How to Invoice as a Sole Trader: What to Include (With Template)

The Accounted Business Team·1 April 2026·6 min read

Getting Paid Properly Starts With a Proper Invoice

Nobody starts a business because they're passionate about invoicing. But a well-structured invoice is the difference between getting paid promptly and chasing money for weeks. When you're a sole trader, every late payment hits your personal bank account.

The good news? Sole trader invoices are straightforward. There's no VAT to worry about (unless you're registered for VAT), and the legal requirements are minimal. But "minimal" doesn't mean "optional."

Let's go through exactly what needs to be on every invoice you send.

What Must Be on a Sole Trader Invoice

HMRC doesn't prescribe a specific invoice format for sole traders, but there are clear expectations. Here's every element you should include, and why.

1. Your Name and Business Name

Your invoice must show your legal name — your personal name, since sole traders aren't separate legal entities. If you trade under a different name, include both:

BrightSpace Cleaning Sarah Johnson (Sole Trader)

Still choosing a name? Our business name ideas guide has 50 suggestions.

2. Your Business Address

Include the address where your business operates from. If you work from home, that's your home address. This is a legal requirement under the Business Names Act 1985 for anyone trading under a name that isn't their own.

3. Your Customer's Name and Address

Always address the invoice to the right person or company. If you're invoicing a business, address it to the person who handles payments, not just the company name. This reduces the chance of your invoice being ignored.

4. A Unique Invoice Number

Every invoice needs a unique, sequential number. This isn't just good practice — HMRC expects it for your digital records.

You can use any system you like:

Simple sequential: 001, 002, 003
Year-prefixed: 2026-001, 2026-002
Client-prefixed: ABC-001, ABC-002

The key is that numbers must be sequential with no gaps. If HMRC sees invoice 001, 002, 005, they'll want to know what happened to 003 and 004.

5. Invoice Date and Due Date

Include the date you're issuing the invoice and the date payment is due. Standard payment terms in the UK are:

Due on receipt — You want paying now. Common for small jobs.
Net 14 — Payment due within 14 days. Good middle ground.
Net 30 — Payment due within 30 days. Standard for B2B work.

Be explicit. Don't just write "payment terms: 30 days" — write "Due date: 1 May 2026." Remove any ambiguity.

6. Description of Goods or Services

Describe what you're invoicing for clearly. Vague descriptions like "services rendered" are a red flag for HMRC and annoying for customers.

Good examples:

"Website design — 5-page business site, 2 rounds of revisions (Jan 2026)"
"End-of-tenancy deep clean — 3-bed flat, 42 Maple Road, Bristol (15 March 2026)"
"Electrical rewiring — kitchen and utility room, parts and labour (ref: Q-2026-018)"

7. The Amount (and VAT, If Applicable)

Show the total amount due clearly. If you're billing for multiple items, list each one with its individual price and then show the total.

If you're NOT VAT-registered: Simply show the total. You must not show VAT as a separate line — charging VAT when you're not registered is illegal. Many sole traders add a note: "Not VAT registered — no VAT charged."

If you ARE VAT-registered: You need to show the net amount, the VAT amount, the VAT rate, your VAT registration number, and the gross total. See our VAT MTD registration guide for more on this.

8. Payment Details

Tell people exactly how to pay you. Include:

Bank name
Account name (must match your business/personal name)
Sort code
Account number

If you accept other payment methods — PayPal, Stripe, bank transfer link — include those too. The fewer barriers to payment, the faster you get paid.

9. Your UTR Number (Optional but Professional)

Your Unique Taxpayer Reference isn't legally required on invoices, but including it adds credibility — especially if you're invoicing other businesses or working under CIS. It shows you're properly registered and above board.

Some contractors and agencies won't pay you without it, so it's worth including as standard.

A Simple Sole Trader Invoice Template

Here's a clean template you can adapt:

[YOUR BUSINESS NAME]
[Your Full Name] (Sole Trader)
[Your Address]
[Your Email]
[Your Phone Number]

INVOICE

Invoice No: [INV-001]
Date: [1 April 2026]
Due Date: [15 April 2026]

Bill To:
[Customer Name]
[Customer Address]

Description                          Qty    Unit Price    Total
-----------------------------------------------------------
[Service/product description]         1     £500.00      £500.00
[Additional line item]                2     £50.00       £100.00

                                          Subtotal:     £600.00
                              Not VAT registered
                                             TOTAL:     £600.00

Payment Details:
Bank: [Your Bank]
Account Name: [Your Name]
Sort Code: [00-00-00]
Account Number: [00000000]

UTR: [0000000000]

Payment Terms: Due within 14 days of invoice date.

Chasing Late Payments (Without Burning Bridges)

Late payment is the plague of UK sole traders. The average small business is owed over £8,500 in overdue invoices at any given time. For a sole trader, that's devastating to your cash flow. Here's a sensible escalation process:

Day 1 Past Due: Friendly Reminder

Send a brief, polite email or message. Something like: "Hi [Name], just a quick note that invoice [number] was due on [date]. Could you let me know when I can expect payment? Happy to resend the invoice if needed."

Most late payments are oversight, not malice. A gentle nudge usually does the job.

Day 7 Past Due: Firm Follow-Up

If you've heard nothing, follow up more directly. Attach the invoice again, reference the original due date, and ask for a specific payment date.

Day 14 Past Due: Final Notice

At this point, you're within your rights to add late payment interest. Under the Late Payment of Commercial Debts Act, you can charge 8% plus the Bank of England base rate on overdue B2B invoices. You can also add a fixed compensation fee (£40 for debts under £1,000).

Mention this in your final notice. You don't have to be aggressive — just factual.

Day 30+ Past Due: Escalate

If repeated attempts fail, your options include a formal letter before action, mediation, or a claim through the Small Claims Court (for debts under £10,000). The Small Claims process is designed for exactly this kind of dispute and you don't need a solicitor.

How Accounted Handles Invoicing for You

Creating invoices in Word or Excel works fine with three clients. With thirty, it's a time sink.

Accounted lets you create professional invoices in seconds. Every invoice is automatically numbered, tracked, and matched against your bank transactions when payment arrives. You see at a glance who's paid and who hasn't.

Penny, our AI bookkeeper, keeps invoicing and bookkeeping connected. When payment lands, Penny matches it to the outstanding invoice and categorises it automatically. And because everything feeds into your tax calculations and MTD submissions, your invoices keep you compliant too.

Ready to simplify your bookkeeping? Try Accounted free for 14 days →

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