HTML Invoice Templates: Free PDF Generator & Templates
Create professional HTML invoice templates that convert perfectly to PDF. Use our free invoice PDF generator below or choose from 5 customizable templates for your business needs.
All templates are production-ready, support dynamic data injection with Nunjucks templating, and are optimized for PDF conversion. Perfect for freelancers, SaaS companies, and businesses of all sizes.
What is an Invoice and Why Use HTML Templates?
An invoice is a commercial document that itemizes and records a transaction between a buyer and seller. For businesses, creating professional invoices is essential for maintaining cash flow and legal compliance. HTML invoice templates offer the perfect balance of flexibility and professionalism.
Unlike traditional invoice software, HTML-based invoices give you complete control over design and data. You can easily integrate them into your existing systems, automate invoice generation through APIs, and ensure consistent branding across all your business documents. Our invoice maker supports dynamic data injection, making it ideal for automated billing systems.
Free Invoice PDF Generator
Generate professional invoices instantly. No registration required. Add your details and download as PDF.
HTML Invoice Templates
Browse our collection of professional invoice templates. Each template includes live preview and can be customized with your data.
Template 1: Minimal Professional Invoice
A clean, minimalist invoice template perfect for freelancers and consultants. Features a simple two-column layout with clear typography and subtle borders.
Features
Clean, distraction-free design
Automatic subtotal and tax calculations
Professional typography with system fonts
Responsive layout that works on all page sizes
Best For
Freelancers, consultants, and small service businesses who want a simple, professional invoice without unnecessary visual elements.
Template 2: Modern Gradient Invoice
A contemporary invoice with a striking gradient header and modern design elements. Perfect for creative agencies and tech startups who want to make a visual impact.
Features
Eye-catching gradient header
Custom brand colors support
Rounded corners and modern spacing
Professional table styling
Best For
Creative agencies, tech startups, and design studios who want their invoices to reflect their modern brand identity.
Template 3: Classic Business Invoice
A traditional business invoice with formal styling and comprehensive information display. Includes company logo placement, detailed contact information, and payment terms.
Features
Logo placement area
Detailed company and client information
Payment terms and due date
Bank details section
Best For
Established businesses, B2B companies, and enterprises that need formal, comprehensive invoicing with all legal details.
Template 4: SaaS Subscription Invoice
Designed specifically for SaaS and subscription businesses. Includes recurring billing details, subscription period, and payment method information.
Features
Subscription period display
Recurring billing information
Payment method details
Next billing date
Best For
SaaS companies, subscription services, and membership-based businesses that need to show recurring billing details.
Template 5: Freelancer Time-Based Invoice
Perfect for freelancers and consultants who bill by the hour. Includes detailed time tracking, hourly rates, and project breakdown.
Features
Time tracking display
Hourly rate breakdown
Project/task categorization
Total hours summary
Best For
Freelancers, consultants, and agencies that bill clients based on time spent on projects or tasks.
Invoice Template Comparison
Choose the right invoice template for your business needs. Compare features, design styles, and ideal use cases:
Template
Design Style
Best For
Key Features
Minimal Professional
Clean & Simple
Freelancers, Consultants
Auto calculations, System fonts
Modern Gradient
Contemporary
Creative Agencies, Startups
Gradient header, Custom colors
Classic Business
Traditional & Formal
B2B, Enterprises
Logo placement, Bank details
SaaS Subscription
Modern & Detailed
SaaS, Subscriptions
Recurring billing, Next payment
Freelancer Time-Based
Detailed & Structured
Hourly Billing
Time tracking, Hourly rates
How to Use These Invoice Templates
All invoice templates are built with HTML and CSS, making them easy to customize and integrate into any application. You can use them with our PDF API to automatically generate invoice PDFs, or integrate them directly into your invoicing workflow.
Key Benefits:
No coding required: Use our free online generator above
Fully customizable: Modify HTML/CSS to match your brand
API integration: Automate invoice generation via API
Professional design: Print-ready and PDF-optimized
Dynamic data: Support for templating engines like Nunjucks
Automation Options:
Automate your invoice generation workflow with these integration options:
n8n Native Module: Use our official n8n node to generate invoices directly in your automation workflows
Creating professional invoices requires more than just good design. Follow these best practices to ensure your invoices are legally compliant and professional:
Essential Invoice Elements
Unique Invoice Number: Sequential numbering system (e.g., INV-2025-001)
Issue Date & Due Date: Clear payment terms and deadlines
Business Information: Your company name, address, and tax ID
Client Information: Customer name, address, and contact details
Itemized Services: Detailed description, quantity, and pricing
Tax Breakdown: VAT/Sales tax clearly displayed
Payment Terms: Accepted payment methods and bank details
Total Amount Due: Prominently displayed final amount
Invoice Numbering System
Use a consistent invoice numbering format that includes the year and sequential number. This helps with organization and is often required for tax purposes. Example formats: INV-2025-001, 2025-INV-0001, or simply sequential numbers like 10001.
Tax Compliance
Depending on your location, you may need to include specific tax information. EU businesses must include VAT numbers, while US businesses should display sales tax where applicable. Our invoice templates support all major tax formats and can be customized for your jurisdiction.
Frequently Asked Questions
How do I create an invoice PDF?
Use our free invoice PDF generator above. Simply fill in your business details, add line items, and click "Generate PDF". No registration or software installation required. You can also use our HTML templates with any PDF conversion tool or our API for automated generation.
Are these invoice templates free to use?
Yes! All our HTML invoice templates are completely free for commercial and personal use. You can download, modify, and use them in your projects without any licensing fees. The online invoice maker is also free with no registration required.
Can I customize the invoice templates?
Absolutely! All templates are built with standard HTML and CSS, making them easy to customize. You can change colors, fonts, layouts, and add your company logo. For dynamic data, use our Nunjucks templating support or integrate with your own templating engine.
What's the difference between an invoice and a receipt?
An invoice is a request for payment sent before or at the time of service, while a receipt is proof of payment issued after payment is received. Invoices include payment terms and due dates, whereas receipts confirm that payment has been completed.
How do I automate invoice generation?
You can automate invoice PDF generation in three ways:
Native n8n Module: Use our official n8n node for seamless integration in your workflows
Native Make.com Module: Install our Make.com app for drag-and-drop automation
HTTP API: Send invoice data via HTTP request to our API and receive a PDF back instantly - works with any platform
All methods support dynamic data injection and custom HTML templates. Check our n8n integration guide or API documentation for step-by-step instructions.
Which invoice template should I choose?
Choose based on your business type: Freelancers should use the Minimal or Time-Based templates, creative agencies benefit from the Modern Gradient design, established businesses prefer the Classic template, and SaaS companies should use the Subscription template. See our comparison table above for detailed guidance.
Do the templates work with accounting software?
Yes! Our invoice templates can be integrated with popular accounting software like QuickBooks, Xero, and FreshBooks through our API. You can also export data in standard formats (JSON, CSV) that most accounting systems accept.
Can I add my company logo to the invoices?
Yes! All templates support logo placement. Simply provide your logo URL in the template data, and it will be automatically included in the generated PDF. The Classic Business and Modern Gradient templates have dedicated logo areas with optimal sizing.
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