How to keep your books without an accounting degree

Most small businesses keep their books the same way: a folder of receipts, a bank app, and a spreadsheet that is accurate until roughly March. It survives until the first moment somebody asks a question the spreadsheet cannot answer — how much did we actually make last quarter, what is owed to us, can we afford this hire.

Proper bookkeeping answers those in seconds. It is also far less mysterious than its vocabulary suggests.

The one rule

Every transaction touches at least two accounts, and the two sides must balance. Money does not appear — it moves from somewhere to somewhere. A client pays an invoice: cash goes up, money owed to you goes down. You buy a laptop: equipment goes up, cash goes down.

That is double-entry bookkeeping in full. “Debit” and “credit” are just the names for the two sides, not for good and bad news — and the check that debits equal credits is what catches the typo that a single-column spreadsheet swallows silently.

Set it up once

1. Write down your chart of accounts — the categories money moves between, grouped as assets, liabilities, equity, income and expenses. Twenty accounts is plenty at the start; you can always add more.
2. Set the fiscal year, the currency and your tax rates so reports and totals come out right from day one.
3. Open a business bank account if you have not. Mixing personal and business transactions is the single biggest source of bookkeeping pain later.
4. Decide your reporting basis — cash (record it when money moves) or accrual (record it when it is earned or owed) — and stay on it. Switching mid-year makes every comparison meaningless.
5. Set a weekly slot in the calendar. Thirty minutes on a Friday beats a lost weekend in April.

The weekly half hour

• Enter what happened: each transaction as a journal entry with a memo you will understand in a year — “Client payment — Invoice #1002” beats “deposit”.
• Reconcile the bank: tick off every line that matches your records against the statement balance. If it does not match, the difference is almost always one duplicated or missing entry.
• Memorise the repeats. Rent, subscriptions and payroll do not need retyping every month — set them up once as recurring entries.
• Chase what is owed. An aging view of receivables and payables tells you who is late and by how much, which is the difference between a cash-flow problem and a collection problem.

The four reports worth reading

• Income statement — revenue minus expenses over a period. Are we profitable?
• Balance sheet — what you own, what you owe, and what is left. Are we solvent?
• Cash flow — money in and out across your accounts. Can we pay next month's bills?
• Trial balance — the arithmetic check that debits equal credits. Boring, and the first thing to look at when a number seems wrong.

A couple of ratios turn those into judgement: the current ratio (current assets ÷ current liabilities) says whether short-term bills are covered, gross margin ((revenue − cost of goods) ÷ revenue) says whether the thing you sell makes money before overheads, and net margin says whether it does afterwards.

When to bring in a professional

Keeping the books is bookkeeping; deciding what is deductible, how to structure the company and what to file is accounting. Do the first yourself — it is a habit, and it keeps you close to the numbers. Bring in an accountant for the year-end, for anything tax-shaped, and the moment you hire someone or cross a VAT threshold. Clean books make that engagement cheap; a shoebox makes it expensive.

Bookkeeping is not hard, it is just relentless. Twenty accounts, one rule, thirty minutes a week — and the answer to “how are we doing?” stops being a feeling.