An Invoice with sales tax is a document that is issued by a seller (vendor) to a buyer (customer) for the goods or services sold. It typically contains information such as the purchase price, quantity, product description, applicable sales tax, and payment terms. The purpose of an invoice with sales tax is to collect sales taxes due on the goods or services purchased. There are two main types of invoices with sales tax: 1. Taxable Invoice: This type of invoice includes sales tax, as the name implies. It is used when the seller is required to collect sales taxes from the buyer on the goods or services purchased. 2. Non-Taxable Invoice: This type of invoice does not include sales tax, as the name implies. It is used when the buyer is exempt from paying sales taxes, such as when purchasing goods or services from another state or country.