Amazon.com seller software · United States
Run Amazon.com decisions in USD with product-specific profit and PPC limits.
CEILR's US workflow is for sellers operating on Amazon.com who need product economics, keywords, advertising, cash and inventory in the same decision. It does not substitute a generic US benchmark for the seller's own numbers. Selling price, landed cost, Amazon/per-order fees, conversion evidence and available cash determine the decision boundary.
CEILR is published in the Amazon Selling Partner Appstore and supports US marketplace workflows. Each eligible seller authorizes their own Amazon connection. CEILR remains read-only to Amazon seller state.
What makes the US page different
Amazon.com economics should be modeled from the seller's actual US operation.
The US workflow is expressed in USD and keeps marketplace-specific costs and tax treatment seller/accountant supplied instead of pretending one generic US fee or tax model applies to every business.
USDUSD product economics
Price, costs, fees and advertising in the currency of the US operation.
USD product economics
Price, costs, fees and advertising in the currency of the US operation.CEILR can evaluate contribution and PPC ceilings from the seller's USD inputs. If a business reports costs in another home currency, the seller should use a consistent economic basis before comparing products.
FEEUse the actual Amazon.com fee evidence
No generic FBA/referral fee is silently inserted.
Use the actual Amazon.com fee evidence
No generic FBA/referral fee is silently inserted.Referral and fulfilment economics depend on product, category, dimensions, fulfilment method and current Amazon fee schedules. CEILR's free calculators therefore ask sellers to enter the applicable amounts rather than presenting a generic estimate as account truth.
TAXTax treatment stays explicit and seller-controlled
CEILR is not a sales-tax or income-tax adviser.
Tax treatment stays explicit and seller-controlled
CEILR is not a sales-tax or income-tax adviser.US sales-tax obligations and accounting treatment can vary by facts, jurisdictions and marketplace-facilitator rules. CEILR does not infer tax nexus or provide legal/tax advice. If tax materially affects the product economics being modeled, use the treatment confirmed by the seller's records or adviser.
PPCAmazon.com PPC uses product-specific limits
No universal “good CPC” or “good ACoS.”
Amazon.com PPC uses product-specific limits
No universal “good CPC” or “good ACoS.”A US$1.50 click can be safe for one ASIN and destructive for another. CEILR calculates the ceiling from contribution, protected profit and conversion evidence rather than an industry benchmark.
CASHSettlement and reorder cash remain separate from profit
Profitable traffic can still be unfundable.
Settlement and reorder cash remain separate from profit
Profitable traffic can still be unfundable.Fundable CPC limits growth by the cash actually available for the planned click volume after the seller considers inventory and other commitments.
INVUS inventory continuity
Demand creation should not ignore lead time.
US inventory continuity
Demand creation should not ignore lead time.Runway, reorder quantity and lead time belong beside PPC decisions. CEILR does not accelerate demand blindly into a stockout.
Worked US example
Calculate the USD CPC boundary before changing an Amazon.com bid.
This example is hypothetical and demonstrates the formula only. It is not a US marketplace benchmark or bid recommendation.
| Input / result | USD example | Arithmetic |
|---|---|---|
| Selling price | $44.95 | Seller-entered |
| Landed cost | $18.00 | Seller-entered |
| Amazon / fulfilment fees | $8.50 | Seller-entered verified amount |
| Other variable cost | $1.00 | Seller-entered |
| Pre-ad contribution | $17.45 | 44.95 − 18.00 − 8.50 − 1.00 |
| Break-even ACoS | 38.82% | 17.45 ÷ 44.95 |
| Conversion rate | 10% | Seller evidence |
| Break-even CPC | $1.75 | 17.45 × 10% |
| Protected contribution | $5.00 | Desired retained contribution/order |
| Profit-Safe CPC | $1.25 | (17.45 − 5.00) × 10% |
| Ad cash available | $1,000 for 1,200 planned clicks | Fundable CPC = $0.83 |
| Operating ceiling | $0.83 | Lower of Profit-Safe and Fundable CPC |
The US marketplace context changes the currency and seller evidence; it does not change the economic logic. A marketplace bid suggestion above $0.83 would exceed the stated cash-funded ceiling even though the product's break-even CPC is much higher.
US seller decision stack
Research, keywords, PPC, inventory and profit should converge on one next action.
| US seller question | CEILR workflow | Evidence boundary |
|---|---|---|
| Which product opportunity deserves capital? | Product research → contribution → cash/inventory | No fabricated competitor sales or rank. |
| Which competitor keyword is worth pursuing? | Reverse ASIN → relevance → listing/PPC economics | Provider evidence remains provider evidence. |
| What CPC can this ASIN afford? | Profit-Safe CPC + Fundable CPC | Uses seller economics and CVR evidence. |
| Should PPC scale? | Inventory runway + cash constraint | Profitable does not automatically mean fundable. |
| Did the seller action work? | Visibility evidence + Decision Memory | Rank movement is not treated as causal proof by itself. |
US decision tools
Use your actual USD economics.
Amazon profit margin calculatorContribution and post-ad margin.
Amazon CPC calculatorProfit-Safe click ceiling.
Amazon ACoS calculatorBreak-even versus profit-protected ACoS.
Global seller software pagex-default CEILR product context.
Australia versionGST-aware AU commercial context.
Decision support only. Seller remains responsible for accounting, tax and Amazon execution.
Amazon.com decision intelligence