{"course":{"slug":"independent-creative","title":"Working for Yourself","url":"https://addaly.com/learn/independent-creative","level":"intermediate","track":"create"},"lesson":{"slug":"the-invoice","title":"The document that has to survive an accounts system","url":"https://addaly.com/learn/independent-creative/the-invoice","position":39,"of":84,"minutes":9,"answer":"Most late payments in small creative practices are caused by an invoice that could not be processed rather than by a client who would not pay, so the client's legal entity name, their reference number.","keyIdea":"Most late payments in small creative practices are caused by an invoice that could not be processed rather than by a client who would not pay, so the client's legal entity name, their reference number, a sequential invoice number and the accounts payable address matter more than the wording."},"body":{"format":"markdown","text":"## A document with a job to do\n\nAn invoice is not a request for money. It is the document that makes payment possible inside somebody else's system, and most late payments in small creative businesses are caused by an invoice that could not be processed rather than by a client who would not pay.\n\nThis is worth taking seriously because it is entirely within your control and it is free. A correctly formed invoice, sent to the right address, with the right reference on it, gets paid on the client's normal cycle. A missing purchase order number puts it in a queue that nobody owns.\n\n## What has to be on it\n\nRequirements differ by country, and if you are registered for a sales tax (GST, VAT, or the local equivalent) the legal requirements are stricter and you should check your own tax authority's specification rather than copy a template. The common core:\n\n- **The word \"Invoice\"**, visibly. Some accounting systems and some humans route documents on this alone.\n- **A unique invoice number**, sequential, never reused.\n- **The date of issue**, and the date payment is due, as an actual date.\n- **Your full legal name or business name and address**, and your tax registration number if you have one.\n- **The client's legal entity name and address**: the registered company, not the trading name or the individual you talk to. An invoice addressed to a person at a company can fail to match anything in their system.\n- **A description of the work**, itemised enough to be recognisable and matched to what was authorised.\n- **The amount**, the tax if applicable, and the total, with the currency stated explicitly. \"5,000\" without a currency is a genuine problem when either party is in a country with dollars, and it happens.\n- **Payment details**: account name, account number, sort code or IFSC or routing number, and for international payments the IBAN or SWIFT/BIC.\n- **Their reference**: the purchase order number, the job number, the cost centre. If they gave you one, it goes on the invoice. If you do not have one and they use them, ask before you send.\n\n## The numbering, which matters more than it looks\n\nUse a consistent sequence: `2026-014`, or `INV-0142`. Sequential numbering is required by many tax authorities, it makes your own records auditable, and it makes a gap noticeable.\n\nDo not restart at 1 each year unless your numbering includes the year. Do not skip numbers to appear busier; some systems expect continuity, and it makes your own books harder to reconcile.\n\n## Payment terms\n\n**Net 30** means payment is due thirty days after the invoice date. Net 14 and Net 7 exist. \"Due on receipt\" is common for small clients and meaningless to large ones, whose systems will pay on their standard cycle regardless of what you write.\n\nDecide your terms before you quote and put them in the quote, not first on the invoice. A client discovering your terms at the invoice stage will apply their own.\n\nKnow one specific thing about your client: **their payment run**. Many businesses pay on fixed dates (the last Friday, the 5th and the 20th) and an invoice arriving a day after the cut-off waits a full cycle. Asking \"when is your payment run and what is the cut-off?\" during the first project is a two-minute question that can remove three weeks of waiting, permanently.\n\n## Late payment terms\n\nState the consequence of lateness on the invoice and in your terms. Typically: interest at a stated percentage per month on overdue amounts, and a right to suspend work.\n\nTwo honest notes. In several jurisdictions there is a statutory right to interest and to fixed compensation on late commercial payments, which applies whether or not your contract mentions it; in others there is nothing unless you wrote it. Check your own. And in practice most freelancers never charge the interest, because enforcing it damages the relationship more than the sum is worth.\n\nIt still belongs on the document. The point of a stated late-payment term is that it exists to be waived: \"I'm not applying the interest, but the terms allow it, and I do need this settled this week\" is a much stronger position than having nothing to point at.\n\n## Sending it so it arrives\n\nSend a PDF, not a spreadsheet or a photo. Name the file usefully: `YourName-INV-0142-ClientName.pdf`.\n\nSend it to accounts payable, not only to your contact. Your contact will forward it eventually. Ask for the accounts email in the first project and use it thereafter, copying your contact so they know it has gone.\n\nSend it the moment the stage is complete. Invoices sent promptly get paid promptly; a week of your delay is a week added to their cycle, and it is a week you chose.\n\n## Doing it for nothing\n\nYou do not need paid invoicing software. A template in LibreOffice Calc or Google Sheets, exported to PDF, meets every requirement above. Keep the template and change the numbers.\n\nFree tools that do more, if you want them: **Wave** handles invoicing and basic accounting at no cost in supported countries, **Invoice Ninja** has a free tier and a self-hosted version, and **GnuCash** is full double-entry accounting, free and offline, if your affairs justify it.\n\nWhatever you use, keep your own copies. Every invoice you have ever issued, as PDFs, in a folder, backed up: tax authorities in most countries require you to retain records for several years, and an account you stop paying for may not give the archive back.\n\n## The limitation\n\nA perfect invoice does not make a client solvent, and it does not make a slow organisation fast. Large companies pay on their cycle, and some of them treat supplier payment as free credit regardless of terms.\n\nWhat the invoice controls is the failure you can prevent: the one caused by a missing reference, a wrong entity name, an unreadable file or an address that was never the right one. That category is a large share of late payments in small creative practices, and it is eliminated by twenty minutes of setup and one question asked at the start of the relationship."},"check":{"question":"A freelancer's invoices to one large client are routinely paid three to five weeks after the due date, though the client is solvent and pleasant. She sends them promptly to her day-to-day contact. What is the most likely cause, and the cheapest fix?","options":[{"text":"Her payment terms are too short for an organisation of that size; setting Net 45 would align the due date with when they actually pay.","correct":false,"tempting":"Aligns the paperwork with the delay rather than removing it, and a large payer's cycle is not shortened by lengthening your terms."},{"text":"The invoice is missing a late-payment interest clause, so there is no cost to the client in paying slowly and no lever to accelerate it.","correct":false,"tempting":"Interest terms give you something to point at in a dispute, but they rarely change the cycle of a large payer and do not explain an otherwise cooperative client."},{"text":"Large clients treat supplier payment as free credit as a matter of policy, so nothing she does to the invoice will change the outcome.","correct":false,"tempting":"Real for some organisations and a genuine structural problem, but it is a conclusion to reach after checking routing, not instead of checking it."},{"text":"The invoice goes to her contact rather than accounts payable, and probably misses their payment-run cut-off.","correct":true}]},"prev":{"slug":"getting-paid","title":"The deposit is the only real protection you have","url":"https://addaly.com/learn/independent-creative/getting-paid"},"next":{"slug":"chasing-late-payment","title":"An escalation ladder run on dates","url":"https://addaly.com/learn/independent-creative/chasing-late-payment"},"authorship":"Founder and series editor: Dr Mustafa Mun. Written by AI models to a written standard. Exam keys checked blind by a second model: 3,665 of 3,666 agreed. Academic review invited.","review":{"status":"Draft, open for academic review"},"cite":"Addaly (2026) 'The document that has to survive an accounts system', in Working for Yourself. Edited by M. Mun. Addaly. Available at: https://addaly.com/learn/independent-creative/the-invoice (Accessed: 13 October 2026).","licence":{"name":"CC BY-NC-SA 4.0","url":"https://creativecommons.org/licenses/by-nc-sa/4.0/"},"reader":{"schema":1,"title":"The document that has to survive an accounts system","courseTitle":"Working for Yourself","module":{"index":4,"slug":"the-money","title":"The money"},"answer":null,"keyIdea":"Most late payments in small creative practices are caused by an invoice that could not be processed rather than by a client who would not pay, so the client’s legal entity name, their reference number, a sequential invoice number and the accounts payable address matter more than the wording.","hero":{"kind":"plate","image":null,"alt":null,"caption":null},"blocks":[{"t":"h2","id":"a-document-with-a-job-to-do","runs":[{"text":"A document with a job to do"}]},{"t":"p","runs":[{"text":"An invoice is not a request for money. It is the document that makes payment possible inside somebody else’s system, and most late payments in small creative businesses are caused by an invoice that could not be processed rather than by a client who would not pay."}]},{"t":"p","runs":[{"text":"This is worth taking seriously because it is entirely within your control and it is free. A correctly formed invoice, sent to the right address, with the right reference on it, gets paid on the client’s normal cycle. A missing purchase order number puts it in a queue that nobody owns."}]},{"t":"h2","id":"what-has-to-be-on-it","runs":[{"text":"What has to be on it"}]},{"t":"p","runs":[{"text":"Requirements differ by country, and if you are registered for a sales tax (GST, VAT, or the local equivalent) the legal requirements are stricter and you should check your own tax authority’s specification rather than copy a template. The common core:"}]},{"t":"ul","items":[[{"text":"The word “Invoice”","b":true},{"text":", visibly. Some accounting systems and some humans route documents on this alone."}],[{"text":"A unique invoice number","b":true},{"text":", sequential, never reused."}],[{"text":"The date of issue","b":true},{"text":", and the date payment is due, as an actual date."}],[{"text":"Your full legal name or business name and address","b":true},{"text":", and your tax registration number if you have one."}],[{"text":"The client’s legal entity name and address","b":true},{"text":": the registered company, not the trading name or the individual you talk to. An invoice addressed to a person at a company can fail to match anything in their system."}],[{"text":"A description of the work","b":true},{"text":", itemised enough to be recognisable and matched to what was authorised."}],[{"text":"The amount","b":true},{"text":", the tax if applicable, and the total, with the currency stated explicitly. “5,000” without a currency is a genuine problem when either party is in a country with dollars, and it happens."}],[{"text":"Payment details","b":true},{"text":": account name, account number, sort code or IFSC or routing number, and for international payments the IBAN or SWIFT/BIC."}],[{"text":"Their reference","b":true},{"text":": the purchase order number, the job number, the cost centre. If they gave you one, it goes on the invoice. If you do not have one and they use them, ask before you send."}]]},{"t":"h2","id":"the-numbering-which-matters-more-than-it-looks","runs":[{"text":"The numbering, which matters more than it looks"}]},{"t":"p","runs":[{"text":"Use a consistent sequence: "},{"text":"2026-014","code":true},{"text":", or "},{"text":"INV-0142","code":true},{"text":". Sequential numbering is required by many tax authorities, it makes your own records auditable, and it makes a gap noticeable."}]},{"t":"p","runs":[{"text":"Do not restart at 1 each year unless your numbering includes the year. Do not skip numbers to appear busier; some systems expect continuity, and it makes your own books harder to reconcile."}]},{"t":"h2","id":"payment-terms","runs":[{"text":"Payment terms"}]},{"t":"p","runs":[{"text":"Net 30","b":true},{"text":" means payment is due thirty days after the invoice date. Net 14 and Net 7 exist. “Due on receipt” is common for small clients and meaningless to large ones, whose systems will pay on their standard cycle regardless of what you write."}]},{"t":"p","runs":[{"text":"Decide your terms before you quote and put them in the quote, not first on the invoice. A client discovering your terms at the invoice stage will apply their own."}]},{"t":"p","runs":[{"text":"Know one specific thing about your client: "},{"text":"their payment run","b":true},{"text":". Many businesses pay on fixed dates (the last Friday, the 5th and the 20th) and an invoice arriving a day after the cut-off waits a full cycle. Asking “when is your payment run and what is the cut-off?” during the first project is a two-minute question that can remove three weeks of waiting, permanently."}]},{"t":"h2","id":"late-payment-terms","runs":[{"text":"Late payment terms"}]},{"t":"p","runs":[{"text":"State the consequence of lateness on the invoice and in your terms. Typically: interest at a stated percentage per month on overdue amounts, and a right to suspend work."}]},{"t":"p","runs":[{"text":"Two honest notes. In several jurisdictions there is a statutory right to interest and to fixed compensation on late commercial payments, which applies whether or not your contract mentions it; in others there is nothing unless you wrote it. Check your own. And in practice most freelancers never charge the interest, because enforcing it damages the relationship more than the sum is worth."}]},{"t":"p","runs":[{"text":"It still belongs on the document. The point of a stated late-payment term is that it exists to be waived: “I’m not applying the interest, but the terms allow it, and I do need this settled this week” is a much stronger position than having nothing to point at."}]},{"t":"h2","id":"sending-it-so-it-arrives","runs":[{"text":"Sending it so it arrives"}]},{"t":"p","runs":[{"text":"Send a PDF, not a spreadsheet or a photo. Name the file usefully: "},{"text":"YourName-INV-0142-ClientName.pdf","code":true},{"text":"."}]},{"t":"p","runs":[{"text":"Send it to accounts payable, not only to your contact. Your contact will forward it eventually. Ask for the accounts email in the first project and use it thereafter, copying your contact so they know it has gone."}]},{"t":"p","runs":[{"text":"Send it the moment the stage is complete. Invoices sent promptly get paid promptly; a week of your delay is a week added to their cycle, and it is a week you chose."}]},{"t":"h2","id":"doing-it-for-nothing","runs":[{"text":"Doing it for nothing"}]},{"t":"p","runs":[{"text":"You do not need paid invoicing software. A template in LibreOffice Calc or Google Sheets, exported to PDF, meets every requirement above. Keep the template and change the numbers."}]},{"t":"p","runs":[{"text":"Free tools that do more, if you want them: "},{"text":"Wave","b":true},{"text":" handles invoicing and basic accounting at no cost in supported countries, "},{"text":"Invoice Ninja","b":true},{"text":" has a free tier and a self-hosted version, and "},{"text":"GnuCash","b":true},{"text":" is full double-entry accounting, free and offline, if your affairs justify it."}]},{"t":"p","runs":[{"text":"Whatever you use, keep your own copies. Every invoice you have ever issued, as PDFs, in a folder, backed up: tax authorities in most countries require you to retain records for several years, and an account you stop paying for may not give the archive back."}]},{"t":"h2","id":"the-limitation","runs":[{"text":"The limitation"}],"role":"limit"},{"t":"p","runs":[{"text":"A perfect invoice does not make a client solvent, and it does not make a slow organisation fast. Large companies pay on their cycle, and some of them treat supplier payment as free credit regardless of terms."}]},{"t":"p","runs":[{"text":"What the invoice controls is the failure you can prevent: the one caused by a missing reference, a wrong entity name, an unreadable file or an address that was never the right one. That category is a large share of late payments in small creative practices, and it is eliminated by twenty minutes of setup and one question asked at the start of the relationship."}]}],"check":{"question":[{"text":"A freelancer’s invoices to one large client are routinely paid three to five weeks after the due date, though the client is solvent and pleasant. She sends them promptly to her day-to-day contact. What is the most likely cause, and the cheapest fix?"}],"options":[{"text":[{"text":"Her payment terms are too short for an organisation of that size; setting Net 45 would align the due date with when they actually pay."}],"correct":false,"tempting":[{"text":"Aligns the paperwork with the delay rather than removing it, and a large payer’s cycle is not shortened by lengthening your terms."}]},{"text":[{"text":"The invoice is missing a late-payment interest clause, so there is no cost to the client in paying slowly and no lever to accelerate it."}],"correct":false,"tempting":[{"text":"Interest terms give you something to point at in a dispute, but they rarely change the cycle of a large payer and do not explain an otherwise cooperative client."}]},{"text":[{"text":"Large clients treat supplier payment as free credit as a matter of policy, so nothing she does to the invoice will change the outcome."}],"correct":false,"tempting":[{"text":"Real for some organisations and a genuine structural problem, but it is a conclusion to reach after checking routing, not instead of checking it."}]},{"text":[{"text":"The invoice goes to her contact rather than accounts payable, and probably misses their payment-run cut-off."}],"correct":true,"tempting":null}],"order":[2,1,0,3],"why":null},"prev":{"slug":"getting-paid","title":"The deposit is the only real protection you have","minutes":10},"next":{"slug":"chasing-late-payment","title":"An escalation ladder run on dates","minutes":9}}}