Yes. Registered capital (資本金) for a Japan KK or GK is fixed and tracked in Japanese yen, not in the founder's home currency. A non-resident founder who scopes a company around a foreign-currency balance sitting near the JPY 30,000,000 Business Manager visa (経営・管理) threshold can fall short of that threshold purely from yen appreciation between scoping and the actual capital payment (払込), with no change in the underlying funds.
Is Registered Capital in Japan Recorded in Yen or Foreign Currency?
Registered capital is recorded, registered, and reviewed in yen. There is no mechanism to register a KK or GK's capital amount in dollars, euros, or any other currency; the figure printed on the company's registration certificate (登記事項証明書) is a yen number, full stop.
This matters at the planning stage because most non-resident founders think in their home currency first. A founder holding USD 200,000 does not have "JPY 30,000,000 of capital" until that balance is actually converted and paid in at whatever rate prevails on the payment date. Until then, the foreign-currency figure is only a dated estimate against a moving target, and the yen figure is the actual requirement.
What Is the JPY 30,000,000 Threshold and Where Does It Come From?
JPY 30,000,000 is the capital amount commonly used as the eligibility marker for the Business Manager visa (経営・管理), the status of residence that lets a founder run the company they own from inside Japan. It is not a number a founder can round down to "roughly enough": it is tested against the yen figure actually paid in, not the foreign-currency figure quoted at scoping.
This is where the exchange-rate exposure lives. A founder who scoped the structure when USD/JPY made their savings comfortably exceed the threshold can find the same savings insufficient months later purely because the yen strengthened, with the underlying dollar or euro balance unchanged. Because the visa eligibility figure is fixed in yen while a foreign-currency holding is not, the gap only shows up on the day funds actually move, which is often the worst possible time to discover it. For the broader question of whether this visa is even required for the founder's situation, see Do You Need a Management Visa to Own a Japan Company You Run From Abroad?, since not every non-resident owner needs 経営・管理 status at all.
How Should a Founder Manage the FX Gap Between Scoping and Pay-In?
Treat the yen figure as the only figure that matters, and test it twice: once at scoping and again immediately before the actual pay-in date. A founder sitting a few percentage points above JPY 30,000,000 in yen-equivalent terms at scoping should not treat that margin as fixed, because currency movement between scoping and 払込 can erase it without any change to the underlying foreign-currency balance.
Where the margin is thin, the practical fix is either to hold a larger buffer above the yen threshold before locking in a company structure around it, or to lock in the yen conversion earlier rather than waiting until the pay-in date to convert. Where a founder's home country separately restricts how much capital can leave the country in a given period, the exchange-rate problem compounds with a remittance-ceiling problem; that combined case is covered in Japan KK Capital From a Transfer-Restricted Country: Can It Still Be Funded?. In that scenario, a home-country annual remittance ceiling that sits below the yen threshold converts a capital problem into a timeline problem: the founder cannot legally move enough capital in one calendar year regardless of what the exchange rate does. The staged-residency alternative in that case is the 特定活動告示44号 Startup Visa bridge, which sequences residency first so remittance can proceed across two annual windows and the period counts toward the eventual management-experience requirement. That bridge defers the JPY 30,000,000 gate; it does not lower it, and the yen figure a founder eventually has to clear is unchanged.
Key points:
(a) Capital amount is a yen figure from registration onward; a foreign-currency balance quoted at scoping is only an estimate at that day's rate, never the requirement itself.
(b) The Business Manager visa (経営・管理) threshold of JPY 30,000,000 must be tested against the current exchange rate both at scoping and again immediately before the actual payment (払込), because yen appreciation between those two dates can move a previously sufficient foreign-currency balance below the line with no change in the underlying funds.
(c) Where a home-country outbound remittance limit sits below the threshold in yen terms, that is a separate, additional constraint from exchange-rate risk; the correct response is a staged-residency filing sequence, not a bigger currency cushion.
Who Handles the Capital Payment Itself?
The founder does not need a personal Japan bank account to pay in capital before arrival. Capital payment (払込) must run through a payment-handling institution recognized under the Companies Act (会社法): a bank licensed under the Banking Act (銀行法), a trust company under the Trust Business Act (信託業法), or another institution specified by Ministry of Justice ordinance. For a pre-arrival founder, the workable route is typically a Japan-resident collaborator's personal account, which is what an interim resident-director arrangement is built to supply. The mechanics of who can actually receive the funds, and why electronic money transfer accounts do not currently qualify, are covered in How Do You Pay In Capital for a Japan Company With No Japan Bank Account?.
Setting the capital amount itself, separate from where it lands, is a strategic decision that touches bank-account approval odds, notary fees, and tax bracket effects beyond the visa threshold. That broader sizing question, including cases where JPY 30,000,000 is not the relevant number at all, is addressed in Japan Paid-In Capital (資本金) Guide. Aplash's incorporation and capital-structuring scope for non-resident founders is described on the company setup service page.
Frequently Asked Questions
Can I register my Japan company's capital in US dollars or another foreign currency instead of yen?
No. Registered capital for a KK or GK is fixed and recorded in Japanese yen on the company's registration certificate; there is no foreign-currency registration option. Any foreign-currency amount you have in mind is only an estimate against the yen figure at a given exchange rate, and that estimate can move before the actual payment date.
If I already have enough in my home currency to clear JPY 30,000,000, am I safe?
Not automatically. Enough today at today's exchange rate does not guarantee enough on the actual capital payment (払込) date, because the yen figure is what gets tested against the Business Manager visa (経営・管理) threshold, not the foreign-currency balance you started with. Re-check the conversion close to the actual pay-in date rather than relying on the number from initial scoping.
What if my home country will not let me remit enough money to reach JPY 30,000,000 in one year?
That is a separate constraint from exchange-rate risk and it is a timeline problem rather than a currency problem: an annual outbound remittance ceiling below the threshold means the capital cannot be assembled in a single year regardless of the exchange rate. The 特定活動告示44号 Startup Visa bridge is the staged-residency route built for this case; it sequences residency ahead of full capitalization and defers the JPY 30,000,000 gate rather than reducing it.
Conclusion
Registered capital in Japan is a yen number from the moment it is registered, and treating a foreign-currency balance as interchangeable with that number is the single most common way a non-resident founder's Business Manager visa plan slips. Test the yen figure against the current exchange rate at scoping and again before the actual pay-in, and if a home-country remittance ceiling is the binding constraint rather than the exchange rate, plan around the staged-residency bridge rather than trying to outrun currency movement with a bigger buffer.
This article is informational only and does not constitute legal, tax, or regulatory advice. Consult a qualified advisor before acting on the content. Last updated: August 2026.