How to Create an Invoice for Freelance Work: What to Include

How do you create an invoice as a freelancer?

Write your details and the client's, add a unique invoice number and date, list each service with its price, show the total and any tax, then state the payment terms and how to pay. Save a copy and send it as a PDF.

Steps

1. Add your name or business name, address and contact details
2. Add the client's name and billing address
3. Give the invoice a unique number and a date
4. List each service, quantity and price
5. Show subtotal, tax if applicable, and the total
6. State the due date and payment methods

The order matters less than the content. Whether you use a word processor, a spreadsheet or invoicing software, the same fields should appear every time. Clients process invoices faster when they can find the amount, the due date and the payment details at a glance.

Send the invoice as soon as the work is delivered or at the milestone you agreed. Waiting weeks makes it harder for both sides to remember the scope. This article is general information, not legal or tax advice, so check the invoice rules that apply where you and your client are based.

What details must an invoice include?

At minimum: who is billing whom, a unique number, the date, a description of the work, the amount due and the payment terms. Some countries also require a tax or VAT number, so check local rules.

Descriptions should be specific enough that the client's accounts team can match them to an order. Write 'Website redesign, 12 hours, March' instead of 'Services'. If you charge by project, name the project and the agreed milestone.

Tax rules vary widely. In some places freelancers must show a tax registration number or add VAT, in others not. If you are unsure, ask a local accountant or your tax authority. Keep every invoice you send, as you will need the full set when you file your own records.

How should you number your invoices?

Use a simple sequence that never repeats, such as 0001, 0002, 0003, or a year prefix like 2026-001. Do not skip or reuse numbers. A consistent sequence makes it easy to find any invoice and to see what is paid.

If you work with several clients, a single running sequence is usually the least confusing. Some freelancers add a client code, but that only helps once you have many clients. Choose one scheme and keep it.

A tool can number invoices automatically, which removes a small source of errors. Daily Invoice Maker is desktop invoicing and bookkeeping software for service businesses and freelancers who want to work on their own computer. It is sold as a one-time licence, $59.99 for a year or $149.95 lifetime, with a 60-day refund via ClickBank.

What payment terms should you put on an invoice?

State a clear due date, such as 14 or 30 days from the invoice date, the accepted payment methods and your bank or payment details. Mention any late-payment terms you and the client agreed in advance.

Agree on terms before you start work, ideally in a short written quote or contract, then repeat them on the invoice. Surprises about timing are the most common cause of late payment. A due date is more precise than 'on receipt'.

For quoting and invoicing in one flow, FieldQuote AI is an AI quoting and invoicing web app for contractors at $19.99 a month on a single plan. It suits solo contractors who want an AI-assisted quote and invoice draft and are happy to test a free start before paying. Always read the order terms before you subscribe.

Is a spreadsheet or an app better for invoicing?

A spreadsheet template is enough for a handful of invoices a month. An app or invoicing program helps when you want automatic numbering, client lists, reports and a record of what is paid and unpaid.

If you invoice rarely, a template keeps costs at nothing extra. The 1000+ Excel Templates Bundle includes editable spreadsheets for accounting, budgets and more, priced at USD 43.30 with a 60-day refund on the order form, so it can serve as a starting library for several admin jobs.

If you also run a small physical or market business, Yourcountant Plus records sales, debts and stock on a phone, with a free plan and a USD 149 yearly Plus plan carrying a 60-day refund promise from the seller. Browse the wider software and technology category for comparable tools.

What if the client does not pay on time?

Send a short, polite reminder on or just after the due date, quoting the invoice number and amount. If there is no reply, follow up again, then escalate according to your contract. Keep every message.

Many late payments are simple oversights, so start friendly. Attach the invoice again, repeat the due date and ask whether anything is blocking payment. A clear subject line with the invoice number saves the client time.

For future work, consider deposits, milestone payments or shorter terms. Keep your own side tidy too: if you buy invoicing software, learn how the refund and cancellation steps work through our guide on reading a Digistore24 order form.

Frequently asked questions

Sources

Platform rules quoted in this article come from these official pages, read on 15 October 2026. Product details come from our own reviews, each dated on its page.

• FTC Consumer Advice
• Digistore24: For Buyers