There are a few key differences between regular PayPal and PayPal Business. The first is that PayPal Business allows you to create invoices and receive payments securely online. You can also set up recurring billing or create custom buttons for your website. Another key difference is that PayPal Business offers a merchant cash advance program. This program provides businesses with working capital based on their future sales volume. This can be a great option for businesses that need cash flow to grow or expand their operations.