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 Melvins 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.