@christianzealot4 for Japanese citizens and others with tax residency, you will owe Japanese taxes on your global income including from the sale of stocks.
Your income from selling stocks from a Japanese perspective will be based on the purchase cost of the underlying assets. So if, for instance, you bought AAPL in December 1995, you paid 0.25cents/share (https://www.statmuse.com/money/ask/apple-stock-price-1995). If you moved to Japan in 2024 and then sold it the day after, each share would be worth $183.
If you don't rebase, you would be responsible for taxes from
($183 * 155 Yen/$) - ($0.25* 100 Yen/$) = 28340 yen / share.
(1995 exchange rate was about 100 yen / dollar https://www.poundsterlinglive.com/b...rical-spot-exchange-rates/usd/USD-to-JPY-1995 )
and you'd still be on the hook in the US as a permanent resident for US capital gains taxes (credit to give you the lower of the two effective rates).
conversely if you rebased your portfolio by selling it and rebuying things (hard to buy the exact same thing due to a "wash-sale" rules on exchanges), then the cost basis Japan would see would be ($183 * 155 Yen / $) instead -- making you much less taxed in Japan.
Your income from selling stocks from a Japanese perspective will be based on the purchase cost of the underlying assets. So if, for instance, you bought AAPL in December 1995, you paid 0.25cents/share (https://www.statmuse.com/money/ask/apple-stock-price-1995). If you moved to Japan in 2024 and then sold it the day after, each share would be worth $183.
If you don't rebase, you would be responsible for taxes from
($183 * 155 Yen/$) - ($0.25* 100 Yen/$) = 28340 yen / share.
(1995 exchange rate was about 100 yen / dollar https://www.poundsterlinglive.com/b...rical-spot-exchange-rates/usd/USD-to-JPY-1995 )
and you'd still be on the hook in the US as a permanent resident for US capital gains taxes (credit to give you the lower of the two effective rates).
conversely if you rebased your portfolio by selling it and rebuying things (hard to buy the exact same thing due to a "wash-sale" rules on exchanges), then the cost basis Japan would see would be ($183 * 155 Yen / $) instead -- making you much less taxed in Japan.