How to track van stock without a weekend stocktake

Ask most tradies what's on the van right now and the honest answer is "roughly." Stock lives in your head, which works until you're standing on a job without the part you swore was in the back, or you finish a job and realise the materials never made it onto the invoice. You don't need a warehouse system or a lost weekend counting boxes — you need a few habits that keep stock honest as a by-product of the work. Here's how.

Why "tracking it in your head" costs you

Untracked stock leaks money three ways. Materials that went on a job never get billed to the client. Counts are always wrong, so you double-buy or run out. And you never really know what a job cost in materials, only in labour. Manual stock systems — a spreadsheet, a clipboard — are often worse, because they fall out of date the first busy week and then nobody trusts them.

Step 1 — Keep a simple materials list

Start with a list of the things you actually use — the fittings, cable, pipe, consumables — with their cost. This is the backbone of everything else: it makes quoting faster, job costing accurate, and stock tracking possible. You build it once and reuse it forever.

Step 2 — Track stock by where it lives

Your stock isn't in one place — it's at the yard, in the shed, and on each van. Track it by location so "in stock" means something. Knowing there are ten of a part but they're all on the other bloke's ute is the difference between a system you trust and one you don't.

Step 3 — Deduct materials as they go onto jobs

The moment materials go onto a job, they leave your stock and land on that job's cost. If you record materials against the job as you use them, two things happen automatically: your stock count goes down correctly, and those materials appear on the client's invoice. No separate step, no forgotten fittings.

Step 4 — Restock from your supplier bills

The other half of the loop is buying. When a supplier bill comes in, those materials just arrived — so book them into stock as you process the invoice. Deduct on use, add on purchase, and your stock figure stays right without ever stopping to count.

Step 5 — Let the movements keep the count

If materials come off stock when a job's done and go back on when a bill's entered, your stock level maintains itself. The "stocktake" becomes a quick sanity check a few times a year, not a weekend ritual. Every movement recorded is also a movement you can explain later.

Common mistakes

Keeping stock only in your head.
A spreadsheet that no one updates once the week gets busy.
Not recording materials against the job (so they miss the invoice).
Tracking a total without tracking location.
Never booking purchases back into stock.

FAQ

Do I really need to track stock as a small operator?

Even a sole trader benefits — mainly so materials used on a job actually get billed, and so you know what jobs cost. You don't need a full warehouse system; a simple materials list and recording use against jobs covers most of the value.

How do I keep stock counts accurate without stocktaking?

Let the count maintain itself: deduct materials when they go onto a job, add them when a supplier bill comes in. If both sides are recorded, the number stays right on its own.

How does stock tracking help my margins?

It makes sure materials get billed to the client, gives you true job costs (materials + labour), and stops the double-buying and last-minute merchant runs that eat time and money.

Let the work keep your stock honest

You can run stock on a disciplined list and good habits — or let it maintain itself, with stock coming off when a job's completed and back on when you scan a supplier bill.

→ See how materials & inventory in My Apprentice stays up to date on its own.