1. Melvin, a single individual, had the following types of income in 2020:

Salary                                                                    $260,000

Interest                                                                      40,000

Dividends                                                                     20,000

Gain on sale of principal residence                             270,000

Net rental income from real estate                                10,000

Net Sch. C income from RE consulting practice         50,000

 Assuming that Melvin’s modified AGI for 2020 is $320,000, that he meets the qualifications for gain exclusion of section 121, that he does not meet the tests as a real estate professional under the section 469 rules, but that he does materially participate in the consulting practice, compute his 2020 tax liability under section 1411 of the Internal Revenue Code.