The short version: Switzerland flips the usual expat rule
The Foreign Earned Income Exclusion (FEIE, Form 2555) lets you exclude up to $132,900 of foreign earned income from US taxable income for 2026 ($130,000 for 2025), using either the Bona Fide Residence Test or the Physical Presence Test (330 full days in any 12-month period). The Foreign Tax Credit (FTC, Form 1116) instead gives you a dollar-for-dollar credit for foreign income taxes you paid or accrued. In most US expat destinations, the FEIE is the default. Switzerland is different: in high-tax cantons, the FTC usually wipes out your US bill, preserves refundable child tax benefits and builds a 10-year carryforward. In low-tax cantons, the FEIE or a hybrid often shelters more.
FEIE (Form 2555): what it excludes and what it doesn't fix
The FEIE only applies to foreign earned income — wages, salaries, professional fees and self-employment earnings from work performed abroad. It does not cover passive income, such as interest, dividends, capital gains or rental income, and it never covers US-source income. Excluded income still sits on top of your other income to set your marginal tax bracket, a rule known as the stacking rule. The election also opens a separate Foreign Housing Exclusion for qualifying housing costs.
- US self-employment tax (SECA, roughly 15.3% — 12.4% Social Security plus 2.9% Medicare).
- Passive income and US-source income; these remain fully taxable regardless of the FEIE.
- IRA or Roth contributions: FEIE-excluded income does not count as compensation for contribution eligibility.
- The refundable portion of the Child Tax Credit: the refundable amount is 15% of earned income above $2,500, so excluding income below that threshold can wipe it out — while the FTC preserves it, up to $1,700 refundable per child in 2026.
FTC (Form 1116): the dollar-for-dollar credit
The FTC is a credit for genuine foreign income taxes, not foreign social-insurance or wealth taxes. It applies across earned and passive income categories, so it can offset US tax on Swiss salary, interest, dividends, capital gains and rental profit. Excess credits can be carried back one year and forward ten years. One hard limit: the FTC cannot offset the 3.8% Net Investment Income Tax under the 2026 Federal Circuit ruling — we explain that in Foreign Tax Credits Can't Offset NIIT: 2026 Ruling and Swiss Impact.
High-tax cantons vs low-tax cantons: the decision map
Public tax data puts Swiss effective income tax at roughly 22% in low-tax cantons such as Zug, Schwyz and Nidwalden, and over 43% in Geneva. High-tax cantons — Geneva, Vaud, Bern, Zurich and much of western Switzerland — tend to exceed US federal rates. In those cantons, the FTC often fully offsets your US tax bill and can build a 10-year carryforward while preserving the refundable Child Tax Credit. In low-tax cantons, a pure FTC may leave a small US balance due; the FEIE or a hybrid often shelters more.
$132,900
FEIE exclusion limit for tax year 2026
High-tax canton rule of thumb
If your Swiss effective income tax rate is clearly above your US federal rate, start your analysis with the FTC, not the FEIE. The FTC preserves refundable child credits and builds carryforward room; the FEIE cannot do either.
The 5-year FEIE revocation lock-out
The FEIE election is sticky. It continues automatically in future years unless you formally revoke it. Once you revoke, you generally cannot re-elect the FEIE for five tax years without IRS approval. That lock-out makes the initial choice material: if you are moving from a low-tax canton to a high-tax canton or planning to have kids in Switzerland, the FTC may be the more flexible long-term default.
Revoke deliberately
Do not revoke the FEIE casually while exploring the FTC. If your circumstances change — a move to a high-tax canton, a new child, or a shift to passive income — the five-year lock-out can leave you with no FEIE option in a year you want it.
Hybrid approaches and common Swiss quirks
Many Americans use a hybrid: FEIE up to the cap on earned income, FTC on the income above the cap and on passive income. Swiss rules create uneven results. The refundable 35% Verrechnungssteuer withholding tax is not creditable because it is reclaimed on your Swiss return, not an income tax. Swiss wealth tax and AHV/IV/ALV social-insurance contributions are also not creditable. For how source withholding works, Quellensteuer for Americans in Switzerland: How Swiss Withholding Tax Works and What You Report to the IRS explains the mechanics.
Self-employment and the Totalization Agreement
Neither the FEIE nor the FTC reduces US self-employment tax. If you are self-employed in Switzerland, the practical path is the US-Swiss Totalization Agreement plus a Certificate of Coverage confirming you are covered by Swiss AHV instead of US Social Security.
Next step: turn this into a one-page decision
The FEIE-versus-FTC decision depends on your canton, your mix of earned and passive income, your family situation and whether you are self-employed. This is one of the few cross-border tax choices where running the numbers both ways is worth the effort. If your situation crosses any of the boundaries above, get personal advice.