Key facts
- Amazon referral fee: 15% of the sale price in most categories, lower in some (for example 8% in several electronics categories).
- FBA fulfillment fee: per unit, by size tier and weight; monthly storage roughly triples in Q4.
- Settlements close about every 14 days and funds arrive a few business days later.
- Amazon Lending is invite-only and sees only Amazon sales; Onramp Funds underwrites on combined sales across nine platforms.
Last updated September 7, 2026. Fee presets, payout timing, and Onramp Funds eligibility and fee example checked against the published sources listed at the end of this page.
How to use the Amazon profit calculator
Enter your selling price and landed product cost. The Amazon preset loads a 15% referral fee, a typical FBA fulfillment fee, and a 14-day payout cycle; edit any of them to match your category and size tier. The result is net profit per unit, margin, markup, and break-even price, plus a cash timeline for a month of sales. Switch to Find my price to work back from a target margin.
Amazon fees this calculator accounts for
Fee schedule checked September 7, 2026 against Amazon's published selling fees and FBA rate card; confirm current rates in Seller Central.
- Referral fee: 15% of the sale price in most categories, with lower rates in some (for example 8% in several electronics and appliance categories). Charged on the item price plus any shipping or gift wrap the buyer pays.
- FBA fulfillment fee: a per-unit pick, pack, and ship charge that depends on size tier and weight. Small standard items run in the low single dollars; large and heavy items run much higher. Enter your own from the FBA revenue calculator or your fee preview.
- Monthly storage: charged per cubic foot and roughly tripling from October through December. Divide your monthly storage bill by units sold and put it in fixed fees per order.
- Refund administration fee: Amazon keeps a portion of the referral fee on refunded orders, which is why the calculator treats returns as a cost rather than a full reversal.
- Payouts: settlements close about every 14 days and funds arrive a few business days later, with part of your balance often held in reserve against returns. The cash timeline uses this gap.
What makes this different from the FBA revenue calculator
Amazon's own calculator is accurate for fees on a single ASIN but stops at per-unit profit. This one adds returns, ad cost, and the payout delay, then shows your cash position across a month of sales. It also imports your Payments Date Range or Settlement report so the fee and refund rates come from your account rather than a rate card.
- Cash timeline: every result shows when the money goes out, when the payout lands, and the week your cash bottoms out. None of the free fee calculators we reviewed in September 2026 does this.
- Import your own export: upload a payments or settlement report and the calculator fills in your real fees, refunds, and payout timing. The file stays in your browser.
- Compare two scenarios side by side, share a link with your numbers, or save the result as a PDF.
The payout gap is the real cost of selling on Amazon
A healthy Amazon business pays its supplier months before the first unit sells and then waits two weeks or more for each settlement. That is the working capital Amazon Lending exists to fill, but it is invite-only and sees only your Amazon sales. Onramp Funds advances capital against your combined sales across Amazon and eight other platforms, with a flat fee disclosed upfront and repayment as a percentage of sales. No personal credit check. See how much capital your combined revenue unlocks.
Sources
Frequently asked questions
What is a good profit margin on Amazon?
Most FBA sellers target 15% to 30% net per unit after referral, fulfillment, storage, returns, and ads. Below 10% leaves no room for a fee increase or a promotion.
How do I find my exact FBA fee?
Use Amazon's FBA revenue calculator or the fee preview report in Seller Central, then enter that figure in the fulfillment fee field here.
Does this calculator include advertising?
Yes. Enter total ad spend divided by units sold in the ad cost per unit field. Sponsored Products often runs 10% to 20% of sales for growing listings.
Does this calculator store my data?
No. Everything runs in your browser and nothing is uploaded.
Onramp Funds
Funding built around your sales
Connect your store and see what you qualify for. Repay as a percentage of sales, with no personal credit check.
Funding in as little as 24 hours.
