Comment: Trump has filed required financial information already and has therefore complied with the laws, as required.  Releasing tax forms by presidential candidates is optional, up to them.  Don't forget that the slimy Bill Clinton refused to release his.
Having said that, it seems reasonable for Trump to release a summary of his income info over the last few years.  That's all the public needs to know, anyway...except those who want to dig enough dirt to question every one of his many donations to charity.  One's finances are personal, to the extent that they are legal.
Why isn't the same interest being given to Hillary's income?  Or to her past "experience"?  Or to her personal use of the Clinton Foundation funds?  Or to her ethical shortfalls?  Or to her "Wall Street" speech?