how to sign up for an amazon fba account starts by registering as a professional seller on Amazon’s Seller Central. You’ll need to provide tax information, a valid ID, bank account details, and a credit card. After registration, enable FBA within your account settings to allow Amazon to handle fulfillment. From there, create your product listings, prepare inventory, and send products to Amazon’s fulfillment centers. The onboarding process is straightforward, and guides are available to walk you through each step.