The personal tax framework has been set: once a family becomes a US tax resident, they report worldwide income to the US — while income sources in Vietnam remain subject to Vietnamese tax under Vietnamese law. Two systems overlap, and one critical detail to understand correctly: Vietnam and the US currently have no active tax treaty to prevent double taxation — meaning there is no automatic treaty shield; all avoidance relies on each country's domestic law mechanisms, primarily the US foreign tax credit.
Good news: for common income streams of entrepreneurial families, domestic law mechanisms handle most of the overlap — if the structure is correct and documentation is complete. This article maps each stream: wages, dividends, business profits, intercompany transactions, real estate — which income bears what tax where, how to avoid overlap, and which structures to avoid from the start. As always: this is a conceptual map; the specific path belongs to the family's two-country accounting team.
Legal Status: No Active Treaty, and What That Means
Vietnam and the US have signed a tax treaty, but the document has not completed the ratification process to become effective — so unlike Vietnamese business people dealing with many other countries (where treaties define taxing rights and provide relief mechanisms), the Vietnam-US pair operates purely on domestic law. Practical consequence: cannot rely on familiar treaty concepts (preferential dividend rates across borders, tie-breaker residency rules...), and the primary US tool is the foreign tax credit — deducting taxes paid in Vietnam against US obligations on the same income stream, within its technical limits.
This status may change in the future — another reason the dual-tax picture should be reviewed annually with an expert rather than set once and forgotten: an effective treaty will significantly redraw several lines on the map below.
Stream 1 — Wages: One Person, Two Sources, Two Withholding Systems
Common configuration: the individual receives a salary from the US branch (withheld through US payroll — clean), and the question arises regarding salary retained at the Vietnam parent company: in principle, that income remains subject to Vietnamese personal income tax under rules for non-residents/residents depending on status, and also goes on the US worldwide income return — the portion of tax paid in Vietnam enters the foreign tax credit pool.
A structural point worth discussing with an expert: after moving to the US, how should compensation from the parent company be structured to align across all three lenses — dual taxation, documentation (maintaining traces of a multinational manager role), and actual cash flow. Many families shift the income structure from the parent company toward dividends rather than wages after moving to the US — each approach has different tax consequences, with no default answer.
Stream 2 — Dividends from the Parent Company: The Main Value Flow to the Family
When a Vietnam company distributes profits to an owner who is now a US tax resident: Vietnam withholds personal income tax on dividends under current rules; the US includes this amount in worldwide income — and the portion of Vietnam tax paid is claimed as a deduction through the foreign tax credit. The net result typically is: total burden approaches the level of the higher-tax system on that line, rather than adding both together — that is the value of the credit mechanism when documentation is complete.
Documentation is the keyword: the tax withholding certificate for dividends from Vietnam (correct name, correct period, correct amount) is mandatory material for the credit — without it, dividends face true double taxation not because of law but because of paperwork. The timing of dividend distributions during the year also matters to the CPA: concentrated or spread, before or after tax milestones, each has real differences.
Stream 3 — Business Profits and Intercompany Transactions: The Corporate Layer
Entity layer: the US branch pays corporate income tax in the US on its profits; the parent company pays in Vietnam — two separate entities, two independent obligations, and the bridge between them is intercompany transactions discussed throughout the operations section: pricing of goods and services between the two (transfer pricing) must be at market rates with documentation, because both tax authorities have the right to challenge a price that shifts profits to the other side — and our foreign parent structure carries the obligation to report related-party transaction information at both ends (Form 5472 on the US side is familiar from the compliance article; Vietnam has its own related-party transaction rules).
One particularly favorable point for the structure where a Vietnam parent company owns a US subsidiary: profits retained by the US branch for reinvestment do not automatically create an immediate tax obligation for Vietnam — the obligation arises only when profits are distributed; the plan to retain or distribute is therefore a genuine strategic variable in the dual-tax equation, requiring modeling with an expert before major decisions.
Stream 4 and Structures to Avoid: Real Estate, Savings Accounts, and Three Costly Shortcuts
Group of personal assets remaining in Vietnam: rental real estate (rental income bears Vietnam tax, enters the US return with corresponding credit; asset sales have separate capital gains rules on each side — large sales always consult the CPA first on timing), interest on deposits and financial investments (small amounts but reportable, and this entire group falls within the FBAR/FATCA category from the previous article).
Three shortcuts to avoid from the start because they become expensive later: hiding Vietnam income streams from the US return (international underreporting penalties are severe and financial information exchange systems are increasingly robust), inflating intercompany transaction prices to shift profits to the lower-tax side (transfer pricing risk on both ends), and running business cash flows into personal accounts for convenience (simultaneously breaking accounting records, taxes, and the source-of-funds story in documentation). The dual-tax picture is complex but manageable — with one condition repeated throughout this section: the Vietnam chief accountant and US CPA know each other, reconcile quarterly, and every major financial decision goes through both before signing.
Note: this article is informational reference material, not legal, tax, or immigration advice. Visa-L1.com is a business consulting and operations firm, not a law firm; all L-1A and EB-1C legal documentation is drafted and filed directly by licensed US immigration attorneys. Government fees, tax rules, and foreign exchange regulations may change and should be verified with an expert at the time of implementation.
Frequently Asked Questions
Do Vietnam and the US have a tax treaty to prevent double taxation?
The two countries have signed a treaty, but the document has not completed the ratification process to become effective — it is not currently in force. Avoidance therefore operates through domestic law on each side, primarily the US foreign tax credit: deducting taxes paid in Vietnam against US obligations on the same income stream, provided that Vietnam tax payment documentation is complete and meets standards.
Does receiving dividends from a Vietnam company result in double taxation?
Standard mechanism: Vietnam withholds dividend tax under its rules, the US includes it in worldwide income and allows a deduction for the amount paid through the foreign tax credit — the net result typically approaches the level of the higher-tax system rather than adding both together. The critical condition is documentation: withholding certificates with correct name, period, and amount; without them, true double taxation occurs due to incomplete paperwork, not the law itself.
Do US branch profits have to pay tax in Vietnam?
The branch pays corporate income tax in the US on its profits; on the Vietnam side, the parent company's obligation on this typically arises when profits are distributed (under the framework of foreign investment rules and current tax law) — profits retained for reinvestment represent a strategic variable in the dual-tax equation. The retain-versus-distribute plan should be modeled with an expert before major decisions.
When two companies buy and sell from each other, how should pricing be set for tax safety?
According to the arm's-length principle with documentation (comparable to transactions between unrelated parties), with the obligation to report related-party transactions on both sides — Form 5472 on the US side and Vietnam's related-party transaction rules. Inflating prices to shift profits to the lower-tax side is a shortcut both tax authorities have tools to catch; proper transfer pricing documentation prepared by coordinating CPAs on both sides is the right insurance layer.
