Non-US Investors: Use Irish UCITS ETFs for the Nasdaq-100 to Avoid US Estate Tax

In 30 seconds: If you’re not American but hold US-situs assets (QQQ, SPY, VOO, US stocks, US REITs) through a US broker, then on death the amount above a $60,000 exemption can be taxed up to 40% by US estate tax. This isn’t a return problem — it’s a structural error. The fix isn’t to abandon the US market, but to change the legal structure: buy Irish-registered UCITS ETFs that track the same Nasdaq-100, with zero estate-tax exposure.¹

The biggest hidden risk: a $60,000 exemption

As a Non-Resident Alien (NRA) holding US-situs assets, your US estate-tax exemption is only $60,000, with up to 40% above that. And the inheritance process is brutally complex — local court notarization, translation, US embassy notarization, hiring a lawyer, probate — usually 6–12+ months, so many non-US heirs simply abandon the estate.¹

Note: this depends not on what you buy but on whether the account is under US regulation. Even an Ireland-domiciled fund, if held at an SEC-regulated broker (IBKR, Moomoo, Tiger, Firstrade, Charles Schwab…), goes through US estate-tax inheritance.¹

Taiwan’s sub-brokerage (複委託) currently has no US estate-tax issue — the US account is registered in the bank’s name, not the individual investor’s.¹

The fix: UCITS ETFs — a different legal structure

Mature long-term investors don’t avoid the US out of fear; they use “non-US registered” ETFs to keep investing in the best US companies: Ireland- or Luxembourg-domiciled UCITS ETFs.¹

• Still track the Nasdaq-100;
• Legally Non-US Situs, entirely outside US estate tax;
• Same returns from US tech giants, but zero estate-tax risk.

UCITS (Undertakings for Collective Investment in Transferable Securities) is the EU’s top-tier fund framework. Whether “UCITS” appears in the ETF name is the dividing line for US estate tax.¹

2025 top pick: iShares Nasdaq-100 UCITS (CNDX)

James’s first choice for non-US investors — iShares NASDAQ 100 UCITS ETF (BlackRock, Ireland):¹

Item	Detail
Domicile	Ireland
TER	~0.33%/yr
AUM	~$16.2B (largest, most liquid)
ISIN	IE00B53SZB19
Tickers	CNDX (LSE, USD, most recommended) / SXRV (Xetra, EUR)

Alternatives: Invesco EQQQ (Ireland, oldest; distributing EQQQ / accumulating EQAC), Xtrackers XNAS (DWS). James compared CNDX / EQAC / XNAS — returns are similar, each leading in different windows.¹

Accumulating vs. distributing

• Accumulation phase, long-term investor → Accumulating (e.g. CNDX): dividends roll into NAV, no cash paid, no dividend tax — highest long-term compounding efficiency.
• Need cash flow → consider Distributing (e.g. EQQQ), but watch each country’s dividend tax.¹

Practical notes

Buying European-listed ETFs via a US broker (e.g. IBKR): enable the relevant market (LSE / Xetra) permissions; these are European-listed ETFs, not US stocks; prefer USD-denominated (CNDX) to avoid FX drag. Most US domestic brokers (Firstrade, Schwab) don’t offer UCITS ETFs — use an international broker.¹

James’s summary: the biggest investment risk was never market volatility — it’s choosing the wrong system at the start.

⚠️ Tax and regulation vary by nationality, residence, and broker, and change over time. Summarized from CLEC for education only — not tax or investment advice; consult a local professional.

Footnotes

1. CLEC James, “Why non-US investors should use UCITS ETFs for the Nasdaq-100.” Converted source: raw/docs/教學資料/【為什麼非美國投資人，更應該用 UCITS ETF 投資納斯達克 100？】 .docx. ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰