Answer:
Cash basis OF accounting method $701,600
Accrual basis of accounting method$726,500
Explanation:
Computation of Al's gross income for 2020 using cash basis of accounting method
Gross income
Cash $687,600
Add advance payment $14,000
Total $701,600
Therefore Al's gross income using cash basis of accounting method will be $701,600
Computation of Al's gross income for 2020 using accrual basis of accounting method
Cash received $701,600
($687,600+$14,000)
Less: Income received but will not be earned until 2021 ($14,000)
Less: Beginning of year accounts receivable ($57,600)
Add End of year accounts receivable $96,500
$300,000
Total $726,500
Therefore Al's gross income using accrual basis of accounting method will be $726,500