Recurring commission affiliate programs are where you earn repeat commissions from the same sale, over time. For example, let’s say a reader uses your affiliate ID to sign up for a monthly software service at $20.00 per month. You earn a 30% commission initially — or $6.00 (20 x .30 = 6). But in this case, you would also earn 30% or $6.00 every month thereafter as a recurring commission, as long as the reader continues to use that service. In a year, you would make $72.00.