Jack Company provides for bad debts expense at the rate of 2% of credit sales. The following data are available for 2013:

Allowance for doubtful accounts, 1/1/13 (Cr.)
$ 12,000
Accounts written off as uncollectible during 2013
9,000
Credit sales in 2013
1,500,000

The Allowance for Doubtful Accounts balance at December 31, 2013, should be: