Cash, Inventory, & Working Capital: The “Big 3” Numbers That Matter

You don’t need 47 KPIs to tell if your business is healthy.
You really just need three:

• Cash
• Inventory
• Working Capital

They’re the heartbeat of every business — and when they’re off, you feel it.

Let’s Start with the Obvious: Cash

When cash is tight, you know it.
It’s the chokehold feeling — payroll’s coming, bills are stacked, and your “profits” are stuck somewhere between customers and shelves.

When cash is too heavy (yes, that happens), it means you’ve got a pile of lazy dollars just sitting around doing nothing. Nice problem to have, sure, but not if it means missed growth or return.

The goal isn’t to hoard cash — it’s to put it to work.

So… How Much Working Capital Do You Actually Need?

Working capital is just Current Assets – Current Liabilities, but that definition’s useless without a target.

Here’s the rule of thumb:

• Bare minimum (aggressive): Enough for one payroll.
• Comfort zone (healthy): Two months of operating expenses.
• Overkill (super conservative): One payroll + two months of OpEx.

You don’t need to hit it overnight — build toward it like a savings plan.

What’s in the Mix

Your working capital isn’t just cash. It’s a cocktail of all your short-term assets and debts, and a few bad ingredients can throw the whole thing off.

• Cash: Always good.
• Accounts Receivable: Not so good if customers are taking 90+ days to pay.
• Inventory: Great if it moves. Dead weight if it sits for three months or more.
• Line of Credit: The unused part counts — that’s your oxygen.

Subtract out:

• Accounts Payable (bills you owe)
• Debt payments due in the next year
• Accrued bonuses or commissions (not vacation — that’s fake liability math)
• Deferred revenue (money you’ve taken but haven’t earned yet)

Do the math honestly and you’ll finally understand why you feel broke even when QuickBooks says you’re fine.

The Big 3 Dashboard

You can’t manage what you don’t measure — so track these like your business depends on it (because it does):

When these three stay in range, everything else feels easier — payroll, taxes, opportunity, even sleep.

A Few Fast Levers

If cash flow feels tight, start here:

• Collect faster (no one’s offended by a polite nudge).
• Stop buying “just in case” inventory.
• Pay vendors strategically — not late, but smart.
• Stretch loan terms if payments are suffocating you.
• Delay distributions until your operating profit can comfortably handle them.

The AR/AP Balancing Act

Want an instant cash boost?

• Tighten A/R days from 90 → 30. That’s a one-time hit of cash right back in your account.
• Stretch A/P from 30 → 60 (without getting blacklisted). That’s another one-time boost.
• If a vendor offers a discount for paying early, take it — then pay with Amex to buy 30 more days.

That’s free money. Don’t leave it there.

The Cash Flow Sweet Spot

The dream is simple:
You get paid right around when you need to pay others.

No drama. No “which bill do we cover first?” moments. Just rhythm.

That’s what a healthy business feels like — smooth, predictable, boring (in a good way).

The 10-Minute Monthly Check

• Do we have 1 payroll to 2 months of OpEx in the tank?
• Are A/R and inventory days steady or improving?
• Are we taking early-pay discounts when it makes sense?
• Is debt structured to match cash flow?
• Is our operating profit coverage over 1.25x?

If you can answer yes to those five questions, your business is in good shape — even if the economy isn’t.

Bottom line:
Forget the complicated dashboards.
Master these three numbers, and you’ll have what every business owner wants — control, confidence, and cash that doesn’t keep you up at night.