U.S. Exit Tax and Swiss Occupational Pension Plans (LPP)

Tax Implications for International Clients and Wealth Planning Considerations Upon Renunciation of U.S. Citizenship

1. Legal Framework of the Exit Tax (IRC §877A)

Renouncing U.S. citizenship constitutes a major taxable event under U.S. federal tax law. The “exit tax,” codified in Internal Revenue Code (“IRC”) §877A, is designed to impose immediate taxation on certain unrealized gains and accrued economic rights prior to expatriation. The legislative objective is to prevent individuals from leaving the U.S. tax system with wealth that has economically accrued while subject to U.S. taxing jurisdiction but has not yet been taxed.

The application of this regime first requires that the individual qualify as a “covered expatriate” within the meaning of IRC §877(a)(2), as referenced in §877A(g)(1). Three alternative tests apply: a net worth test, an average income tax liability test, and a tax compliance certification test. The net worth test is satisfied if the individual’s worldwide net worth equals or exceeds USD 2 million on the expatriation date. The income tax liability test applies if the individual’s average annual U.S. federal income tax liability for the five preceding years exceeds the indexed threshold (approximately USD 206,000 for 2025). Finally, failure to certify compliance with U.S. federal tax obligations for the five preceding years independently results in covered expatriate status.

These tests are disjunctive; satisfying any one of them is sufficient. In practice, the net worth test is often determinative.

2. Inclusion of the Swiss LPP Plan in the Net Worth Test (IRC §877(a)(2)(B))

2.1 Inclusion of Worldwide Assets

The net worth test requires inclusion of all worldwide assets at their fair market value as of the expatriation date. Notice 2009-85 clarifies that interests in foreign retirement plans must be included in this calculation.

2.2 Property Nature of the Swiss LPP Plan

From a U.S. tax perspective, a Swiss LPP plan constitutes an “interest in property.” It represents an individualized economic right consisting of accumulated retirement capital derived from employer and employee contributions, a transferable vested termination benefit, and the right to convert accumulated capital into either a lump sum or an annuity at retirement. The fact that the capital is generally payable only upon retirement and is subject to Swiss regulatory restrictions does not affect its inclusion in the net worth test. IRC §877(a)(2)(B) does not distinguish between liquid and illiquid assets.

2.3 Determination of Fair Market Value

The central technical issue concerns the determination of fair market value. Where the plan operates as an individualized account with determinable accumulated capital — which corresponds to the dominant structure of Swiss LPP arrangements — the amount stated on the pension certificate generally represents the most reliable indicator of economic value. If the plan provides for a vested termination benefit equal to the accumulated capital and that capital is also payable upon death, there is no meaningful risk of forfeiture. In such circumstances, any actuarial discount to reduce the value of the plan would be difficult to justify.

In practice, for many international executives and professionals, the LPP capital alone exceeds USD 2 million, thereby mechanically satisfying the net worth test.

3. Characterization of the Swiss LPP Under IRC §877A(d)

3.1 Exclusion from the General Mark-to-Market Regime

If the individual qualifies as a covered expatriate, the Swiss LPP plan is not subject to the general mark-to-market regime under IRC §877A(a). Instead, it is governed by the specific rules applicable to “deferred compensation items” under IRC §877A(d).

3.2 Classification as Ineligible Deferred Compensation

Foreign pension plans are included within the definition of deferred compensation items under IRC §877A(d)(4) and Notice 2009-85. The statute distinguishes between “eligible deferred compensation” and “ineligible deferred compensation.” A Swiss LPP plan is generally classified as “ineligible deferred compensation,” because the pension institution is not a U.S. person and does not make the election contemplated under IRC §877A(d)(1)(C).

3.3 Deemed Distribution on the Day Before Expatriation

Under IRC §877A(d)(2)(A), the present value of the accrued benefit is treated as distributed in full on the day before the expatriation date. Where the plan qualifies as an account balance plan within the meaning of Treas. Reg. §1.409A-1(c)(2), Notice 2009-85 provides that the present value corresponds to the account balance. This deemed distribution constitutes ordinary income.

4. Character of Income and Applicable Tax Rate

The deemed distribution is included in gross income in the taxable year that includes the expatriation date. It is taxed at ordinary income tax rates under IRC §1, potentially reaching the top marginal federal rate of 37%. It does not benefit from the mark-to-market exclusion amount provided under IRC §877A(a)(3), nor does it receive capital gains treatment. The financial impact can therefore be substantial where the LPP capital is significant.

5. U.S. Tax Basis in the Swiss LPP Plan

5.1 General Principle

Although IRC §877A(d) requires inclusion of the present value of the accrued benefit, general U.S. tax principles continue to apply. Amounts that have previously been included in U.S. taxable income cannot be taxed again. Accordingly, a U.S. tax basis may exist in the Swiss LPP plan and reduce the taxable amount of the deemed distribution.

5.2 Contributions Previously Subject to U.S. Taxation

A U.S. tax basis may arise if employer contributions were included in the individual’s U.S. gross income or if employee contributions were made from income that was already subject to U.S. taxation.

From a U.S. tax law perspective, U.S. persons are generally required to include employer contributions to a foreign pension plan in their taxable income, unless a specific deferral provision applies — which is typically not the case for Swiss LPP plans. Correspondingly, employee contributions to an LPP plan are generally not deductible for U.S. income tax purposes, unlike under Swiss tax law. In other words, both employer and employee contributions may be includible in the U.S. tax base.

Accordingly, if a U.S. taxpayer has properly reported LPP contributions over the years — including employer contributions in gross income and refraining from deducting employee contributions — those amounts constitute U.S. tax basis in the plan. This basis reduces, dollar for dollar, the amount subject to taxation upon the deemed distribution under IRC §877A(d). In cases involving long-term Swiss employment with full U.S. tax compliance, the accumulated basis may be substantial and materially limit exposure to exit tax.

However, in practice, it is frequently observed that U.S. taxpayers residing in Switzerland apply an incorrect tax treatment, deducting employee LPP contributions from U.S. taxable income by analogy to Swiss law and failing to include employer contributions in gross income. In such circumstances, no U.S. tax basis has been created, as the amounts were not actually included in U.S. taxable income. Upon expatriation, the absence of documented basis results in full taxation of the LPP capital under the ineligible deferred compensation regime of IRC §877A(d).

6. Rights Accrued Before Entry into the U.S. Tax System

IRC §877A(h)(2) provides, for certain property held prior to becoming a U.S. resident, a basis adjustment to fair market value as of the date of entry into the U.S. tax system. This mechanism is intended to prevent taxation of appreciation that occurred before the individual became subject to U.S. taxation. However, its application to deferred compensation items is technically complex and depends on the date of entry into U.S. tax residency, the characterization of the plan, and the individual’s historical reporting position.

Conclusion

It is critical to understand that a Swiss LPP pension constitutes an asset fully exposed to the U.S. exit tax regime. It is included in the net worth test under IRC §877(a)(2)(B), treated as ineligible deferred compensation in the case of a covered expatriate, and potentially subject to full ordinary income taxation without immediate Swiss foreign tax credit relief. Accordingly, any planning relating to the renunciation of U.S. citizenship must be preceded by a comprehensive and technically rigorous tax analysis.