Vendor Payment Terms and Your Cash Flow

Why this matters

Cash flow is the timing of money in and out, and vendor terms control half of it. When you pay your suppliers relative to when your customers pay you decides whether you are constantly scrambling for cash or running comfortably. A shop with good vendor terms can buy materials, do the work, and collect from the customer before the supplier bill is even due. A shop on cash-only terms floats every job out of its own pocket. The terms are negotiable, and they matter more than most owners realize.

The terms you will see

Vendors express payment terms in a few standard ways:

• Due on receipt / COD. You pay when you get the goods. No float. Common for new accounts.
• Net terms. You pay a set number of days after the invoice date (net 15, net 30, and so on). The number is how many days of float you get.
• Early-pay discount. A term like "2/10 net 30" means you can take a small discount if you pay within ten days, otherwise the full amount is due in thirty. Phrased as discount-percent / discount-days net full-days.
• Statement / end-of-month. All invoices for a period are billed together and due on a set date.

The single most useful term for cash flow is net terms, because it lets your customer's payment arrive before your vendor's bill comes due.

The float window is the whole game

Picture the timeline of one job:

1. You buy materials from the supplier.
2. You do the work.
3. You invoice the customer.
4. The customer pays you.
5. Your supplier bill comes due.

If steps 1 through 4 finish before step 5, you never funded the job out of pocket. The customer's money paid the supplier. That gap, between when you owe the vendor and when the customer pays you, is your float window. Net terms widen it. Cash-only closes it. Your job is to make your vendor terms at least as long as your customer collection time.

How to earn better terms

Vendors extend terms to accounts they trust. You build that trust:

• Pay clean and on time, every time. Nothing earns net terms faster than a spotless payment record.
• Build history. New accounts start tight. Six months of clean payment is your case for opening up the terms.
• Ask the right person. The counter cannot grant terms. An account manager or credit department can.
• Bring volume. Consolidating your buying gives you leverage to ask for both better price and better terms. See related: Negotiating Better Supplier Terms.

Early-pay discount: take it or keep the float?

A discount for paying early is real money, but so is the float. Decide by your cash position:

• If you have the cash and the discount is meaningful, take it. An early-pay discount is usually a better return than letting that cash sit idle.
• If cash is tight, keeping the float can matter more than the discount. Paying early to save a little but then scrambling for payroll is a bad trade.

There is no universal answer. Know your cash position and choose deliberately rather than defaulting either way.

Do not abuse terms

Net terms are a privilege built on trust. Treating them as free credit you stretch past the due date is how you lose them:

• Late payment damages the relationship and the after-hours saves that come with it.
• Chronic lateness can drop you back to COD, which slams your float window shut right when you relied on it.
• If you genuinely cannot pay on time, call before the due date. A vendor will work with an account that communicates and burn an account that goes silent.

Match your terms to your collection reality

The trap is mismatched timing: long customer collection and short vendor terms. If your customers routinely take a while to pay and your vendor wants payment fast, you fund every job yourself. Fix it from both ends: shorten how long customers take (deposits, prompt invoicing, faster collection) and lengthen vendor terms. The closer those two timelines, the less of your own cash is tied up in work you have already done.

References

• U.S. Small Business Administration: cash-flow and working-capital management guidance
• Trade-standard distributor net-terms and early-pay-discount practice
• See related: Negotiating Better Supplier Terms
• See related: Responding to a Supplier Price Increase