Final answer:
The balance of the Allowance for Doubtful Accounts to be reported on the balance sheet at year-end is -$1,000.
Step-by-step explanation:
To calculate the balance of the Allowance for Doubtful Accounts on the balance sheet at year-end, we need to consider the adjustments made during the year. The balance at the beginning of the year was $6,800 credit. Accounts receivable of $9,000 were written off during the year, which reduces the balance. The estimated uncollectible accounts expense for the year, $7,200, increases the balance. So, the calculation is:
Beginning balance + Adjustment - Write-offs = Ending balance
$6,800 + $7,200 - $9,000 = -$1,000
Therefore, the balance of the Allowance for Doubtful Accounts to be reported on the balance sheet at year-end is -$1,000.