Unable to have Monex iDeCo if non-Japanese?

[Roger Van Zant]

The first option relates to the account type, in terms of how taxes will be handled.
From what you have said, it sounds like you want to pick the top option - this is a taxable account where any profits you happen to lock in with a sale will be taxed there at the source, and you won't need to do any tax return business. Looks like dividends you earn would be received in that account too, so similarly no need to worry about paying taxes on your dividends separately.

The second question is asking if you are an "insider" in relation to listed companies. Assuming you aren't (?) then it would be the second option to declare you aren't, if that is your situation.

Many thanks!