Final answer:
Ming Company should report a gross accounts receivable of $2,010,000 on its balance sheet at December 31, 2020, calculated by adding the net accounts receivable, bad debt expense, and accounts receivable written off.
Step-by-step explanation:
To determine what Ming Company should report on its balance sheet at December 31, 2020, as accounts receivable before the allowance for doubtful accounts, we start with the accounts receivable after the allowance for doubtful accounts, which is $1,620,000. Since the company had charges to bad debt expense of $270,000, we must add this amount back to the net accounts receivable to understand the gross value of accounts receivable before any allowances. Additionally, because accounts receivable of $120,000 were written off as uncollectible, this amount also needs to be added back to the net accounts receivable. The calculation is as follows:
Accounts receivable before allowance = Net accounts receivable + Bad debt expense + Accounts receivable written off
= $1,620,000 + $270,000 + $120,000
= $2,010,000
Therefore, the gross accounts receivable that Ming Company should report on its balance sheet at December 31, 2020, is $2,010,000 (option a).