Is a proforma invoice a legally binding contract?

A proforma invoice is generally not a legally binding contract on its own, as it is considered a good-faith estimate. However, once the buyer agrees to the terms and issues a formal Purchase Order (PO) or signs the document, the pricing and terms become binding. Use Makeform's digital signature feature to capture this agreement.

What is the difference between a proforma and a commercial invoice?

A proforma invoice is a preliminary bill sent before goods are delivered, used to secure funding or clear customs. A commercial invoice is the final, official bill of sale issued after the transaction is complete. The commercial invoice requests final payment and is used for official tax and accounting purposes.

Can a proforma invoice be used for customs clearance?

Yes, customs authorities routinely accept proforma invoices to assess import duties and taxes when a commercial invoice isn't yet available. To avoid border delays, ensure your form includes accurate Harmonized System (HS) codes, country of origin, shipping weights, and exact item values.

Should I include sales tax or VAT on a proforma invoice?

Yes, you should include all applicable taxes, including sales tax or Value Added Tax (VAT), to give the buyer an accurate estimate of the final cost. If the transaction is an international export that is tax-exempt, clearly state the exemption reason on the document.

Can buyers use a proforma invoice to pay?

Yes, buyers frequently use proforma invoices to process advance payments, deposits, or to open a Letter of Credit (LC) with their bank. Because it outlines the exact costs, accounts payable departments can authorize the release of upfront funds before the final commercial invoice is issued.

How long is a proforma invoice valid?

Most proforma invoices are valid for 30 to 90 days, depending on industry standards and material price volatility. You should always include a specific 'Valid Until' date on your form to protect your business from unexpected increases in manufacturing or freight costs.

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✨ Makeform is in Beta

Free AI Proforma Invoice Form Generator

Create professional proforma invoices in seconds — accurate, customs-ready, and designed for global B2B transactions.

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Proforma Invoice Templates

Start with a Professional Billing Template

Choose from industry-standard preliminary billing templates and customize them for your specific trade requirements.

Standard Advance Payment

Generate preliminary bills to secure upfront funding or deposits before shipping goods.

International Export Proforma

Customs-ready template including HS codes, Incoterms, and country of origin declarations.

Service Quote Invoice

Draft estimated billing for consulting, freelance, or agency project milestones.

Manufacturing Order Proforma

Detailed breakdown of raw materials, production costs, and estimated freight charges.

What Is a Proforma Invoice Form?

The Foundation of Secure B2B Transactions

A proforma invoice form is a preliminary bill of sale sent to buyers in advance of a shipment or delivery of goods. Unlike a standard commercial invoice, it acts as a good-faith estimate that outlines the exact items, prices, shipping weight, and delivery terms. In international trade, buyers use these documents to arrange financing, open letters of credit, or secure import licenses from customs authorities. Pair it with an invoice request or order form to create a seamless quote-to-cash workflow.

Secures advance payments and letters of credit from buyers

Provides exact weight, value, and shipping details for customs

Establishes clear pricing terms before final production begins

Acts as a binding agreement when paired with a purchase order

How It Works

Generate Your Proforma Invoice in 3 Steps

Describe your transaction details, customize the pricing fields, and send a professional estimate to your buyer in minutes.

Real-World Examples

Proforma Invoice Scenarios

See how sales and export teams use proforma invoices to secure funding, clear customs, and finalize B2B agreements.

A manufacturer needs to send a customs-compliant preliminary bill to a European buyer to secure an import license.

Buyer

EuroTech Manufacturing GmbH

HS Code

8542.31 (Electronic Integrated Circuits)

Incoterms

CIF Hamburg (Cost, Insurance, Freight)

Total Value

$45,200.00 USD

Validity

Valid for 30 days (Expires May 1, 2026)

Payment Terms

Letter of Credit at Sight

Includes mandatory fields for cross-border trade like HS codes and CIF terms.

Proforma Invoice Form Checklist

Essential Fields to Include

Seller and buyer complete contact details and tax IDs

Unique proforma invoice number and date of issue

Detailed line items with quantities, unit prices, and descriptions

Harmonized System (HS) codes for international shipments

Estimated shipping weight, dimensions, and freight costs

Applicable Incoterms (e.g., FOB, CIF, EXW) and delivery locations

Payment terms, currency, and bank wire instructions

Validity period (expiration date of the quoted prices)

When to Use a Proforma Invoice

Common B2B Billing Scenarios

International Trade

Popular

Provide customs authorities with exact shipment values to calculate import duties and taxes before goods arrive.

Securing Financing

Allow buyers to present the document to their bank to open a Letter of Credit (LC) for large purchases.

Advance Payments

Request upfront deposits for large manufacturing runs, wholesale orders, or long-term service contracts.

Quoting & Estimates

Send a formal, binding quote that outlines exact costs and freight estimates before a purchase order is issued.

Best Practices for Proforma Invoices

Write Effective, Customs-Ready Documentation

Follow these financial and export guidelines to create preliminary bills that get approved faster and prevent border delays.

Clearly Label the Document

Always include 'Proforma Invoice' prominently at the top. This prevents buyers' accounting departments from accidentally paying it as a final.

Include an Expiration Date

Material costs and freight rates fluctuate. Always add a 'Valid Until' date (e.g., 30 days) to protect your margins if the buyer delays their.

Specify Incoterms for Exports

For international shipping, clearly state the Incoterms (like FOB or CIF) to define exactly who is responsible for freight, insurance, and customs.

Add Bank Details for Deposits

If you require an advance payment to begin production, include your exact wire transfer instructions and the required deposit percentage directly on.

Why Finance Teams Choose Makeform

Built for Professional B2B Billing

Everything you need to generate, calculate, and manage proforma invoices—powered by AI and designed for global trade.

AI-Powered Generation

Describe your transaction in plain English and get a complete, customs-ready proforma invoice in seconds.

Automated Calculations

Instantly calculate line-item totals, tax rates, freight estimates, and deposit percentages without manual math.

Digital Signatures

Collect legally binding sign-offs from buyers to confirm pricing and terms before production begins.

Multi-Currency Support

Generate estimates in USD, EUR, GBP, and more to accommodate international buyers and global trade.

PDF Export & Sharing

Instantly convert submissions into professional PDF documents ready for customs brokers or bank financing.

Secure Record Keeping

Store all preliminary quotes in a centralized, encrypted dashboard for easy conversion to final invoices.

How Makeform Compares

Proforma Invoice Form Solutions

See how Makeform stacks up against manual spreadsheets and traditional form builders for generating preliminary bills.

Feature	Makeform	Jotform	Google Forms
AI Form Generation	✅	❌	❌
Professional Templates	✅	✅	Limited
Digital Signatures	✅	Paid	❌
Conditional Logic	✅	✅	Limited
Mobile Optimized	✅	✅	Basic
Free Plan	✅	Limited	✅
Multi-Language	13 languages	Limited	Manual
Custom Branding	✅	Paid	Limited

Makeform is the only platform that combines AI-powered invoice generation with automated calculations, digital signatures, and mobile-friendly sharing—no accounting software required.

Frequently Asked Questions

Proforma Invoice Form FAQ

Common questions about preliminary billing, customs requirements, and best practices for international trade.

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