuations and tax modelling and obtain separate legal advice for each party. Draft fair, adaptable clauses that protect commercial value while preserving reasonable provision for the other spouse. With careful planning and specialist input you can create a prenup that protects modern assets effectively under the law of England and Wales.

At Alexander JLO we have many years of experience of dealing with all aspects of family law and will be happy to discuss your case in a free no obligation consultation. Why not call us on +44 (0)20 7537 7000, email us at info@london-law.co.uk or get in touch via the contact us button and see what we can do for you?

This blog was prepared by Peter Johnson on 11th November 2025 and is correct at the time of going to press. With over forty years of experience in almost all areas of law Peter is happy to assist with any legal issue that you have. He is widely regarded as one of London’s leading divorce lawyers. His profile on the independent Review Solicitor website can be found Here. To follow up on any of the above please contact Guy Wilton of our family department. Guy has wide experience of acting for the firm’s clients, their family and their businesses. Guy’s experience as a lawyer started in the Northern and Welsh Circuits, including the Liverpool Courts, where he represented numerous clients after being called to the Bar, before opting to join Alexander JLO in 2017 and qualifying as a solicitor in 2024. He is a highly experienced family lawyer with a particular interest in financial remedy proceedings and child contact disputes.

Guy’s profile on the independent Review Solicitor website can be viewed here.