B2B Payments
What Are B2B Payments? Definition and How They Work
Definition
B2B payments are financial transactions between businesses: a buyer paying a supplier, a company reimbursing a vendor, or a platform distributing revenue to its business partners. B2B payments are characterised by higher transaction values, more complex approval workflows, invoice-based payment cycles with extended payment terms, and greater reliance on bank transfer rails than the card networks that dominate consumer payments.
How it works
B2B payment flows typically originate from a procurement or accounts payable process rather than a real-time checkout. A buyer issues a purchase order (PO); the supplier fulfils the order and issues an invoice with payment terms (Net 30, Net 60, or similar); the buyer's accounts payable team processes the invoice, applies approval workflows, and initiates payment on or near the due date.
Payment methods in B2B vary by transaction size, geography, and buyer-supplier relationship. Bank transfers (wire transfer, ACH, SEPA Credit Transfer) are the dominant method for large transactions due to low per-transaction cost and no payment value limits. Virtual cards are growing for procurement spending: they provide per-transaction spend controls and enable buyers to earn card rewards or rebates on supplier payments while giving suppliers immediate settlement. Cheques remain in use in the US for a portion of B2B transactions, though declining.
Invoice matching and three-way matching (purchase order, goods receipt, and invoice) are standard accounts payable controls that delay payment release until the goods or services have been confirmed as received and matching the PO. Automated invoice processing (using OCR and workflow automation) reduces the manual overhead of this matching process.
B2B payment terms create a working capital dynamic: suppliers extend credit to buyers through deferred payment terms and need to finance the receivables gap. Supply chain finance (reverse factoring) and dynamic discounting allow buyers to pay early in exchange for a discount, or for a financial intermediary to pay the supplier early at a discount with the buyer settling later.
Why it matters
B2B payments represent the majority of total payment value globally (despite consumer payments representing the majority of transaction volume) because of the high transaction values involved. Inefficiency in B2B payment processing creates significant costs: manual invoice processing, cheque handling, payment investigation, and reconciliation consume large amounts of accounts payable and accounts receivable staff time.
Payment terms and working capital dynamics create strategic opportunities. Buyers who can offer early payment can negotiate early payment discounts from suppliers (typically 1% to 2% for 10-day payment versus 30-day standard terms, which is a very high annualised return on capital). Suppliers who can convert receivables to cash faster improve their cash conversion cycle and reduce financing costs.
The B2B payments market is digitalising: AP automation, e-invoicing mandates (particularly in Europe and Latin America, where governments require structured electronic invoices for VAT compliance), virtual card programmes, and real-time bank transfer infrastructure are reducing the manual overhead and payment cycle times of traditional B2B payment processes. API-based payment integration between buyer ERP systems and supplier payment platforms is eliminating the manual re-keying of payment data that creates errors and delays.
With PXP
PXP supports merchants and partners across the payments value chain. To talk through B2B payments as part of your payment strategy, get in touch with our team.
Frequently asked questions
Why do B2B payments rely more on bank transfers than cards?
Card acceptance costs (interchange and scheme fees) are proportional to transaction value, making cards expensive for high-value B2B transactions. A 1.5% interchange rate on a $100,000 invoice is $1,500 per transaction, which is commercially unacceptable for most buyer-supplier relationships. Bank transfers (ACH, SEPA, wire) carry fixed or very low per-transaction fees regardless of value, making them economical for large B2B payments. Virtual cards are an exception: they can carry interchange costs, but buyers often earn card rewards that offset or exceed the supplier's acceptance cost.
What are payment terms and why do they matter?
Payment terms define when a buyer is required to pay a supplier invoice after delivery. Common terms include Net 30 (payment due 30 days after invoice date), Net 60, Net 90, and 2/10 Net 30 (2% discount if paid within 10 days, otherwise full amount due in 30 days). Payment terms represent extended credit from the supplier to the buyer. For suppliers, extended terms create a working capital gap that must be financed; for buyers, extended terms are a form of free short-term credit.
What is supply chain finance?
Supply chain finance (SCF), also called reverse factoring, is a financing arrangement in which a financial institution pays a supplier's invoices early (at a small discount to face value) and the buyer repays the financial institution on the original payment terms. The supplier receives early payment improving their cash flow; the buyer's payment terms are unchanged or extended. The financing cost is typically lower than the supplier's own cost of borrowing because it is based on the buyer's credit rating rather than the supplier's.
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