The opening balance in prepaid expenses ($1,500) results from a one-year insurance premium paid on 7/1/09. Since this policy would have expired by 6/30/10, no part of the $1,500 is included in 12/31/10 prepaid expenses. The insurance premium paid on 7/1/10 ($3,200) would be partially expired (6/12) by 12/31/10. The remainder (6/12 × $3,200 = $1,600) would be a prepaid expense at year-end. The entire advance rental payment ($2,000) is a prepaid expense at 12/31/10 because it applies to 2011. Therefore, total 12/31/10 prepaid expenses are $3,600. Prepaid insurance ($3,200 × 6/12) $1,600 Prepaid rent 2,000 Total prepaid expenses $3,600