Despite the turmoil at the I.R.S., tax returns are still due on April 15. And, yes, there are still options for lowering last year’s taxable income. Income Tax, Tax Credits, Deductions and Exemptions, Rebates and Refunds, Content Type: Service, Personal Finances, Internal Revenue Service, Trump, Donald J Despite the turmoil at the I.R.S., tax returns are still due on April 15. And, yes, there are still options for lowering last year’s taxable income. NYT > Business