The Problem: Moving to America Is a Tax Event in Slow Motion
Most estate planning literature is written for US citizens and long-term residents. Foreign nationals who move to the United States — executives, entrepreneurs, investors, Bitcoin-wealthy individuals from the Middle East, Asia, Europe, Latin America, and beyond — face a categorically different planning environment. And the stakes are enormous.
Before moving to the US, a foreign national who is a nonresident alien (NRA) for estate tax purposes pays US estate tax only on US-situs assets: US real estate, shares of US corporations, US bank accounts. Bitcoin held in a foreign wallet, custodied offshore, or otherwise outside the US estate tax situs framework is entirely exempt from US estate tax for a nonresident alien.
The moment that foreign national establishes US domicile — the intent to remain in the United States indefinitely — that exemption disappears. Suddenly their worldwide estate, including every satoshi of Bitcoin held anywhere in the world, is subject to US estate tax at 40% above the exemption threshold. A Bitcoin holding worth $10 million that was entirely outside the US tax system one day before domicile is established is worth $5.6 million the day after (after the hypothetical 40% estate tax on the excess above the $15M OBBBA exemption, adjusted for the actual holding).
For families with Bitcoin holdings in the $5–50M range arriving from countries without estate taxes — which is most of the world — this exposure is existential. The United States has one of the most aggressive estate tax regimes on earth. Pre-immigration Bitcoin planning closes the window before arrival. Failing to plan closes it permanently.
The Window Closes at Domicile
Once you establish US domicile — by obtaining a green card, establishing permanent residence, or demonstrating intent to remain in the US indefinitely — the planning window for pre-immigration Bitcoin trust structures is closed. Any transfer to an irrevocable trust after domicile is a taxable gift. Any Bitcoin remaining in your personal name becomes part of your worldwide taxable estate. Plan before you arrive.
NRA vs. US Person: The Estate Tax Distinction That Governs Everything
US transfer tax law uses two different tests to determine residency — and confusingly, they apply different standards for income tax versus estate/gift tax purposes.
Income Tax Residency (§7701)
For income tax purposes, a person is a US resident if they are a lawful permanent resident (green card holder) or meet the substantial presence test (183+ days in the US using a weighted formula). A foreign national who spends 4 months per year in the US for several years may become a US income tax resident under the substantial presence test — even without any permanent residence intent.
Estate and Gift Tax Residency (Domicile)
For estate and gift tax purposes, the standard is entirely different: domicile. A person is domiciled in the US if they are physically present in the US with the present intention of remaining there indefinitely. This is a facts-and-circumstances test. Key indicators of US domicile include:
- Obtaining a green card or permanent resident status
- Purchasing or long-term leasing a primary residence in the US
- Relocating immediate family to the US
- Statements of intent to remain (social media, visa applications, employer letters)
- Surrendering foreign residence, driver's license, or registrations
- Registering children in US schools
A foreign executive who spends 6 months per year in the US for business, maintains a foreign permanent home, keeps their family abroad, and holds a B-1/B-2 visa is likely NOT domiciled in the US for estate tax purposes — even though they may be a US income tax resident. Conversely, a person who arrives on an investor visa with clear intent to stay permanently has established domicile even before obtaining a green card.
| Tax System | Residency Test | Trigger | Consequence for Bitcoin |
|---|---|---|---|
| Income Tax | Substantial Presence / Green Card | 183 days (weighted) or LPR status | Worldwide Bitcoin gains reported on US return |
| Estate Tax | Domicile | Intent to remain indefinitely in US | Worldwide Bitcoin in taxable estate at 40% |
| Gift Tax | Domicile | Same as estate tax domicile | Worldwide Bitcoin gifts subject to US gift tax |
| NRA (pre-domicile) | Neither test met | — | US estate tax only on US-situs assets (not Bitcoin) |
Is Bitcoin a US-Situs Asset for NRA Estate Tax Purposes?
The estate tax situs of Bitcoin is one of the most important and unsettled questions in international tax planning for Bitcoin holders. The answer determines whether a nonresident alien's Bitcoin is subject to US estate tax at all — and the IRS has not issued definitive guidance.
Under general principles, US estate tax applies to the US-situs assets of nonresident aliens under §2103. The situs rules under §2104 specify that:
- Real property is situated where it is physically located
- Tangible personal property is situated where it is physically located
- Intangible personal property — including corporate stock, bank deposits, and debt instruments — follows specific situs rules based on the issuer's or obligor's location
Bitcoin is unique: it is not debt, it is not equity in a corporation, it is not traditional intangible property. The dominant practitioner view is that Bitcoin is intangible property with no fixed situs — analogous to a bearer instrument held outside the US — and is therefore not a US-situs asset for NRA estate tax purposes.
However, a meaningful risk arises when Bitcoin is held through a US-based custodian, exchange, or broker. In that case, what the NRA "holds" may be characterized as an account receivable against a US entity — which could be treated as a US-situs debt instrument under §2104(b). The cautious approach: before establishing US domicile, migrate Bitcoin holdings from US-based custodians (Coinbase, Kraken, Gemini) to:
- Self-custody (hardware wallet, multi-sig) outside US-registered infrastructure
- Non-US custodians based in Switzerland, Singapore, Cayman Islands, or other favorable jurisdictions
- A pre-immigration trust with a non-US trustee and non-US administration
Practitioner Consensus
Until the IRS issues explicit guidance on Bitcoin situs, the conservative position is to treat self-custodied Bitcoin as having no fixed US situs (not subject to NRA estate tax), while Bitcoin in US brokerage or exchange accounts carries potential US-situs risk. Pre-immigration planning should migrate holdings accordingly before domicile is established.
The Pre-Immigration Trust (PIT): Holding Bitcoin Outside the US Estate
The core planning vehicle for a Bitcoin-wealthy foreign national moving to the US is the pre-immigration trust (PIT) — an irrevocable trust established before the individual becomes a US person, designed to hold the Bitcoin outside the US estate and gift tax system in perpetuity.
A properly structured pre-immigration trust has the following characteristics:
Established Before US Domicile
The trust must be established and funded before the grantor establishes US domicile. Any property transferred to the trust after domicile is established is a taxable gift subject to US gift tax. The §2035 three-year lookback rule for estate tax can claw back transfers made within three years of domicile — though the three-year lookback under §2035 applies to transfers "in contemplation of" events that would trigger estate inclusion, and its application to pre-immigration trusts is fact-dependent. Best practice: establish and fund the PIT at least three years before anticipated US domicile establishment.
Irrevocable and Without Retained Strings
The grantor cannot retain control, beneficial enjoyment, or the power to revoke under §§2036–2038. Any retained interest or control causes the trust to be included in the grantor's US taxable estate once they become a US person. For Bitcoin specifically: the grantor cannot retain the private keys, cannot unilaterally direct the trustee's custody decisions, and cannot designate themselves as a beneficiary in a way that triggers §2036 inclusion.
Foreign Trustee and Administration
A trust is "domestic" if a US court has primary supervision over the trust and one or more US persons have authority to control all substantial decisions. A trust is "foreign" if it fails either test. For the PIT to remain a foreign trust (with the favorable NRA estate tax treatment), the trustee must be a non-US person or entity, and administration must occur outside the US. Using a Cayman Islands, Singapore, or Isle of Man trust company as trustee — rather than a US bank trust department — keeps the trust foreign for US tax purposes.
Non-US-Situs Assets
The trust should hold Bitcoin through non-US custodians or in self-custody arrangements that don't create US-situs exposure. Holding Bitcoin inside the PIT through a Coinbase account would potentially negate the situs planning even though the trust is nominally foreign.
The §679 Foreign Grantor Trust Problem
Section 679 is the primary tax obstacle for pre-immigration trusts once the grantor becomes a US person. Under §679, a US person is treated as the owner (grantor) of a foreign trust for income tax purposes if:
- The US person directly or indirectly transferred property to the trust, and
- The trust has a US beneficiary (including after-born US persons)
When §679 applies, the grantor is taxed on the trust's income as if they owned the assets directly — including capital gains when Bitcoin is sold inside the trust. This does not cause estate inclusion, but it does eliminate the income tax deferral benefit of holding Bitcoin inside the foreign trust.
For a pre-immigration Bitcoin trust intended to survive the grantor's move to the US, there are two approaches to the §679 problem:
Option 1: Non-Grantor Trust Structure
If the PIT is structured so that the grantor retains no control, no income interest, no power to add or change beneficiaries, and no reversionary interest — and there are no circumstances under which the grantor can benefit from the trust — §679 may not apply because the trust has no "US beneficiary" that includes the grantor. More practically, the trust can be structured as a discretionary trust for the grantor's children (non-US persons before immigration, and non-US persons intended to remain outside the US), with the grantor excluded from the beneficiary class entirely. This removes the §679 US beneficiary trigger — but also means the grantor receives no distributions from the trust during their lifetime.
Option 2: Accept §679, Plan for Income Tax
Many families accept §679 grantor trust treatment after immigration — the trust is treated as a grantor trust for income tax (gains flow to the US grantor's return), but it remains outside the US estate and gift tax system. This means Bitcoin sold inside the trust is taxed to the US grantor at capital gains rates — not deferred — but all future appreciation after the sale date accumulates outside the US estate. The income tax cost is the trade-off for permanent estate tax exclusion.
Key Trade-Off
Non-grantor PIT: No income tax on trust gains to the US grantor, but the grantor cannot receive distributions. Grantor PIT (§679 applies): Grantor pays income tax on Bitcoin gains inside the trust, but can receive distributions. For Bitcoin holders who want to access trust wealth during their US residency, the grantor trust structure (accepting §679) is often the practical choice — the estate tax exclusion is the primary goal, not income tax deferral.
US Reporting Obligations for Foreign Bitcoin Trusts
Once the grantor becomes a US person, a pre-immigration Bitcoin trust triggers several reporting obligations — even if no tax is owed. Failure to file carries severe penalties.
| Form | Description | Due Date | Penalty for Non-Filing |
|---|---|---|---|
| Form 3520 | Transactions with foreign trusts; receipt of distributions | Same as income tax return (April 15 / Oct 15) | 35% of gross value of distributions or transfers |
| Form 3520-A | Annual information return of foreign trust with US owner | March 15 (foreign trust) / Oct 15 (extended) | 5% of gross trust value per year (minimum $10,000) |
| FinCEN 114 (FBAR) | Foreign financial accounts including Bitcoin exchange accounts | April 15 (auto-extension to Oct 15) | $10,000–$100,000+ per violation; criminal risk |
| Form 8938 (FATCA) | Specified foreign financial assets above threshold | Same as income tax return | $10,000–$50,000 per failure; 40% underpayment penalty |
| Form 8621 | Required if trust holds shares in a passive foreign investment company (PFIC) | Same as income tax return | Statute of limitations never expires without filing |
Note: Bitcoin held directly in the pre-immigration trust is not itself a PFIC, and Form 8621 does not apply to direct Bitcoin holdings. It applies only if the trust holds shares in foreign investment funds or companies with primarily passive income.
The §2801 "Covered Gift" Tax: Gifts Received from Covered Expatriates
Section 2801 imposes a tax on US persons who receive gifts or bequests from "covered expatriates" — individuals who have renounced US citizenship or terminated long-term US residency and meet certain wealth or compliance thresholds. The §2801 tax rate equals the highest estate tax rate in effect (currently 40%) applied to the gift or bequest value.
For pre-immigration Bitcoin planning, §2801 is relevant in one specific scenario: a foreign national who moves to the US, accumulates additional Bitcoin, and later renounces US citizenship or long-term residency (becoming a covered expatriate) — then gifts or bequeaths Bitcoin to US-person children. In that scenario, the US children would owe §2801 tax on the received Bitcoin.
Pre-immigration planning that keeps Bitcoin outside the US taxable estate (inside a properly structured PIT) can also help manage §2801 exposure: if the Bitcoin is in the pre-immigration trust rather than the grantor's personal US estate, the §2801 analysis focuses on trust distributions rather than direct gifts, potentially with more planning flexibility for structuring the gift in a treaty-favorable or excluded-interest format.
Treaty Planning: Does Your Home Country Have an Estate Tax Treaty?
The United States has estate and gift tax treaties with a limited number of countries. These treaties can affect the situs rules, the exemption available to NRAs, and the treatment of foreign tax credits. As of 2026, the US has estate/gift tax treaties with:
Australia, Austria, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Japan, Netherlands, Norway, South Africa, Sweden, Switzerland, and the United Kingdom.
Notable absences: China, India, UAE, Saudi Arabia, Brazil, Canada (income only — no estate treaty), Russia, and most of Latin America, the Middle East, and Southeast Asia. Foreign nationals from these non-treaty countries receive no treaty benefit and are entirely dependent on the US domestic NRA estate tax rules and their own pre-immigration planning.
For treaty countries, the specific treaty provisions must be reviewed — treaty benefits vary significantly. Some treaties provide an NRA with a prorated share of the US exemption (e.g., the UK treaty). Others simply confirm existing situs rules. A US-UK treaty analysis, for example, would examine how Bitcoin situs is treated under the treaty's property definitions — another area where the novel nature of Bitcoin creates uncertainty that benefits from conservative pre-immigration structuring rather than relying on treaty interpretations that haven't been tested in litigation.
Pre-Immigration Planning Timeline
The most common mistake in pre-immigration Bitcoin planning is starting too late. The sequence must be correct — and the lead time matters enormously.
| Timing | Action | Why |
|---|---|---|
| 3+ years before US domicile | Establish pre-immigration trust; fund with Bitcoin | Clears §2035 three-year lookback; maximum planning flexibility |
| 1–2 years before | Migrate Bitcoin from US custodians to non-US custodians or self-custody | Removes potential US-situs account exposure before NRA status ends |
| 1 year before | Confirm trust structure with US international tax attorney; finalize §679 election decision | Ensure compliance with Treasury Regulations on foreign trusts; resolve non-grantor vs. grantor approach |
| 6 months before | Establish FBAR/Form 3520 filing readiness; brief trustee on US reporting obligations | Avoid first-year filing failures; steep penalties apply from first year of US personhood |
| At domicile establishment | Document domicile date; begin US reporting obligations; file Form 3520-A for trust | Creates clean record; FBAR due April 15 of following year; Form 3520-A due March 15 |
| First US tax year | File all required information returns: Form 3520, 3520-A, FBAR, 8938 | Failures in first year often uncorrectable without large penalties; IRS can assert open statute |
What the OBBBA $15M Exemption Means for Pre-Immigration Planning
The One Big Beautiful Budget Act of 2026 raised the US estate and gift tax exemption to approximately $15 million per individual ($30 million per married couple). For a foreign national moving to the US with a Bitcoin holding below $15M, the OBBBA exemption may absorb the entire estate — making pre-immigration trust planning less urgent from a pure estate tax perspective.
However, several considerations make pre-immigration planning valuable even below the $15M threshold:
- Bitcoin appreciation — a $5M Bitcoin holding today that reaches $50M during the holder's US residency could create enormous estate tax exposure; locking Bitcoin outside the US estate before immigration keeps that appreciation outside the taxable estate permanently
- Exemption impermanence — the OBBBA exemption may not be permanent; if it reverts to pre-2018 levels (~$5M indexed), a Bitcoin holding that was safely under the exemption today could be deeply over it in a future year
- State estate taxes — several US states (Massachusetts, Oregon, Maryland, etc.) impose state estate tax with exemptions as low as $1–2M; a $10M Bitcoin holding might escape federal tax but face significant state-level exposure
- Asset protection — a pre-immigration trust established in a favorable foreign jurisdiction (Cayman Islands, Cook Islands, Channel Islands) provides asset protection benefits beyond estate tax planning
- Gift tax efficiency — once a US domiciliary, worldwide gifts are subject to US gift tax; an established PIT can receive additional contributions at gift tax cost, but the initial trust funded before immigration is potentially more efficient
Bitcoin Mining: The Most Powerful US Tax Strategy for New Residents
For foreign nationals who move to the US and begin earning US income, Bitcoin mining creates significant deductions — depreciation, bonus depreciation, and operating expense deductions — that can offset income and reduce the US income tax cost of becoming a US person. This is a strategy unique to direct Bitcoin ownership that ETF investors and passive holders cannot access.
Explore the Bitcoin Mining Tax Strategy →Pre-Immigration Bitcoin Planning Checklist
- Determine your domicile timeline — when do you plan to establish US permanent residence? Work backward from that date to set planning deadlines; ideally begin 3+ years in advance
- Inventory all Bitcoin holdings — location of each wallet/custodian, cost basis, current FMV; identify which are at US-based custodians requiring migration
- Assess NRA estate tax exposure — calculate the US estate tax cost if you died as a US person tomorrow; determine what exceeds the $15M OBBBA exemption and requires pre-immigration shelter
- Engage a US international tax attorney — pre-immigration planning is a specialized field; general estate planning attorneys often lack the §679/§2801/treaty expertise required
- Establish the pre-immigration trust in a favorable jurisdiction — Cayman Islands, Channel Islands, Singapore, Liechtenstein; confirm the jurisdiction's trust law and relationship with the US
- Decide grantor vs. non-grantor trust structure — if you want distributions from the trust during US residency, accept §679 grantor trust status; if you want income tax deferral on Bitcoin gains inside the trust, structure as non-grantor (at the cost of no distributions to you)
- Fund the trust with Bitcoin before establishing US domicile — fund at least 3 years before domicile if possible; document funding date, on-chain transaction IDs, FMV at transfer date
- Migrate Bitcoin from US custodians to non-US infrastructure — move to foreign custodian or self-custody before establishing US domicile; document the migration date
- Set up FBAR/3520/8938 filing infrastructure — work with a US international tax CPA before your first US tax year to establish reporting compliance; brief the foreign trustee on Form 3520-A filing obligations
- Review treaty benefits — if your home country has a US estate/gift tax treaty, analyze whether treaty benefits reduce planning urgency or provide situs clarification for Bitcoin
Frequently Asked Questions
When does a foreign national become subject to US estate and gift tax on Bitcoin?
Upon establishing US domicile — the intent to remain in the United States indefinitely. This is not the same as the income tax substantial presence test. A foreign national can be a US income tax resident (spending 183+ days per year) without being domiciled for estate/gift tax purposes. However, obtaining a green card or permanent resident status is strong evidence of domicile. Before US domicile is established, a nonresident alien pays US estate tax only on US-situs assets — and Bitcoin held offshore or in self-custody is generally not a US-situs asset under current practitioner consensus.
Is Bitcoin a US-situs asset for NRA estate tax purposes?
Unsettled, but the dominant practitioner view is no — Bitcoin is intangible personal property with no fixed geographic situs, and a nonresident alien holding Bitcoin in self-custody or through a non-US custodian owes no US estate tax on that Bitcoin at death. The risk arises when Bitcoin is held through a US-based exchange or brokerage, which may create a US-situs account receivable. Cautious pre-immigration planning migrates Bitcoin from US custodians before domicile is established.
What is a pre-immigration trust and how does it work for Bitcoin?
A pre-immigration trust is an irrevocable trust established before the grantor becomes a US person, designed to hold assets permanently outside the US estate and gift tax system. When properly structured — irrevocable, no retained control, non-US trustee, established before US domicile — it holds Bitcoin outside the grantor's US taxable estate for life and at death. The trust must also comply with §679 planning (either as a non-grantor trust or accepting §679 grantor trust income tax treatment) and triggers Form 3520/3520-A reporting once the grantor becomes a US person.
What is the §679 foreign grantor trust rule and why does it matter for Bitcoin?
Section 679 treats a US person as the income tax owner of a foreign trust if they transferred property to the trust and the trust has a US beneficiary. This means Bitcoin gains inside the trust are taxable to the US grantor — not deferred. However, §679 is an income tax rule only; it does not cause estate inclusion. A pre-immigration Bitcoin trust structured as a grantor trust (accepting §679) still keeps the Bitcoin outside the US estate while requiring the US grantor to pay income tax on gains when Bitcoin is sold inside the trust. A non-grantor trust avoids §679 but eliminates distributions to the grantor.
What happens if a foreign national moves to the US without completing pre-immigration planning?
Their worldwide Bitcoin immediately enters the US estate tax system. Post-domicile transfers to irrevocable trusts are taxable gifts. The §2035 three-year lookback may claw back transfers made shortly before domicile. All future Bitcoin appreciation above the OBBBA exemption (approximately $15M individual, subject to future changes) faces 40% estate tax. The planning window is permanently closed — remediation options are limited to using the US lifetime gift/estate exemption, charitable strategies (CRT, CLAT), or post-immigration transfers at gift tax cost.
What US reporting obligations apply to a pre-immigration Bitcoin trust?
Once the grantor becomes a US person: Form 3520 (transactions with foreign trusts — due with income tax return), Form 3520-A (annual information return of the foreign trust — due March 15, filed by the trust), FinCEN 114/FBAR (if the trust holds accounts at foreign financial institutions), and Form 8938 (FATCA, if foreign financial assets exceed the threshold). Penalties for non-filing are severe: up to 35% of the gross value of trust distributions (Form 3520) and 5% of gross trust value per year (Form 3520-A, minimum $10,000). These filings must be established in year one of US personhood — no grace period.
Does a US-based exchange or custodian create US-situs risk for Bitcoin?
Potentially yes. A nonresident alien holding Bitcoin through a US exchange may hold what the IRS could characterize as an account receivable against a US entity — potentially a US-situs debt instrument under §2104(b). The IRS has not definitively resolved Bitcoin situs, but cautious pre-immigration planning migrates Bitcoin from US-based custodians to non-US custodians or self-custody before establishing US domicile. This removes the US-situs argument entirely and ensures the Bitcoin clearly falls outside the NRA estate tax base.
This article is for informational purposes only and does not constitute legal, tax, or financial advice. Pre-immigration planning is highly fact-specific and depends on the individual's country of origin, domicile timeline, treaty status, Bitcoin holding structure, and family circumstances. US estate and gift tax situs rules for Bitcoin are unsettled; IRS guidance may change. Section 679, Form 3520, FBAR, and FATCA compliance requirements are complex and carry severe penalties for non-compliance. Engage a qualified US international tax attorney and CPA well before establishing US domicile. This article discusses general principles of US law only and does not address the laws of any foreign jurisdiction.
Related Reading
- The Complete Bitcoin Estate Planning Guide
- Bitcoin Expatriation and Exit Tax: Renouncing US Citizenship
- Bitcoin Offshore Foreign Asset Protection Trust (FAPT)
- Bitcoin Dynasty Trust: Multi-Generational Wealth Preservation
- Bitcoin GST Exemption Allocation Guide
- Which Bitcoin Estate Planning Structure Is Right for You?