amazon fba cost to start depends on factors like product sourcing, shipping, Amazon fees, and marketing. On average, beginners can expect to invest $1,000 to $3,000, including costs for samples, initial inventory, FBA shipping, product photography, and advertising campaigns. Amazon charges a monthly seller fee ($39.99 for professional accounts), referral fees (usually 15% per sale), and FBA fees for storage and fulfillment. Managing these expenses wisely, along with choosing the right products, is key to maximizing profitability. Budgeting accurately upfront ensures smoother operations and better returns as your business scales.