Invoicing basics
What goes on an invoice, how numbering works, and the documents people confuse with invoices.
12 Common Invoicing Mistakes That Delay Payment
The invoicing mistakes that most often delay payment, from missing PO numbers and vague descriptions to wrong tax and late sending, and how to fix each one.
How to Correct, Cancel or Void an Invoice
What to do when an invoice is wrong: correcting unsent invoices, credit notes for sent ones, cancelling duplicates, fixing tax errors, and what never to do.
Invoice Date vs Due Date (and Tax Point): What Each Means
The difference between an invoice date, a due date, a supply date and a tax point, which one starts the payment clock, and how to date invoices correctly.
Invoice vs Statement: What's the Difference?
An invoice bills one sale; a statement summarizes a customer's invoices and payments over a period. When to send statements and what they should show.
PO Number on an Invoice: What It Is and Where to Put It
What a PO number is, why corporate clients reject invoices without one, exactly where it goes on your invoice, and what to do if you don't have one.
What Is a Credit Note? When and How to Issue One
A credit note reduces or cancels an invoice. When to issue one (errors, returns, discounts), what it must show, examples, and how it affects VAT and your books.
Invoice vs Purchase Order: What's the Difference?
A purchase order is the buyer's order; an invoice is the seller's request for payment. How they fit together, three-way matching, and why your PO number matters.
Commercial Invoice for International Shipping: What Customs Needs
What a commercial invoice is, when you need one for international shipping, every field customs expects (HS codes, origin, Incoterms), and common mistakes.
Invoice vs Bill: Is There a Difference?
An invoice and a bill are the same document seen from opposite sides of a sale. How accountants use each word, and when the difference matters.
What Is a Proforma Invoice? Meaning, Uses and Example
A proforma invoice is a preliminary bill sent before a sale is final. What it's for, what to include, how it differs from a commercial invoice and a quote.
Invoice vs Quote vs Estimate: What's the Difference?
A quote proposes a fixed price, an estimate is a best guess, and an invoice asks for payment. When to use each, what to include, and how they connect.
What Is an Invoice? Meaning, Purpose and Examples
What an invoice is, what it's used for, how it differs from a bill, receipt and quote, and the main types of invoice with examples.
Invoice Templates vs Invoicing Software: Which Do You Need?
When a free invoice template or generator is enough, when to switch to invoicing or accounting software, and what each actually costs you in time.
Invoice vs Receipt: What's the Difference?
An invoice asks for payment; a receipt proves it was made. When to send each, what goes on them, and whether you need both.
Invoice Numbers: What They Are and How to Number Invoices
What an invoice number is, why it must be unique and sequential, five numbering systems with examples, and how to fix a gap or duplicate.
What to Include on an Invoice: The Complete Checklist
Every detail an invoice needs, which ones are legally required in the US, UK, EU and Australia, and the optional extras that get you paid faster.
How to Write an Invoice (With a Worked Example)
How to write an invoice that gets paid: the 10 details to include, a line-by-line worked example, payment terms that work, and the mistakes that delay payment.