Cash flow and ordering: buying without squeezing the till

How do you keep shelves full without draining the bank account? Inventory cash flow is about timing: when you pay for stock compared with when you sell it. Every dollar of inventory sitting on a shelf is a dollar you can't use for rent, payroll, or the electric bill. Good ordering keeps enough stock to sell without tying up more cash than you need.

It's one of the biggest money questions for a small store, and it's mostly about habits.

How does inventory tie up cash?

When you buy stock, cash leaves your account. It comes back only when the stock sells.

If you pay on delivery and sell the stock in a week, the cash is tied up for a week.

If you pay on delivery and the stock takes two months to sell, the cash is tied up for two months.

If the supplier gives you 14 days to pay and the stock sells in a week, you might get the cash back before the bill is due.

The longer products sit, the more cash they hold hostage.

A worked example

Here's a hypothetical store with $12,000 in inventory at cost.

About $7,000 of it is fast sellers that turn over roughly every two weeks.

About $3,000 is medium sellers that turn over roughly monthly.

About $2,000 is slow sellers that sit for three months or more.

The fast sellers generate cash quickly. The slow sellers hold $2,000 that isn't coming back soon.

Now say the owner cuts slow-seller stock in half by trimming varieties and ordering smaller amounts. That frees about $1,000. It's not a fortune, but it's $1,000 available for a slow month, a repair, or a better deal on a fast seller.

What habits protect cash flow?

A few practical habits.

Order based on sales data. Use your POS reports to buy what actually sells.

Order smaller amounts more often for items with steady demand, if your supplier allows it.

Keep safety stock for key items, but not for everything.

Watch new products. Start with small orders.

Clear dead stock with markdowns or returns, so cash comes back.

Be careful with bulk deals. A discount only helps if you'll sell the extra stock reasonably soon.

Know your supplier payment terms. Pay on time, and use the terms you have. If a supplier offers 14 days, you don't need to pay on delivery.

How do supplies fit in?

Supplies like receipt paper, bags, and cleaning items don't sell, but they still cost cash. Buying six months of bags at once might feel efficient, but it ties up money and space.

Buy supplies based on usage. Track how fast you go through them and order to cover a few weeks plus a buffer.

For supplies, browse the NRS Marketplace, which offers store supplies, paper rolls, and more for NRS merchants. The store supplies category covers bags and counter items.

How do card payments affect cash flow?

Card sales settle into your bank account a business day or so after the sale, depending on your processor. Cash sales are in the drawer immediately but need to be deposited.

Knowing when card deposits arrive helps you plan when to pay suppliers. If you're weighing card processing options, you can learn about NRS Pay.

The U.S. Small Business Administration has resources on managing cash flow and planning for slow seasons.

A simple monthly check pulls it together. Add up what you spent on inventory, compare it with what you sold at cost, and see whether stock on hand went up or down. If inventory keeps growing while sales stay flat, cash is getting stuck on shelves, and it's time to trim slow items and tighten your orders.