About Invoice.wiki - Free Invoice Generator for Freelancers & Businesses

Invoice.wiki is a free and easy-to-use online invoice generator built for freelancers, small businesses, contractors, and entrepreneurs. Create and download professional invoices as PDFs with full privacy — no registration needed. Explore our comprehensive invoice generator now.

🎨 New Features by Popular Demand!

We've listened to our community and added exciting new customization options to make your invoices even more professional and accessible:

  • 🎨 Custom Colors: Choose from 10 beautiful accent colors (Blue, Green, Red, Purple, Orange, Pink, Teal, Yellow, Slate, Black) to match your brand identity.
  • 🌍 Multiple Languages: Generate invoices in 6 languages - English, German (Deutsch), Czech (Čeština), Polish (Polski), Slovak (Slovenčina), and Ukrainian (Українська) to serve international clients.

Try these new features and create invoices that truly represent your business!

How We Prioritize Your Privacy

We believe professional invoicing should be accessible to everyone. Our online invoice maker simplifies the process while maintaining the highest standards of data protection and user privacy. Your invoice information stays entirely on your device, processed locally in your browser for maximum data security. Learn more about our privacy protection measures.

What is an Invoice?

An invoice is an official document used to request payment for goods or services. It outlines what was sold, who sold it, who bought it, the agreed price, tax amounts, and payment terms. Invoices serve as critical financial and legal records.

History and Purpose

Invoices have been part of commerce since early accounting systems were developed. Today, digital invoicing has become standard across industries and borders, supporting smooth trade, clear tax records, and timely payments.

Key Components of an Invoice

Seller Information

  • Company Name – Official business name.
  • Business Address – Registered address of the seller.
  • Company ID – Official registration number.
  • VAT Number – Tax identification number (if applicable).
  • Contact Details – Email, phone number, and website.

Buyer Information

  • Client Name – Name of the person or business being billed.
  • Client Address – Delivery or legal address.
  • Company ID & VAT (if any) – Tax info of the buyer.
  • Contact – Client’s email or phone number.

Invoice Details

  • Invoice Number – Unique identifier for tracking.
  • Issue & Due Dates – When invoice was created and when payment is due.
  • Currency – Used for the transaction.
  • Reference – Optional PO or order numbers.

Payment Information

  • Accepted Methods – Bank transfer, card, PayPal, cash, etc.
  • Bank Details – Account number, IBAN, BIC/SWIFT.
  • Status – Paid or unpaid label.

Items and Totals

  • Service/Product – Name of what was sold.
  • Quantity & Unit Price – Per-item breakdown.
  • VAT – Percentage applied (if applicable).
  • Total – Final amount including tax.

Legal Relevance of Invoices

Invoices are official commercial records. They can be used for tax reporting, financial accounting, and legal protection. Depending on your country, invoicing may follow specific rules like VAT formatting in the EU or sales tax declarations in the US.

Common legal purposes of invoices include:

  • Verifying business transactions.
  • Filing tax returns and claiming deductions.
  • Documenting payment terms and amounts.
  • Providing evidence in disputes or audits.

Why Choose Invoice.wiki?

  • Free forever – No subscriptions, no trials, no fees.
  • Instant PDF invoices – Ready-to-download professional documents.
  • Browser-based – Use on any device without installing anything.
  • No login – Start creating invoices immediately.
  • Multi-currency & tax support – Ideal for international invoicing.
  • Secure & private – Your data never leaves your browser.

Professional Results Every Time

Our invoice generator creates clean, professional documents that reflect well on your business. Here's an example of what your invoices will look like:

Sample professional invoice generated by Invoice.wiki showing proper formatting, VAT calculations, and business details

What You Get:

  • Professional layout with clear structure
  • Automatic VAT calculations and totals
  • Complete business and client information
  • Payment terms and banking details
  • Print-ready formatting

Every invoice maintains this professional standard, ensuring your business makes a great impression with every client interaction.

Ready to Create Your First Invoice?

Join thousands of freelancers and small business owners who trust Invoice.wiki for their billing needs. Our free invoice generator helps you create professional invoices in minutes, not hours.

Whether you need to bill for consulting services, freelance work, or product sales, our platform handles VAT calculations, multiple currencies, and generates PDF invoices that look professional and meet international standards.

Start Creating Invoices →

Contact Us

Have questions, suggestions, or feedback? We’d love to hear from you.