When you go freelance or become a sole trader, you want to do your job, not bookkeeping. Yet invoicing starts with your very first client: quote, invoice, required details, numbering, tracking payments. The good news is that the basics fit on one page. Here are the essentials of invoicing as a freelancer or sole trader, without jargon, and how to stop losing evenings to it.
The quote: before you start
A quote is not always mandatory, but it is strongly recommended for anything beyond a small job. It sets the price, scope, timing and payment terms. Once signed, it protects you if there is a disagreement. How to write one is covered in our guide to writing a quote.
The invoice: for every sale
Issue an invoice for every sale. Business clients need it for their own books, and it is your record of income. A proper invoice usually includes:
- your name or business name, address and any registration number;
- the client's name and address;
- the date and a unique invoice number;
- a clear description of the work, quantities and prices;
- the total, with tax if you charge it;
- the due date and how to pay.
The full list is in our guide to what to put on an invoice.
Tax: know your status
Many freelancers start below the threshold for VAT or sales tax registration and do not charge it. In that case, do not add tax to your invoices, and follow your country's rules on any wording to include. Once you cross the threshold, you must register and charge tax. Keep an eye on your turnover during the year, and check the rules with your tax office or an accountant.
Numbering: continuous, no gaps
Each invoice gets a unique number in a continuous sequence: no gaps, no duplicates. A cancelled invoice is not deleted; you issue a credit note instead. Software handles the sequence for you.
Tracking payments
Knowing exactly which invoices are paid, and when, lets you chase late ones in time and understand your real income. A spreadsheet works at first; software does it automatically, recording the date and method of each payment, including part-payments. For chasing, see our guide to chasing late payers.
It is strongly recommended to use a separate bank account for your business, and some countries require it above a certain turnover. Your business income is then easy to find.
Payment terms
Say clearly when you expect to be paid: on receipt, within 14 days, within 30 days. Short, clear terms and a payment link get you paid faster. See our article on invoice payment terms.
Keeping records
Keep your invoices, paper or electronic, for as long as your local rules require. Online software stores them automatically, available at any time.
What software saves you
| Task | By hand | With software |
|---|---|---|
| Required details | Checked every time | Automatic |
| Numbering | Risk of gaps or duplicates | Continuous |
| Quote to invoice | Retyping | One click |
| Payments | Separate spreadsheet | Tracked on each invoice |
| Reminders | When you remember | Scheduled |
| Records | Folders and files | Stored online |
Getting started
For a new freelancer, a free plan usually covers the basics comfortably. As work grows, paid features such as automatic reminders, online payments and recurring invoices save hours each month. Plans are on the pricing page.