China’s new individual income tax rules on offshore trusts are approaching their first hard deadline, and the compliance window is reviving a separate question for Hong Kong-based families: whether a relative’s US green card, a gift from abroad, or a family trust creates its own US tax exposure on top of anything owed in China.
China’s Ministry of Finance and State Taxation Administration announced in July 2026 that individual income tax would apply to assets placed in offshore trusts and the income those trusts generate, with unpaid tax from existing arrangements due within a 90-day grace period. That window closes on October 22, 2026. Offshore trusts are a structure widely used by shareholders of Hong Kong- and US-listed Chinese companies, according to BofA Securities China Equity Strategist Winni Wu, speaking to Reuters. Wu said the deadline gives markets “roughly a month to see the actual impact,” and that while the tax could create event risk around individual stocks — Hong Kong hotpot chain Haidilao’s major shareholder sold HK$2.75 billion of shares this month amid related tax-payment speculation — it is unlikely to be a dominant driver for the Hong Kong market as a whole. Wu added that some of the tax bills involved are large enough that affected owners are likely to negotiate payment terms with local tax bureaus rather than settle immediately in cash.
Separately from China’s own enforcement, a Forbes explainer published October 13 by US international tax attorney Virginia La Torre Jeker lays out why the two main cross-border information-exchange systems — the OECD’s Common Reporting Standard (CRS), in which Hong Kong participates alongside more than 100 other jurisdictions, and the US’s FATCA, which the US does not reciprocate under a CRS-style arrangement — do not automatically share the same data with each other. CRS can expose trust-related accounts and controlling persons to Chinese tax authorities; FATCA separately requires foreign financial institutions to identify and report US persons tied to foreign trusts, companies or accounts to the IRS. The practical effect, per Jeker, is that a family’s China-side offshore tax exposure and any US tax exposure are assessed under different, overlapping systems — not one combined check.
Jeker’s piece flags several specific US triggers worth checking per family member: gifts above US$100,000 from a non-US relative generally must be reported on Form 3520 even though the gift itself isn’t taxable income; a US green card does not stop counting for US tax residency purposes just because it has expired or its holder has moved back to China or Hong Kong — it must be formally relinquished via Form I-407; foreign bank accounts exceeding US$10,000 in aggregate may require an FBAR filing, and larger foreign assets may trigger FATCA’s Form 8938; and foreign companies with US-person owners can require additional filings (Forms 926, 5471, 8865 or 8858) and may create current US tax even without distributed profits. Former green-card holders who qualify as long-term residents (eight of the past 15 years) can also face exit-tax consequences under Section 877A on expatriation. Jeker’s piece does not specify how far back China’s own look-back period for historic trust arrangements reaches, saying only that “the scope of China’s look-back period remains unclear.”
References
Forbes – China’s Offshore Tax Crackdown: What CRS, FATCA & U.S. Ties Mean Now / The Standard (Hong Kong) – China’s offshore trust tax crackdown could impact single stocks, BofA says
