Diman, lessor leased a lot to Dili, lessee for 15 years beginning January 2019, subject to the following terms and conditions:

Mothly rental

20000

Advance rental for 2 years

480000

Security deposit

Annual RPT to be paid to lessee

10000

Cost of building constructed by lessee

2800000

Building completed on July 1, 2021

Estimated life of the building 20

Under the Spread-out method ,determine the taxable income of lessor bobby for 2018,2019,2020,2021,2022. Provide step by step solution.

Please provide answer ASAP!