How U.S. Stock Dividends Are Taxed
When a Japanese resident receives dividends from a U.S. company, tax is first withheld in the United States.
Then the dividend is taxed in Japan through the Japanese brokerage account.
U.S. company pays dividend
↓
U.S. withholding tax
↓
Dividend arrives in Japanese account
↓
Japan-side taxation
Without any adjustment, this can feel close to double taxation.
U.S. Withholding Tax
Under the Japan-U.S. tax treaty, U.S. dividends paid to Japanese residents are generally subject to 10% U.S. withholding tax.
Example:
| Item | Amount |
|---|---|
| Dividend | $100 |
| U.S. withholding tax (10%) | -$10 |
| After U.S. tax | $90 |
Actual amounts depend on the broker, exchange rate, account type, and tax handling.
Japanese Tax
After U.S. withholding, the dividend is also taxed in Japan.
For listed-stock dividends under separate taxation, the standard Japanese tax rate is 20.315%, including income tax, reconstruction special income tax, and resident tax.
Simplified example:
| Item | Amount |
|---|---|
| Dividend | $100 |
| U.S. withholding tax | -$10 |
| Japan-side tax | about -$18 |
| Net amount | about $72 |
This table is a simplified example for understanding the mechanism.
Foreign Tax Credit
Because tax has already been paid overseas, Japan's foreign tax credit may reduce part of the double taxation.
It may apply to dividends and distributions from:
- U.S. stocks
- U.S. ETFs
- overseas REITs
- some overseas equity funds
However, the foreign tax credit does not always refund the full U.S. 10%.
The credit limit depends on income, the share of foreign-source income, Japanese tax amount, and other deductions. A tax return is generally required.
What Happens in NISA?
In a NISA account, Japan-side tax on dividends is tax-exempt.
But U.S. withholding tax generally remains.
| Item | Amount |
|---|---|
| Dividend | $100 |
| U.S. withholding tax | -$10 |
| Japan-side tax | $0 |
| Net amount | $90 |
NISA does not make U.S. withholding tax disappear.
Because Japan-side tax is already exempt, the room to use the foreign tax credit is usually limited in a NISA account.
Common Misunderstandings
"NISA means zero tax"
NISA removes Japan-side tax, but U.S. withholding tax on U.S. dividends generally remains.
"A withholding-tax account means no tax return is ever needed"
For many investors, a Japanese specified account with withholding is convenient. But if you want to use the foreign tax credit, filing a tax return may be necessary.
"Dividend yield equals take-home yield"
Dividend yields are usually shown before tax. For U.S. stocks, after-tax yield is lower after U.S. and Japanese taxes.
Conclusion
U.S. stock dividends received by Japanese investors are generally subject to U.S. withholding and Japanese taxation. Foreign tax credits can reduce part of the double taxation, but the effect depends on the investor's tax situation. In NISA, Japan-side tax is exempt, but U.S. withholding remains. Dividend investors should compare after-tax income, not only headline yield.