Securing Your Bitcoin Legacy: A Guide to Inheritance Planning

Introduction

As a Bitcoin owner, it is crucial to recognise that, like any other asset, Bitcoin cannot be taken with you after death. If your private keys are inaccessible, your Bitcoin holdings can be lost forever. According to Chainalysis, an estimated 20% of the total Bitcoin supply is already permanently lost – and poor inheritance planning is a significant contributing factor. For Bitcoin holders across the UK and Ireland, the legal and technical considerations are broadly similar, but the inheritance and probate process differs between jurisdictions – making tailored, locally-informed planning all the more important. Bitcoin inheritance planning is not a niche concern. It is one of the most important financial decisions any Bitcoin holder can make.

The challenge of passing on Bitcoin

Unlike traditional financial assets, Bitcoin is based on self-custody. There is no bank, no asset manager, and no regulator to recover funds in the event of death. Bitcoin can be held in hardware wallets, software wallets, or on centralised exchanges. The responsibility for ensuring safe passage to your heirs lies entirely with you.

Many people accumulate Bitcoin with the intention of passing it on to future generations. Without proper planning, that intention means nothing. If your family cannot access your Bitcoin after your death, it does not pass to them – it disappears from circulation permanently. Unlike a frozen bank account, there is no court order, no probate process, and no customer service team that can retrieve it.

Your will and Bitcoin

Similar to traditional assets, Bitcoin beneficiaries should be identified in your will. You can nominate a trusted person to access private keys without necessarily inheriting the Bitcoin outright. However, assigning your solicitor as a trustee for your Bitcoin is not recommended due to the technical complexity involved and the regulatory position most solicitors currently occupy.

Including specific details about your Bitcoin holdings in your will requires careful thought. Wills become public records after probate, which means specifying large Bitcoin holdings could attract unwanted attention. A sensible approach is to reference the existence of Bitcoin holdings and the location of access instructions, rather than specifying exact amounts or wallet details within the will itself.

How much should you share and with whom

Your family needs to know that you hold Bitcoin and how to access it – but not necessarily all of that information at once, or from a single source. The goal is to distribute access responsibility without giving any one person all the information required to access your holdings independently while you are alive.

A practical approach involves splitting the information – for example, your heir holds the seed phrase and your solicitor holds a separate passphrase. Neither can access the Bitcoin alone, but together they can. This structure protects against both theft and accidental loss.

For Bitcoin stored on exchanges, standard probate procedures will generally apply. Beneficiaries can recover funds by providing a death certificate, probate documents, and proof of identity. That said, Florin21 does not recommend holding significant Bitcoin on exchanges due to counterparty risk – if an exchange fails, your Bitcoin may be unrecoverable regardless of your inheritance planning.

Securing the physical access information

Seed phrases should never be stored digitally – not in email, cloud storage, password managers, or photographs on your phone. Use physical documentation stored in a secure location such as a fireproof safe. For long-term preservation, engraving your seed phrase onto a metal backup plate provides protection against fire, flood, and physical deterioration. Services such as Cryptosteel offer purpose-built solutions for durable key storage.

The key principle is redundancy without concentration. Your access information should be recoverable if one copy is lost, but not accessible to any single person without the cooperation of others.

Advanced options: multi-signature wallets

For individuals with significant Bitcoin holdings, multi-signature wallets offer the most robust inheritance solution. These wallets require a minimum number of keys – typically two from three, or three from five – to authorise any transaction. No single key holder can access the Bitcoin alone, which eliminates both single points of failure and the risk of theft by any individual.

Two established providers worth considering are Casa and Bitkey. Casa offers a personal multi-signature vault with an inheritance protocol that allows designated recipients to receive keys after your death, with their team holding a recovery key. Bitkey allows you to add trusted contacts who can assist with key recovery.

In a multi-signature setup, one approach is to hold two keys yourself in separate locations, have a third key held by a trusted family member or professional, and store clear documented instructions for your executor alongside the arrangement. Your heir does not need to be a Bitcoin expert – they need to know who to contact and what documents to present.

The passphrase option

If a multi-signature wallet is not appropriate for your situation, adding a BIP39 passphrase to your existing hardware wallet provides an additional layer of security. The passphrase acts as a 25th word that must be entered alongside your seed phrase to access the wallet. You could give your solicitor the passphrase and your heir the seed phrase. Even if the seed phrase is compromised, the Bitcoin remains inaccessible without the passphrase. This approach is simpler than multi-sig but provides meaningful protection.

What your executor needs to know

Whoever handles your estate needs enough information to act – but that information needs to be documented clearly in advance. A well-constructed Bitcoin inheritance plan should include a written document explaining what Bitcoin is and why it has value, the location of hardware wallets and seed phrase backups, the name and contact details of any custody service used, step-by-step instructions for accessing the Bitcoin, and the name of any Bitcoin professional who can assist the executor with the technical process.

Florin21 provides a Bitcoin Inheritance Recovery Support service specifically designed to sit alongside a standard will or succession plan. This includes a documented recovery protocol, secure storage of recovery information, an executor briefing document, and activation support when required. It is structured as a setup fee with an annual retainer, ensuring the plan remains current as your situation. Contact us at [email protected] for current pricing.

Take the free two-minute assessment

Not sure how protected your Bitcoin legacy is right now? Our free Bitcoin Inheritance Risk Assessment asks seven questions and gives you an immediate score based on your current setup. No sign-up required to see your result.

florin21.com/inheritance-risk-score

Conclusion

Bitcoin inheritance planning is not optional for anyone who holds a meaningful amount of Bitcoin and has people who depend on them. The technical barriers are real but they are solvable with the right preparation. The risk of doing nothing is permanent, irreversible loss.

Florin21 works with individuals, family offices, and HNWIs across the UK and Ireland to build inheritance plans that are technically sound, legally considered, and practically executable by non-technical executors. Book a free 20-minute discovery call at cal.com/florin21/20min or contact us at [email protected].

Take the next step

The UK Bitcoin Inheritance Planning Kit gives you the templates and checklists to put your plan in place today – produced by Florin21.

This article is for educational and informational purposes only. Nothing in it constitutes financial or investment advice. Florin21 is not FCA regulated. Always seek independent professional advice before making any financial decision.