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Invoicing guides

How-tos, templates, and explainers for freelancers and small businesses. Skim the table of contents on each post; everything links to the free generator when you're ready to act.

Guides
47
Categories
3
Languages
3
Invoice
2026-014
Due
Jun 6
Bill to
Acme Holdings, Inc.
Web design$4,500
Brand guide$1,200
Total$5,700
Sent
guidesJun 8, 2026

Time and Materials Invoice: How to Bill T&M Work (With Example)

What a time and materials contract is, how to invoice it line by line — labor hours, materials, markup, tax — plus not-to-exceed caps and a worked example.

12 min readRead
definitionsJun 6, 2026

What Is a Debit Note? Definition, Examples, and When to Use One

A debit note signals that more money is owed on a transaction. Who issues one (buyer or seller), what it contains, how it differs from a credit note and an invoice, with a worked example.

11 min readRead
guidesJun 6, 2026

Early Payment Discount: Is 2/10 Net 30 Worth It?

An early payment discount trades margin for faster cash. Here's how 2/10 Net 30 works, why it costs ~36% annualized, when to offer one, and how to show it on an invoice.

11 min readRead
templatesJun 5, 2026

How to Invoice as a Consultant (with a Free Consulting Invoice Template)

How to invoice as a consultant: the fields a consulting invoice must include, the three billing models (hourly, fixed, retainer), a worked example, payment terms, and how to get paid faster.

10 min readRead
guidesJun 5, 2026

How Long Do You Need to Keep Invoices? (Record Retention Rules Explained)

How long to keep invoices depends on your tax authority. The US IRS baseline is 3 years, but 6 or 7 years is safer in some cases. Here's the rule by situation, plus digital storage best practice.

10 min readRead
guidesJun 5, 2026

How to Cancel or Void an Invoice (Void vs Delete vs Credit Note)

Can you cancel an invoice once it's sent? Don't delete it. Void it or issue a credit note to preserve the audit trail and your invoice numbering. A decision matrix for every scenario.

11 min readRead
guidesJun 5, 2026

How to Invoice for Hours Worked (Hourly Invoicing Guide)

Track your hours, structure line items as hours × rate, set rounding rules, and get your hourly invoice approved and paid. A practical guide for freelancers.

10 min readRead
guidesJun 5, 2026

Quote vs Invoice: What's the Difference (and When to Send Each)?

A quote is a non-binding price proposal you send before work begins; an invoice is a legally binding request for payment you send after. Here's how the two fit together and when to send each.

9 min readRead
guidesMay 20, 2026

Recurring Invoice: When to Use One (and How It Differs From a Subscription)

Recurring invoices repeat on a schedule — weekly, monthly, quarterly. Here's when they make sense, how to set them up, and the difference between a recurring invoice and a real subscription.

10 min readRead
guidesMay 18, 2026

E-Invoicing Explained: PDF vs Structured Invoice (and Why It Matters in 2026)

E-invoicing is a structured machine-readable invoice, not just a PDF emailed to the client. What's required by country, who has to comply, and what freelancers actually need to do.

11 min readRead
guidesMay 16, 2026

Purchase Order vs Invoice: What's the Difference?

Purchase orders and invoices are not the same document. POs come from the buyer before work; invoices come from the seller after. Here's how the 3-way match works and when you need a PO number on your invoice.

12 min readRead
guidesMay 14, 2026

Invoice Email Template: 8 Examples to Copy (First Send to Final Notice)

Eight copy-paste invoice email templates: first send, polite reminder, formal chase, final notice, paid confirmation, recurring monthly, dispute response.

13 min readRead
templatesMay 13, 2026

Self-Employed Invoice Template (Free, 2026): Sole Prop & Single-Member LLC

A free self-employed invoice template for US sole proprietors and single-member LLCs. Legal name + DBA, EIN, Schedule C alignment — what to include and what to skip.

9 min readRead
definitionsMay 12, 2026

Tax Invoice: What It Is and What's Required (by Country)

A tax invoice is an invoice that meets a country's tax-authority requirements. What's required, when you need one, and how it differs from a regular invoice.

13 min readRead
guidesMay 11, 2026

How to Invoice International Clients (Currency, Tax, Wise vs PayPal vs Stripe)

A US freelancer's guide to invoicing clients abroad: which currency to bill in, whether to charge sales tax/VAT, and how to actually receive the money without losing 5% to fees.

12 min readRead
guidesMay 10, 2026

How to Charge Late Fees on Invoices: A Practical Guide for Freelancers

When you can legally charge late fees, the typical rates by state, the exact wording to put on your invoice and contract, and how to actually collect them.

12 min readRead
guidesMay 9, 2026

Credit Note vs Invoice: When to Issue One (Templates + Examples)

A credit note reduces or cancels an already-issued invoice. When to issue one (refund, return, error, discount), what to put on it, and why you should never just void or edit the original.

10 min readRead
templatesMay 8, 2026

Freelance Invoice Template (Free, 2026): Web, PDF, Word & Google Docs

The best free freelance invoice templates for 2026, sorted by format. Why web generators beat downloadable Word and Excel files for most freelancers.

9 min readRead
definitionsMay 7, 2026

What Is a Proforma Invoice? (When to Use One and How It Differs)

A proforma invoice is a preliminary invoice — looks like an invoice but functions like a quote. When to use it, what to include, and how it differs from a real invoice.

11 min readRead
definitionsMay 6, 2026

Invoice vs Receipt: What's the Difference (and When You Need Each)

Invoices request payment; receipts confirm it. Side-by-side comparison, when to issue each, what's required on both, and tax implications.

8 min readRead
guidesMay 5, 2026

How to Follow Up on an Unpaid Invoice (Email Templates + Timing)

Day-by-day cadence for chasing unpaid invoices: when to email, when to call, when to escalate. With copy-paste email templates that get clients to pay.

10 min readRead
guidesMay 4, 2026

How to Send an Invoice (Email, Portal, or Mail) That Gets Paid

How to actually send an invoice once it's written: email format, who to CC, AP portals, follow-up cadence, and the small details that get you paid faster.

8 min readRead
guidesMay 2, 2026

Invoice Number Format (How to Number Invoices in 2026)

How to number invoices: sequential, year-prefixed, client-prefixed. Pick a format, what to avoid, and how to keep a system that survives audits.

8 min readRead
guidesApr 29, 2026

Self-Employed Invoice Guide (Sole Proprietor + Single-Member LLC)

How to invoice clients when you're self-employed in the US: legal name vs DBA, EIN vs SSN, Schedule C alignment, and a free template.

8 min readRead
guidesApr 28, 2026

Deposit Invoice: How to Bill 50% Upfront Without Losing the Job

How to write a deposit (down payment) invoice, what percentage to ask for, how it differs from a retainer, and the exact language that gets clients to pay before work starts.

10 min readRead
definitionsApr 25, 2026

"Due Upon Receipt" Meaning on an Invoice (And When to Use It)

"Due upon receipt" means payment is due immediately when the invoice is received — but in practice, that translates to within ~5 business days. Here is when to use it, when not to, and the alternatives.

7 min readRead
guidesApr 24, 2026

1099 vs W-2: The Independent Contractor vs Employee Guide for 2026

1099 contractor or W-2 employee? The IRS classification test, tax forms and withholding, benefits, self-employment tax, and how to know which one applies to your work.

12 min readRead
guidesApr 23, 2026

Commercial Invoice: What It Is, When You Need One (vs Tax & Proforma)

A commercial invoice is a customs document required for international shipments. Here's what it must include, when you need one, and how it differs from a tax invoice or proforma.

9 min readRead
guidesApr 22, 2026

1099 Contractor Invoice (Template + What the IRS Actually Wants)

How to write a 1099 contractor invoice that matches your W-9, aligns with the 1099-NEC, and won't get you a CP2000 notice in April.

9 min readRead
guidesApr 19, 2026

Invoice vs Bill: What's the Difference (and Why Accountants Care)?

Invoices and bills are the same document seen from opposite sides. The seller calls it an invoice; the buyer records it as a bill in accounts payable. Here's why it matters.

8 min readRead
guidesApr 18, 2026

Freelance Invoice Guide (Template + What to Include in 2026)

How to write a freelance invoice that gets paid: required fields, payment terms freelancers actually use, US tax basics, and a free template.

10 min readRead
guidesApr 15, 2026

Invoice Factoring vs Invoice Financing: Which One Fits a Freelancer?

Invoice factoring sells your unpaid invoices for cash now; invoice financing borrows against them. What each costs, when each makes sense, and freelancer-specific gotchas.

10 min readRead
templatesApr 14, 2026

The Best Free Invoice Template for 2026 (Web, PDF, Word, Excel)

Pick the right invoice template — by format, by job, by use case. Why web generators beat Word docs, plus free downloads and a 10-field checklist.

12 min readRead
guidesApr 12, 2026

Net 30 Payment Terms: What They Mean and When to Use Them

Net 30 means payment is due 30 days from the invoice date. Here's how the clock actually works, when to use Net 30 vs Net 15 vs Net 60, and the early-payment discount math.

10 min readRead
guidesApr 10, 2026

Invoice Payment Terms Explained (Net 30, Net 15, Due Upon Receipt)

Net 30, Net 15, Due Upon Receipt, 2/10 Net 30 — what every common invoice payment term actually means and which one to pick.

9 min readRead
guidesApr 8, 2026

Retainer Invoice: How to Bill a Monthly Retainer (Template + Examples)

How retainer invoices differ from project invoices, when to bill upfront vs at month-end, what to put on the line items, and how to handle unused hours.

8 min readRead
definitionsApr 7, 2026

What Is an Invoice? A Plain-English Guide for 2026

An invoice is a bill — but a specific kind. Learn what an invoice is, what it's for, the legal basics, and how it differs from a receipt or bill.

10 min readRead
guidesApr 5, 2026

Milestone Billing: How to Structure Project Invoices in Phases

How milestone billing works, how to break a project into invoiceable phases, sample milestone schedules by project size, and how it compares to deposits and retainers.

9 min readRead
guidesApr 3, 2026

How to Write an Invoice (2026 Guide for Freelancers and Small Businesses)

Step-by-step: what to put on an invoice, how to set payment terms, what makes one legally valid in the US, and how to get paid faster.

9 min readRead
guidesApr 1, 2026

How to Make an Invoice: A Complete 2026 Guide for Freelancers and Small Businesses

How to make an invoice that actually gets paid: the 8 fields every invoice needs, the three formats (Word, PDF, web generator), a step-by-step walkthrough, and the mistakes that delay payment.

11 min readRead