🇯🇵 Japan — 🇺🇸 United States

Tax Treaty / Double Tax Avoidance Agreement detail

The current Japan–United States income tax treaty was signed on 6 November 2003, replacing the original 1971 treaty, and entered into force on 30 March 2004. A protocol signed in January 2013 became effective in 2019, modernising the arbitration provisions and refining certain withholding tax rates, making the treaty one of the most favourable bilateral tax arrangements in the US treaty network. Dividend withholding tax is structured in three tiers: 0% for qualified pension funds, 5% for direct corporate shareholders holding 50% or more of voting stock, and 10% for all other (portfolio) dividends. Interest withholding is 0% for most categories — including interest paid to governments, central banks, financial institutions, and in connection with sales of property or services — with a residual 10% rate applying in other cases. Royalties are fully exempt at source (0%), a notably generous outcome compared with many US treaties. The treaty contains a robust Limitation on Benefits (LOB) clause aligned with the US LOB template, restricting treaty benefits to qualifying residents and preventing third-country treaty shopping. The saving clause preserves the right of each country to tax its own residents and, critically for the United States, its citizens and long-term permanent residents on their worldwide income regardless of treaty provisions — reinforcing the US citizenship-based taxation regime. The dual worldwide taxation systems create a particular planning consideration: Japan taxes all residents on worldwide income, while the United States taxes all citizens and green card holders worldwide. Individuals subject to both regimes — estimated to include approximately 64,000 American citizens resident in Japan and a comparable Japanese expatriate community in the United States — must navigate foreign tax credit claims on both sides to mitigate double taxation. A separate Japan–US Totalization Agreement entered into force in 2005, coordinating social security contributions and preventing dual social security taxation for workers moving between the two countries. Japan is one of the few jurisdictions that elected a FATCA Model 2 Intergovernmental Agreement (IGA) rather than the more common Model 1, meaning Japanese financial institutions report directly to the IRS rather than through the Japanese tax authority. The 2013 protocol introduced a mandatory binding arbitration mechanism for unresolved competent authority cases, and transfer pricing provisions are aligned with OECD arm's-length principles.