When cash feels tight, the instinct is often to blame sales, marketing, or “the economy.” But in a lot of small and mid-sized businesses, the real culprit is quieter: inventory that looked like an asset on paper and turned into a cash sponge in real life.
I grew up watching this up close in my family’s supply business. One season of ordering a little too early, or a few SKUs that stopped moving, and suddenly everyone was stressed about payroll even though the warehouse was full. If that sounds familiar, take a breath. In most cases, you do not need a loan as your first move. You need a working-capital plan that gets your cash unstuck.
Below are six practical fixes you can implement in a sensible order, from easiest and fastest to more structural changes. I will also give you simple formulas to flag problem SKUs so you stop guessing.
First: find the cash traps (quick SKU formulas)
Before you change purchasing rules or renegotiate with suppliers, identify which items are stealing your working capital. Pull a SKU-level export from your POS, ERP, Shopify, QuickBooks Commerce, Cin7, NetSuite, or even a spreadsheet. You want, at minimum: SKU, on-hand units, unit cost, last sale date, trailing 90 or 180 days units sold, and lead time.
1) Inventory dollars on hand
Inventory $ on hand = On-hand units × Unit cost
Sort high to low. Your top 10 SKUs by dollars on hand are where cash is most likely trapped, even if they are not “slow.”
2) Days of supply (units) by SKU
Days of supply (units) = On-hand units ÷ Average daily units sold
Where Average daily units sold can be:
- Trailing 90-day avg daily = Units sold last 90 days ÷ 90
- Or Trailing 180-day avg daily if demand is lumpy
This is a SKU-level operational proxy. In financial reporting, “DIO” is often cost-based (using COGS and average inventory). Use this unit-based version to spot traps fast, then reconcile to finance when you are ready.
Important edge cases:
- If average daily units sold = 0, treat days of supply as “infinite” and push the SKU into your dead-stock process.
- If sales are negative (returns exceed sales), investigate data quality or customer issues before you reorder anything.
If a SKU has 240 days of supply but you sell it steadily, it is still tying up cash that could fund faster-moving items or payroll.
3) Weeks of supply
Weeks of supply = On-hand units ÷ Average weekly units sold
Same idea, just easier for some teams to work with.
4) “Dead stock” flag
A simple rule: Dead stock = No sales in X days (choose X based on your business). Common thresholds:
- Retail and DTC: 90 to 120 days
- Seasonal businesses: end of season plus a buffer
- B2B parts: 180 to 365 days, depending on service obligations
Now you have a map of what to fix first.
Fix 1: Cycle count and aging audit
If you only do annual physical counts, you are usually discovering problems after the cash is already gone. This audit is a simple combo of cycle counting (accuracy) plus an aging review (how long items sit) so you can pinpoint what is tying up cash and why.
What to do this week
- Pick 20 SKUs that represent the most dollars on hand (not the most units).
- For each SKU, record: days since last sale, days of supply, lead time, minimum order quantity (MOQ), and storage footprint (pallets, bins, square feet).
- Tag the reason it is high: over-forecasting, vendor MOQ, seasonality, substitution, discontinued product, inaccurate counts, long lead time, or pricing mismatch.
This does two things: it shows you where cash is trapped, and it exposes process issues (forecasting, purchasing rules, and data quality) that create trapped cash in the first place.
Fix 2: Reorder points and safety stock
Many businesses set reorder points once and never revisit them. Then demand shifts, lead times change, or suppliers start enforcing MOQs, and your system keeps reordering like it is 2019.
Reorder point basics
Reorder Point (ROP) = (Average daily demand × Lead time in days) + Safety stock
If your ROP is too high, you are buying early and holding cash. If it is too low, you are stocking out and paying expedite fees, losing sales, and creating customer service fires.
Safety stock in plain English
Safety stock is your cushion for demand swings and lead-time surprises. You can calculate it with more advanced stats, but most small businesses do fine starting with a rules-based approach:
- Stable demand + reliable supplier: 1 to 2 weeks of demand
- Volatile demand or unreliable lead times: 3 to 6 weeks of demand
- Very slow movers: consider make-to-order, special order, or a smaller service-level commitment
Separate A, B, and C items
- A items: highest dollars and or highest velocity. Tight review, frequent ordering, protect fill rate.
- B items: mid-range. Review monthly.
- C items: low velocity or low margin. Reduce variety, order less often, consider special order.
The fastest working-capital win often comes from tightening safety stock on B and C items where “just in case” ordering has quietly piled up.
Fix 3: Markdown slow stock (cash first)
Markdowns can feel like admitting defeat, so founders avoid them. But the math is blunt: a product that is not moving is not an “asset,” it is a cost center taking up cash, space, attention, and sometimes insurance and shrink risk.
A simple decision rule
Ask: Will this SKU realistically sell through at full price within the next 60 to 90 days? If not, price is a tool, not a moral failing.
Markdown ladder
- Step 1: 10 to 15% off for 2 weeks (test demand response)
- Step 2: 20 to 30% off for 2 to 4 weeks (target cash conversion)
- Step 3: bundle with a high-velocity item (protect margin perception)
- Step 4: clearance, liquidation, or donate (if storage cost and distraction are worse than the recovery value)
Quick formula: cash trapped
Cash trapped = On-hand units × Unit cost
Recovery varies by category and channel, but as a rough example, if you can recover 60 to 80% of cost on items that otherwise will sit for another year, it can be a strong working-capital trade. The right comparison is not “full margin vs discount.” It is “some cash now” vs “carrying cost, risk, and zero cash.”
Quick check: carrying cost
If you want a simple way to pressure-test holding vs clearing, estimate annual carrying cost as a percentage of inventory value.
Annual carrying cost ($) ≈ Inventory value × Carrying cost %
Many small businesses use a rough range like 15 to 30% per year once you add storage, handling, shrink, insurance, damage, and obsolescence. You do not need perfection. You just need a number that makes “holding forever” feel expensive, because it is.
Fix 4: Supplier terms
Inventory ties up cash in part because you pay for it long before it turns into revenue. Better supplier terms can narrow that gap.
Terms to ask for
- Net terms: move from prepaid or Net 15 to Net 30 or Net 45
- Split shipments: ship half now, half later at the same unit price
- Lower MOQs: especially for B and C items
- Return or swap allowances: seasonal or style-based inventory often qualifies
- Early pay discount math check: only take 2/10 Net 30 style discounts if cash is truly abundant
What to say
“We are tightening our inventory position this quarter. I want to keep growing with you, and the best way is to align ordering with real demand. Can we move to Net 30 and split the next two POs into smaller deliveries?”
Suppliers often prefer a steady customer with predictable purchasing over a customer who panics, cancels, or disappears. Not always, but often enough that it is worth asking.
How terms affect the cash gap
Cash gap (rough) = Days of supply + Days Sales Outstanding (DSO) − Days Payables Outstanding (DPO)
You do not need a perfect calculation to benefit. If you reduce days of supply by 20 days and increase DPO by 15 days, you improved the cash gap by 35 days. That is meaningful.
Fix 5: Consignment and VMI
If you have products that customers want to see in person, but you hate paying for them months in advance, there are two supplier models worth exploring. They sound similar, but they are not the same.
Option A: Consignment (pay on sale)
You display and sell the product, but you do not pay the supplier until it sells (or you pay on a scheduled settlement). You are essentially renting shelf space rather than buying inventory upfront.
Option B: Vendor-managed inventory (VMI)
With VMI, the vendor helps plan and replenish inventory based on agreed rules and your sales data. Ownership and payment terms vary. Sometimes it is still standard purchasing (you own it on receipt). Sometimes it looks closer to consignment. The point is that the vendor is helping you avoid overbuying and stockouts.
Where these fit best
- Higher-priced items with uncertain demand
- New product lines you are testing
- Items with long lead times where stockouts hurt, but ownership risk is high
Watch-outs to put in writing
- Who owns shrink, damage, and obsolescence
- How often you report sales and settle
- Who sets retail pricing and markdown rules
- How unsold goods are returned and at whose cost
Fix 6: JIT basics
“Just in time” can sound like a big-company philosophy, but the basics are accessible. The goal is not to run on fumes. The goal is to stop treating the warehouse like a savings account.
JIT-lite moves
- Shorten your planning horizon: reorder weekly instead of monthly for A items
- Reduce batch sizes: order smaller quantities more often where freight and admin allow
- Build a two-supplier strategy: one primary, one backup for critical items
- Use a pull signal: reorder based on actual sales and minimum stock thresholds
What makes JIT fail
- Unreliable lead times: keep safety stock and measure supplier performance
- MOQs that force overbuying: renegotiate, substitute, or rationalize SKUs
- Inaccurate counts: cycle counting is a requirement if you want this to work
If you are nervous, pilot JIT on a handful of A items that have steady demand and trustworthy suppliers. You will learn quickly without putting customer service at risk.
One quick SKU example
Here is what this looks like in the real world.
- SKU: Widget A
- On-hand units: 500
- Unit cost: $12
- Units sold last 90 days: 90
Average daily units sold = 90 ÷ 90 = 1 unit per day
Days of supply = 500 ÷ 1 = 500 days
Cash trapped = 500 × $12 = $6,000
Decision: this is not a “reorder point tweak” problem. It is a buying and assortment problem. You tighten purchasing immediately (Fix 2), then run a markdown or bundle plan to convert a portion of that $6,000 back into usable cash (Fix 3). If average daily units sold is actually 0, you skip the debate and move it into dead-stock actions.
Simple metrics for a small dashboard
You want to free cash without creating stockouts. A few basic KPIs keep you honest:
- Total inventory $ on hand: trend over time
- Days of supply (units): overall and for top categories
- Dead stock $ and % of inventory: value of items past your no-sale threshold
- Service level or fill rate: are customers getting what they want
- Stockouts on A items: count and root cause
Weekly cadence
The biggest working-capital improvements usually come from small, consistent habits.
- Weekly: review top 20 SKUs by inventory dollars on hand and any SKUs with no sales in 30 days
- Monthly: reset reorder points for A and B items, review supplier lead times, and mark down items crossing your slow-stock threshold
- Quarterly: SKU rationalization meeting. Decide what to discontinue, what to special-order, and what deserves deeper stock
Working capital gets healthier when inventory decisions stop being emotional and start being routine.
FAQ
How do I know if inventory is why I feel cash-poor?
If sales are decent but you are constantly stressed about payroll, taxes, or vendor bills, look at the trend in inventory dollars on hand. If inventory is rising faster than revenue, cash is likely getting absorbed by stock. Days of supply creeping up is another strong signal.
What is a “bad” DIO or days of supply?
It depends on your industry, margin, shelf life, and lead times. But within a single business, a practical approach is relative: compare SKUs to each other. If your typical item sits 45 days and one category sits 180, that category is a working-capital priority.
Should I ever take a loan to buy inventory?
Sometimes, yes. For example, if you have proven demand, healthy gross margins, and a predictable sell-through timeline. But if your current issue is slow-moving or mismanaged inventory, borrowing can amplify the pain. Fix the system first, then finance growth with clearer numbers.
Your next step
If you want a clean, low-drama way to start: pull your top 50 SKUs by inventory dollars on hand, calculate days of supply for each, and circle the items with the highest days of supply and the most cash trapped. Then apply Fix 2 (reorder points) to prevent repeat overbuying and Fix 3 (markdown plan) to turn stuck items into usable cash.
That is how you improve working capital without a loan: not one heroic move, but six practical ones that keep your business breathing.
