US Treasury Eyes Updates to Tax Treaties with Switzerland, Romania, and Vietnam

WASHINGTON — The U.S. Treasury Department is actively working to update bilateral income tax treaties with Switzerland, Romania, and Vietnam, a senior official announced this month. The initiative follows the successful signing of an updated protocol with Croatia in April and signals a renewed focus on modernizing agreements that are crucial for U.S. companies operating abroad.

Rebecca Burch, Treasury's deputy assistant secretary for international affairs, confirmed the department's plans during remarks at the New York State Bar Association’s summer tax conference in Arlington, Virginia. “We are also working towards Switzerland, Romania, and Vietnam,” Burch stated, highlighting the next priorities on the administration's agenda for international tax policy.

This move signals a welcome focus on modernizing international tax frameworks, but for businesses operating on the ground, the immediate impact is continued uncertainty. The path from negotiation to a ratified treaty is often long and complex.

Tax treaties are vital for U.S. small and mid-sized businesses with international operations. These agreements prevent double taxation by assigning taxing rights between two countries on various types of income. They often reduce or eliminate withholding taxes on dividends, interest, and royalties paid across borders, directly impacting cash flow and the profitability of foreign investments. Furthermore, modern treaties include robust provisions for the exchange of information between tax authorities to combat tax evasion.

The recent progress with Croatia serves as a template. The Treasury Department worked closely with the Senate to update language in the U.S.-Croatia treaty, which was then signed in April, demonstrating a viable path forward for modernizing other aging agreements.

For each of the three countries now in focus, the history and current status of negotiations vary significantly, underscoring the challenges ahead. The U.S.-Switzerland income tax treaty, originally signed in 1996, is perhaps the most established of the three. It was last amended by a protocol signed in 2009 that came into force in 2019. That update was largely driven by the Obama administration's efforts to crack down on offshore tax evasion and significantly expanded the framework for information exchange, a response to the UBS case involving thousands of undeclared U.S. client accounts.

Under the current Swiss treaty, U.S. businesses and investors benefit from reduced withholding tax rates. The standard 35% Swiss withholding tax on dividends is lowered to 15% for most U.S. investors and to 5% for U.S. corporations that own at least 10% of the Swiss company's voting stock. Withholding taxes on interest and royalties are eliminated entirely, compared to the standard 30% U.S. statutory rate for non-resident aliens. According to a Treasury official in October 2022, new update negotiations are already underway.

The situation with Romania illustrates the potential for lengthy delays. A U.S. Treasury official stated as far back as January 2014 that a new income tax treaty was being prepared for signature. However, as of September 2022, the treaty remained unsigned. The delay was attributed to the need for targeted reservations to account for major changes in U.S. domestic law, specifically the passage of the Tax Cuts and Jobs Act of 2017 (TCJA).

In our experience, treaty negotiations can drag on for years, as seen with the decade-long process for Romania. Changes in domestic tax law, like the 2017 Tax Cuts and Jobs Act, can completely reset discussions. Companies with cross-border operations cannot afford to put their tax strategy on hold. Proactive planning based on existing rules, while building in flexibility for future changes, is critical. This is a core part of the international tax preparation and compliance services we provide at C&S Finance Group LLC, ensuring our clients are not caught off guard by shifts in policy that can take years to finalize.

Less is publicly known about the specifics of negotiations with Vietnam. While Vietnam has an extensive network of 81 double taxation agreements, including one with the United States, modernizing this pact is seen as crucial given Vietnam's growing importance as a manufacturing hub and trade partner for American companies. An updated treaty would provide greater tax certainty and facilitate increased bilateral investment.

For American small and mid-sized businesses, the potential updates carry significant weight. A modernized treaty with Vietnam could lower barriers to entry and reduce the tax burden on profits repatriated to the U.S. For those with ties to Switzerland, further updates could refine information exchange protocols and potentially address new digital economy tax challenges. In Romania, a finalized treaty would replace an outdated agreement and align it with both post-TCJA U.S. tax law and current international standards.

Ultimately, while these announcements are positive indicators for simplifying cross-border business, the real work for companies involves navigating the current, often outdated, rules. For guidance on managing these intricate international tax obligations, business leaders can consult with the team at csfinancegroup.com.

Businesses with interests in these three countries should closely monitor the progress of the Treasury's negotiations. Any proposed treaty protocols must be formally signed and subsequently ratified by the U.S. Senate before they can enter into force. This multi-stage process means that any concrete changes to the tax landscape are likely still several years away.