For a small brand, inventory isn't stuff on a shelf — it's your cash, converted into a form you can't spend until someone buys it. That reframe is the whole discipline. Order too little and you stock out; order too much and you've frozen the money you needed for ads, payroll, or the next product. Both mistakes are expensive, and small brands make them constantly because they plan inventory on gut feel instead of two simple numbers.
The Two Ways Inventory Kills You
- Stockouts cost more than the missed sales. You lose the ad spend that drove demand to an out-of-stock page, you can lose search and marketplace ranking, and some of those customers never come back.
- Overstock freezes cash. It also invites markdowns to move it, and racks up storage — a slow SKU you over-ordered is a loan you made to yourself at a bad rate.
The One Formula That Prevents Both
The reorder point is when you place your next order, and it's just:
(average daily sales × lead time in days) + safety stock
Lead time is the piece founders underestimate — it's not shipping, it's production plus freight plus receiving. If your factory needs 30 days and ocean freight adds 30 more, your lead time is 60+ days, and you have to reorder while you still have two months of stock on hand. This is why freight is a cash-timing problem, not just a cost.
Safety Stock Is Insurance, Not Waste
Safety stock is the buffer for the two things you can't predict: a demand spike (a post goes viral) and a supplier delay (the factory slips two weeks). Enough to cover a realistic bad case, not so much that you're back to overstock. It's the cheapest insurance you'll buy.
Know Your Velocity, Per SKU
"How's inventory?" is the wrong question. How fast does each SKU sell is the right one. Your hero SKU and your slow SKU need completely different reorder timing, and averaging them hides both a looming stockout and a pile of dead stock.
The Cash Cycle Is the Real Constraint
You pay the factory before customers pay you — often months before, once you count production and freight. That gap is your working-capital need, and it's why "buy more to hit the price break" is so dangerous for a small brand: the discount is real, but it deepens the hole you're financing. Order to velocity and lead time, not to a per-unit discount.
Inventory planning isn't a spreadsheet chore — it's cash management. Reorder off real velocity and honest lead time, hold a sane safety buffer, and treat every over-order as cash you've chosen to lock up.
How do you decide when to reorder today — a low-stock alert, a gut check, or an actual reorder point with lead time built in? We'd like to hear how you're managing it.