A popup window will appear, where you will have to enter your Account Nick Name Or Username. Enter on “Create” button and on the next page you will get your affiliate code. You need to promote that code in order to earn commission. This code is only for the specific product and whenever someone use this code to buy the product, you get your commission.
In April 2008 the State of New York inserted an item in the state budget asserting sales tax jurisdiction over Amazon.com sales to residents of New York, based on the existence of affiliate links from New York–based websites to Amazon. The state asserts that even one such affiliate constitutes Amazon having a business presence in the state, and is sufficient to allow New York to tax all Amazon sales to state residents. Amazon challenged the amendment and lost at the trial level in January 2009. The case is currently making its way through the New York appeals courts.