Invoicing Basics
Practical guides on invoicing basics — clear writing for freelancers and small-business owners.
12 articles
- 01Invoicing BasicsAug 9, 2026
Can You Change an Invoice After Sending It? How to Correct Invoice Mistakes
Once an invoice is sent you shouldn't silently edit it. Here's how to void, reissue, or use a credit note to fix wrong amounts, clients, or tax.
8 min read - 02Invoicing BasicsAug 3, 2026
How to Invoice for Materials and Labor (Trades Guide + Free Template)
A contractor's guide to splitting materials from labor on an invoice, handling markup, taxing parts versus services, and presenting a clear total.
8 min read - 03Invoicing BasicsAug 1, 2026
How to Invoice for Hourly Work: Time Tracking, Rates & a Free Template
A practical guide to billing by the hour: tracking billable time, building line items from hours times rate, handling rounding, and presenting it so clients pay without questions.
8 min read - 04Invoicing BasicsJul 29, 2026
How to Bill Clients for Expenses: Reimbursable Expenses on Invoices
How to recharge travel, materials, software and subcontractor costs to clients, whether to add markup, and how VAT and sales-tax rules apply.
8 min read - 05Invoicing BasicsJul 27, 2026
What Is Progress Billing? How to Invoice a Project in Stages
A practical guide to milestone and staged invoicing for freelancers and contractors, covering deposits, progress claims, retainage, and sample wording.
8 min read - 06Invoicing BasicsJun 29, 2026
How to Invoice Someone as an Individual (Without a Company)
You don't need a registered company to send a legal invoice. Here's exactly what to put on it, how to get paid, and the tax basics in the US, UK, Canada, and Australia.
8 min read - 07Invoicing BasicsJun 18, 2026
How to Write an Invoice: A Step-by-Step Guide (2026)
Step-by-step guide to writing an invoice: required fields, line items, tax, payment terms, and the mistakes that cause late payments. Free templates included.
10 min read - 08Invoicing BasicsJun 16, 2026
Invoicing as a Sole Trader: What to Include & How to Get Paid
You don't need a limited company to send an invoice. What a sole trader's invoice must show, how tax works, the records to keep, and the habits that get you paid on time.
10 min read - 09Invoicing BasicsMay 25, 2026
Invoice Numbering: Best Practices & Systems
How to number your invoices correctly: sequential systems, date-based formats, prefix conventions, legal requirements by country, and mistakes that trigger audits.
9 min read - 10Invoicing BasicsMay 21, 2026
How to Invoice International Clients (Currency, Tax & Getting Paid)
Practical guide to cross-border invoicing: choosing currencies, handling FX fees, VAT reverse charge, W-8BEN forms, payment methods, and avoiding costly mistakes.
12 min read - 11Invoicing BasicsMay 17, 2026
How to Send an Invoice (Email Templates & Best Practices)
Step-by-step guide to sending invoices by email, including copy-paste email templates, subject line formulas, attachment tips, and follow-up sequences.
10 min read - 12Invoicing BasicsMay 7, 2026
How to Invoice as a Freelancer (Complete Guide)
Everything freelancers need to know about invoicing: what to include, how to set rates, payment terms, tax obligations, and getting paid on time.
11 min read