If you are paid monthly, and do not expect to get an annual bonus, multiply your monthly gross income by 12 to determine the gross annual salary.
Os ydych chi’n cael eich talu'n fisol, ac nad ydych chi’n disgwyl cael bonws blynyddol, lluoswch eich incwm misol gros â 12 i bennu'r cyflog blynyddol gros.