Troy, a cash basis taxpayer, is employed by Eagle Corporation, also a cash basis taxpayer. Troy is a full-time employee of the corporation and receives a salary of $60,000 per year. He also receives a bonus equal to 10% of all collections from clients he serviced during the year. Determine the tax consequences of the following events to the corporation and to Troy:
a. On December 31, 2017, Troy was visiting a customer. The customer gave Troy a $10,000 check payable to the corporation for appraisal services Troy performed during 2017. Troy did not deliver the check to the corporation until January 2018.

b. The facts are the same as in part (a), except that the corporation is an accrual basis taxpayer and Troy deposited the check on December 31, but the bank did not add the deposit to the corporation’s account until January 2018.
c. The facts are the same as in part (a), except that the customer told Troy to hold the check until January 2018 when the customer could make a bank deposit that would cover the check.