The Records You Will Need Later

Most people selling from home keep records the way they keep receipts in a coat pocket. It works until somebody asks a question, and the person who usually asks is either an accountant or yourself in January, trying to remember what a payment in March was for.

Write down what a payment was, not just that it happened

A line in a bank statement tells you an amount and a date. It does not tell you which order it was, whether postage came out of it, or whether you refunded half of it later. Thirty seconds of context at the time saves an hour of reconstruction months later, and reconstruction is where mistakes creep in.

Separate the money if you can

A second account used only for the shop is the single change that makes everything else easier. It does not need to be a business account to be useful. What it does is stop your weekly food shop and your postage costs from living in the same list.

Keep the boring evidence

Postage receipts, packaging costs, a proportion of your phone bill if you use it for the shop. People remember to record income and forget the costs that sit against it, which usually means paying more tax than they owe rather than less.

Do it weekly, badly

A rough note made every Sunday beats a perfect system you abandon in three weeks. The failure mode is not untidy records, it is no records, and that always starts with deciding to set up something proper next month.

Know what you would need if asked

You do not need to become an expert. You need to be able to answer what you sold, what it cost you, and what is left. If your notes cannot answer those three, they are not really records yet.

None of this is interesting and all of it is cheap. It is also the difference between a shop that can tell you whether it is working and one that only feels like it is.