How detailed do the accounts need to be? One machine, or every part?

Hook

Boss, here is the question accountants argue about most. You buy a machine — do you want to know what the whole machine cost, or what every part cost? A car you can drive, a computer you assembled — how deep should the books go? Today we take on something a lot of people assume is settled, that finer is always better: how detailed do the accounts actually need to be?

First ask: did this money buy one thing or a pile of things

Accounting's first question is not how much. It is this — did this money buy one thing, or a pile of things? The test is a single sentence: it counts as one asset once it reaches the state of being usable. A car: body, engine, tyres, registration — take any one away and it does not move, so together they are one car, not four things. An assembled computer: the tower, the memory, the drive — put them together and it boots, and that is one computer. The other way round: a monitor and a keyboard can be used on their own and replaced on their own. Are they big enough on their own? If they are, each becomes an item in its own right; if not, they go with the tower. The boundary of one asset is whether it can be used independently.

Some costs have no invoice of their own

Here is something bosses routinely miss: everything spent getting it usable belongs in the cost. Delivery, import duty, installation, commissioning, the engineer who comes in to teach your people how to run it — all of that goes into the cost of the machine, not into this month's expenses. The awkward part is that these costs are not invoiced item by item. One shipment brings in five machines and there is a single delivery charge. The installer comes out once, fits three of them, and charges once. So what do you do? You apportion it — by value, by weight, by unit count. Choose a sensible basis, write it into the schedule (the fortieth lesson), and use the same ruler all year and across the whole company. That is the truth about detail in accounts: not every ringgit has an invoice of its own. Some costs, by their nature, can only be allocated sensibly.

When you genuinely split it out

So when do you really break one thing into parts? There is only one rule: when some part has a life different from the main asset. A lorry runs ten years but the engine goes in for a major overhaul every three. A computer runs five years but the graphics card gets changed at two. A shop fit-out lasts ten years but the air-conditioning is finished at five. Different lives, so you record them separately — the trade calls it a component. The benefit is very real: the day you change the engine, the old one comes off the books and the new one goes on, and you are not left carrying an engine that was scrapped years ago. What happens if you do not? The assets on the books are overstated, the depreciation is wrong, and when you sell the lorry, file the tax return or sit down with the bank, none of your figures hold up. The other way round — parts with the same life do not need splitting. Splitting them is just extra work with no extra decision at the end of it.

That thirty-line receipt: Mr DIY, AEON, IKEA

Now the most practical receipt of all. One trip to Mr DIY, AEON or IKEA and the receipt has thirty lines on it: screws, cloths, light bulbs, an office desk, a bookshelf. Do you key thirty lines into the books? No. The right way is to ask two questions. First: is there anything on this receipt that is capital? That desk, that bookshelf — they will last years and they are big enough, so pick them out and capitalise them; the screws, the cloths and the bulbs are this period's expense. Capital first, expense second — that is the first cut. Second: how do the remaining expenses get classified? Two ways of cutting it. By nature: stationery, cleaning supplies, repair materials, utilities. By function: selling costs, administrative costs, cost of production. The honest answer for a small business is to get by nature solid first — get the chart of accounts (the fourth lesson) right and it carries you through tax, comparison and audit. If you want to see which department spent it or which branch spent it, do not open another string of accounts — use the dimensions from the fourth lesson. One transaction, two tags; one set of data, two ways of looking at it.

To close

Back to where we started: how detailed should the accounts be? The answer is not "as fine as possible". It is: fine enough to make a decision. Detail that lets you make a decision is worth having — gross margin by item (the ninth lesson), costing by job (the tenth lesson), whether to replace the engine or replace the lorry. That kind of detail earns money. Detail that cannot make a decision is only cost: thirty lines of screws spread across ten accounts, and nobody looks at a single one of them at year end. Detail should feed decisions, not workload. How deep should your books go? Grab a coffee first and talk about your business. For the accounting, come to LTT. I am LTT, helping SME bosses get their accounts straight. Follow us, and see you next time.