Depending on the laws of each state, there will be differences between products that are taxed and those that are not. There are websites available that list the taxable amounts of products and services, an example of which you can find at http://www.taxadmin.org. You are able to find links to the websites of the state tax authorities or you can click the link to see a simplified state sales tax directory.
For example, New Jersey states that clothing under a certain amount is tax-free; baby or adult diapers are tax-free; clothing accessories or protective clothing are taxable, yet protective clothing is tax-free if it is required to be worn to work every day.
In summary, taxpayers need to state whether or not to charge sales tax according to the tax rules of each state. If you would like more information or further advice, feel free to contact us.