How to Invoice for the First Time

Before you create your first invoice, gather a few essential pieces of information. Having these ready will make the process quick and stress-free.

First, you need your business details: your full name (or trading name if you use one), your address, email address, and phone number. If you've registered as a limited company, have your Companies House registration number to hand.

Second, collect your client's details. At minimum you need their full name or company name and their address. If they've given you a purchase order (PO) number, include that too — larger companies often require it before they can process payment.

Third, confirm your payment details. For UK bank transfers, you'll need your bank name, sort code, account number, and account holder name. If you accept PayPal or Stripe, have those details ready as well.

Finally, decide on your payment terms. Common choices are "Due on Receipt", "Net 14" (14 days), or "Net 30" (30 days). If you haven't discussed this with your client yet, now is the time. Setting expectations early prevents awkward conversations later.

You don't need to be VAT-registered to invoice. Most new freelancers aren't, and that's perfectly fine. Just don't include VAT on your invoice if you're not registered — it's actually illegal to charge VAT without a valid registration number.

You have several options for creating your first invoice, ranging from completely free to paid tools with extra features. The best choice depends on how many invoices you expect to send and how professional you want to look.

• Word processor or spreadsheet — Google Docs, Word, or Excel work fine for a one-off invoice. The downside is you'll need to manually set up the layout and update it each time.
• Free invoice template — Download a pre-formatted template and fill in your details. This saves time on layout but still requires manual work for numbering and tracking.
• Invoicing software — Tools like OwnedWork generate professional invoices instantly, track payment status, and handle invoice numbering automatically. This is the best option if you plan to freelance regularly.

Whichever format you choose, always send your invoice as a PDF. PDFs preserve your formatting across all devices and can't be accidentally edited by the recipient. Word documents and Google Docs links can look different on different screens and risk being altered.

If you're building a freelance career rather than doing a one-off job, investing in proper invoicing software from day one saves significant time. You'll spend less time on admin and more time on billable work, which is where the money actually comes from.

Follow these steps to create a complete, professional invoice. For a deeper dive into each field, see our full guide on how to write an invoice.

1. Add your details at the top — Your name or business name, address, email, and phone number. Include your logo if you have one.
2. Add the client's details — Their name, company name, and address. Double-check spelling — clients notice.
3. Set your invoice number — Your first invoice can simply be #001 or #INV-001. The key is that every subsequent invoice has a higher number. See invoice numbering best practices.
4. Add dates — The invoice date (today) and the due date based on your agreed payment terms.
5. Describe the work — List each service as a separate line item with a clear description, quantity, rate, and total. "Logo design — 1 concept with 2 rounds of revisions" is better than "Design work".
6. Add the total — Sum your line items. If you're not VAT-registered, this is simply the total amount due. Make it bold and prominent.
7. Include payment instructions — Your bank details and any reference the client should use when paying (e.g. the invoice number).
8. Review and send — Check for typos, save as PDF, and send via email with a clear subject line like "Invoice #001 from [Your Name]".

Keep a copy of every invoice you send. HMRC requires you to retain records for at least five years after the 31 January Self Assessment deadline for the relevant tax year.

If you feel nervous about sending your first invoice, you're not alone. Here are the most common worries new freelancers have — and why you shouldn't let them hold you back.

"What if I'm charging too much?" — If the client agreed to your rate before the work started, the price is already settled. Your invoice is simply a record of that agreement. If you're unsure about your rates in general, use our freelance rate calculator to benchmark.

"What if I get the format wrong?" — There is no single legally mandated invoice format in the UK (unless you're issuing VAT invoices, which have specific requirements). As long as you include the essential information — your details, client details, description of work, amount, and payment instructions — it's valid.

"What if the client doesn't pay?" — Having a proper invoice actually helps if this happens. It creates a documented paper trail. Agree payment terms upfront, send the invoice promptly, and follow up politely if payment is late. See our guide on chasing late payments.

"Do I need to register anything?" — If you're self-employed in the UK, you need to register with HMRC for Self Assessment. You don't need to register separately to send invoices. You can send your first invoice before your registration is even complete.

The biggest mistake new freelancers make isn't formatting errors or wrong numbers — it's delaying the invoice. Send it promptly. The sooner you invoice, the sooner you get paid.

You've hit send — now what? Here's what to expect and how to handle each scenario.

The ideal outcome: Your client receives the invoice, processes it through their accounts system, and pays you within the agreed timeframe. For smaller clients this might happen within days. Larger companies often have fixed payment runs (e.g. the last Friday of the month), so it may take longer even if everything is approved quickly.

If you hear nothing: Don't panic. Most clients don't send a confirmation when they receive an invoice. If payment hasn't arrived by the due date, send a polite follow-up email. Something like: "Hi [Name], just a quick note to check you received invoice #001 sent on [date]. The total of £[amount] was due on [date]. Happy to resend if needed." Our guide on chasing late payments has more templates.

If the client queries something: They might ask for a correction, a purchase order number to be added, or more detail on a line item. This is normal — don't take it personally. Make the change, reissue the invoice (keeping the same invoice number or issuing a revised version), and send it back promptly.

Record keeping: Once you've been paid, mark the invoice as paid in your records. If you're using invoicing software, this is usually a single click. If you're tracking manually, update your spreadsheet. You'll thank yourself at tax return time.

Getting your first invoice paid is a milestone. Once you've done it, the process becomes routine. Set up a system early and you'll spend less time on admin as your business grows.