What is annual income monthly or yearly?
The word annual means "happening once per year," or "covering the period of a single year," so an annual income is the amount of money received over the course of a year.
If you divide the annual income by 12, assuming a steady rate of pay, you will get the monthly income.
So if the annual income were $60,000 it means that $60,000 would come in over the course of one year, and dividing that by 12 we find that each month $5,000 would be received.
The Financial Times, reporting on the Healthcare act, says that there are exceptions to the penalty for not having insurance depending on one’s annual income.