How is income paid out in Ireland, in 12 monthly equal installments? In most German speaking countries yearly income is paid in 13 (Thirteen) increments. In other words, for example Germany, 1 and half months wages are paid in May (for summer hols) and again in November (for Xmas), total 13 months wages. In Switzerland end of November generally 2 months wages are paid. Obviously if a potential employer states a yearly income, it doesn't matter too much, but some state a monthly, where it does then make a big differance. Thanks.