Supplier Payment Terms: Why and How to Negotiate Them

Supplier payment terms set when and how you pay a supplier, such as net 30, a deposit with the balance on delivery, or a discount for paying early. To get better terms, work out what each extra day is worth, negotiate at contract award or renewal, and offer something the supplier values in return.

This guide covers the common terms, the math on longer terms and early-payment discounts, a step-by-step approach with a sample email, and public-sector rules.

What are payment terms in procurement?

Payment terms in procurement are the conditions in a contract or purchase order that set when and how a supplier is paid. They also cover what happens if you pay early or late. Other names for them are credit terms and vendor payment terms. The most common ones:

The start date matters as much as the number of days. "Net 30 from the invoice date" and "net 30 from receipt of a correct invoice" are different terms. The second gives you more time and a reason to insist on accurate invoices. Federal agencies count from receipt of a proper invoice (5 CFR 1315.4).

What better payment terms are worth

Each extra day of terms keeps cash in your account one day longer. For a single supplier, the cash you free up is roughly annual spend × extra days ÷ 365.

For example, moving $1 million a year of spend from net 30 to net 60 frees about $82,000 of cash ($1,000,000 × 30 ÷ 365), for as long as the terms last. At an 8% cost of capital, that cash is worth about $6,600 a year ($82,000 × 8%).

Finance teams track the overall effect as days payable outstanding (DPO). DPO is accounts payable divided by cost of goods sold (or total purchases), times the days in the period. Longer terms raise DPO.

Longer terms aren't free for the supplier. It finances the gap, often at a higher rate than you pay, and may build that cost into its prices.

The break-even is simple. Thirty extra days are worth your cost of capital × 30 ÷ 365 of the invoice value, about 0.66% at 8%. If a supplier asks for a bigger price increase than that in exchange for longer terms, the deal costs you money. Negotiate terms and price together, and benchmark the price so a concession on terms isn't taken back in unit prices.

Early-payment discounts: when to take one

An early-payment discount trades a small price cut for paying sooner. To compare one with your other uses of cash, turn it into an annual rate: discount ÷ (100 - discount) × 365 ÷ (full term - discount period).

Rates use a 365-day year; a 360-day convention gives slightly lower figures.

Take the discount when its rate beats your cost of capital and your accounts payable team can reliably pay inside the window. Federal agencies follow the same logic. They may take a discount only "if economically justified," and taking one after the deadline costs them an interest penalty (5 CFR 1315.7). If you have cash to spare and a supplier doesn't offer a discount, offer to pay early in exchange for one.

Dynamic discounting and supply chain finance

Two arrangements let suppliers get paid sooner while you keep, or extend, your terms:

• Dynamic discounting. You offer to pay approved invoices early for a discount that shrinks the later you pay. It uses your own cash.
• Supply chain finance (also called reverse factoring). A bank or finance provider pays the supplier early at a rate based on your credit, and you pay the provider on the due date.

Supply chain finance shows up in your financial statements. Under FASB ASU 2022-04, a buyer that reports under US GAAP and uses a supplier finance program must disclose the program's key terms and the confirmed amount still unpaid at period end. The buyer must also show where that amount sits on the balance sheet and, for fiscal years beginning after December 15, 2023, a rollforward for the year.

How to negotiate payment terms with suppliers

To negotiate payment terms with suppliers, know what you pay and when, pick the suppliers where terms matter, negotiate at award or renewal, ask for a specific term with a reason, offer something in return, weigh terms against price, and put the result in writing. The seven steps work for new suppliers and for ones you're keeping.

1. Know what you pay and when

Pull 12 months of accounts payable data: spend, payment terms and the actual days to pay for each supplier. Inconsistent terms show up quickly, such as similar suppliers on net 15 and net 60, or prepayments nobody has questioned. Check your own record too, because a buyer that already pays late will struggle to win longer terms. A spend analysis shows where your spend goes by supplier and category.

2. Choose where terms matter

Start with the suppliers you pay most, the ones on short terms or prepayment, and categories where comparable suppliers already accept longer terms. A small change on a large account is worth more than a big change on a small one.

3. Negotiate at award or renewal

Payment terms are easiest to change when the supplier is competing for the business: in an RFP, at renewal or when you consolidate volume. Put your standard terms in the RFP so every bid is priced on them (see our RFP process timeline). Mid-contract requests can work too, but expect to give something back.

4. Ask for a specific term, with a reason

Name the term and the start date, such as "net 45 from receipt of a correct invoice, from July 1." Give a reason the supplier can accept, for example that you're putting every supplier in the category on the same terms. Asking for a little more than your target leaves room to settle.

5. Offer something in return

Suppliers move on terms when they get something they value:

• a longer contract or a renewal option
• consolidated volume or a firm forecast
• faster invoice approval and electronic payment
• early payment on some invoices, in exchange for a discount
• one named contact for invoice questions and disputes

6. Weigh terms against price

Use the break-even above. If longer terms come with a price increase, compare the increase with what the extra days are worth to you. Check the price against the market at the same time, because a supplier can give on terms and recover it in unit prices or fees.

7. Put it in writing, then pay on time

Write the agreed terms into the contract and every purchase order. Include the due date and what starts the clock, discount terms, late fees, the dispute process and the payment method. Load the new terms into your payables system so they are actually used. Then pay on time, every time, and review terms again at each renewal as your volume and the relationship change.

When Dryden renegotiates a contract with a supplier you're keeping, payment terms are on the table alongside pricing, rebates and service levels. See contract negotiation.

From prepayment to net terms with a new supplier

A new supplier that insists on a wire transfer before it ships is managing its own risk. Lower that risk in stages instead of asking for net 60 on day one:

1. Prepay a first, small order.
2. Move to a deposit, for example 30%, with the balance before shipment.
3. Move to a deposit with the balance on delivery or after inspection.
4. Ask for net 15 or net 30 with a credit limit once you have a record of on-time payments.

Ask what the supplier needs to extend credit, such as trade references, financial statements or a credit application. For imports, a letter of credit or a documentary collection lets the supplier ship with less risk than open terms, so you don't have to prepay in full.

Sample email asking for longer payment terms

Replace the parts in braces, and send it with your renewal requirements rather than after them.

Subject: Payment terms for our {renewal / next order}

Hi {name},

We're moving our {category} suppliers to the same payment terms: net {45} from receipt of a correct invoice, starting {date}. We'd like {supplier} to be part of that.

In return, we can {consolidate our orders with you / extend the agreement to a longer term / pay by ACH / commit to a volume}. We pay on time, and we're happy to share our record.

Could we talk this through before {renewal date}? I can set up a call this week.

{Your name and title}

Don't push small suppliers too far

Longer terms move financing costs onto your suppliers, and small suppliers often pay more to borrow. Stretch them too far and they raise prices, cut service or stop bidding. The federal government sets the opposite goal: agencies aim to pay small business contractors within 15 days of a proper invoice (FAR 32.009-1).

A fair policy treats suppliers differently. Keep standard terms for large suppliers, and offer shorter terms or early payment to small and critical ones.

Payment terms at universities and public bodies

Public universities and other public bodies usually have less room to stretch terms, because prompt-payment rules set when they must pay.

• Federal agencies. Unless the contract says otherwise, payment is due 30 days after a proper invoice arrives, and late payments carry interest penalties (5 CFR part 1315).
• States. In Texas, a governmental entity's payment is overdue on the 31st day after the latest of three dates: receipt of the goods, completion of the service or receipt of the invoice. For political subdivisions whose governing body meets monthly or less, the deadline is the 46th day (Texas Government Code 2251.021). Other states have their own rules.
• Institutional policy. The University of Texas System describes its standard terms as net 30 under the Texas Prompt Payment Act. It tries to take early-payment discounts when they are offered. Prepayment and progress payments need approval from its director of contracts and procurement (UT System payment terms).

So public buyers negotiate other things: what starts the clock, early-payment discounts, invoice requirements, and whether a supplier's request for prepayment is justified. See how we work with higher education and the public sector.

How to handle payment disputes

Many payment disputes start with a mismatch between the invoice, the purchase order and what was delivered. Resolve them in order:

1. Check the contract for the payment terms, the dispute clause and any notice requirements.
2. Pay the undisputed part on time, and tell the supplier in writing which items you dispute and why.
3. Keep the purchase order, delivery records, invoices and correspondence together.
4. Escalate in writing to a named contact, with a date for a response.
5. Use mediation or arbitration if the contract provides for it. A trade association may also offer mediation. Bring in counsel when those steps fail.

If the problem is your own cash, call the supplier before the invoice is late and propose a payment plan in writing. Our post on common contract issues covers clauses worth checking before a dispute starts.

Supplier payment terms FAQ

What are standard payment terms for suppliers?

Net 30 is a common default for supplier payment terms in US business-to-business trade. Many public buyers also pay on a net 30 basis under prompt-payment rules. Large buyers often negotiate net 45, net 60 or longer. New or small suppliers may ask for a deposit or payment upfront.

What does 2/10 net 30 mean?

2/10 net 30 means the buyer can take a 2% discount by paying within 10 days of the invoice date. Otherwise, the full amount is due in 30 days. Paying 20 days early to save 2% works out to an annual return of about 37%. A buyer with cash to spare should usually take the discount.

Do suppliers have to give a discount for paying early?

Suppliers don't have to give a discount for early payment unless the contract or invoice offers one. Buyers can ask for early-payment terms in a negotiation, and suppliers that want cash sooner may agree. Taking a discount after the discount period has passed is a common cause of disputes.

Can you pay suppliers by credit card to get more time?

Paying suppliers by credit card can add time, because the card bill falls due after the statement closes. Not every supplier accepts cards, and some add a surcharge for card payments, which can cancel out the benefit. Check the card program's rules and any rebate before making cards the default.

When is the best time to renegotiate payment terms?

The best time to renegotiate payment terms is at contract award or renewal, when the supplier is competing for the business. Mid-contract changes can work if you add volume or another benefit. For a busy season, ask a few months ahead, tie the request to the extra orders, and get it in writing first.

Related service: Contract Negotiation →