Invoice Generator

Generate professional invoices from project data — line items, tax calculation, payment terms, and formatted output. Supports freelance, agency, and SaaS billing. Tracks outstanding invoices and sends payment reminders.

Create professional invoices from project data with automatic calculation, payment terms, and tracking.

What It Does

1. Invoice Creation — Generate formatted invoices from simple inputs
2. Auto-Calculation — Line items, subtotals, tax, discounts, totals
3. Payment Terms — Net 15/30/60, late fees, early payment discounts
4. Client Management — Remember client details for repeat invoicing
5. Outstanding Tracking — Track unpaid invoices, generate reminders
6. Multi-Currency — USD, EUR, GBP, and more

Usage

Create an Invoice

text

Create an invoice:

From: [Your business name]
To: [Client name, address]
Invoice #: [Number or auto-generate]
Date: [Today or specific date]
Due: [Net 30 / specific date]

Line items:
1. [Service] — [quantity] × $[rate] 
2. [Service] — [quantity] × $[rate]
3. [Service] — [quantity] × $[rate]

Tax: [rate]% or [none]
Discount: [amount or percentage] or [none]
Currency: USD
Payment method: [Bank transfer / PayPal / Stripe link]
Notes: [Any additional notes]

Quick Invoice from Project

text

Invoice for this project:

Client: [Name]
Project: [Description]
Hours worked: [X hours]
Rate: $[X]/hour
Expenses: [List any]
Payment: Net 30

Generate the invoice with a professional layout.

Monthly Recurring Invoice

text

Generate this month's recurring invoices:

Client A: $2,500/mo retainer (content services)
Client B: $1,500/mo retainer (social media management)
Client C: $500/mo (bot hosting + maintenance)

Include: invoice numbers (sequential), dates, payment terms, totals

Outstanding Invoice Report

text

Here are my issued invoices this month:

INV-001: Client A, $2,500, issued April 1, due April 30
INV-002: Client B, $1,500, issued April 1, due April 15
INV-003: Client C, $800, issued April 5, due May 5

Which are overdue? Draft payment reminder emails for any past due.

Output Format

text

═══════════════════════════════════════════
                  INVOICE
═══════════════════════════════════════════

From: [Your Business]             Invoice #: [INV-XXX]
[Your Address]                    Date: [YYYY-MM-DD]
[Your Email]                      Due: [YYYY-MM-DD]
                                  Terms: [Net 30]

Bill To:
[Client Name]
[Client Address]
[Client Email]

───────────────────────────────────────────
Description              Qty    Rate    Amount
───────────────────────────────────────────
[Service 1]               [X]   $[X]    $[X.XX]
[Service 2]               [X]   $[X]    $[X.XX]
[Service 3]               [X]   $[X]    $[X.XX]
───────────────────────────────────────────
                          Subtotal:     $[X.XX]
                          Tax ([X]%):   $[X.XX]
                          Discount:    -$[X.XX]
                          ─────────────────
                          TOTAL:        $[X.XX]
═══════════════════════════════════════════

Payment Methods:
[Bank details / PayPal / Stripe link]

Notes:
[Additional terms or thank you message]

Late Payment: [X]% monthly interest after due date

Best Practices

• Keep invoice numbers sequential (INV-001, INV-002...)
• Include clear payment instructions
• Send invoices within 24 hours of project completion
• Follow up on overdue invoices at 1, 7, and 14 days past due
• Pair with a cost tracking system for profit calculations

References

• references/payment-terms.md — Standard payment terms explained
• references/reminder-templates.md — Follow-up email templates for overdue invoices