Executive Summary: The Alternative Minimum Tax (AMT) continues to be a major trap for high-income US expats in 2026. Despite the OBBBA permanent extensions, the interaction between the Foreign Earned Income Exclusion (FEIE) and AMT mechanics can lead to sudden tax liabilities. We analyze the strategic shift towards Foreign Tax Credits (FTC) to mitigate this risk.
The 2026 AMT Landscape
Following the passage of the One Big Beautiful Bill Act (OBBBA) in July 2025, many of the tax provisions for individuals were made permanent. While this provided much-needed certainty, it also cemented the "Alternative Minimum Tax Trap" that has plagued high-earning US citizens living abroad for years.
OBBBA Permanent Extensions
The OBBBA permanently extended the higher AMT exemption amounts ($85,700 for individuals in 2026), but it also introduced a sharper phase-out. Once your income crosses the threshold, the exemption disappears rapidly, exposing more "tax-preferred" income to a flat 26% or 28% tax rate.
Why the FEIE Can Be a Trap
Most US expats use the Foreign Earned Income Exclusion (FEIE / Form 2555) to exclude up to ~$126,500 of their salary. However, for the purposes of the AMT, the IRS uses a "stacking" rule. This means the excluded income still pushes your *non-excluded* income into higher tax brackets, and importantly, the AMT calculation does not recognize the exclusion in the same way the regular tax system does.
| Mechanism | Foreign Earned Income Exclusion (FEIE) | Foreign Tax Credit (FTC) |
|---|---|---|
| AMT Interaction | Subject to "Stacking Trap" | Directly offsets AMT liability |
| High Income (> $250k) | Limited effectiveness | Highly effective |
| Carryover | None | 10-year carryforward available |
| Audit Risk | Moderate | Low-Moderate (requires proof of taxes paid) |
Mitigation Strategies
- The FTC Pivot: If your income exceeds $200,000, switching from FEIE to FTC (Foreign Tax Credit) often yields a better result because the FTC can reduce AMT dollar-for-dollar.
- Timing Income: Avoiding large RSU vests or bonus payments in the same year as significant capital gains to stay below phase-out thresholds.
- Pension Contributions: Utilizing qualified foreign pension plans that are recognized under US tax treaties to reduce AGI.
The SALT Cap and High-Income Nomads
The OBBBA increased the State and Local Tax (SALT) deduction cap to $40,000 for 2025-2028. For expats who maintain "sticky" ties to high-tax states like California or New York, this provides some relief, but under the AMT, many of these deductions are added back into taxable income, effectively neutralizing the benefit.
Technical Note on Passive Losses
Passive activity losses (such as from foreign rental properties) are often disallowed for AMT purposes even if they are allowed under regular tax rules. This can create a significant discrepancy in tax liability for expats with diverse global portfolios.
Conclusion
The "AMT Trap" is a reminder that US tax citizenship is a worldwide obligation that requires more than just checking a box for the FEIE. In 2026, the strategic use of Foreign Tax Credits and careful monitoring of AMT phase-out thresholds are essential for shielding your wealth from unnecessary erosion. High-net-worth nomads must treat their US tax return as a multi-jurisdictional engineering project, not just a yearly chore.