Topic hub
Invoicing
Invoicing is one of the most underestimated parts of running a small business. A poorly written invoice can stall payment for weeks, trigger disputes, or quietly lose you margin to fees and tax mistakes. This hub covers what to include, how to set due dates, and how to follow up without damaging the relationship.
Start with the tool
Run this in five minutes to get a concrete number or draft.
Read the guides
Plain-English explainers for the questions that come up most often in invoicing.
What makes an invoice look professional
The visual and structural details that signal credibility — and the small mistakes that quietly mark an invoice as amateur.
How to choose payment terms for invoices
How to pick payment terms that protect cashflow without scaring off serious customers — and how to evolve them over time.
Invoice due date: what it actually means
The difference between 'Net 30' and 'due in 30 days', and how due dates affect your right to chase payment.
How to create a professional invoice
A practical, plain-English walkthrough of every field a small business invoice should contain — and why each one matters.
Key terms
The vocabulary you will run into in tools, contracts, and statements.
Templates and examples
Copy-paste examples you can adapt to your business.
Editorial insights
Common mistakes and the reasoning behind the numbers.
Common questions
- What must a professional invoice include?
- Your business name and contact details, the customer's, a unique invoice number, issue and due dates, an itemised description, applicable tax, and clear payment instructions. See the professional invoice guide for the full checklist.
- What payment terms should I use?
- Net 14 is a sensible default for most B2B work, Net 7 for new customers, and due-on-receipt for B2C. Whatever you choose, state it on the invoice and in the original quote so it never feels like a surprise.
- How do I chase a late invoice without being aggressive?
- Use a calm, predictable cadence: a friendly reminder on day 1 overdue, a firm reminder around day 7, and a final notice around day 14 before switching channels. The Late Payment Recovery tool generates the drafts.