Invoice templates use placeholder variables to insert dynamic invoice data. Common placeholders include: Placeholder Description Example Output {{invoice_number}} Invoice unique identifier INV-2026-001 {{invoice_date}} Date invoice was issued February 25, 2026 {{due_date}} Payment due date March 12, 2026 {{recipient_name}} Customer/recipient name John Smith {{company_name}} Recipient's company ABC Corporation {{billing_address}} Recipient's address 123 Main St, City, State 12345 {{subtotal}} Pre-tax total $1,500.00 {{tax_rate}} Tax percentage 10% {{tax_amount}} Calculated tax $150.00 {{total}} Final invoice total $1,650.00 {{amount_paid}} Sum of payments received $0.00 {{invoice_items}} Table of line items with quantities/prices Rendered as HTML table {{company_logo}} Business logo image