Can I use a proforma invoice for customs?

Sometimes, for an estimated value before shipping. But the commercial invoice is the official document customs uses to assess duties on the actual shipment.

Do the proforma and commercial invoice have to match?

They should be consistent. The commercial invoice reflects the final, actual details (real quantities, final shipping costs), so small differences are normal — but big unexplained gaps between the two can raise questions at customs.

Proforma vs Commercial Invoice

Proforma and commercial invoices both describe goods and prices, but they’re used at different stages — especially in international shipping.

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What is a proforma invoice?

A proforma invoice is a preliminary, good-faith estimate sent before the sale is finalized — used for quotes, advance payments, and to declare estimated value for customs.

What is a commercial invoice?

A commercial invoice is the final document issued for an actual international shipment. Customs uses it to assess duties and taxes on the goods.

Key differences

Stage: proforma before the sale; commercial for the actual shipment
Binding: proforma is an estimate; commercial is the final bill
Customs: both can be used, but the commercial invoice is the official customs document
Contents: commercial invoices need HS codes, country of origin and final values

Which one does the buyer need?

Buyers often ask for a proforma first — to arrange financing, open a letter of credit, apply for an import licence, or get internal approval — because it confirms the expected cost before committing. Once the goods actually ship, they need the commercial invoice to clear customs and record the purchase. So in a typical international order you’ll issue both: a proforma up front, then a matching commercial invoice at dispatch.

A typical order flow

Buyer requests a quote; you send a proforma invoice with estimated totals
Buyer confirms and (often) pays a deposit against the proforma
You prepare the goods and finalize quantities and shipping costs
You issue the commercial invoice for the actual shipment
Customs uses the commercial invoice to assess duties and taxes

FAQ

Can I use a proforma invoice for customs?: Sometimes, for an estimated value before shipping. But the commercial invoice is the official document customs uses to assess duties on the actual shipment.
Do the proforma and commercial invoice have to match?: They should be consistent. The commercial invoice reflects the final, actual details (real quantities, final shipping costs), so small differences are normal — but big unexplained gaps between the two can raise questions at customs.