Onboard the custodian first, verify every destination with a test transaction, then move in tranches rather than all at once. The transfer itself is generally not a taxable event because ownership does not change, and it is the best chance you will get to fix your basis records, since you are handling every position anyway.
Part of our guide: Digital Asset Custody.
The short version
- Onboarding takes two to six weeks for an entity. Start it before you plan the move, not after.
- Moving between wallets you control, or into an account titled to an entity you own, is generally not a disposition for tax. Confirm your facts with a CPA.
- Move in tranches. There is no reason to expose the entire position to a single operational event.
- The migration is the moment to capture acquisition history, because you are already opening every wallet.
- You are trading key risk for counterparty risk. That is often a good trade and it is a trade.
The sequence
1. Inventory first. Every wallet, device, and account, with balances and what you know about how each position was acquired. Nothing moves before this exists, because the inventory is also the checklist that tells you when the migration is finished.
2. Onboard the custodian. For an entity that means formation documents, EIN, operating agreement, beneficial ownership, and often a source-of-funds explanation. Weeks, not days.
3. Confirm the account title. Exactly the legal entity name, and confirm which entity in the custodian’s group actually holds it.
4. Set up whitelisting. Add the destination addresses, and let any time delay elapse before you need them.
5. Test every destination. A small amount to each address, confirmed received, before anything material moves. Every address, every time.
6. Move in tranches. Largest positions in several pieces rather than one. Confirm each before starting the next.
7. Capture records as you go. For each transfer: date, time, from and to, amount, and the acquisition history behind that position.
8. Reconcile against the inventory, and only then decide what happens to the old devices.
The tax point
Moving assets between wallets you control is not a sale. Moving them into an account titled to a single-member LLC you own is generally not either, because the entity is disregarded and the same person owns the asset before and after (IRS).
What the migration does change is your evidence. Basis follows the asset, and the acquisition history behind each position is the thing that is easy to lose and impossible to reconstruct after an exchange disappears. You are already touching every position during a migration. Capturing the history at that moment costs almost nothing and is the single most valuable byproduct of the whole exercise.
Watch two things. If any leg of the migration involves selling and rebuying, that is a disposition with real consequences. And if assets move between different owners, a person to a trust, or one entity to another, the analysis changes and needs professional input before the transfer rather than after.
What you are actually trading
Self-custody concentrates key risk: loss, damage, an unrehearsed recovery, a single person who knows the passphrase. Qualified custody replaces most of that with counterparty risk: the custodian’s solvency, its internal controls, and the terms of your account agreement.
For most families holding meaningful amounts, that is a good trade, mainly because custodians have a process for death, incapacity, and change of authority, and a hardware wallet in a safe does not.
It remains a trade. The diligence that matters is operational rather than promotional: who reconciles the internal ledger against on-chain balances, how often, and whether anyone outside the company checks. Prime Trust is the case that makes the point, and Max Avery’s write-up of the custodian that could not open its own wallets is the clearest account of how that unwinds.
Which is the argument for not moving everything to one place.
What I actually see
The migration gets done in one session because it feels good to finish. That concentrates every operational risk into a single afternoon: address errors, network errors, and fatigue, all at once, with the full position in motion.
The second pattern is the abandoned tail. Ninety percent moves, and a few small balances stay behind on old devices because they were not worth the fee. Two years later nobody remembers which device, whether the seed was retained, or whether those balances still exist. The inventory exists precisely to prevent this, which is why step 8 is reconciling against it rather than declaring victory.
The thing most worth doing, and most often skipped: while every wallet is open, export the acquisition history. Exchange statements, purchase records, transfer history. It is the only moment when all of it is in front of you, and after a venue closes the information is simply gone.
On old devices: do not wipe anything until the inventory reconciles and the new arrangement has been verified. Then decide deliberately.
Where this goes wrong
The move happens faster than the record-keeping, and the record never catches up.
The specific failures: transfers made before onboarding completed, so assets land somewhere temporary. Destinations verified once by reading the first and last characters. Acquisition history left on a venue that closes six months later. Old devices wiped before reconciliation. And the whole position moved to a single custodian on a single day with no tranching.
The decision rule
- Inventory before anything moves.
- Complete onboarding first, including whitelisting and delays.
- Test every destination address with a small amount.
- Tranche the large positions.
- Export acquisition history while every wallet is open.
- Reconcile against the inventory before retiring any device.
- Do not concentrate the whole position with one custodian.
If a step cannot be completed, pause the migration rather than working around it. Nothing about this is urgent, and every failure mode here is caused by hurry.
Where this sits
Migration is where custody, records, and succession all get touched at once. What “qualified” means determines who you are onboarding with. Custody for an entity covers the titling that makes the account evidence of ownership. What happens if a custodian fails is the risk you are taking on. Succession is much of the reason to make the move at all.
The migration is a rare moment when every position is in front of you. Use it for the records, not only the transfers.
Sources
- IRS, Single member limited liability companies
- IRS, Digital assets
- 17 CFR 275.206(4)-2, Custody of funds or securities of clients by investment advisers
- FinCEN, Beneficial ownership information
- IRS, Recordkeeping for businesses
- NIST, Special Publication 800-57, Recommendation for key management
Related
- What is a qualified crypto custodian?
- What happens if a crypto custodian fails?
- Crypto custody for LLCs
- What happens if I transfer crypto to the wrong address?
- Private key succession planning
- Crypto custody
Last updated: 3 August 2026.
This article is general education, not legal, tax, or investment advice. Tax outcomes depend on your facts and your records, and custody arrangements can reduce certain risks but do not eliminate them. Talk to a qualified CPA and attorney about your own situation.
