# Commercial Invoice: Definition, Required Fields, and Template (2026) > Commercial invoice explained. What it is, what fields are mandatory, when SaaS sellers use them, and how MoR billing handles cross-border invoicing. - **Author**: Aarthi Poonia - **Published**: 2026-06-12 - **Category**: Billing, Cross-Border, Invoicing - **URL**: https://dodopayments.com/blogs/commercial-invoice-guide --- A commercial invoice is the primary document used in international trade transactions. It is issued by the seller to the buyer and serves as the official record of a sale across borders. Customs authorities use it to calculate duties and taxes. Banks use it for trade finance. Buyers use it for accounting and import compliance. For SaaS businesses, commercial invoices appear less often than for physical goods, but they are still relevant for cross-border B2B contracts, professional services, and any deal that requires the customer's bank or AP system to process an international payment. This guide explains the document, the required fields, and how modern SaaS billing handles cross-border invoicing. ## What a commercial invoice is A commercial invoice is the legal document evidencing the sale of goods or services from a seller in one country to a buyer in another. It differs from a domestic invoice in that it contains additional fields required for international compliance: - Customs classification (for physical goods) - Country of origin - Incoterms (shipping terms) - Currency and payment instructions - Both the seller's and the buyer's tax registration details For pure SaaS (no physical goods crossing borders), the commercial invoice is simpler but still important. It documents the transaction in a form that the buyer's bank, AP team, and tax authorities can recognize. ## When SaaS uses commercial invoices ### 1. International B2B contracts paid by wire A US-based SaaS selling a $50K annual contract to a customer in India will often issue a commercial invoice. The Indian buyer's bank may require it to process the outbound international wire. The buyer's AP and tax teams use it for accounting and TDS (tax deducted at source) calculations. ### 2. Cross-border professional services If your SaaS includes implementation services, training, or consulting delivered across borders, a commercial invoice documents the services for customs and tax purposes (some jurisdictions require it for services valued above a threshold). ### 3. Trade finance scenarios If the buyer is using a letter of credit, factoring, or invoice discounting to pay for your SaaS, a commercial invoice is part of the document package the bank requires. ### 4. Hardware-adjacent SaaS Some SaaS ships physical components (USB security keys, branded swag, on-prem appliances). Any physical good crossing a border needs a commercial invoice for customs. ## Required fields on a commercial invoice The exact fields vary by destination country, but a standard set includes: | Field | Purpose | |---|---| | Seller name and address | Identifies the legal seller | | Seller tax ID (VAT, EIN, GSTIN) | For tax authorities | | Buyer name and address | Identifies the legal buyer | | Buyer tax ID (where required) | For buyer's tax compliance | | Invoice number | Unique sequential reference | | Invoice date | When the invoice was issued | | Description of goods or services | What was sold | | Quantity | How many units | | Unit price | Per-unit value | | Total price | Quantity times unit price | | Currency | The transaction currency | | Country of origin (physical goods) | For customs classification | | HS code (physical goods) | Harmonized System code for tariffs | | Incoterms (physical goods) | Shipping responsibility split | | Payment terms | Net 30, immediate, etc. | | Payment method | Wire, card, ACH | | Bank details (for wire) | Where to send payment | | VAT / GST amount | Tax breakdown | | Total payable | Final amount | | Signature (some jurisdictions) | Seller authentication | For SaaS-only (no physical goods), the HS code, country of origin, and Incoterms fields are typically omitted or marked "services" / "N/A". ## Country-specific requirements ### European Union EU buyers receiving services from non-EU SaaS often need to handle reverse-charge VAT. The commercial invoice should: - State "Reverse charge applies" if the supply is reverse-charged - Include the buyer's VAT number - NOT include EU VAT on the invoice (the buyer self-accounts) ### India Indian buyers may need to apply TDS (tax deducted at source) on foreign payments. The invoice should: - Include the seller's PAN or foreign tax ID - State the service nature clearly (TDS rates vary by service type) - Be in a format that supports the buyer's Form 15CB / 15CA process ### United Kingdom (post-Brexit) UK has its own VAT rules separate from EU. Commercial invoices to UK buyers should: - Reference the seller's UK VAT registration (if applicable) - Use the reverse-charge wording where appropriate - Show the GBP-equivalent amount if invoicing in another currency ### United States The US does not have a federal VAT, but cross-border invoices to US buyers should: - Show the seller's EIN or foreign tax ID - Be denominated in USD where possible (or include USD equivalent) - Reference any applicable W-8BEN withholding tax arrangements ### China Chinese buyers often need a "fapiao" (official tax invoice) issued through the Chinese tax system to claim VAT credit. Non-Chinese sellers cannot issue fapiao directly; the commercial invoice serves as supporting documentation. ## Commercial invoice vs other invoice types | Document | Purpose | |---|---| | Commercial invoice | International sale, customs and tax compliance | | Proforma invoice | Preliminary preview before the sale closes | | Tax invoice | Domestic VAT/GST sale with input tax credit | | Sales receipt | Acknowledgment of payment received | | Credit note | Adjustment for returns or discounts | | Debit note | Adjustment for additional charges | A commercial invoice can also serve as a tax invoice if it meets the buyer's jurisdiction's tax invoice requirements. The distinction is mainly conceptual; the document just has to contain the right fields. ## Commercial invoice for SaaS template A minimal SaaS commercial invoice: ``` COMMERCIAL INVOICE Invoice Number: INV-2026-0042 Invoice Date: 2026-06-15 Currency: USD SELLER: Your SaaS Inc 123 Main St San Francisco, CA 94105 United States EIN: XX-XXXXXXX BUYER: Acme Pvt Ltd 456 MG Road Bangalore, Karnataka 560001 India GSTIN: 29AAACX1234A1Z5 Description of Services: Annual SaaS subscription for [Product Name] Coverage period: 2026-07-01 to 2027-06-30 Number of seats: 50 Service Code: 998314 (Software services) Quantity: 1 Unit Price (USD): 25,000.00 Total (USD): 25,000.00 Tax: Reverse charge applies under destination-based service tax Total Payable: USD 25,000.00 PAYMENT INSTRUCTIONS (illustrative placeholders only - replace with your actual bank details): Bank Name: Acme Bank Account Number: XXXXXXXXXX SWIFT: ACMEUS33 Routing (US ACH): XXXXXXXXX Reference: INV-2026-0042 Payment Terms: Net 30 days from invoice date ``` ## Common mistakes ### 1. Missing buyer tax ID For B2B cross-border transactions, omitting the buyer's VAT/GST/PAN can prevent the buyer from claiming input tax credit and can create withholding tax issues. ### 2. Incorrect or missing service classification Some countries (India, China) require service classification codes on invoices. Omitting them can delay payment or create compliance issues. ### 3. Confusing the seller's tax position If the seller is registered for VAT in the buyer's country, the invoice should include that VAT registration and may need to show VAT on the invoice. If not, the invoice typically uses reverse-charge wording. Mixing these up creates confusion. ### 4. Single currency assumption Some buyer banks require the invoice to be in the local currency. International wire instructions sometimes require both the invoice currency and a local equivalent. Plan for both. ### 5. No invoice numbering convention Commercial invoices need clear, sequential, non-duplicating numbers. A numbering convention that includes year, type, and sequence (INV-2026-0042) is easy to manage and audit. > Cross-border invoicing for SaaS is mostly about anticipating the buyer's compliance friction. The cleaner the invoice, the faster the wire arrives. A messy invoice creates 3-week delays. > > \- Ayush Agarwal, Co-founder & CPTO at Dodo Payments ## How merchant of record handles commercial invoicing When you sell through a [merchant of record](https://dodopayments.com/blogs/what-is-a-merchant-of-record), the MoR is the legal seller and issues commercial invoices to customers under its own identity. The MoR: - Registers for VAT/GST in jurisdictions where required - Issues invoices with the correct tax treatment per destination country - Handles reverse-charge wording, local tax IDs, and country-specific compliance - Settles the customer-side complexity, leaving you with a clean platform payout For Dodo Payments specifically, this means a US-based SaaS selling to customers in India, EU, and Japan does not have to issue three different commercial invoice variants. The MoR handles each country's invoice requirements on your behalf, across 220+ countries and regions. ## Quick checklist For each cross-border SaaS invoice: - [ ] Seller details with tax ID - [ ] Buyer details with tax ID (where required) - [ ] Unique invoice number - [ ] Clear service description and pricing - [ ] Currency stated explicitly - [ ] Correct tax treatment (VAT charged, reverse-charge, or exempt) - [ ] Payment instructions including bank details - [ ] Payment terms - [ ] Country-specific compliance fields (HS code if shipping goods, service code if required by buyer's jurisdiction) ## FAQ ### What is a commercial invoice? A commercial invoice is the primary document used in international trade transactions. It is issued by the seller to the buyer and contains all the information needed for customs, tax, and accounting purposes. For SaaS, it documents cross-border B2B sales. ### Is a commercial invoice the same as a regular invoice? Similar but with additional fields for international compliance. A commercial invoice includes the buyer's and seller's tax IDs, currency information, payment terms, and (for physical goods) customs classification details. A regular invoice may lack these for domestic transactions. ### When does a SaaS need a commercial invoice? For international B2B contracts paid by wire, cross-border professional services, trade finance scenarios, or any deal where the customer's bank or AP system requires invoice documentation for an international payment. ### What is the difference between a commercial invoice and a proforma invoice? A proforma invoice is a preliminary document sent before the sale closes (for quote, customs documentation, or bank approval). A commercial invoice is the formal sales document issued at or after the sale, creating accounting and tax obligations. ### How does a merchant of record affect commercial invoicing? When the MoR is the legal seller, it issues commercial invoices to customers under its own identity, handling country-specific compliance for each destination. The underlying SaaS supplier does not have to issue separate commercial invoices per country. ## Conclusion Commercial invoicing is one of the underappreciated friction points in cross-border SaaS sales. Cleanly formatted invoices with the right tax treatment per destination get paid on time. Messy ones get stuck in the buyer's bank or AP process for weeks. If you want cross-border invoicing handled correctly per country without managing 50+ country-specific templates, [Dodo Payments](https://dodopayments.com) operates as merchant of record with full compliance coverage. See [pricing](https://dodopayments.com/pricing). --- - [More Billing articles](https://dodopayments.com/blogs/category/billing) - [All articles](https://dodopayments.com/blogs)