Here is the link to set up invoicing with your authorize.net gateway.
Login and add invoicing for no additional fees.
Features & Benefits of Invoicing
Prompt payment can help solve many of the cash flow issues that affect small businesses. Invoicing is perfect for businesses that need to send simple, no-hassle invoices to anyone with an email address—and it’s mobile-friendly.
Quick & Easy Payments
Receive payment within days, which reduces the cost and delay of getting paid by paper invoices.
No Integration Required
Start sending invoices without any development or customization.
Allow customers to easily view—and pay—from any device.
Multiple Payment Methods
Accept both credit cards and eCheck.Net®.
Include custom discounts for any invoice.
Review the status of every invoice, and resend as needed, from the invoicing dashboard.