TenorOpsInvoice & Document Makers · Invoice Maker
Free Invoice Template & Online Invoice Generator
Create, customize, and download professional client invoices with your logo, brand color, line items, discounts, and taxes—100% free.
1 · Brand & Invoice Header
Customize Your Invoice
From (Your Business)
Bill To (Client)
2 · Itemized Goods & Services
| Item Description | Quantity | Unit Price | Total | |
|---|---|---|---|---|
| $1,440.00 | ||||
| $380.00 | ||||
| $360.00 |
Invoice Summary
Live PDF Invoice Preview
Harborline Catering & Commissary LLC
740 W Fulton Market, Chicago, IL 60661
| Item | Qty | Unit Price | Total |
|---|
ACH Routing: 071000013 · Account: 884102994. Please reference INV-2026-089 on your remittance.
Step-by-step guide
How to Use the Free Invoice Maker
- 1Upload your company logo and pick a brand color
Personalize the invoice header with your logo image, accent color, and currency (USD, EUR, GBP, CAD, AUD, or INR).
- 2Enter seller, client, and invoice dates
Fill in your company contact details, client billing address, invoice number, issue date, and payment due date.
- 3List itemized goods or services
Add rows for every product, service, or labor charge with quantities and unit prices. Line totals update automatically.
- 4Apply discounts, taxes, and payment terms
Enter percentage discounts, sales tax / VAT / GST, and shipping or other charges, then print/save as PDF or export to CSV.
Formula & methodology
How Invoice Totals, Discounts & Taxes Are Calculated
An accurate client invoice separates line-item subtotals from commercial discounts, statutory taxes (Sales Tax, VAT, or GST), and reimbursable delivery or handling charges:
Line Total = Quantity × Unit Price Subtotal = Sum of all Line Totals Discount Amount = Subtotal × (Discount % ÷ 100) Taxable Base = Subtotal − Discount Amount Tax Amount = Taxable Base × (Tax % ÷ 100) Total Amount Due = Taxable Base + Tax Amount + Delivery / Other Charges
Worked Example: A catering invoice with $2,180.00 in line items, a 5% repeat-client discount (-$109.00), 8.25% sales tax on the discounted base (+$170.86), and a $45.00 delivery fee produces a final amount due of $2,286.89.
Common questions
Frequently Asked Questions
What is an invoice?
An invoice is a commercial billing document issued by a seller to a buyer itemizing the goods or services delivered, agreed unit prices, applicable taxes and discounts, payment terms, and the total amount due.
What details should be included on a professional invoice?
Every professional invoice should include your company name, logo, and contact info, a unique invoice number, issue and due dates, the client's billing name and address, an itemized table of goods or services with quantities and unit prices, subtotal, discounts, tax rate, total due, and clear payment instructions.
Is an invoice the same thing as a receipt?
No. An invoice requests payment after goods or services are delivered (or per milestone terms), whereas a receipt is issued after payment has been collected as proof of settlement.
What is the difference between an invoice and a quote or work order?
A quote or estimate proposes expected pricing before a job starts; a work order authorizes and schedules the operational scope of work; an invoice bills the customer for payment once the work is performed.
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