- FinTokei — full Japanese-language support, including dashboard and rule documents
- FTMO — partial Japanese support, with translated FAQ and some dashboard sections
- For English-only firms, DeepL handles most rule text well
- JPY-to-USD conversion is handled automatically by Wise on withdrawal
Most overseas prop firms operate primarily in English, which is the main practical hurdle for Japanese-resident traders. The two genuine exceptions are FinTokei, which built its product around Japanese support from launch, and FTMO, which has translated a meaningful portion of its dashboard. That said, the English-only firms are perfectly usable with DeepL or modern browser translation — the rule documents are the only part that demands careful reading, and they are short.
What “Japanese support” actually covers
Three things matter, and firms vary on each:
- Dashboard and rule documents. FinTokei provides full Japanese. FTMO covers the key sections.
- Customer support tickets. FinTokei responds in Japanese. FTMO responds in English; the responses are high quality and the wait times are about the same.
- Payout interface. These are numbers and standard English everywhere, so language barely matters here.
Working with English-only firms
DeepL handles prop firm rule documents accurately enough for daily use. The only places to double-check by hand are the dollar amounts (decimal-point versus comma conventions) and any time-zone references. In practice, this takes minutes per month and is not a meaningful obstacle to using The5%ers, FTMO, or the major US futures firms.
Currency handling
JPY-to-USD conversion happens automatically through Wise on withdrawal. For Japanese tax filing, the figure to record is the prevailing TTM rate at the time of receipt. Consult a licensed tax professional for the documentation standards.
Recommended Firms
The5%ers — Skip the challenge
→ The5%ers official (coupon “HZZS4”)