Layout Po A Federal and state... References Search Mailings Review View Help Paragraph AaBbCcDc AaBbCcDc AaBbCc AaBbCcL AaBbCcD 1 Normal 1 No Spac... Heading 1 Heading 2 Heading 3 Styles 16. The date a tax year closes is an important date from a taxpayers point of view because it stops th IRS from assessing a tax deficiency on a closed tax year. It is an important date from the government's point of view because it stops a taxpayer from making a refund claim on a closed tax year. a. If a taxpayer files her tax return for 2020 on April 1, 2021, on what specific date does her 2020 tax year close under the normal closing rule? b. If a taxpayer inadvertently omits too much gross income from his or her income tax return, the normal closing of a tx year is extended by three years. What percentage of the taxpayer's gross income must be omitted from his or her income tax return in order for the closing year to be extended? As part of your answer, explain exactly how this percentage is applied. 17. For each of the following individuals, determine (1) their total standard deduction and (2) the amount of their gross income threshold and earned income threshold for dependedts they use to determine whether they must file an income tax return for 2020. a. Steve is 36years old. His filing statues is single and he has 20/20 vision. 5