This document calculates tax owed based on business income (BI) and deductible expenses. It determines the taxable income, basic fraction, excess fraction, tax on each, total tax owed, retained amounts, penalties, interest, and total payment due. It shows the taxpayer had BI of $50,000, expenses of $19,383, taxable income of $30,617, and owes a total of $2,544.50 in taxes including penalties and interest.