I’m kind of scrambling to get 5 years worth of taxes done and have a few questions I can’t find clear answers to. I’m currently a non-permanent resident and living in Japan since August 2019 and have never filed a tax return because I was unaware that remits become taxable and credit card usage counts as a remit. I’ve only worked for a Japanese company during that time, but I held mutual funds and received dividends and had some capital gains during that time. I’ve also made some sales of the mutual funds when my U.S. bank account needed refilling. Because I frequently used my credit card to make purchases, I became aware that I’m liable for the taxes. I’m very much a beginner when it comes to finances. I’m trying to do as much research myself, but it’s kind of a lot to take in all of a sudden. Thank you for any advice.
1. Are dividends that are automatically reinvested taxable?
2. Are Roth IRA’s and 401k dividends that are reinvested subject to taxes? I haven’t withdrawn or contributed anything since I moved here.
3. Do I need to itemize every dividend and capital gain at the time the transaction occurred or can I just use an aggregate for the entire year?
4. Is the TTM rate to apply the rate on the date the sale of the mutual fund was processed or the date the money was remitted?
5. Do I calculate the taxes I owe myself or do I submit the forms and let the NTA tell me what I owe?
6. Do I calculate the delinquent and penalty tax myself and just add it to the taxes owed?
7. I haven’t been audited, I’m just dumb. I’ll go admit the mistake and submit the tax forms to the NTA of my own volition. In this case, would the additional tax for failure to file be 15%?
8. Is payment required at the time I file or will I receive a bill later?
9. Do I need to submit anything other than the 確定申告 and 居住形態等に関する確認書 forms? I’m aware of the other things like bank book, My Number, etc.
10. The NTA website says “In the case where the principal amount of tax exceeds 500,000 yen, 20% additional tax is applied to the excess amount.” Say last year I remitted 1,000,000 yen, so at the 20.315% rate, the tax principle is 203,150 yen, correct? Basically the “principle amount” refers to the tax owed, not the remit value, correct?
11. I had a son last year and my wife works part time. In this case, my wife is NOT a dependent but my son is mine because I have the higher salary, correct?
12. How much does this hurt my chance of switching to a spouse visa this year and/or renewing a work visa?
Again, thank you for any help!
Edit: Some corrections to numbering and finished writing #7
by OvertechB