If you get paid every other week, choose the "Every Other Week" option by choosing the day of the week that you get paid. The "Twice a Month" option is always fixed on the 1st and 15th of each month. If you’re paid on off-dates, say the 3rd and the 18th, simply enter two separate items for "Once-a-Month Incomes" – one on the 3rd and another on the 18th.