YAS! I feel so relieved! 
Why? Because I thought that the deadline to submit and file taxes is March 15th.
Giselle (one of my friends) reminded me today about it, and so I hurriedly checked Shibuya's tax offiice website to see when the deadline is.
Fortunately, they extended it to April 15, 2021 because of the current (pandemic) situation.
The same case happend last year too (2020) -the Ward gave a month extension.
Adulting is fun! I get to feel a sense of responsibility and achievement especially when I am able to accomplish a task or errand.
So anyway, to my Shibuya co-residents, our tax filing deadline has been extended from the usual March 15th to April 15th;
and this will be in place until further notice. 
LJ