{"id":142,"date":"2026-07-06T08:00:00","date_gmt":"2026-07-06T08:00:00","guid":{"rendered":"https:\/\/bizinvoicegen.com\/blog\/get-paid-12-days-faster-with-better-invoices\/"},"modified":"2026-07-19T21:22:30","modified_gmt":"2026-07-19T21:22:30","slug":"what-to-include-on-an-invoice-checklist","status":"publish","type":"post","link":"https:\/\/bizinvoicegen.com\/blog\/what-to-include-on-an-invoice-checklist\/","title":{"rendered":"What to Include on an Invoice: Complete Checklist"},"content":{"rendered":"<p>A missing field on an invoice is one of the most common reasons payment gets delayed \u2014 the client&#8217;s accounts payable team can&#8217;t process it until they follow up for the missing detail, which adds days or weeks to your payment timeline.<\/p>\n<h2>The essentials<\/h2>\n<ul>\n<li>Your business name, address, and contact details<\/li>\n<li>Client&#8217;s name and billing address<\/li>\n<li>A unique invoice number, for both your records and theirs<\/li>\n<li>Invoice date and payment due date<\/li>\n<li>An itemized list of services or products, with quantity and rate for each<\/li>\n<li>Subtotal, any tax, and total amount due<\/li>\n<li>Accepted payment methods and where to send payment<\/li>\n<\/ul>\n<h2>Often forgotten, but frequently required<\/h2>\n<ul>\n<li>A purchase order (PO) number, if your client issued one \u2014 many companies won&#8217;t process an invoice without it<\/li>\n<li>Your tax ID or VAT number, if applicable in your jurisdiction<\/li>\n<li>Payment terms stated explicitly (Net 30, due on receipt, etc.), not just a due date<\/li>\n<\/ul>\n<h2>The fastest way to avoid a missing field<\/h2>\n<p>Use a template that already has every standard field built in, rather than rebuilding an invoice from scratch each time. <a href=\"https:\/\/bizinvoicegen.com\">BizInvoiceGen<\/a> covers the full list above so nothing gets left out under deadline pressure.<\/p>\n<h2>Why this checklist matters more than it looks<\/h2>\n<p>Invoice errors aren&#8217;t a minor annoyance &#8212; they&#8217;re one of the biggest drivers of late payment. Roughly 61% of late payments have been traced back to errors or missing information on the invoice itself, and studies of invoice quality have found error rates as high as 66% across typical small business invoicing. A missing field isn&#8217;t just sloppy, it&#8217;s a direct cause of getting paid slower.<\/p>\n<h2>The fields worth double-checking<\/h2>\n<ul>\n<li><strong>A unique invoice number.<\/strong> Sequential and unique, so both you and your client can reference it in any dispute or payment confirmation without ambiguity.<\/li>\n<li><strong>Explicit payment terms.<\/strong> &#8220;Net 30&#8221; printed clearly, not implied. Include the actual due date as a calendar date, not just the term &#8212; clients are far less likely to miscalculate a fixed date than count 30 days from an unclear issue date.<\/li>\n<li><strong>Itemized line items.<\/strong> Vague single-line invoices (&#8220;Consulting services &#8212; $2,400&#8221;) generate more payment disputes and follow-up questions than itemized ones, which slows payment even when the client isn&#8217;t disputing the total.<\/li>\n<li><strong>Your business&#8217;s tax ID or registration number<\/strong> where required &#8212; missing this is a common reason invoices get kicked back by a client&#8217;s accounts payable department before they&#8217;re even queued for payment.<\/li>\n<li><strong>Clear, prominent payment instructions<\/strong> &#8212; bank details or a direct payment link, ideally placed near the total rather than buried in fine print.<\/li>\n<li><strong>Your contact information<\/strong> for billing questions specifically, separate from general contact info, so a payment question doesn&#8217;t get lost in an unrelated inbox.<\/li>\n<\/ul>\n<h2>Common mistakes<\/h2>\n<ul>\n<li>Listing payment terms only as a code (&#8220;Net 30&#8221;) without a calculated due date, forcing the client to do the math themselves.<\/li>\n<li>Leaving the invoice number off entirely, making it hard for a client&#8217;s AP team to reference the invoice when processing payment.<\/li>\n<li>Burying payment details at the bottom of a long invoice instead of making them immediately visible near the total due.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Speed up payments by 8-12 days with better invoices. Reduce late payment risk, improve cash flow, and get paid faster\u2014no rate increases needed.<\/p>\n","protected":false},"author":1,"featured_media":141,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[35,17,19,24,16,29],"class_list":["post-142","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-freelance-invoicing","tag-faster-payment","tag-freelance-invoicing","tag-getting-paid-faster","tag-invoice-generator","tag-invoice-template","tag-invoice-tips"],"_links":{"self":[{"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/posts\/142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/comments?post=142"}],"version-history":[{"count":3,"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/posts\/142\/revisions"}],"predecessor-version":[{"id":362,"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/posts\/142\/revisions\/362"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/media\/141"}],"wp:attachment":[{"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/media?parent=142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/categories?post=142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bizinvoicegen.com\/blog\/wp-json\/wp\/v2\/tags?post=142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}