Hi hongononeko,
Thank you for your experience.
I am afraid it is very important be aware of all the details being relevant in the background as they will determine "go/no go".
I pretty much doubt that Revolut JPY to IBKR (=IBLLC) in JPY will work: For JPY transfers Revolut uses the Japanese Zengin system with 7 digit account numbers and NOT SWIFT. If you aim to move JPY to IBLLC's Citibank account, you will need to find a way to use SWIFT (with 10 digit account numbers).
(Revolut may work JPY to IBJP Securities (their Japanese entity which doesn't allow investing on global markets and is thus ignored here) in JPY but I understand this is not what you are looking for.
Please check my earlier post where I had described 4 ways of funding IBKR that work (earlier in this thread), among those being Revolut (but in a different setting):
Telebroker wrote: ↑Thu Jun 03, 2021 10:11 am
3.
Revolut swift JPY->
USD transfer directly to IBKR's account in the US in USD
+ free up to JPY 750,000 per month (watch out in case you need to convert JPY into USD first as that counts to your free allowance as well, thus basically halfing the free allowance amount for this transaction to effectively 375,000;
- Revolut premium functionality removing such limit would otherwise be JPY 999/month;
+ can all be done within the Revolut App (from the sofa);
+ no conversion JPY-USD required on the IBKR side.
- It takes 5-7 days until the funds are cleared on IBKR side, ready for investment.
Bring patience and time (multiple days) to the table and don't give up, you are close to succeeding when you have read this!
As some time has passed, I know that similarly to Option 2 (SMBC->IBKR in JPY-JPY) stated in the earlier post, this will also work with MUFG over the Telebemadoguchi provided IBKR's Citibank N.A., Tokyo branch account were pre-registered.
Ultimately you may want to chose one of the options thoroughly tried and stated on Kabu-Yutai:
https://kabu-yutai.com/2019/07/29/post-8845/ (Use Google Chrome auto translation if too much kanji)
- with SMBC via Onlinebanking being the most convenient!
Good luck - you are close!
Passive ETF investor and Berkshire shareholder on the way to FI; banking tester in JP and Doitsu.