Nisa/Ideco for a non working resident

Hi guys. I am currently a resident in Japan and i couldn’t find an answer to the following questions. I am currently unemployed in Japan and living on my savings and some income that i don’t remit to Japan.

  1. Will i be able to open Nisa/Ideco if i am unemployed?

  2. Can you only fund your broker account through deducting salary? Can’t i just deposit it from my savings? If yes – what is the maximum amount that is possible to deposit? And what is the maximum amount you can have until it stops being tax free.

  3. If i decide to sell everything and leave(not planning to, but you never know what life plans for you), how much on average remittance costs to other countries? (Non-US)

Thank you in advance

by zzarGrazz