What do the different earnings definitions mean?

Base wage: The employee's salary, hourly rate converted to salary, and monthly/quarterly/annual owner's draws.

Bonus: Any bonus amount that is paid out on a recurring frequency (monthly, quarterly, annually).

Commission: Any commission amount that is paid out on a recurring frequency (monthly, quarterly, annually).

W-2: Monthly earnings as reported on the W-2 received from your employer for the prior calendar or tax year. Zenefits currently does not support W-2 earnings as an earnings definition.