Hello, you linked an article about the $10,000 threshold for IRS reporting requirements, which is unrelated to (and larger than) the 1M JPY cap Wise has historically imposed on transfers to Japan. Wise's article about this topic is here: https://wise.com/help/articles/2932156/guide-to-jpy-transfer... and currently claims that I can send larger amounts via SWIFT, so this may have just been some sort of UI issue where after saving a recipient that had all the information needed for a domestic wire but not a SWIFT code they refused to show the option for SWIFT transfers in the UI. They won't even show their UI for this stuff while you don't have a sufficiently large balance with them, so it would take me several days to check the accuracy of their article and to suss out whether my current saved recipient (myself) is only unable to receive large JPY transfers because it has no saved SWIFT code.

I don't think sending larger transfers would save much on fees though. The fees paid to Wise are dominated by the percentage fees for forex conversion.