Free Invoice Template (PDF & Word) – 2026

A invoice done badly creates more legal exposure than no document at all, because it puts in writing the misunderstanding that would otherwise have been resolved by a phone call. The template below is one we would actually use ourselves. Free PDF and editable Word.

This page provides free invoice templates in PDF and Microsoft Word format, including standard service invoice, blank invoice, commercial invoice (for international shipments), and proforma invoice (for quotes and commitments). Each template includes all standard fields that accounting software, customers, and tax authorities expect.

A Concrete Example

A consulting firm sends two invoices in the same week. Invoice A: itemized line items, payment terms of Net 15, click-to-pay link, late fee disclosure of 1.5%/month, sent the day work completed. Invoice B: single line “consulting services,” Net 30 implied, sent four weeks after work completed, no late fee mentioned. Invoice A gets paid in 12 days. Invoice B gets paid in 47 days, after two follow-ups.

The difference is not the client — it is the invoice design. Days-to-pay correlates directly with three factors: how quickly the invoice is sent after work completion, how easy payment is (click-to-pay vs. mail a check), and whether late fees are disclosed (psychological signal that delay has cost). The template below builds all three in by default.

Types of Invoices

Standard Invoice

The default invoice for most B2B and B2C transactions. Issued after goods or services are delivered, demands payment by a specified date (typically Net 30). Includes line items, prices, taxes, and total due.

Proforma Invoice

A preliminary invoice sent BEFORE delivery, typically as part of a quote or commercial commitment. Common in international trade, where customs authorities require a proforma for clearance. Not a demand for payment; the formal invoice follows delivery.

Commercial Invoice

Required for international shipments to clear customs. Includes specific information beyond a standard invoice: HS codes (Harmonized System tariff classification), country of origin, Incoterms (FOB, CIF, etc.), shipping details, declared value for customs.

Recurring Invoice

Issued on a regular schedule (weekly, monthly, quarterly) for ongoing services — subscriptions, retainers, recurring deliverables. Often paired with auto-payment authorization.

Required Invoice Fields

• «Invoice» label and unique invoice number. Sequential numbering supports audit and dispute resolution.
• Issue date and due date. Both required for collections and statute of limitations.
• Seller information. Legal name, address, phone, email, tax ID (EIN/VAT).
• Buyer information. Legal name, billing address, contact, PO number if applicable.
• Itemized line items. Description, quantity, unit price, line total.
• Subtotal, taxes, total due. Calculated transparently.
• Payment terms. Net 30, Net 15, etc.
• Payment methods. Check, ACH, wire, credit card, payment platform links.
• Late fee or interest disclosure. Required if you plan to charge late fees.
• Notes or thank-you message. Optional but improves payment psychology.

Best Practices for Faster Payment

• Invoice promptly. Days-to-pay correlates with days-to-invoice. Don’t wait until month-end.
• Set short payment terms. Net 15 or Net 7 generally gets paid faster than Net 30.
• Offer early payment discount. «2/10 Net 30» (2% off if paid in 10 days) accelerates cash flow.
• Make payment easy. Include click-to-pay links for credit card and ACH.
• Follow up promptly. Day-of-due reminder and 7-day overdue notice are standard.
• Use accounting software. QuickBooks, Xero, FreshBooks automate invoicing, reminders, and reconciliation.

Common Mistakes

• No invoice number — makes tracking and disputes harder.
• Vague line items — «consulting services» with no detail invites disputes.
• Missing payment terms — open-ended invoices get paid last.
• No payment method instructions — buyer doesn’t know where to send the check.
• Wrong tax calculation — particularly across state lines or for international.
• Sending to the wrong contact — buyer’s AP department often differs from the buyer contact.

Frequently Asked Questions

What is an invoice?

An invoice is a commercial document issued by a seller to a buyer, listing goods or services provided, quantities, prices, and total amount due. Invoices are the legal record of a sale and the basis for the seller’s right to payment.

What is the difference between an invoice and a receipt?

An invoice is issued BEFORE payment and demands payment. A receipt is issued AFTER payment is received as proof of payment. The two documents serve different purposes — both should be retained.

What information must an invoice include?

Invoice number, date, seller and buyer details, itemized goods/services with quantities and prices, subtotal, taxes, total amount due, payment terms (e.g., Net 30), accepted payment methods, and the seller’s tax identification (EIN or VAT number where applicable).

What is a proforma invoice?

A proforma invoice is a preliminary invoice sent BEFORE goods or services are delivered, typically as a quote or commitment of price and terms. It is not a final demand for payment and is commonly used in international trade for customs purposes.

What is Net 30?

Net 30 means payment is due 30 days from the invoice date. Other common terms: Net 7, Net 15, Net 60, Net 90. «2/10 Net 30» means a 2% discount if paid within 10 days, otherwise full amount due in 30 days.

Can I charge interest or late fees on unpaid invoices?

In most U.S. jurisdictions, yes, provided the invoice or underlying contract clearly states the late fee or interest rate. Common terms: 1.5% per month (18% annualized) for B2B. State usury laws cap maximum rates for consumer transactions.

How long should I keep invoices?

IRS guidance: 7 years for income-related records. Many businesses retain 10 years for general accounting and audit purposes. Digital storage is sufficient — paper not required.

Do I need to send invoices electronically or in paper form?

Electronic invoicing (email, billing portal) is fully valid for B2B and most B2C transactions. Some government or healthcare contracts require specific formats (EDI, XML). Paper is rarely required.

Download the Free Invoice Templates

Final note: nothing on this page is legal advice. The template reflects the current consensus best practice in U.S. law as of the publication date, but state-specific rules can differ in ways that matter. For routine, small-dollar uses, the template is usually sufficient. For anything where the downside risk exceeds a few thousand dollars, paying for an attorney review is the cheapest insurance you can buy.

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