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 you're a U.S. person receiving income from abroad, or a foreign person earning income connected to the U.S., withholding rules can catch you off guard. Getting the basics right now can prevent notices, penalties, and cash-flow surprises later.

If you're holding Bitcoin, Ethereum, or other digital assets on an exchange based outside the U.S. — Binance, a Hong Kong or Singapore-based platform, or an exchange tied to your home country — you may be sitting on a reporting obligation you haven't thought about. Crypto feels borderless, but the IRS and FinCEN don't see it that way. Where your exchange is legally domiciled matters, and getting it wrong can mean penalties that have nothing to do with whether you owed any tax

Own a condo in Manila, a flat in London, or a rental house in Guadalajara? If you're a US citizen, green card holder, or resident alien, the IRS wants to hear about the rent you collect on it — no matter where that property sits or what currency the rent shows up in. Here are the basics of reporting foreign rental income correctly, so a straightforward income stream doesn't turn into a compliance headache.

Passive activity loss rules quietly limit how much rental and passive losses you can deduct each year. This week's Tax Tip Tuesday breaks down the income phase-outs, Real Estate Professional Status traps, and documentation gaps that turn a legitimate loss into an audit flag.

Cryptocurrency and foreign exchange icons with tax documents — MKHS Tax Group blog on crypto enforcement and foreign reporting If you hold cryptocurrency — especially on a foreign exchange — 2026 is the year the IRS's visibility into your activity changed dramatically. Between new broker reporting rules and an evolving stance on foreign account disclosures, the assumptions many crypto holders have relied on for years no longer hold up. Here's what's actually changed, and what

Most business owners have never heard of the Augusta Rule — a tax provision that lets you rent your own home to your business for up to 14 days a year, with the rental income excluded from your personal taxes entirely. This week's Tax Tip Tuesday breaks down how it works, who qualifies, and why the size of your home changes the math.