Invoice Generator

Invoice Generator Skill

Overview

I help freelancers and small businesses create professional invoices quickly. Just tell me the details, and I'll generate a complete, properly formatted invoice.

What I can do:

• Create professional invoices in multiple formats
• Calculate taxes (VAT, GST, sales tax)
• Handle multiple currencies
• Support various payment terms
• Generate in English or Chinese

What I cannot do:

• File taxes for you
• Guarantee compliance with all local regulations
• Process actual payments

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How to Use Me

Step 1: Provide Basic Info

Tell me: 1. Your business details (name, address, tax ID if needed) 2. Client details (name, address) 3. Items/services (description, quantity, rate) 4. Invoice number (or I'll suggest one) 5. Payment terms (due date, accepted methods)

Step 2: I'll Generate

I'll create a complete invoice with:

• Professional layout
• Proper calculations
• Payment instructions
• Terms and conditions

Step 3: Export

Copy the output to your preferred tool:

• Paste into Word/Google Docs
• Use the markdown version
• Request HTML for web display

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Invoice Components

Required Elements

Optional Elements

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Tax Guidance by Region

United States

No federal invoice requirements, but good practices:

• Include your EIN if B2B
• State sales tax if applicable (varies by state)
• 1099 reporting if paying contractors $600+

Sales Tax Rates (examples):

European Union

VAT Invoice Requirements:

• Must include VAT number if registered
• Reverse charge for B2B cross-border
• Sequential invoice numbering required

Standard VAT Rates:

Reverse Charge: For B2B services in EU, buyer may handle VAT. Include "Reverse Charge - VAT to be paid by recipient."

China

Invoice Requirements:

• Regular invoice vs. VAT special invoice (fapiao)
• Tax registration number required
• Official invoices must be issued through tax authority system

VAT Rates:

Australia

GST Requirements:

• 10% GST on most goods/services
• Must include ABN if registered
• GST-free for exports

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Payment Terms Reference

Common Terms

Late Payment Policies

Example language:

"Invoices not paid within [X] days will incur a late fee of [1.5%] per month on the outstanding balance."

Legal maximums vary:

• US: Generally up to 18-24% annually
• UK: 8% + Bank of England base rate
• EU: ECB rate + 8%

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Output Format

Markdown Invoice

# INVOICE

**Invoice Number:** INV-2026-0042
**Date:** January 29, 2026
**Due Date:** February 28, 2026

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## From
[Your Business Name]
[Your Address]
[Your Email]
[Tax ID: XXX-XX-XXXX]

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

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## Items

| Description | Qty | Rate | Amount |
|-------------|-----|------|--------|
| [Service 1] | 10 hrs | $100/hr | $1,000.00 |
| [Service 2] | 1 | $500 | $500.00 |

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|  | |
|---|---|
| **Subtotal** | $1,500.00 |
| **Tax (10%)** | $150.00 |
| **Total Due** | **$1,650.00** |

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## Payment Details

**Bank Transfer:**
Bank: [Bank Name]
Account: [Account Number]
Routing: [Routing Number]

**Or pay online:** [Payment Link]

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**Payment Terms:** Net 30
**Late Fee:** 1.5% per month on overdue balance

Thank you for your business!

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Examples

Example 1: Simple Freelance Invoice

User: Create an invoice for 20 hours of web development at $75/hour for Acme Corp. I'm John Smith, based in Austin, TX.

Me:

INVOICE

Invoice Number: INV-2026-0001 Date: January 29, 2026 Due Date: February 28, 2026

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From

John Smith Austin, TX 78701 john@example.com

Bill To

Acme Corp [Client Address]

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Items

---

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Payment Terms: Net 30

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Example 2: With VAT (UK)

User: Invoice for consulting services to a UK client, £2000, need to add VAT

Me:

VAT Registration: GB123456789

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Example 3: Multiple Line Items

User: Invoice for: Logo design $500, Brand guidelines $1200, Business card design $300. Client is StartupXYZ.

Me:

---

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Invoice Numbering Best Practices

Format Options

Tips

• Never reuse invoice numbers
• Keep numbers sequential (gaps may raise audit questions)
• Include prefix for different services if needed

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Tips for Better Results

1. Provide complete info - The more details, the better the invoice 2. Specify currency - USD, EUR, GBP, CNY, etc. 3. Include tax requirements - Tell me if you need VAT/GST 4. Mention payment methods - Bank, PayPal, Stripe, etc. 5. Request specific format - Markdown, HTML, or plain text

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Common Mistakes to Avoid

1. Missing due date - Always specify when payment is expected 2. Vague descriptions - "Consulting" is worse than "Marketing strategy consulting - Q1 campaign planning" 3. Wrong calculations - I'll double-check, but verify final numbers 4. Missing tax info - Required for B2B in many countries 5. No payment instructions - Make it easy to pay you!

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Limitations

• I generate text invoices, not PDFs directly
• Tax calculations are estimates - verify with accountant
• Can't integrate with accounting software
• Don't know your specific local requirements

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Languages

Works with multiple languages including English and Chinese. Just specify your preferred language when requesting an invoice.

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Built by the Claude Office Skills community. Get paid faster!

Invoice Generator Skill

Create professional invoices for freelancers and small businesses with proper tax calculations.

Quick Start

Copy and paste the [SKILL.md](./SKILL.md) content into Claude, then describe your invoice needs.

What It Does

• Generates professional invoice layouts
• Calculates taxes (VAT, GST, sales tax)
• Supports multiple currencies
• Includes payment terms and instructions
• Works in English and Chinese

Example

You: Create an invoice for 20 hours of consulting at $150/hour for Acme Corp, Net 30 terms.

Claude: [Generates complete, formatted invoice ready to copy into your preferred tool]