A net operating loss (NOL) lets you carry a loss year forward to lower a future tax bill. The basic rule is the same for every taxpayer, but if you have foreign income, the loss can interact with your return a little differently. Here's the simple version.

Meeting a residency test in two countries is one problem. Having both countries actually assess tax on you as a resident, in the same year, is a different and more urgent one. When that happens, you're no longer just planning around the rules — you're in an active dispute, and the clock on how you respond matters as much as the facts themselves.

If you split your time between the U.S. and another country — or moved abroad but kept ties back home — you may meet the legal test for tax residency in both places at once. Dual residency is not automatically a problem, but it is a warning sign that your U.S. filing could be wrong if it is not addressed, and it can lead to the same income being reported as taxable in two countries with no relief unless you claim it correctly.

Every cross-border tax question eventually collapses into the same underlying issue: is this dollar of income U.S.-source or foreign-source? It sounds like a formality, but the answer drives some of the most consequential numbers on an international return — the foreign tax credit limitation under IRC §904, whether a nonresident alien owes U.S. tax at all under §871 or §882, which income falls into which FTC “basket,” and how a tax treaty's sourcing tie-breakers apply.

If your Green Card has expired, or you're starting to think about giving it up for good, there's one myth we need to clear up right away: a plastic card expiring is not the same thing as ending your U.S. tax residency.

Should you amend a tax return — or wait? In domestic filings, corrections are often straightforward. But when foreign income or international reporting is involved, the decision becomes more strategic. Missed foreign income, FBAR filings, and forms like 8938, 5471, or 3520 can carry penalties even if no tax is owed. This article explains when amending reduces risk, when waiting makes sense, and why international corrections require careful evaluation before taking action.