bitcastleFX's bonuses are built for Japan: the ¥15,000 sign-up bonus requires Japanese nationality, and the broker doesn't say it accepts clients outside Japan at all. On its Japanese site, the main offers are that sign-up bonus and a deposit bonus of 160%, 110%, 60% or 20% depending on cumulative deposits (up to ¥10 million; up to 200% with a 40% top-up campaign). Both are for Standard accounts and need identity checks. Requesting any withdrawal deletes all bonus credit in the account.
Eligibility comes first
bitcastleFX’s FX service is published only in Japanese, with yen accounts, and it doesn’t say it accepts residents outside Japan. Its ¥15,000 sign-up bonus explicitly requires Japanese nationality. If you live elsewhere, ask its support in writing whether your country is accepted, and whether you’d qualify for any bonus, before depositing. Japan’s Financial Services Agency warned the operator, bitcastle LLC, in April 2025: is bitcastleFX safe?.
The terms below are from bitcastleFX’s Japanese campaign pages, read on 31 October 2026.
Current offers
| Offer | What you get | Account |
|---|---|---|
| Sign-up bonus | ¥15,000, no deposit needed (Japanese nationals) | Standard |
| Deposit bonus | Up to 160%, tiered by cumulative deposits | Standard |
| 40% top-up (autumn–winter) | 26 Oct 2026 – 4 Jan 2027; with the deposit bonus, up to 200% | Standard |
| 72-hour deposit bonus | Up to ¥30,000 for depositing within 72 hours of registering | Standard |
| LINE friend registration | ¥1,000 credit | Standard |
The campaign list also shows prize draws and a loss-compensation campaign for the AI trading service.
How the deposit bonus is calculated
The rate depends on your cumulative deposits at the time you qualify, according to bitcastleFX’s deposit bonus article:
| Cumulative deposits | Bonus rate |
|---|---|
| ¥5,000 – ¥50,000 | 160% |
| ¥50,001 – ¥300,000 | 110% |
| ¥300,001 – ¥1,000,000 | 60% |
| ¥1,000,001 – ¥10,000,000 | 20% |
bitcastleFX’s own example: deposit ¥5,000 and receive ¥8,000 of credit (160%). But two deposits of ¥2,000 and ¥3,000 get nothing, because each deposit must be at least ¥5,000 to count. Other conditions:
- Identity verification completed (a rule since 9 September 2025)
- Enter the campaign before depositing
- Yen deposits only
- Credit arrives in 3–4 business days; a transfer or withdrawal request before then cancels it
- Clients registered through an introducing broker fall under separate campaigns
The withdrawal rule
According to bitcastleFX’s credit adjustment article, a withdrawal request deletes all bonus credit in the account, whatever the amount. Its example: an account with a ¥100,000 balance and ¥4,000 of credit requests a ¥3,500 withdrawal, and the full ¥4,000 credit is removed. Only a rejected withdrawal restores it.
Losing credit lowers your margin level instantly, so with open positions a withdrawal can trigger stop-out. Close or reduce positions before requesting one.
Bonus credit also disappears if you transfer between FX accounts (from the source account), at stop-out, 30 days after your last login, or if trading is judged abusive.
How it compares
A 160% first-tier rate is high, but the all-or-nothing withdrawal rule means the bonus suits traders who plan to leave money in the account. The sign-up bonus has its own trading conditions: bitcastleFX no-deposit bonus. How bonus credit behaves in general: bonus rules explained. Brokers with deposit bonuses open to international clients: deposit bonus comparison.
| Broker | No-deposit bonus | Deposit bonus | Visit broker | |
|---|---|---|---|---|
 XMFeatured | 4.9/5Editorial rating | None listed publicly | 100% deposit bonus | Visit |
 bitcastleFX | 3.4/5 | ¥15,000 no-deposit bonus | 160% down to 20% by cumulative deposits | Visit |
 BigBoss | 3.2/5 | None | Three-tier deposit bonus up to $13,840 | Visit |
Back to the bitcastleFX review.
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Frequently asked questions
Can international clients get bitcastleFX bonuses?
The sign-up bonus is limited to Japanese nationals, and bitcastleFX doesn't state that it accepts clients outside Japan. Confirm eligibility in writing before relying on any bonus.
How much is the bitcastleFX deposit bonus?
160% on cumulative deposits of ¥5,000–50,000, 110% up to ¥300,000, 60% up to ¥1 million and 20% up to ¥10 million. A 40% top-up campaign (26 October 2026 to 4 January 2027) can lift the total to 200%.
What happens to the bonus if I withdraw?
Requesting any withdrawal deletes all bonus credit in the account, however small the amount. It's restored only if the withdrawal is rejected.
Can I withdraw the bonus itself?
No. Bonus credit is for trading only. Profit made with it can be withdrawn, subject to each bonus's conditions.
Does the Emperor account get bonuses?
The main deposit bonus and the sign-up bonus are for Standard accounts. Some campaigns on the list are marked as open to all accounts, so check each campaign page.