Signing up with Paypal will enable you to accept payments for affiliate commissions or products that you sell on your wordpress site.
See video tutorial below this article.
Free paypal accounts enable you to put payment buttons on your website. Buyers don’t need to be paypal members. Paypal also enables you to accept credit card payments on your site.
When you sign up to be an affiliate you can provide the information for the affiliate to make payments directly into your paypal account.