You do not need accounting software to send a proper invoice. You need six things on it, and a way to remember who has not paid.
An invoice is a document that says who owes what, for what, and how to pay. For a home business selling to individuals, that is genuinely all it needs to be:
That is a valid invoice. Anything beyond it is either legally required for your particular situation or it is decoration.
Most people selling from home are already talking to their customers on WhatsApp. Sending a PDF attachment to somebody who is chatting to you in WhatsApp adds a step for both of you, and PDFs are awkward to read on a phone.
A plain text message with the same six things is a real invoice, it arrives instantly, and your customer can read it without opening anything. If they need something that looks more formal, an image of the invoice is usually enough — it can be saved, forwarded and printed.
This is the part that actually costs people money, and it is rarely a memory problem. It is a record problem.
The habit that works is to make the invoice the record. When you agree a sale, write the invoice — even if payment is coming later. Then you have a list of what is owed rather than a vague sense that “a couple of people still need to pay”.
Mark each one paid the moment the money lands. What is left unmarked is your list of who to follow up, and it is accurate because it was never built from memory.
The question to be able to answer at any moment: how much is owed to me right now, and by whom? If that takes more than a few seconds, the record is not doing its job.
Worth being clear about, because it changes your numbers. Goods promised to somebody are no longer available to sell to somebody else — so they should come out of your stock as soon as the invoice exists.
But the money is not yours until it arrives. So an unpaid invoice reduces your stock and appears in what you are owed, and it should only count towards your sales and profit once it is actually paid. Counting it early makes a month look better than it was, and the correction always arrives at a worse time.
For casual sales to individuals, usually not — a receipt or a message is fine. Requirements depend on your own registration and tax situation, so check with an accountant or your revenue authority rather than assuming. Keeping records is a good idea regardless.
If it contains who owes what, for what, the date, the total and how to pay, it is doing the job of an invoice. The format matters far less than the information and the fact that both of you have a copy.
Not until it is paid. It should reduce your available stock straight away, because those goods are promised, but the money should only count as sales and profit once it actually arrives.
Keep the record and stop counting it as money coming. The value of the record is that you know exactly what happened and how often, which tells you whether to ask for payment up front from that customer next time.
Little-Till is a small web app for people who sell what they make. You record a batch and what it cost, record your sales, and it keeps the cost per item, what is left in stock and your real profit up to date. It is built for a phone, works when the signal drops, and shows amounts in Rand.
R49 a month or R495 a year, with 14 days free and no card needed to start.
Try Little-Till free