Invoicing Guides
Practical guides on invoicing, quotes, payment terms, and running your business finances, written for freelancers, contractors, and small businesses.
Invoice basics
Learn what belongs on a professional invoice, how to present line items, and how to make payment instructions clear before you send a PDF to a client.
Quotes and estimates
Compare quotes, estimates, proforma invoices, and final invoices so your client understands what is proposed, approved, and ready to pay.
Payment terms
Use the guides to choose terms like due on receipt, Net 7, Net 14, or Net 30, and then apply those terms inside the invoice generator.
How to Write a Professional Invoice (Step by Step)
Learn exactly what to include on an invoice, how to format it, and how to get paid faster.
Read guideInvoice Payment Terms Explained (Net 30, Due on Receipt & More)
A plain-English guide to payment terms — what they mean, which to use, and how they affect cash flow.
Read guideWhat Is a Proforma Invoice? (And When to Use One)
Proforma invoices explained: what they are, how they differ from a regular invoice, and when to send one.
Read guideInvoice vs Quote: What's the Difference?
Understand the difference between an invoice and a quote, and when to use each document in your business.
Read guideHow to Write a Quote or Estimate for a Client
A step-by-step guide to creating a professional quote that wins jobs and sets clear expectations.
Read guide