Planning for a position this size starts as cleanup, because the wealth almost always arrives before any structure around it. I would order the work by how fast each input perishes rather than by how important it looks. Venue exports, your memory of why a transfer happened, and access to old devices are all expiring on their own clocks. Documents wait for you indefinitely.
Part of our guide: Family Office.
The short version
- The wealth generally arrived first, so this opens as a cleanup with a backlog behind it rather than a design exercise.
- Rank the work by what is expiring. Venue records, the reason a movement happened, and device access all decay. Documents do not.
- Intent has one source. Whether a movement was a purchase, a gift, a payment, or a shift between your own wallets is recoverable from you alone.
- A cutoff date makes the reconstruction finishable: captured as it happens from that date forward, rebuilt and labeled behind it.
- An imminent transaction outranks the sequence, since its evidence costs least while the counterparty and the reason both still exist.
The wealth arrived before the structure
Conventional planning assumes assets arrive with a paper trail attached: a salary produces a W-2, a business sale produces a closing binder. A position accumulated across a decade of venues produces whatever the holder happened to save. Coins sit titled personally, venues used along the way have been acquired or have changed what they export, and the will predates the first purchase. That is the ordinary result of buying something years before it became the largest thing you own.
The recordkeeping duty has been running the whole time, and section 6001 puts it on the holder rather than the venue:
“Every person liable for any tax imposed by this title, or for the collection thereof, shall keep such records, render such statements, make such returns, and comply with such rules and regulations as the Secretary may from time to time prescribe.”
The digital asset guidance applies that duty in detail, asking for dates, units, dollar values, and the basis of anything disposed of (IRS, Digital assets), and Publication 551 says the same about basis generally (IRS, Publication 551). A balance describes the present while the duty runs to the history, which is where record mistakes accumulate.
Rank the work by what is expiring
Four kinds of input feed everything downstream, and they decay at very different rates. That difference is the argument for a particular order.
Records held by somebody else decay fastest. A venue that exists today will hand you a complete export today. In two years it may have merged, changed operators, or kept balances while dropping pre-migration trade detail. Nobody there is obliged to preserve any of it for you.
Intent decays next, and it has one source. A movement on chain shows an amount, two addresses, and a timestamp, and nothing about whether it was a purchase, a gift, a payment, or a shift between wallets you control on both ends. Location matters too, since basis has been tracked place by place since the start of 2025 under Rev. Proc. 2024-28. A CPA can reprice a transaction years afterward. Nobody can supply what it was for.
Access decays on a household clock. Devices get retired, firmware moves on, families move house, a passphrase that felt memorable in 2019 stops being memorable, and the friend who helped with the setup becomes unreachable. Custody covers the arrangements, and whether a trustee can hold a hardware wallet covers where the legal and technical sides meet.
Documents do not decay. A will drafted in 2015 is exactly as available in 2035, and an LLC or a trust can be formed in whichever month you choose. The caveat is that funding a structure is itself a transaction, so whether the entity can hold the wallet gets settled from the access work above it.
Put those four in decay order and the sequence writes itself: pull what someone else controls, capture what only you know, secure access, then draft. Most people run it in reverse, and laziness is rarely the reason. Drafting is the only step with an appointment and a document attached. The three ahead of it carry most of the value and produce nothing anybody congratulates you for. Anything more elaborate, charitable structures or borrowing against a position compared with selling, inherits every gap left underneath.
The cutoff date, and the one reversal
A backlog has one advantage over a blank page: you get to decide where it starts. Pick a date. From there forward, everything is captured as it happens. Behind it, the history gets rebuilt from the best evidence still available and labeled as a reconstruction, with one method applied to every position. Most attempts I see fail from exhaustion rather than difficulty, because they were framed as fixing everything and had no finish.
Doing the work late is the expensive version, and the estate return is where the invoice arrives. Above the federal filing threshold, $15,000,000 for deaths during 2026 (IRS, Estate Tax), an estate has to find, value, and report holdings against a statutory deadline using whatever evidence survived.
The order reverses in one situation. When a transaction is close, an outright gift, funding an entity, a change of custodian, or any disposition, it jumps to the front and its file gets built before it clears. A gift documented as it happens supports the recipient’s basis and holding period and the return that reports it (Form 709). The same gift documented eighteen months later is an argument.
What I actually see
Three patterns account for most of the avoidable cost.
The export deferred until it was needed. Somebody tells me they will pull their full history from a venue when we get to the tax piece. The venue is acquired, the new operator keeps balances and drops pre-migration trade detail, and a file that sat two clicks away becomes a permanent estimate. The company never failed. The records left anyway.
The movement nobody can characterize. Four years on, a transfer between two addresses, and three readings that all fit: a purchase from a private seller, a gift to a family member, or a move between the holder’s own wallets. The holder is sitting across from me and cannot say which.
The reconstruction that restarts. A third attempt at the history, a different tool each time, each abandoned around the same year, because nobody drew a line between what remains recoverable and what will be estimated behind it. Every attempt redoes the part that was already easy.
An exercise worth running this week, before anything gets drafted. List the six largest movements of the last three years. Beside each, write two things from memory: what it was for, and what export or document would let someone else establish that. Then confirm the document is still where you believe it is. Whatever you could answer only from memory is the perishable part of your file, and it sets your starting point.
Where this goes wrong
The damage clusters in one place: work carrying an expiry date gets postponed behind work carrying an appointment.
A venue export left until the year it mattered, by which point the operator had changed and the trade detail was gone. A reconstruction stopped at the first gap and never bounded, so every later attempt began again at the beginning. A device retired into a drawer with a passphrase that only ever existed in one conversation. An operating agreement whose schedule of contributed property reads “digital assets” with no addresses, dates, or amounts. And the version that costs the most: a second layer of structure built on a first layer whose funding was never written down, which doubles the reconstruction instead of retiring it.
The decision rule
- Pull everything a third party still holds, from every venue, active or fading, before any drafting begins.
- Write down intent while you still have it, one line per non-routine movement: what it was for, and who was on the other side.
- Map access in the same week, naming every device, passphrase, and person the position depends on.
- Draw a cutoff date in writing, contemporaneous from there forward, rebuilt and labeled behind it, one method for every position.
- Rebuild the largest positions first, so the file becomes useful well before it becomes complete.
- Choose the ownership layer once the perishable inputs are secured, whether personal, entity, trust, or a combination, with the reason recorded.
- Fund what you form on the day you form it, with the transfer written into the entity’s or the trust’s own books.
- Promote any imminent transaction to the front, and build its file before it clears rather than after.
Where this sits
This article sits above four bodies of work that each run deeper than one page can. Custody covers whether anyone besides you can reach the assets. Wyoming LLCs and trusts cover who owns them and on whose books. Estate covers what happens at the end. Questions about the position itself sit outside this sequence and belong with concentration risk and diversification. Start with whichever input on your own list is expiring soonest.
These questions cross professional boundaries, and the reason the handoff fails is worth being precise about. Every engagement has a natural starting point, and none of them is your backlog. The attorney begins with the documents you carry into the meeting, the CPA with the year on the desk, the custodian with the account you opened. The perishable material sits behind all three, in the part of the file only you can still describe, and when nobody is assigned it, it stays open until an event makes it urgent.
Sources
- 26 U.S.C. § 6001, notice or regulations requiring records, statements, and special returns (Cornell LII)
- IRS, Digital assets
- IRS, Publication 551, Basis of Assets
- IRS, Estate Tax
- IRS, Rev. Proc. 2024-28, basis allocation to wallets
- Wyoming Limited Liability Company Act, Wyo. Stat. Ann. Title 17, Chapter 29 (Wyoming Legislature)
- Revised Uniform Fiduciary Access to Digital Assets Act (Uniform Law Commission)
Related
- What is crypto wealth management?
- How do I protect crypto wealth?
- Crypto concentration risk management
- What is a crypto fiduciary advisor?
- Common crypto estate planning mistakes
- Crypto wealth management
Last updated: 3 August 2026. Federal estate tax filing thresholds are indexed and change annually.
This article is general education, not legal, tax, or investment advice. Nothing here is a recommendation to buy, sell, or hold any asset. Outcomes depend on your records, your custody arrangements, and your state. Talk to a qualified attorney and CPA about your own situation.
