How to avoid FPIC while investing in ETF/MFs?

Hello, for context, I am a Japanese citizen currently studying in the United States. I have been living in the U.S. for about 8 years and meet the substantial presence test. I also have a U.S. taxpayer ID, so I file U.S. taxes as a resident.

My question is about investments I hold in Japan:

  • I have a NISA account with Rakuten Securities.
  • Inside this account, I hold both individual U.S. stocks and also Japanese mutual funds (e.g., eMAXIS Slim S&P500, 楽天・全世界株式インデックス・ファンド).
  • I also hold an All-Country World ex-USA fund (楽天・VXUS) that is managed through a Japanese mutual fund structure.
  • I understand that while individual stocks are treated normally, the mutual funds may be considered PFICs under U.S. tax law.
  • Since NISA is recognized as tax-free in Japan but not in the U.S., I am concerned that PFIC reporting (Form 8621) and additional taxation may apply.

I would like advice on:

  1. Whether I should sell the Japanese mutual funds now to avoid future PFIC complications.
  2. The best way to structure future investments to remain compliant. For example, using a U.S. brokerage like Fidelity instead.

I want to ensure I stay compliant with both U.S. and Japanese tax obligations. Thanks.

by Walmartpancake