We pay all affiliate commissions on the 1st and 15th of every month, for products that have passed the guarantee period. All payments are done by PayPal.
Most products we sell have a no-questions asked money-back guarantee, and this is referred to as the "Guarantee Period". Only sales that have passed this period are considered final, and eligible for affiliate payout. Depending on the product, this could be seven days or thirty days, and some products have no guarantee period.
Here's an example calculation of affiliate commission payout:
Sale Date: 5th January
Guarantee: 30 days
In the example above, since the sale you made has a 30-day guarantee, your commissions will be considered eligible for payout on February 04. Since the first payout date (1st February) has passed, commissions for this sale will be paid to you on the 15th of February.