If you have recently created your InvoiceOcean account in the United States for your American company, you will see our update on sales tax. Instead of VAT rate on your invoice, you will see a sales tax that is used in the United States. Tax rates in the US vary depending on the state and the product you are selling. That's why for many businesses, managing tax rates on their invoices is that difficult!   In InvoiceOcean, you can easily add your sales tax rates to products on the invoice and have it automatically saved in the system. Check the instruction on how to proceed with sales tax on invoices.