How to Create a Professional Invoice (What to Include)
An invoice is a request for payment, and it is also a legal and accounting record. A clear, complete invoice helps clients pay on time and makes your bookkeeping easier. This guide shows what to include and how to avoid the most common mistakes.
What every invoice should include
| Element | Why it matters |
|---|---|
| The word "Invoice" and a unique number | Makes it easy to track and refer to |
| Invoice date and due date | Sets expectations for payment |
| Your name or business, address and contact details | Identifies who is being paid |
| Client name and address | Identifies who is being billed |
| Itemised description, quantity and price | Shows exactly what the charge covers |
| Subtotal, tax and total | Makes the amount due clear |
| Payment instructions and terms | Tells the client how and when to pay |
Tax numbers and wording requirements vary by country and business type, so check the rules that apply to you.
How to number invoices
Use a consistent sequence that never repeats, such as INV-2026-001, INV-2026-002. Some people include the year or a client code. Avoid skipping numbers without a reason, because gaps can raise questions during an audit.
Choose payment terms that suit you
| Terms | Often used for |
|---|---|
| Due on receipt | Small jobs and new clients |
| Net 7 or Net 15 | Quick turnarounds and small businesses |
| Net 30 | Common standard with larger companies |
| Deposit up front | Large projects, custom work or materials |
Write descriptions that prevent questions
Be specific about what was done. "Website design, 3 pages, 8 hours" prevents more disputes than "Services". If hours are billed, list the rate and hours. If expenses are included, itemise them separately.
Create one in minutes
With Figuro's Invoice Generator you enter your details, client details and line items, set the tax rate and notes, and download a PDF. Nothing is uploaded, and there is no watermark.
Getting paid faster
- Send the invoice as soon as the work is done.
- State accepted payment methods clearly.
- Politely follow up when a due date passes.
- Consider a late-fee policy that is stated in advance and allowed where you live.
Keep good records
Save a copy of each invoice, organised by year and client, and keep it as long as your local rules require. If you also pay for recurring tools and services, track them with the subscription cost guide so you know your true margins.
Types of invoices and related documents
| Document | Purpose | Notes |
|---|---|---|
| Quote or estimate | A price proposal before work begins | Not a request for payment |
| Proforma invoice | A preliminary invoice often used for customs or advance payment | Not a final tax invoice |
| Invoice | A request for payment for goods or services delivered | The main billing document |
| Recurring invoice | Issued on a schedule for ongoing services | Common for retainers and subscriptions |
| Credit note | Reduces or cancels part of an earlier invoice | Used for returns or corrections |
| Receipt | Confirms payment has been received | Issued after payment |
VAT, GST and sales tax on invoices
If you must charge value-added tax (VAT), goods and services tax (GST) or sales tax, show the tax rate and amount separately and include your tax registration number if required. Many countries have specific rules about invoice content, numbering and currency. Our article on VAT vs sales tax explains the difference, and the sales tax calculator helps check the amounts.
Deposits, milestones and late fees
- Deposit: request a percentage (often 25% to 50%) before starting large projects.
- Milestone billing: invoice at agreed stages such as design approved or delivery.
- Late fee: state any late payment charge in advance and make sure it is allowed where you work.
An example invoice layout
| Section | Example content |
|---|---|
| Header | Business name, logo, your contact details, tax ID |
| Invoice details | Invoice number INV-2026-014, issue date, due date |
| Bill to | Client company name and address |
| Line items | Website design, 12 hours × $60 = $720 |
| Totals | Subtotal $720, tax 8% $57.60, total $777.60 |
| Payment info | Bank transfer details or payment link, due in 15 days |
Record keeping and retention
Keep invoices issued and received, plus proof of payment. Retention periods vary by country and business type, commonly several years, so check your local tax authority guidance. Store invoices in a consistent folder structure and back them up.
E-invoicing and accounting software
Some countries require structured electronic invoices for businesses, and many accounting programs create, send and track invoices automatically. For occasional billing, a simple PDF invoice generator is often enough. As your business grows, consider accounting software that reconciles bank payments and reports taxes.
Professional tips
- Agree on scope, price and payment terms in writing before you start.
- Include a thank-you note and contact details for questions.
- Send reminders before and after the due date.
- Keep your branding consistent so invoices look trustworthy.
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Frequently asked questions
Do I need to charge tax on my invoice?
It depends on your location, your business status and what you sell. Ask a local accountant if you are unsure.
Can I send an invoice as a PDF?
Yes, a PDF is the most common format because it looks the same on every device.
What if a client does not pay?
Send a polite reminder, then follow your stated terms. Keep records of communication, and consider legal advice for large unpaid amounts.
What is the difference between an invoice and a receipt?
An invoice asks for payment; a receipt confirms that payment was received.
Do freelancers need to number their invoices?
Yes. Unique sequential numbers help with tracking and are required for tax purposes in many countries.
Can I invoice before the work is complete?
Yes, if you agreed on deposits or milestones in advance. State the terms clearly in your contract or proposal.
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