The §877A Exit Tax Playbook
"Renouncing is the easy part. The IRS taxes every unrealized gain you've ever had — as if you sold everything the day before you left."
The 60-second pitch
The US is one of only two countries that taxes its citizens on worldwide income — and the only one with an aggressive exit tax on the way out. When a US citizen renounces, or a long-term green-card holder (eight of the last 15 years) surrenders the green card, IRC §877A treats every asset they own as sold for fair market value on the day before expatriation. The resulting net mark-to-market gain is taxed at then-current rates.
You only owe the exit tax if you're a "covered expatriate" — meaning you trip any one of three tripwires:
- Income test: 5-year average US net income tax > $211,000 (2026 inflation-adjusted).
- Net-worth test: Net worth ≥ $2,000,000 on the date of expatriation.
- Certification test: Failure to certify 5 years of US tax compliance on Form 8854.
If you trip any tripwire, you're covered — and the mark-to-market hits. The 2026 exclusion is $910,000 of net deemed-sale gain. Above that you pay capital-gains rates (or ordinary rates on IRD-like items). Deferred comp, IRAs, and grantor trusts have their own non-MTM rules.
Planning is everything. The right combination of pre-expatriation gifting (within the lifetime $15M exemption, permanent under OBBBA), staggered renunciation timing, and IRA-vs-distribute decisions can take a $4M exit tax to under $500K — or to zero.
Real-world example
The setup. David, US citizen, age 51, lives in Lisbon (already a Portugal NHR resident). He wants to renounce US citizenship and end FATCA / FBAR / GILTI overhead for the rest of his life. He's clearly a "covered expatriate" — net worth $12M, 5-year avg US tax $312K (both tripwires hit).
Asset inventory (pre-planning, 2025).
- US brokerage: stocks & ETFs with FMV $5.4M / basis $1.6M → $3.8M unrealized gain
- Founder shares in his exited company (sold 2023, all cash now in brokerage; already taxed at sale)
- US 401(k): $1.1M (deferred comp — special rules, not MTM)
- Roth IRA: $620K (deferred comp — special rules)
- Bitcoin: FMV $2.3M / basis $80K → $2.22M unrealized gain
- Portugal apartment: FMV $1.6M / basis $1.4M → $200K unrealized gain (foreign real estate is MTM under §877A)
- Cash, bank accounts, no-gain items: $1.0M
Naive path (no planning). Total deemed-sale gain across MTM assets: $3.8M + $2.22M + $0.2M = $6.22M. Less §877A(a)(3) exclusion (2026: $910K) = $5.31M taxable. At 23.8% LTCG + NIIT-equivalent rate ≈ $1.26M exit tax. The 401(k) and Roth are not MTM; deferred-comp rules apply (30% withholding on future distributions for the 401(k); Roth taxed on distribution as ordinary).
Planned path (24 months of pre-expatriation moves).
- Gift Bitcoin to children/spouse before expatriation. David gifts $2.0M of his BTC to his wife (non-US-citizen — uses the §2523 annual non-citizen-spouse exclusion, carving the gift carefully into pieces under that limit across 2 years), and the rest to his adult kids via his $15M lifetime gift exemption (permanent under OBBBA). Gift = stepped-down US tax base for §877A. (Donor basis carries over to donee — they'll pay tax when they sell, but they may live abroad/lower-tax jurisdictions.)
- Harvest losses in brokerage. David sells loss positions in 2025 to net against gains, leaving brokerage with $1.8M of unrealized gain instead of $3.8M.
- Distribute and convert deferred comp strategically. Roth conversions in 2024–2025 from a portion of the 401(k) before expatriation lock in ordinary-rate tax now (at lower bracket from the 5-year income test, also helping the income tripwire) and the Roth can be distributed post-expat under the 30% NRA withholding tax rate — sometimes lower than US ordinary rates.
- Set the expatriation date strategically. Renounce mid-year so the partial pre-renunciation US-resident year has minimal income.
Result. Remaining MTM gain at expatriation date: $1.8M (brokerage) + $0.22M (BTC retained) + $0.2M (real estate) = $2.22M. Less §877A exclusion $910K = $1.31M taxable. At 23.8% = ~$312K exit tax.
Important. Pre-expatriation gifts are NOT free. They count against David's $15M lifetime gift & estate exemption (or trigger gift tax if exceeded). And they only help on the §877A side because they reduce his expatriation-date asset base — not because they avoid US tax on the gain (which will eventually be paid by the donee).
The step-by-step checklist
- Confirm you are subject to §877A. Applies to: (a) US citizens who renounce, (b) "long-term residents" who lose green-card status — defined as a lawful permanent resident in 8 of the prior 15 tax years.
- Run the three tripwire tests. Income (> $211K avg 2026), net worth (≥ $2M), and 5-year compliance certification on Form 8854 Part IV. Trip any one → "covered expatriate."
- Inventory every asset worldwide. US and foreign brokerage, real estate, private business interests, crypto, art, jewelry, foreign pensions, life insurance with cash value, partnership interests, royalties, intellectual property. Engage appraisers for hard-to-value items.
- Categorize assets by §877A treatment:
- Mark-to-market (default §877A(a)): publicly-traded securities, real estate, business interests, crypto, foreign mutual funds — deemed sold at FMV the day before expatriation.
- Eligible deferred comp (§877A(d)(1)): US qualified plans, 401(k)s, US pensions. Elect to have continued treatment as US-source; 30% NRA withholding on distributions post-expatriation. Item NOT marked to market.
- Ineligible deferred comp: Most foreign retirement plans, non-qualified deferred comp without payor agreement. Deemed distributed at expatriation date at FMV — full ordinary income hit now.
- Specified tax-deferred accounts (§877A(e)): IRAs, 529 plans, HSAs — deemed distributed at expatriation date; ordinary tax now (no 10% early-distribution penalty).
- Interests in non-grantor trusts (§877A(f)): 30% withholding on future distributions of the gain attributable to the covered expatriate; not MTM.
- Pre-expatriation gifts. Use the lifetime gift exemption (2026: $15M, permanent under OBBBA) to gift appreciated assets to spouse, children, or trusts BEFORE the expatriation date. Reduces §877A base; donee inherits donor's basis (no step-up).
- Loss-harvest the year before expatriation. Sell losers to net against unrealized gains that will get marked to market.
- Time the renunciation date. Mid-year renunciation can split the year into pre-expat (US resident, all income taxed) and post-expat (NRA — only US-source taxed). Choose timing that minimizes pre-expat US-source income.
- Roth conversion strategy. For some, converting traditional 401(k)/IRA to Roth pre-expat at moderate ordinary rates is cheaper than the §877A deemed-distribution treatment.
- File Form 8854. Initial Information Statement for the year of expatriation (Parts I–V). Then Annual Form 8854 every subsequent year if you elected deferral on the exit tax (§877A(b) deferral option, with bond / collateral requirement).
- File final US tax return. 1040 for the pre-expatriation portion + 1040-NR for the post-expat portion of the year of expatriation (dual-status return). Include §877A computation on Schedule D.
- Visa department exit. File Department of State DS-4080 / DS-4081 (Oath of Renunciation). The expatriation date for §877A purposes is generally the date of the Oath OR the date of issuance of the Certificate of Loss of Nationality (CLN), whichever is later in some readings.
- Pay the $2,350 USCIS renunciation fee. Plus any embassy / consulate scheduling. Plan 6–12 months for embassy appointment availability outside the US.
- Estate planning post-expatriation. §2801 imposes a transfer tax on gifts/bequests received from a covered expatriate by a US person — at the highest gift/estate rate (40%). Plan transfers to US relatives carefully.
IRS code & authority
- IRC §877A Mark-to-market tax on covered expatriates. Enacted by the HEART Act of 2008, applies to expatriations after June 17, 2008.
- IRC §877A(a)(3) The exclusion amount — adjusted annually for inflation. 2026: $910,000.
- IRC §877A(d) Eligible deferred compensation items — special treatment (30% NRA withholding on distributions instead of MTM).
- IRC §877A(e) Specified tax-deferred accounts (IRAs, 529s, HSAs) — deemed distributed at expatriation.
- IRC §877A(f) Interest in a non-grantor trust — special MTM withholding on future distributions.
- IRC §877A(g)(1) Covered expatriate tests — income (> $211K avg 2026), net worth (≥ $2M), or non-certification.
- IRC §877 Predecessor "alternative tax regime" rules — still relevant for some pre-2008 expatriations.
- IRC §2801 Transfer tax on gifts and bequests received by US persons from covered expatriates — 40% rate, paid by the US recipient.
- IRC §7701(a)(50) Definition of "expatriate" for tax purposes.
- IRC §7701(b)(6) Definition of "long-term resident" — green-card holder for at least 8 of last 15 tax years.
- Form 8854 Initial & Annual Expatriation Statement. Must be filed for the year of expatriation and every subsequent year until deferred §877A tax is paid.
- Notice 2009-85 The primary IRS administrative guidance on §877A computation, deferred-comp rules, and deferral election mechanics.
- DS-4080 / DS-4081 Department of State Oath of Renunciation forms (not IRS — but the date drives §877A).
- USCIS Renunciation Fee Currently $2,350 per renunciation.
Audit risk flags
- Failure to file Form 8854. Without filing, you automatically fail the certification tripwire — making you a covered expatriate regardless of net worth or income. Plus $10,000 information-return penalty. Defense: File Form 8854 in the year of expatriation, on time, with all schedules. File annual 8854 if any deferral election was made.
- Undervalued private business interests. The IRS challenges low FMVs on closely-held company stock at the expatriation date. Defense: Obtain a qualified business appraisal (409A-style) within 60 days of the expatriation date; document discounts for lack of marketability / minority.
- Crypto valuation date / cost basis chaos. Self-custodied crypto with shaky basis records, hardware-wallet transfers, mining/staking accruals — all subject to MTM at expatriation. Defense: Reconcile every wallet to a basis tracking system (CoinTracker / Koinly) BEFORE the expatriation date.
- Pre-expat gifts treated as "incomplete." Gifts to family in the final 6 months that don't comply with state-law transfer requirements (signed deed, delivery, donee acceptance) can be unwound as "incomplete," restoring the §877A asset to the donor. Defense: Real, completed transfers — title changes, brokerage account transfers, recorded deeds — well before the expatriation date.
- Deferral election bond requirements. §877A(b) lets you defer the tax on each MTM asset until actual sale — but requires posting "adequate security" (usually US-situs collateral or a bond) and waiver of treaty benefits on that gain. Most expats can't afford the collateral. Defense: Plan to pay the exit tax in cash; do not assume deferral will be practical.
- Spouse not coordinated. If both spouses expatriate, both compute §877A separately. Gifts between spouses with one renouncing and one staying US-citizen complicate the §2523 / unlimited marital deduction. Defense: Sequence renunciations and gifts with a tax attorney; don't both renounce in the same week without modeling.
- §2801 surprise to US heirs. After expatriation, gifts/bequests to US relatives are hit with 40% transfer tax under §2801 — paid by the US recipient. Many expats only learn of this when their grandchildren receive a $400K inheritance and owe $160K. Defense: Educate heirs; consider passing assets to non-US donees or restructuring through trusts.
- Reentry restrictions. The Reed Amendment (8 USC §1182(a)(10)(E)) allows the AG to bar former US citizens who renounced "for tax avoidance" from reentering. Rarely enforced, but conceptually exists. Defense: Don't tell the State Department your reason was tax. Stick to lifestyle / family / political reasons.
When NOT to do this
- Your net worth is under $2M, your 5-yr avg US tax is under $211K, and your records are clean. You're not a covered expatriate. The exit tax doesn't apply. Just file 8854 and walk away clean.
- You can solve the problem with FEIE / FTC / treaty election instead. Renunciation is irreversible. If foreign-earning expat strategies (FEIE + FTC + treaty election + Puerto Rico) get you to acceptable ongoing US tax, renouncing is overkill.
- You have minor US-citizen children. Custody / future inheritance / education planning all get more complex. §2801 hits future gifts to them. Get attorney advice before pulling the trigger.
- You haven't filed US taxes the last 5 years. You'll automatically fail the certification tripwire. Catch up first via streamlined filing procedures (offshore or domestic), then plan the expatriation.
- You hold US-situs estate-tax assets you want to retain. Post-expatriation, your estate-tax exemption drops to $60K (NRA). Real estate, stock in US corporations, and other US-situs assets get taxed at 40% at death over $60K. Plan accordingly or expatriate without these holdings.
- You don't have a second passport yet. Don't renounce until you have an alternate citizenship secured. Statelessness is a real risk.
- You're emotional / making the decision quickly. The CLN takes months to process; the tax decision is permanent. Take 12–24 months to model, plan, and decide.
Model your §877A exit tax before you decide
PilePilot's Books agent aggregates your worldwide asset positions, computes the §877A MTM gain at your projected expatriation date, models pre-expat gifting scenarios, and produces the Form 8854 attachment data — built for small businesses for the founder-renunciation use case.
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Disclaimer. This page is educational and not tax advice. Renunciation is irreversible and the §877A computation involves valuation, sourcing, gift-tax, and estate-tax interactions that turn on individual facts. The 2026 exclusion amount ($910,000) and income tripwire ($211,000) are indexed annually — verify before filing. Engage both a US tax attorney and a tax professional experienced with covered expatriations before any irrevocable step.