One of the most common — and most anxious — questions when an exchange winds down is: "If the exchange force-closes my position, do I still owe tax on it? I didn't choose to sell." Under current Japanese rules, the answer is generally yes. A close is a realization event regardless of who pressed the button. This page explains, factually, how a forced liquidation is taxed in Japan, how losses are treated, and how the enacted-but-not-yet-effective reform does and does not change the picture. It is general information about the rules, not tax advice — see the note at the end.
In Japan, profit from crypto-assets (暗号資産, commonly 仮想通貨) is generally classified as miscellaneous income (雑所得) and taxed under comprehensive taxation (総合課税) — meaning it is added to your other income (such as salary) and taxed at progressive rates. The National Tax Agency (NTA) states that profit arising from selling or using crypto-assets is, in principle, classified as miscellaneous income requiring an income-tax return.
A gain is realized at the point of disposal — a sale, a use (spending), or an exchange into another crypto-asset — and, for a leveraged position, at the point the position is settled (closed). Crucially, the rule does not distinguish between a close you initiate and a close the exchange executes for you. A forced liquidation is still a disposal. The moment an open derivative position is closed at market on the deadline, the profit or loss on that position becomes a realized figure for the tax year in which it closes.
So for a position force-closed on July 22, 2026, the realized gain or loss lands in the 2026 tax year (令和8年分), and is reported in the tax return filed in spring 2027 (the filing window runs roughly February 16 to March 15, 2027).
Because crypto gains are taxed comprehensively, there is no single flat rate. The gain is stacked on top of your other income, and the combined marginal rate can reach roughly 55% at the top — up to 45% national income tax on the highest bracket plus 10% local (resident) tax, with a 2.1% reconstruction surtax applied to the national portion. For most people the marginal rate is lower; the point is that a large realized crypto gain can be taxed at a high rate precisely because it is aggregated with everything else.
A note that trips people up: crypto margin and derivative gains are taxed the same way — as miscellaneous income under comprehensive taxation. They are not eligible for the flat ~20.315% separate taxation that applies to retail FX. Leverage does not change the category for crypto.
Losses have limited usefulness under the current regime, which matters when a forced close crystallizes a loss:
In other words, if a forced liquidation closes a losing position, that loss can only help you against other crypto/miscellaneous gains you realized in 2026 — it does not travel into 2027 and does not reduce your salary tax.
These numbers are illustrative only — a made-up scenario to show the mechanics, not a real case or a calculation of anyone's liability.
Scenario A — a net gain year.
Scenario B — a net loss year.
The takeaway: a forced close is a taxable event that lands in the year it happens, and a loss from it has narrow usefulness under today's rules.
Japan's FY2026 tax-reform outline (令和8年度税制改正大綱, published December 2025) set out the move of certain "specified" crypto-assets to separate self-assessment taxation (申告分離課税) at 20% (15% income tax + 5% individual inhabitant tax), with a three-year loss carryforward. That design has since been enacted. Including the special reconstruction income tax, the 20% becomes 20.315%. Two limits matter for anyone reading this because of the Bybit wind-down:
Because a Bybit forced close on July 22, 2026 is a 2026 transaction, it falls under the current miscellaneous-income / comprehensive-taxation rules described above. The reform itself is enacted: the Act Partially Amending the Income Tax Act and Others (Act No. 12 of 2026) was promulgated on 31 March 2026. What remains open is the cabinet order that fixes the effective date.
Related: Japan's 20% Crypto Tax: Already Enacted, Start Date Not Yet Set (August 2026)
This page explains the general rules; it is not tax advice. Individual circumstances change the result, and the rules can be updated. For your own situation — especially anything involving a large realized gain or loss — consult a qualified tax professional (税理士) or the National Tax Agency.
This content is provided for general informational purposes only and doesn't constitute financial, investment, legal, or tax advice. Any events, rewards, online promotions, or related information mentioned herein should not be considered a recommendation, solicitation, or invitation to purchase, sell, trade, or otherwise deal in any crypto assets. Crypto assets are highly volatile and may result in loss. The availability of WEEX services, products, and related events may vary by region. You are responsible for ensuring that your participation is in accordance with applicable local laws and regulations.

BitMEX shuts down on September 23, 2026. Here is the full timeline, including the August 26 force-close, and how to withdraw your funds before the deadline to avoid the monthly fee on anything left behind.





















BitMEX shuts down on September 23, 2026. Here is the full timeline, including the August 26 force-close, and how to withdraw your funds before the deadline to avoid the monthly fee on anything left behind.