Supplier Payment Terms Checklist for Small Businesses

The 30 days you don't have to ask twice for — the net-30 ask, the early-pay discount rule, the weekly payment run, and the four traps that leak working capital.

Every business negotiates hard for the money owed to it and then takes whatever terms the supplier printed on the first invoice. Payment terms are not the supplier's gift; they are a standard part of the price of the relationship, and defaulting to cash-on-delivery when the industry runs net-30 is an interest-free loan handed backward. The overdue-invoice ladder (overdue invoice letters) chases money that is already yours. This page is the other half of the same cash-flow statement: the terms that decide when money leaves, negotiated once, written down, and run on a schedule instead of a mood.

1. The quiet half of cash flow — terms are a price, not a favour

A business with $40,000 of monthly supplier spend sitting on 7-day terms instead of net-30 has handed its suppliers a permanent, interest-free $30,000 working-capital loan — roughly three weeks of float that belongs in the account the cash runway checklist is measuring. Nobody notices the leak because it never appears as a line item; it appears as the reason the tax bill went on the credit card. Terms behave like every other price in the business: they are set at the start of the relationship, they move with volume, and they are reviewed when the numbers change. The business that asks for net-30 at onboarding pays the same invoice 23 days later than the business that didn't ask — same goods, same supplier, same price, three extra weeks of cash. The ask costs one sentence. Not asking costs the float forever.

2. The terms ladder — four asks, in order

Ask one: the net-30 standard, at onboarding

The ask happens when the account is opened, never at invoice time — before the first order there is nothing to argue about. One sentence: "We pay all suppliers on a consolidated weekly run against net-30 terms — can you confirm that works for your side?" It states a process, not a plea, and it names the mechanics (consolidated weekly run) that make the request normal. Most suppliers say yes because net-30 is the industry default; the businesses on COD are the ones who never said the sentence.

Ask two: the extension for stock that turns slowly

Inventory that sits for two months before it sells is stock the business financed alone. For slow-turning lines the ask extends with the turn: net-45 or net-60, tied to the order size, framed the same way — "these lines turn in about nine weeks; net-45 keeps us ordering monthly instead of quarterly." Suppliers prefer a bigger, regular, paying customer over a fast-paying small one; the terms ask is how the business tells them it intends to be the first kind.

Ask three: capture the early-pay discount — automatically

The discount term 2/10 net 30 (2% off for paying within 10 days) is the single best return available to a small business with cash in the bank: 2% earned in 20 days is roughly a 36% annualized return, and no invoice ladder beats it. The rule is automatic: the discount is the only reason to pay early. If the terms carry a discount and the cash exists, the payment run takes it. If there is no discount, paying before the due date is donating the float.

Ask four: the weekly payment run

One payment run, same day each week — Friday morning is the house standard — paying everything due within the next seven days, in due-date order, from one schedule. Ad-hoc payments are how duplicate payments, missed early-pay discounts, and "the loudest supplier gets paid first" happen. The run is a calendar event with one owner, and it feeds the month-end close the same way the invoice ladder feeds the receivables read: one place, reconciled, done.

3. The rules

• Terms are negotiated once, at onboarding. The first invoice is too late; by then the business has already taught the supplier its habits.
• The PO carries the terms. Purchase order, account record, and calendar entry all state "net-30" — memory is not a document, and a term that lives in one person's head terminates with their annual leave.
• Pay on the due date, not before. The float between invoice and due date is the cheapest working capital the business owns; spending it early is spending it for free.
• Never pay late silently. One call on the morning a payment will miss — reason, new date, said before they ask — keeps the account open and the relationship priced. Silence is what turns a schedule slip into a stopped supply line.
• One run, one place, one person. A payment run split across three people and four bank logins is how BEC payment fraud finds its opening; consolidation is both a cash-flow tool and a control.

4. The four traps

• Paying COD from habit after terms exist. The supplier granted net-30 in March; in September the business is still paying on delivery because "that's how we've always paid them." Terms not used are terms withdrawn.
• The early-payment reflex without a discount. Paying a net-30 invoice on day 12 because it was "sitting there" converts working capital into supplier comfort for zero return — the discount rule exists precisely to separate the two cases.
• Asking for credit while paying cash. The business that requests net-30 and then pays the same supplier's invoices same-day sends contradictory data to the supplier's credit team; pick the process and run it consistently, or the answer to the next terms request is "your history shows cash."
• The never-reviewed term. Prices rise 6% and the terms stay frozen at the day the account opened. Five minutes per supplier, quarterly — in the same sitting as the month-end close — reads spend and terms side by side and flags any supplier whose spend has outgrown their terms.

Worked example: the landscaping business and the two suppliers

A two-crew landscaping business bought roughly $6,000 a month from its nursery and about $2,000 a month from an equipment-hire yard. The nursery had put it on 7-day terms in 2016 and nobody had asked since; the hire yard was paid cash-on-delivery by pure habit, and the owner made around eleven separate supplier payments a month, each one interrupting a job. The change was one morning: a net-30 request to both suppliers — the nursery also offered 2/10, which the business took every month thereafter (~$120 a month, $1,440 a year, paid from cash that was already earmarked for the invoice); a monthly account at the hire yard replacing the COD counter. Payment moved to a single Friday run, by due date. Across the quarter the float freed about $18,000 of working capital — the quarter's equipment upgrade, which had been heading for the credit card, came out of the operating account instead — plus the $1,440 in captured discounts, and roughly two hours a month of payment admin disappeared. No supplier was lost, and the hire yard offered the better rate on the next season's contract once the account history existed. The owner's summary: "Eleven years of paying like a new customer. One conversation with each of them; neither one even hesitated."

From the HIVE80lab kit

Every page ships with a kit block — the paid tools behind the free advice:

• The First 30 Minutes — free incident quick-start checklist
• Ops Starter Kit — incident response for small teams — $14
• Ops Starter Kit Vol. 2 — advanced incident response & communications — $27
• Ops Mega Bundle — all 5 kits in one download — $49

Related: the overdue invoice letters are the other half of the same cash-flow statement — the ladder for money owed to you while this page sets the schedule for money owed by you; the invoice fraud (BEC) prevention checklist protects the payment run this page consolidated; and the cash runway checklist is what the freed float is actually for — the months-of-cover number every terms decision feeds. The expense reimbursement policy is the employee-spend side of the same rules — what the company pays for, proven before it is paid.

Related: terms are the lever on the outflow side of the 13-week cash flow forecast — the same thirty-day agreement that closed the week-5 hole in the worked example.

Related: terms govern when you pay; the purchase order process governs what you committed to before the invoice existed — the PO locks the price your terms then pay on.