At a minimum 6 to 9 months. So stuff on air now (IN USA) will pay in September’s BMI Check. Music airing next quarter will pay in Jan 2018’s check. Foreign royalties will take even longer. My advice, don’t even think about it. They eventually show up. This is not a business for those who are in a hurry to get paid. Thankfully we get paid fast in AJ. For PRO royalties…you better be ready to remain very very very very very very patient. As patient as patient gets.