- Start with the transaction stage: quote, completed sale, sample, warranty replacement, return, or another non-sale shipment. Do not choose the document only from the product title.
- For a quote, prepare a pro forma with enough detail for the buyer to evaluate the offer: product description, quantity, price, weight, Incoterm, payment terms, estimated shipping treatment, and a validity date where relevant.
- For a completed sale, prepare the commercial invoice with the final buyer, seller, item lines, quantity, currency, actual shipment value, country of origin, and any carrier-requested customs data.
- Keep product facts reusable across both documents: SKU, material, function, model, quantity, origin, and a candidate HS code where the route requests one. Use the description checker before turning a storefront title into a customs line.
- Compare the commercial invoice amount against the final order, payment, promotion, and packing data. A quote amount is not automatically the final transaction value.
- Check Incoterms, importer arrangement, shipment route, and carrier requirements. These facts can change who needs the document and which fields must be present.
- Generate a working commercial invoice draft with the Commercial Invoice Generator, then compare it with the pro forma, order record, and packing data before dispatch.
- Verify final carrier and destination requirements before filing or shipping. This guide prepares the decision and data handoff; it does not determine customs acceptance.
Guide
Pro Forma Invoice vs Commercial Invoice for International Shipping
Compare pro forma and commercial invoices for international shipping: quote stage, sold goods, samples, document drafts, and the carrier or destination checks needed before dispatch.
Answer Summary
Preparation checklist
A pro forma invoice and a commercial invoice share many fields, but they answer different points in the ecommerce workflow: quote before sale versus records for goods actually sold and shipped.
Trade.gov describes the pro forma as an invoice-format quote. It can carry product, price, weight, Incoterm, and payment assumptions before the final transaction is fixed.
Trade.gov describes the commercial invoice as a document used for export and import clearance; customs may use it to assess duties and taxes. Destination and carrier requirements can add fields or require a different process.
A sample, warranty replacement, return, or no-charge shipment is not automatically a pro forma case. Record the transaction purpose and confirm the carrier and destination instructions before dispatch.
Required fields or decision table
Fields to prepare before the document draft
| Field or decision | What to prepare |
|---|---|
| Pro forma invoice | An invoice-format quote or preliminary document. Use it to show proposed goods, prices, quantities, weights, Incoterms, payment assumptions, and the validity period before a final sale is fixed. |
| Commercial invoice | A transaction document for goods actually sold. It normally carries final parties, item lines, value, currency, origin, and shipment facts used in commercial and customs workflows. |
| Quote stage | Use a pro forma to make assumptions visible. Do not present an estimate as the final transaction record when quantity, value, buyer, or shipment terms can still change. |
| Sale and shipment stage | Prepare the commercial invoice or carrier-required electronic equivalent once the sold goods and shipment facts are final. |
| Samples, replacements, and returns | Use the documented purpose and carrier/destination instructions. These shipments may require a pro forma or commercial invoice, but they still need accurate goods, value, origin, and reason-for-export facts. |
| HS code and origin | A candidate HS code and country of origin are product facts, not a shortcut to document selection. Verify the destination code and document format before filing or shipping. |
| Verification step | Check the carrier workflow, destination requirement, shipment value, Incoterm, and actual transaction purpose before dispatch. |
Step-by-step preparation
How to prepare the draft
Ecommerce example
How this looks in a seller workflow
A supplier quotes an ecommerce merchant for 500 ceramic mugs before production. The pro forma records the proposed quantity, unit value, carton weight, Incoterm, payment terms, expected shipping treatment, and expiry date. After the buyer confirms the order and the factory packs the goods, the seller prepares a commercial invoice with the final invoice number, actual item totals, buyer, country of origin, package data, and candidate HS code record. The two documents can share product facts, but the commercial invoice should reflect the shipment that actually moves. The seller checks the carrier workflow before dispatch because a sample, a split shipment, or a changed order can need a different document outcome.
Verification checklist
Review the record before it enters a shipment or filing workflow
Before a document draft is used, compare it against the order record, product catalog, carrier label, and any destination-specific instructions. The preparation checklist should confirm parties, shipment channel, item descriptions, value, currency, quantity, weight, origin, HS code candidate, and any package or reference fields.
What is required depends on shipment value, carrier, destination, and product facts, so a field that is optional in one postal or carrier workflow may be required in another. When a draft supports a repeated SKU, save the checked inputs with the product record so future shipments start from reviewed data.
Use the draft as a review artifact: it should make weak descriptions, missing origin, inconsistent values, and unsupported HS code candidates easy to spot before the parcel is handed to a postal operator, carrier, marketplace label flow, or freight team.
Source-backed checks
What external guidance supports this workflow?
- Trade.gov: Pro Forma InvoiceDescribes a pro forma as an invoice-format quote and lists typical quote and planning fields.
- Trade.gov: Commercial InvoiceExplains the commercial invoice role in export/import clearance and the need to check destination requirements.
- FedEx international shipping FAQsDistinguishes a pro forma used before an actual sale from the commercial invoice for goods that have been sold.
Common mistakes
What to avoid
- Using a quote amount as the final shipment value after the order, quantities, discount, or buyer details changed.
- Treating all no-charge, sample, warranty, and return shipments as the same document case.
- Leaving product description, quantity, origin, currency, or destination-specific customs data blank because the pro forma is preliminary.
- Using a marketing product title instead of a factual goods description on the commercial invoice.
- Assuming a pro forma is accepted for every carrier or destination workflow.
- Treating a candidate HS code as final classification or using the ship-from country instead of country of origin.
- Not reconciling the final commercial invoice against the order, payment record, and packing data before dispatch.
Editorial
Editorial review note
Written by the TariffCatalog Editorial Team for ecommerce document preparation workflows. The page is designed as a preparation checklist, not a filing outcome.
Maintained by Ryan Cole, with review focused on ecommerce catalog, document, and source-check workflow clarity.
Document requirements may be required differently by carrier, destination, shipment value, and product facts. Use the methodology, sources, and corrections pages to understand how the page is maintained.
Official source note
References to verify
Use official sources, carrier guidance, postal operator rules, and destination requirements to verify before filing or shipping.
USITC HTS
Use this official source when checking final classification, duty treatment, or customs requirements.
CBPUse this official source when checking final classification, duty treatment, or customs requirements.
EU TARICUse this official source when checking final classification, duty treatment, or customs requirements.
UK Trade TariffUse this official source when checking final classification, duty treatment, or customs requirements.
FAQ
Common questions
When should I use a commercial invoice?
Use a commercial invoice when the shipment represents an actual sale or when the carrier requests transaction-value document data. It should include final parties, values, item lines, origin, currency, and Incoterms.
When should I use a proforma invoice?
Use a proforma invoice for quotes, buyer approval, pre-shipment review, samples, or situations where final transaction details are not fixed. It is a preparation document, not a replacement for every commercial invoice workflow.
Can a proforma invoice be used for samples?
Sometimes. Sample shipments may use proforma or commercial invoice data depending on carrier and destination rules. The reason for export should clearly state sample when accurate, and value should still be declared as required.
Do both documents need HS code candidates?
Often yes. HS code candidates help connect product facts to duty and document review. Treat them as preparation aids and verify the full national code in official sources before filing or shipping.
Does a proforma invoice prove final value?
No. A proforma invoice often shows expected or quoted value. The final commercial invoice should reflect the actual transaction value and shipment facts when the goods move.
Can I turn a proforma into a commercial invoice?
Yes, but review every field first. Quantity, value, date, buyer details, origin, and Incoterms may change between quote and shipment. Do not assume the proforma data is still accurate.
Which invoice do ecommerce sellers use most?
For actual cross-border sales shipments, ecommerce sellers most often prepare a commercial invoice or carrier-required electronic equivalent. Proforma invoices are useful earlier in the workflow.
What should I verify before shipping?
Verify shipment type, value, currency, product descriptions, origin, HS code candidates, Incoterms, and carrier requirements before filing or shipping.
Disclaimer
TariffCatalog provides informational tools and preparation workflows only. Verify final classification, rates, document requirements, and filing treatment with official sources or licensed professionals.