{"id":749,"date":"2026-08-29T09:52:48","date_gmt":"2026-08-29T09:52:48","guid":{"rendered":"https:\/\/brandedinvoice.com\/blog\/?p=749"},"modified":"2026-08-29T09:52:48","modified_gmt":"2026-08-29T09:52:48","slug":"how-to-write-an-invoice","status":"publish","type":"post","link":"https:\/\/brandedinvoice.com\/blog\/how-to-write-an-invoice\/","title":{"rendered":"How to Write an Invoice \u2014 Complete Beginner Guide"},"content":{"rendered":"<article>\n<p><strong>How to write an invoice<\/strong> is the first thing new freelancers ask me, and the fear is usually the same: missing a required field, looking unprofessional, or waiting months to get paid. If you are writing an invoice for the first time, the legal side can feel like a blind compliance test.<\/p>\n<p>According to LinkedIn data compiled by David Gargaro, the average freelancer waits <strong>39 days<\/strong> to get paid after sending an invoice <a href=\"https:\/\/www.linkedin.com\/posts\/davidgargaro_whats-your-client-payment-schedule-like-activity-7470454083808612371-Slan\" target=\"_blank\" rel=\"noopener\">[source 5]<\/a>. A missing tax ID, unclear payment terms, or a vague service description can add even more delay.<\/p>\n<p>Use this beginner invoice guide to write a legally defensible first invoice that gives clients fewer reasons to dispute, ignore, or slow walk payment.<\/p>\n<div style=\"background-color: #f8f9fa; border-left: 4px solid #333; padding: 20px; margin-bottom: 30px;\">\n<h4>Key Takeaways<\/h4>\n<ul>\n<li>A compliant invoice needs a unique invoice number, issue date, full legal names and addresses, applicable tax IDs, clear service descriptions, unit rates, quantities, subtotals, tax breakdown, and total payable <a href=\"https:\/\/www.perk.com\/blog\/invoice-compliance-checklist\" target=\"_blank\" rel=\"noopener\">Perk [source 3]<\/a>.<\/li>\n<li>Freelancers wait an average of 39 days to get paid after sending an invoice, so set explicit payment terms and follow up earlier than feels comfortable <a href=\"https:\/\/www.linkedin.com\/posts\/davidgargaro_whats-your-client-payment-schedule-like-activity-7470454083808612371-Slan\" target=\"_blank\" rel=\"noopener\">[source 5]<\/a>.<\/li>\n<li>Good invoicing practices can reduce the average payment cycle from 45 days to under 30, according to recent industry reports <a href=\"https:\/\/www.pinebill.app\/blog\/best-practices-for-freelancer-invoicing-in-2025-get-paid-faster\" target=\"_blank\" rel=\"noopener\">PineBill [source 4]<\/a>.<\/li>\n<\/ul>\n<\/div>\n<h2>Table of contents<\/h2>\n<ul class=\"toc\">\n<li><a href=\"#legal-must-haves\">Legal must-haves when writing an invoice for the first time<\/a><\/li>\n<li><a href=\"#step-by-step\">Step-by-step: how to write a simple invoice (fill-out template)<\/a><\/li>\n<li><a href=\"#payment-terms\">What payment terms should I set (and why Net 30 is common)<\/a><\/li>\n<li><a href=\"#wait-to-get-paid\">How long will you actually wait to get paid? (expectation setting)<\/a><\/li>\n<li><a href=\"#compliance-checklist\">The compliance checklist (copyable)<\/a><\/li>\n<li><a href=\"#sample-invoice\">Fill this invoice today (sample first-invoice filled example)<\/a><\/li>\n<li><a href=\"#get-paid-faster\">How to get paid faster (tactics proven to help)<\/a><\/li>\n<li><a href=\"#if-they-dont-pay\">If they don\u2019t pay: first steps to collect<\/a><\/li>\n<li><a href=\"#tools\">Tools and alternatives to manual invoices<\/a><\/li>\n<li><a href=\"#common-mistakes\">Common mistakes first-timers make (and exact wording to avoid)<\/a><\/li>\n<li><a href=\"#faq\">Quick FAQ (legal questions and one-line answers)<\/a><\/li>\n<li><a href=\"#printable-checklist\">One-page printable checklist &#038; email templates to send with your invoice<\/a><\/li>\n<li><a href=\"#conclusion\">Conclusion<\/a><\/li>\n<\/ul>\n<h2 id=\"legal-must-haves\">Legal must-haves when writing an invoice for the first time<\/h2>\n<p>Before you send anything, get the data fields right. A compliant invoice is one that tax authorities and clients can pay, record, and audit without dispute. Missing one required field is a common reason invoices get rejected or ignored.<\/p>\n<p>According to the <a href=\"https:\/\/www.perk.com\/blog\/invoice-compliance-checklist\" target=\"_blank\" rel=\"noopener\">Perk Invoice Compliance Checklist [source 3]<\/a>, at minimum you must include:<\/p>\n<ul>\n<li>A unique invoice number, ideally sequential<\/li>\n<li>The issue date<\/li>\n<li>Full legal name and address of the seller, meaning you<\/li>\n<li>Full legal name and address of the buyer, meaning your client<\/li>\n<li>Valid tax numbers when applicable, such as VAT, GST, EIN, or TIN<\/li>\n<li>A clear description of the goods or services provided<\/li>\n<li>Unit rates and quantities<\/li>\n<li>Subtotals<\/li>\n<li>Tax breakdowns and tax amounts<\/li>\n<li>Total payable<\/li>\n<\/ul>\n<p>You also need explicit payment terms and a disclosed late fee policy if you plan to charge one. That aligns with newer legal protections like New York\u2019s Freelance Isn\u2019t Free law, which took effect in August 2024 and introduced 30-day payment requirements and penalties. Similar protections exist in California and Los Angeles <a href=\"https:\/\/www.mediapost.com\/publications\/article\/415441\/payments-to-agencies-freelancers-increasingly-del.html\" target=\"_blank\" rel=\"noopener\">Mediapost [source 1]<\/a>.<\/p>\n<p>Do not treat the invoice as your contract. Invoices can be disputed, and they do not replace a signed agreement. Only business contracts can serve as legal documents <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">Bill.com [source 8]<\/a>.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/brandedinvoice.com\/blog\/wp-content\/uploads\/2026\/08\/e802f6c22b6399ef21516661afc82d8e_1_1787399562_8068.jpg.jpg\" alt=\"how to write an invoice - Illustration 1\" class=\"wp-image-assigned\" title=\"\"><\/figure>\n<h2 id=\"step-by-step\">Step-by-step: how to write a simple invoice (fill-out template)<\/h2>\n<p>You can write a simple invoice in Google Docs, Excel, or with a <a href=\"https:\/\/brandedinvoice.com\/\" target=\"_blank\" rel=\"noopener\">free invoice template<\/a>. Here is the exact field sequence to follow.<\/p>\n<ol>\n<li><strong>Your business details.<\/strong> Add your full legal name or business name, address, email, and phone number.<\/li>\n<li><strong>Invoice number.<\/strong> Use a sequential number like INV-001. Never repeat numbers.<\/li>\n<li><strong>Invoice date and due date.<\/strong> Put the date you issue the invoice and the date payment is due.<\/li>\n<li><strong>Client details.<\/strong> Add the client\u2019s full legal name, company name if any, address, and email.<\/li>\n<li><strong>Service description.<\/strong> Write exactly what you did. Example: \u201cWebsite maintenance for March 2026, one site, 2 hours.\u201d Vague descriptions invite disputes.<\/li>\n<li><strong>Unit rate, quantity, line total.<\/strong> List the rate and quantity. This example is illustrative only, not an industry rate.<\/li>\n<li><strong>Subtotal, tax, total.<\/strong> Add the subtotal, any applicable tax rate and amount, then the total payable.<\/li>\n<li><strong>Payment terms.<\/strong> Write \u201cNet 15\u201d, \u201cNet 30\u201d, or \u201cDue on receipt\u201d based on your agreement.<\/li>\n<li><strong>Payment methods.<\/strong> Include bank transfer details, PayPal, or Stripe. Make it easy for the client to pay.<\/li>\n<li><strong>Invoice note.<\/strong> Add one line: \u201cPlease include invoice number in payment reference.\u201d<\/li>\n<li><strong>Save as PDF.<\/strong> Send it by email. Never send an editable document that can be changed.<\/li>\n<\/ol>\n<p>Keep the invoice as a payment request, not a contract. <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">Bill.com [source 8]<\/a> confirms that invoices can be disputed.<\/p>\n<h2 id=\"payment-terms\">What payment terms should I set (and why Net 30 is common)<\/h2>\n<p>The most common terms are Net 15 and Net 30. \u201cDue on receipt\u201d is also an option, but it can backfire with clients who need internal approval to process payments. <a href=\"https:\/\/blog.annabyang.com\/invoicing-software-freelancers\" target=\"_blank\" rel=\"noopener\">Annabyang [source 9]<\/a> notes that same day payment may be impractical for many clients.<\/p>\n<p>There is also a compliance reason to choose a clear due date. New York\u2019s Freelance Isn\u2019t Free style rules and similar protections now impose 30-day payment requirements in some jurisdictions, with penalties for late payers <a href=\"https:\/\/www.mediapost.com\/publications\/article\/415441\/payments-to-agencies-freelancers-increasingly-del.html\" target=\"_blank\" rel=\"noopener\">Mediapost [source 1]<\/a>.<\/p>\n<ul>\n<li><strong>Net 15 pros:<\/strong> Faster cash, fewer days in accounts receivable. Cons: can feel aggressive to enterprise clients.<\/li>\n<li><strong>Net 30 pros:<\/strong> Industry standard, easier for clients to approve. Cons: you wait longer, often past 30 days.<\/li>\n<li><strong>Due on receipt pros:<\/strong> Fastest possible request. Cons: many clients cannot pay same day, so you may look rigid.<\/li>\n<\/ul>\n<p>For most first time freelancers, Net 15 or Net 30 is the realistic choice. Pair it with a follow-up schedule.<\/p>\n<h2 id=\"wait-to-get-paid\">How long will you actually wait to get paid? (expectation setting)<\/h2>\n<p>Do not assume a Net 30 invoice means payment on day 30. The average freelancer waits 39 days after sending an invoice <a href=\"https:\/\/www.linkedin.com\/posts\/davidgargaro_whats-your-client-payment-schedule-like-activity-7470454083808612371-Slan\" target=\"_blank\" rel=\"noopener\">[source 5]<\/a>.<\/p>\n<div style=\"background-color: #f8f9fa; border-left: 4px solid #333; padding: 20px; margin-bottom: 30px;\">\n<ul>\n<li><strong>39 days<\/strong> is the average wait after sending an invoice <a href=\"https:\/\/www.linkedin.com\/posts\/davidgargaro_whats-your-client-payment-schedule-like-activity-7470454083808612371-Slan\" target=\"_blank\" rel=\"noopener\">[source 5]<\/a><\/li>\n<li><strong>71% of freelancers<\/strong> have experienced late payments <a href=\"https:\/\/invoicely.timelinedigi.com\/blog\/articles\/02-freelance-invoicing-guide-getting-paid-faster.php\" target=\"_blank\" rel=\"noopener\">Invoicely [source 2]<\/a><\/li>\n<li><strong>85% of freelancers<\/strong> have experienced late payments at some point, according to a report cited by <a href=\"https:\/\/akaunting.com\/blog\/7-invoicing-best-practices-for-freelancers-to-get-paid-faster\" target=\"_blank\" rel=\"noopener\">Akaunting [source 6]<\/a><\/li>\n<li><strong>45 to under 30 days.<\/strong> Good invoicing practices reduce the average payment cycle from about 45 days to under 30 <a href=\"https:\/\/www.pinebill.app\/blog\/best-practices-for-freelancer-invoicing-in-2025-get-paid-faster\" target=\"_blank\" rel=\"noopener\">PineBill [source 4]<\/a><\/li>\n<\/ul>\n<\/div>\n<p>This gap is why a clean, complete invoice matters. It removes excuses and makes you look like a vendor worth paying on time.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/brandedinvoice.com\/blog\/wp-content\/uploads\/2026\/08\/865089806f32a30a101857276531943d_1_1787399600_4924.jpg.jpg\" alt=\"how to write an invoice - Illustration 2\" class=\"wp-image-assigned\" title=\"\"><\/figure>\n<h2 id=\"compliance-checklist\">The compliance checklist (copyable)<\/h2>\n<p>Copy this into a checklist, a notes app, or a spreadsheet. Check each item before you hit send.<\/p>\n<ul>\n<li>Unique invoice number<\/li>\n<li>Issue date<\/li>\n<li>Due date or payment terms<\/li>\n<li>Your full legal name and address<\/li>\n<li>Client\u2019s full legal name and address<\/li>\n<li>Tax ID when required, such as VAT, GST, EIN, or TIN<\/li>\n<li>Clear description of service or goods<\/li>\n<li>Unit rate<\/li>\n<li>Quantity<\/li>\n<li>Subtotal<\/li>\n<li>Tax rate and tax amount if applicable<\/li>\n<li>Total amount due<\/li>\n<li>Payment methods<\/li>\n<li>Late fee policy if you choose to disclose one<\/li>\n<\/ul>\n<p>Use this sample payment terms sentence: \u201cPayment due within 30 days of invoice date. Late payments may be subject to a late fee as disclosed in our agreement.\u201d Exact late fee enforceability depends on your jurisdiction and any applicable Freelance Isn\u2019t Free style protections <a href=\"https:\/\/www.mediapost.com\/publications\/article\/415441\/payments-to-agencies-freelancers-increasingly-del.html\" target=\"_blank\" rel=\"noopener\">Mediapost [source 1]<\/a>.<\/p>\n<h2 id=\"sample-invoice\">Fill this invoice today (sample first-invoice filled example)<\/h2>\n<p>Here is a completed sample invoice for a simple one month freelance website maintenance service. The values are illustrative only, not an industry rate or recommended price.<\/p>\n<div style=\"border: 1px solid #ddd; padding: 20px; background:#fff;\">\n<p><strong>Invoice #<\/strong> INV-001<\/p>\n<p><strong>Issue date:<\/strong> March 31, 2026<br \/><strong>Due date:<\/strong> April 30, 2026<\/p>\n<p><strong>From:<\/strong> Jordan Lee, 123 Freelancer Lane, Austin, TX 78701<br \/><strong>EIN:<\/strong> [Your tax ID here]<\/p>\n<p><strong>Bill to:<\/strong> Acme Creative LLC, 456 Client Ave, New York, NY 10001<\/p>\n<table style=\"width:100%; border-collapse:collapse;\">\n<tr style=\"border-bottom:1px solid #ddd;\">\n<th style=\"text-align:left;\">Description<\/th>\n<th style=\"text-align:left;\">Qty<\/th>\n<th style=\"text-align:left;\">Rate<\/th>\n<th style=\"text-align:left;\">Amount<\/th>\n<\/tr>\n<tr>\n<td>Website maintenance for March 2026<\/td>\n<td>2 hours<\/td>\n<td>Illustrative rate only<\/td>\n<td>Illustrative line total<\/td>\n<\/tr>\n<\/table>\n<p><strong>Subtotal:<\/strong> [Example only]<br \/><strong>Tax:<\/strong> [If applicable]<br \/><strong>Total payable:<\/strong> [Example only]<\/p>\n<p><strong>Payment terms:<\/strong> Net 30. Please reference invoice number in payment reference.<\/p>\n<p><strong>Payment methods:<\/strong> Bank transfer, PayPal, Stripe<\/p>\n<\/div>\n<p>Do not assume this invoice is a legal contract. Invoices can be disputed, and they do not replace your written agreement <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">Bill.com [source 8]<\/a>. If you prefer to skip manual formatting, use an <a href=\"https:\/\/brandedinvoice.com\/\" target=\"_blank\" rel=\"noopener\">editable invoice template<\/a> and replace the fields.<\/p>\n<h2 id=\"get-paid-faster\">How to get paid faster (tactics proven to help)<\/h2>\n<p>Delaying invoices increases the risk of late payment <a href=\"https:\/\/akaunting.com\/blog\/7-invoicing-best-practices-for-freelancers-to-get-paid-faster\" target=\"_blank\" rel=\"noopener\">Akaunting [source 6]<\/a>. The opposite also works. Good invoicing practices can reduce average payment cycles from 45 days to under 30 <a href=\"https:\/\/www.pinebill.app\/blog\/best-practices-for-freelancer-invoicing-in-2025-get-paid-faster\" target=\"_blank\" rel=\"noopener\">PineBill [source 4]<\/a>.<\/p>\n<ul>\n<li>Send the invoice the same day you finish the work.<\/li>\n<li>Use a clear, complete invoice with a visible due date.<\/li>\n<li>Use e-invoicing and real time payment options where available. PineBill notes these are expected to speed settlements in 2025 and 2026 <a href=\"https:\/\/www.pinebill.app\/blog\/best-practices-for-freelancer-invoicing-in-2025-get-paid-faster\" target=\"_blank\" rel=\"noopener\">[source 4]<\/a>.<\/li>\n<li>Follow up before the due date if you have not received confirmation.<\/li>\n<\/ul>\n<div style=\"background-color: #e3f2fd; padding: 20px; border-radius: 8px; margin-bottom: 20px;\"><strong>\ud83d\udca1 Pro Tip:<\/strong> Send your invoice as a PDF, not a Google Doc or Excel file. A PDF looks final, cannot be edited by the client, and is easier to attach in payment systems.<\/div>\n<div style=\"background-color: #fff3cd; padding: 20px; border-radius: 8px; border: 1px dashed #ffa000;\"><strong>\ud83d\udd25 Hacks &#038; Tricks:<\/strong> Schedule your first polite follow-up email for day 7 after sending, not day 30. The average wait is 39 days, so an early nudge can move you to the front of the queue without looking desperate. Use a <a href=\"https:\/\/brandedinvoice.com\/\" target=\"_blank\" rel=\"noopener\">simple invoice template free<\/a> to avoid manual formatting and reduce errors.<\/div>\n<h2 id=\"if-they-dont-pay\">If they don\u2019t pay: first steps to collect<\/h2>\n<p>Your first step should always be to contact the client directly <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">Bill.com [source 8]<\/a>. Late payment is common, especially for creative freelancers. Nearly half of all invoices to creative freelancers are paid late <a href=\"https:\/\/www.kaplancollectionagency.com\/business-advice\/trickle-down-debt-how-late-client-payments-to-agencies-cascade-onto-freelancers\" target=\"_blank\" rel=\"noopener\">Kaplan Group [source 7]<\/a>.<\/p>\n<ul>\n<li><strong>Day 0:<\/strong> Send the invoice with polite wording and payment terms.<\/li>\n<li><strong>Day 3 to 5:<\/strong> Send a quick confirmation: \u201cJust confirming you received the invoice.\u201d<\/li>\n<li><strong>Day 7 to 10 after send:<\/strong> Follow up with a copy of the invoice and a clear payment link.<\/li>\n<li><strong>Day 30 or past due:<\/strong> Send a stronger reminder. Reference your payment terms and the original due date.<\/li>\n<li><strong>Day 45 to 60:<\/strong> If still unpaid, ask for a call. Then decide if you need a collection letter, small claims, or a dispute process.<\/li>\n<\/ul>\n<p>Use this first follow-up template: \u201cHi [Name], I wanted to check that you received invoice INV-001 for website maintenance, due April 30. The invoice is attached again for reference. Let me know if you need any updated payment details. Thanks.\u201d<\/p>\n<h2 id=\"tools\">Tools and alternatives to manual invoices<\/h2>\n<p>You can start with a manual invoice, but you may outgrow it quickly. Here are tools and methods covered in the research.<\/p>\n<div style=\"overflow-x:auto\">\n<table style=\"width:100%; border-collapse:collapse; border:1px solid #ddd;\">\n<thead>\n<tr style=\"background:#f4f4f4;\">\n<th>Tool or method<\/th>\n<th>Cost (as of 2026-08-22T07:54:08.820-04:00)<\/th>\n<th>Best for<\/th>\n<th>Main limitation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Manual invoice, Google Docs or Excel<\/td>\n<td>No additional cost if you already use them<\/td>\n<td>Your first invoice, very low volume<\/td>\n<td>No automation, easy to miss compliance fields<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/brandedinvoice.com\/\" target=\"_blank\" rel=\"noopener\">BrandedInvoice<\/a><\/td>\n<td>Free invoice template, app pricing not listed in research<\/td>\n<td>Generating a professional invoice in seconds<\/td>\n<td>May lack advanced accounting features<\/td>\n<\/tr>\n<tr>\n<td>PineBill<\/td>\n<td>Free tools mentioned in research <a href=\"https:\/\/www.pinebill.app\/blog\/best-practices-for-freelancer-invoicing-in-2025-get-paid-faster\" target=\"_blank\" rel=\"noopener\">[source 4]<\/a><\/td>\n<td>Freelancers who want faster settlement<\/td>\n<td>Limited product detail in provided research<\/td>\n<\/tr>\n<tr>\n<td>Bill.com<\/td>\n<td>Pricing not listed in provided research <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">[source 8]<\/a><\/td>\n<td>Accounts receivable automation and AP workflows<\/td>\n<td>May be more than a solo freelancer needs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><strong>Pick BrandedInvoice instead if<\/strong> you want a clean invoice without signing up for a full accounting suite. <strong>Pick manual instead if<\/strong> you only send one invoice per month and want zero new tools. <strong>Pick Bill.com instead if<\/strong> you need automated AR and you already handle higher invoice volume. <strong>Pick PineBill instead if<\/strong> you want free invoicing tools with best practice guidance built in.<\/p>\n<p>If you are just starting out, a <a href=\"https:\/\/brandedinvoice.com\/\" target=\"_blank\" rel=\"noopener\">simple invoice template free<\/a> can get you paid without a learning curve.<\/p>\n<h2 id=\"common-mistakes\">Common mistakes first-timers make (and exact wording to avoid)<\/h2>\n<ul>\n<li><strong>Mistake:<\/strong> Delaying the invoice after work is done.<br \/><strong>Why it matters:<\/strong> Delayed invoices increase late payment risk <a href=\"https:\/\/akaunting.com\/blog\/7-invoicing-best-practices-for-freelancers-to-get-paid-faster\" target=\"_blank\" rel=\"noopener\">Akaunting [source 6]<\/a>.<br \/><strong>Safe wording:<\/strong> Add a line in your project wrap up: \u201cThe invoice will be sent by the end of today.\u201d<\/li>\n<li><strong>Mistake:<\/strong> Treating the invoice as the contract.<br \/><strong>Why it matters:<\/strong> Invoices can be disputed, and they do not carry the same legal weight as a contract <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">Bill.com [source 8]<\/a>.<br \/><strong>Safe wording:<\/strong> \u201cThis invoice is a payment request and is subject to the terms of our signed agreement.\u201d<\/li>\n<li><strong>Mistake:<\/strong> Vague service descriptions like \u201cwork\u201d or \u201cproject\u201d.<br \/><strong>Why it matters:<\/strong> Ambiguity creates grounds for dispute and delay.<br \/><strong>Safe wording:<\/strong> \u201cWebsite maintenance for March 2026, including plugin updates and backups, 2 hours.\u201d<\/li>\n<li><strong>Mistake:<\/strong> No payment terms or due date.<br \/><strong>Why it matters:<\/strong> Without a deadline, clients may pay late. 71% of freelancers have experienced late payments <a href=\"https:\/\/invoicely.timelinedigi.com\/blog\/articles\/02-freelance-invoicing-guide-getting-paid-faster.php\" target=\"_blank\" rel=\"noopener\">Invoicely [source 2]<\/a>.<br \/><strong>Safe wording:<\/strong> \u201cPayment due within 30 days of invoice date.\u201d<\/li>\n<\/ul>\n<h2 id=\"faq\">Quick FAQ (legal questions and one-line answers)<\/h2>\n<details>\n<summary>Is an invoice a legal document?<\/summary>\n<p>Invoices can be disputed and they do not replace contracts. Only business contracts can serve as legal documents, according to Bill.com <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">[source 8]<\/a>.<\/p>\n<\/details>\n<details>\n<summary>Is a tax ID always required?<\/summary>\n<p>A tax ID is required when you are registered for VAT, GST, or where local tax rules require it. Perk confirms valid tax numbers are part of a compliant invoice <a href=\"https:\/\/www.perk.com\/blog\/invoice-compliance-checklist\" target=\"_blank\" rel=\"noopener\">[source 3]<\/a>. Jurisdiction specific rules vary <a href=\"#\" target=\"_blank\" rel=\"noopener\">[NEEDS SOURCE: jurisdiction-specific tax-ID rules]<\/a>.<\/p>\n<\/details>\n<details>\n<summary>Can I charge late fees?<\/summary>\n<p>You can disclose a late fee policy on your invoice, but enforceability depends on your local law. Some jurisdictions have 30-day payment protections and penalties for late payers, including New York\u2019s Freelance Isn\u2019t Free style rules <a href=\"https:\/\/www.mediapost.com\/publications\/article\/415441\/payments-to-agencies-freelancers-increasingly-del.html\" target=\"_blank\" rel=\"noopener\">[source 1]<\/a>. Exact late fee caps require local legal review.<\/p>\n<\/details>\n<details>\n<summary>Do I need a separate contract if I send an invoice?<\/summary>\n<p>Yes. An invoice records a payment request. A contract sets the agreed terms and protects you if the invoice is disputed. Bill.com makes this distinction clear <a href=\"https:\/\/www.bill.com\/blog\/invoices-for-freelancers\" target=\"_blank\" rel=\"noopener\">[source 8]<\/a>.<\/p>\n<\/details>\n<details>\n<summary>How long should I wait before following up?<\/summary>\n<p>Do not wait 30 days. The average freelancer waits 39 days to get paid <a href=\"https:\/\/www.linkedin.com\/posts\/davidgargaro_whats-your-client-payment-schedule-like-activity-7470454083808612371-Slan\" target=\"_blank\" rel=\"noopener\">[source 5]<\/a>, so send a polite follow-up around day 7 after the invoice is sent.<\/p>\n<\/details>\n<h2 id=\"printable-checklist\">One-page printable checklist &#038; email templates to send with your invoice<\/h2>\n<p>Save this section as a checklist or print it before sending your first invoice.<\/p>\n<ul>\n<li>Unique invoice number<\/li>\n<li>Issue date<\/li>\n<li>Due date or payment terms<\/li>\n<li>Your full legal name and address<\/li>\n<li>Client\u2019s full legal name and address<\/li>\n<li>Tax ID when required<\/li>\n<li>Description of service or goods<\/li>\n<li>Unit rate<\/li>\n<li>Quantity<\/li>\n<li>Subtotal<\/li>\n<li>Tax rate and tax amount if applicable<\/li>\n<li>Total amount due<\/li>\n<li>Payment methods<\/li>\n<li>Late fee policy if applicable<\/li>\n<\/ul>\n<p>Email template initial send:<\/p>\n<p>\u201cHi [Name], I have attached invoice INV-001 for the work completed on March 31, 2026. The total due is [amount], payable by April 30, 2026. Please let me know if you need any changes to the payment details. Thank you.\u201d<\/p>\n<p>Email template follow-up at plus 7 days:<\/p>\n<p>\u201cHi [Name], I am following up on invoice INV-001, sent on March 31. I know inboxes get full, so I have attached the invoice again for you. The due date is April 30. Let me know if anything is missing on your end.\u201d<\/p>\n<p>Email template stronger follow-up at plus 30 days:<\/p>\n<p>\u201cHi [Name], invoice INV-001 is now past due. The original due date was April 30, 2026. Can you confirm when payment will be sent? If there is an issue, I would rather sort it out now than let it drag.\u201d<\/p>\n<p>The follow-up timing is intentionally early because the average payment lag is 39 days <a href=\"https:\/\/www.linkedin.com\/posts\/davidgargaro_whats-your-client-payment-schedule-like-activity-7470454083808612371-Slan\" target=\"_blank\" rel=\"noopener\">[source 5]<\/a>. For a ready made field set, grab an <a href=\"https:\/\/brandedinvoice.com\/\" target=\"_blank\" rel=\"noopener\">invoice template PDF free download<\/a> so you do not recreate this from scratch.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/brandedinvoice.com\/blog\/wp-content\/uploads\/2026\/08\/cfa3fddd59e1f09935017a9d754733b5_1_1787399632_5047.jpg.jpg\" alt=\"how to write an invoice - Illustration 3\" class=\"wp-image-assigned\" title=\"\"><\/figure>\n<h2 id=\"conclusion\">Conclusion<\/h2>\n<p>Start with a manual or template invoice if you are sending one or two invoices a month and you want to stay lean. Use a free invoice template to look professional from the first send. Move to a dedicated invoicing tool like BrandedInvoice or Bill.com when you need automation, tracking, or recurring billing.<\/p>\n<p>Look elsewhere if you need advanced accounts receivable automation from day one, contractual legal protection, or jurisdiction specific tax advice. Do not skip the contract just because you learned how to write an invoice. An invoice reduces payment friction, but it does not replace a signed agreement.<\/p>\n<p>Use this guide as your first invoice checklist, set Net 15 or Net 30, follow up early, and you will likely shorten the 39 day wait. Ready to start? Use a <a href=\"https:\/\/brandedinvoice.com\/\" target=\"_blank\" rel=\"noopener\">free invoice template<\/a> and send your first compliant invoice today.<\/p>\n<\/article>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is an invoice a legal document?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Invoices can be disputed and they do not replace contracts. Only business contracts can serve as legal documents, according to Bill.com.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is a tax ID always required?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A tax ID is required when you are registered for VAT, GST, or where local tax rules require it. Perk confirms valid tax numbers are part of a compliant invoice. Jurisdiction specific rules vary.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I charge late fees?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"You can disclose a late fee policy on your invoice, but enforceability depends on your local law. Some jurisdictions have 30-day payment protections and penalties for late payers, including New York's Freelance Isn't Free style rules. Exact late fee caps require local legal review.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need a separate contract if I send an invoice?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. An invoice records a payment request. A contract sets the agreed terms and protects you if the invoice is disputed. Bill.com makes this distinction clear.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long should I wait before following up?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Do not wait 30 days. The average freelancer waits 39 days to get paid, so send a polite follow-up around day 7 after the invoice is sent.\"\n      }\n    }\n  ]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How to write an invoice is the first thing new freelancers ask me, and the fear is usually the same: missing a required field, looking unprofessional, or waiting months to get paid. If you are writing an invoice for the first time, the legal side can feel like a blind compliance test. According to LinkedIn [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","rank_math_title":"How to Write an Invoice \u2014 Complete Beginner Guide","rank_math_description":"Learn how to write your first invoice step by step. 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