Hong Kong

Tax-deferred employer plans

The Mandatory Provident Fund (MPF) is Hong Kong's mandatory retirement savings system. Employer and employee each contribute 5% of salary (up to the maximum relevant income). MPF schemes are trust arrangements managed by approved MPF trustees. The exemption is available only to an ‘eligible individual’ under §5.02: someone who is compliant (or comes into compliance) with U.S. income-tax filing and has reported the plan’s contributions, earnings, and distributions as income to the extent U.S. law requires; a participant who never reported plan earnings cannot rely on it until they do.

§301.7701-7 classification: Foreign trust. MPF schemes are trusts under Hong Kong law, administered by Hong Kong-licensed trustees, and supervised by the Mandatory Provident Fund Schemes Authority (MPFA). Failing either test makes a trust foreign; these fail the court test (and the control test as well).

Rev. Proc. 2020-17 analysis: Rev. Proc. 2020-17 does not require a treaty, so the absence of a U.S.–Hong Kong treaty does not by itself disqualify the MPF. MPF's ordinary withdrawal grounds (age 65, early retirement at 60, total incapacity, terminal illness, and death) fit Section 5.03(5). The difficulty is the permanent-departure ground: MPF allows full withdrawal on a declaration of permanent departure from Hong Kong, with no penalty, and departure from the jurisdiction is not among the early-withdrawal reasons the revenue procedure expressly permits (in-service loans, hardship, education, primary-residence purchase). This may prevent MPF from satisfying Section 5.03(5). ORSO schemes commonly pay vested benefits on termination of employment, which raises the same issue more directly. No IRS guidance addresses either scheme.

Treaty provisions: There is no U.S.–Hong Kong income tax treaty, so no treaty-based deferral is available for MPF earnings. This is a separate question from the Rev. Proc. 2020-17 reporting exemption.

3520/3520-A treatment: File Form 3520-A and Form 3520 Part II annually for the part your own contributions fund, once your own contributions exceed the employer’s, counted as the note at the end of this section explains (Treas. Reg. §1.402(b)-1(b)(6)), or for any part you otherwise own. Report employer and employee contributions, net investment return by fund, and the opening/closing balance. Withdrawals (at age 65, permanent departure, or other qualifying events) go on Part III unless reported as compensation income (see the note at the end of this section).

ORSO schemes (Occupational Retirement Schemes): Some employers maintain ORSO schemes instead of or in addition to MPF. ORSO schemes may be governed by a trust or regulated by an insurance arrangement; trust-governed schemes are foreign trusts, while insurance-based schemes raise the same open classification question as insurance contracts elsewhere. ORSO schemes may offer defined benefit or defined contribution structures. The reporting obligations are the same as for MPF.

For a plan an employer contributes to, a trust holding it is generally a nonexempt employees’ trust described in §402(b). §6048(a)(3)(B)(ii) excepts transfers to §402(b), §404(a)(4), and §404A trusts from Part I, the participant’s own contributions included, and §679 does not make the participant the owner (see the Reporting Guide’s employer-plan section). Payouts the participant reports as compensation income are excepted from Part III. If the participant’s own contributions ever exceed the employer’s, the participant is treated as the owner of the part those contributions fund (Treas. Reg. §1.402(b)-1(b)(6)), reports it on Part II and Form 3520-A each year it is owned, and is taxed on its income each year. In that count, what the participant chose to put in, salary sacrifice included, is the participant’s, and anything the plan’s rules required taken from pay is the employer’s, as the IRS chief counsel read a national retirement fund in 1997. The rest is taxed when it vests and, after that, when paid out (§402(b)(1), (2)).

PFIC rules

MPF schemes offer a menu of constituent funds: equity, mixed asset, bond, money market, and the Default Investment Strategy (DIS). PFIC rules (IRC §1291–§1298) may apply to the non-U.S. pooled vehicles some of these funds invest in; we do not determine PFIC status or whether Form 8621 is due.

Gifts and inheritances

Hong Kong abolished estate duty for deaths on or after 11 February 2006 (Revenue (Abolition of Estate Duty) Ordinance 2005) and does not impose gift tax. U.S. persons with family ties to Hong Kong may receive substantial gifts or inheritances. If a U.S. person receives more than $100,000 in gifts or bequests in a year from one nonresident alien individual or foreign estate (adding together gifts from donors related to each other), Form 3520 Part IV reporting is required. Gifts from foreign corporations or foreign partnerships exceeding $20,573 (for 2026, indexed for inflation) are also reportable.

Common scenarios include gifts from parents, inheritance of Hong Kong property, and distributions from family-controlled entities or trusts.

Penalties and practical notes

MPF trustees provide annual benefit statements showing contributions, investment returns by fund, fees, and year-end balances. These are generally sufficient for 3520-A preparation. Hong Kong's year of assessment runs 1 April to 31 March, and MPF schemes report on their own financial year, so calendar-year conversion is usually needed for the 3520-A.

The HKD is pegged to the USD, so exchange rate variation is minimal.

U.S. persons leaving Hong Kong may withdraw MPF under permanent departure provisions. It goes on Part III unless reported as compensation income (see the employer-plan note above), and is taxable to the extent it includes untaxed earnings.

There is no treaty deferral, but MPF earnings aren’t taxed as they’re earned. Contributions, the mandatory 5% taken from pay included, are taxed when they vest (§402(b)(1)), and growth after that when paid out, under §72 (§402(b)(2)). Earnings are taxed each year only on a part the member owns, which takes voluntary contributions above the employer’s total, or for a highly compensated employee in a scheme that leaves many rank-and-file employees out (§402(b)(4)(A)).