Foreign Asset Capital Gains, The Five Year Cliff, and Residency
I am trying to figure out how to handle the following situation. I realize that I need professional advice outside of this subreddit, but as this is all new to me I need some guidance on what options I might have and who to reach out to.
The facts are as follows:
- I am a US citizen
- I am currently residing in Japan
- I have spent a little over 4.5 years out of the past 10 in Japan on a combination of Highly Skilled Professional and Student Visas
- I have a highly concentrated stock position from over 10 years ago with very low basis
- I need to diversify out of this position to sleep at night
- I would like to live in Japan in the future
My understanding from browsing this subreddit is that capital gains from stocks held in a foreign brokerage purchased before residing in Japan and sold while a Non-Permanent (Tax) Resident are only subjected to Japanese taxes based on the amount remitted into Japan.
When I exceed a cumulative Japanese residency of 5 years out of the past 10 years later in 2026 I will become a "resident other than a non-permanent resident". This subjects me to Japanese taxes on worldwide income sources.
While the upper capital gains rates for Japan and the US are quite similar, because Japan calculates the gain based on the relative Japanese Yen valuation there is an additional roughly 1.5x factor on the tax rate due to the weakening of the yen.
I'm not wild about the additional scrutiny from the NTA after achieving Japanese tax residency, but if the tax rates are roughly equal for things like capital gains and dividends then redirecting taxes from the US to Japan while I'm living there makes sense to me.
Paying hundreds of thousands of additional taxes because the yen is currently weak makes staying in Japan less financially sound.
Having just spoken with a tax consulting firm, their advice was to leave before I surpassed five years as a Japanese resident and stay out of Japan for at least two years.
Given that I have been working towards a potential life in Japan this is not ideal. I want to find out if there is a path forward for the near-term where I could be treated as a US resident for tax purposes but also spend time in Japan.
Q1 Is it possible to leave Japan before becoming subject to taxation on worldwide income, take care of things back home, and then return shortly afterwards?
Q2 If residency in Japan needs to be avoided after a capital gains realization close to the five year threshold, what options are available?
From my understanding so far, the key is where my jusho (住所) or domicile is considered to be by the NTA. If my residency is in the US then I am not a Japanese tax resident and the situation is simplified. I have found some information through posts and the JapanFinance wiki on how the location of residency is determined but not in enough detail that I feel certain that I would have the same understanding as the Japanese authorities. Here I definitely need professional expertise.
If I need keep my residency out of Japan following the sale to simplify tax issues, my hope is that something like the Designated Activities Visa might allow me to spend time in Japan while staying a US resident. I would be giving up the right to work in Japan, access to Japan's healthcare, and be unable to keep a Japanese bank account. In exchange I keep some ties with Japan and potentially set up a situation where I become a resident in the future.
Q3 Are there flaws in my thinking? Are there other things I should be considering? Do you have recommendations on professionals to reach out?
Any help would be appreciated!
TL;DR:
Financially disincentivized to being a Japanese resident near-term.
Need to figure out length of departure from Japan as a Non-permanent Resident to comply with tax treatment of foreign sourced capital gains.
Looking to keep ties to Japan going forward.
Need advice on who to talk to and questions to ask to avoid making mistakes in timing and visitation.
References:
Treatment of capital gains as a non-permanent resident:
https://www.reddit.com/r/JapanFinance/comments/1oojuca/tax_treatment_of_us_stocks_for_nonpermanent/
Capital gains is based on yen valuation:
https://www.reddit.com/r/JapanFinance/comments/1m7y785/taxes_on_capital_gains_on_listed_securities/
Factors taken into account for determining residency:
https://www.reddit.com/r/JapanFinance/comments/p8dce2/jusho_for_a_permanent_resident_temporarily/
Clarification on how current tax residency affects scope of taxation:
https://www.reddit.com/r/JapanFinance/comments/1px6ha9/japan_tax_residency_clarification/
Hypothetical on visiting Japan on a Designated Activities Visa without establishing Japan residency:
https://www.reddit.com/r/JapanFinance/comments/1po4d6q/hypothetical_tax_implications_of_coming_to_japan/