Vendor payment terms define the conditions under which a buyer agrees to pay a supplier — specifically, how long the buyer has to pay after receiving an invoice, and whether any discounts are available for early payment. They are typically expressed as a short code on the invoice: Net 30 means payment is due within 30 days, Net 60 means 60 days, and 2/10 Net 30 means a 2% discount is available if payment is made within 10 days, otherwise the full amount is due within 30 days.

Payment terms matter enormously for cash flow management. From the buyer's perspective, longer payment terms mean more working capital — money that stays in the business longer before it has to be paid out. From the supplier's perspective, shorter terms mean faster cash collection. Finance teams that understand the full range of payment term options are better positioned to negotiate arrangements that serve their business's interests.

Net 30 is the most common payment term in business-to-business transactions. It means that the full invoice amount is due within 30 calendar days of the invoice date. Net 30 is the default term offered by most suppliers because it balances their need for timely cash collection against the buyer's need for time to process the invoice and arrange payment.

For buyers, Net 30 provides a predictable payment cycle that aligns with most monthly accounting processes. The challenge with Net 30 is that it assumes the invoice will be processed promptly — if your AP process takes 8–10 days to process an invoice after receipt, you effectively have only 20–22 days to arrange payment before the due date. Businesses with slow invoice processing regularly miss Net 30 deadlines, incurring late payment penalties and damaging supplier relationships.

Net 60 and Net 90 payment terms give buyers 60 or 90 days to pay after the invoice date. These extended terms are most common in industries with long production or delivery cycles — construction, manufacturing, and wholesale distribution — where buyers need time to receive, inspect, and resell goods before they have the cash to pay for them.

From a cash flow perspective, extended payment terms are valuable because they reduce the working capital required to fund the business. A business with $500,000 in monthly supplier spend that moves from Net 30 to Net 60 terms effectively frees up $500,000 in working capital. However, extended terms come with trade-offs: suppliers who offer Net 60 or Net 90 typically price their goods or services higher to compensate for the longer cash conversion cycle.

The term 2/10 Net 30 means the buyer can take a 2% discount if they pay within 10 days; otherwise, the full amount is due within 30 days. This is the most common early payment discount structure, though the specific percentages and timeframes vary — 1/10 Net 30 and 2/15 Net 45 are also common.

Early payment discounts are offered by suppliers as an incentive for faster cash collection. For the buyer, the discount represents a return on the cash used to pay early. The key question for buyers is whether the return on taking the discount exceeds the return they could earn by keeping the cash for the full 30 days. In most cases, the answer is a clear yes — the annualised return on a 2/10 Net 30 discount is remarkably high.

The annualised return of an early payment discount can be calculated using the formula: (Discount % / (1 - Discount %)) × (365 / (Full payment days - Discount days)). For a 2/10 Net 30 discount: (0.02 / 0.98) × (365 / 20) = 2.04% × 18.25 = 37.2% annualised return.

A 37% annualised return is extraordinary by any measure. For comparison, the S&P 500 has historically returned around 10% per year. The reason most businesses miss early payment discounts is not that they have calculated the return and decided against it; it is that their invoice processing is too slow to pay within the discount window. Automating invoice processing to reduce cycle time from 8–10 days to 1–2 days makes capturing these discounts operationally feasible.

Despite the attractive annualised returns, there are situations where taking an early payment discount is not the right decision. If your business is cash-constrained — carrying a high overdraft balance or relying on expensive short-term financing — paying early may not be possible even if the return is attractive.

The decision framework is straightforward: compare the annualised discount return against your cost of capital. If the discount return exceeds your cost of capital, take the discount. If it does not, hold the cash and pay at the due date. Document your decision-making process so that AP staff apply the same logic consistently across all suppliers.

Payment terms are negotiable, but most businesses accept the default terms their suppliers offer without question. If you have been a reliable customer for 12+ months, you have leverage to request extended payment terms — moving from Net 30 to Net 45 or Net 60 can add weeks of working capital to your business without any additional financing cost.

The key to successful payment terms negotiation is demonstrating that you are a low-risk customer. Paying invoices accurately and on time builds the credibility you need to make this request. Providing your supplier with a forecast of your expected purchase volume for the next 12 months gives them a business reason to accommodate your request. Document any agreed changes to payment terms in writing and update your vendor master file and accounting system to reflect the new terms.

Dynamic discounting is a flexible early payment arrangement where the discount rate varies based on how early payment is made — the earlier the payment, the larger the discount. Unlike the binary choice of 2/10 Net 30, dynamic discounting allows buyers to choose any payment date between the invoice date and the due date, with the discount calculated proportionally.

Dynamic discounting platforms typically allow suppliers to offer invoices for early payment through a portal, and buyers to select which invoices to pay early based on their available cash and the discount rate on offer. For buyers with variable cash positions, dynamic discounting is more flexible than fixed early payment discount terms because it allows them to deploy surplus cash opportunistically rather than committing to a fixed payment schedule.