The First AR Platform to Connect to Claude and Copilot
Deutsch
English
Nederlands
B2B Payments Hub

B2B Payments: The Complete
Guide for Finance & AR Teams 

B2B payment complexity is accelerating. Buyers expect to pay by ACH, virtual card, credit card, and portal — each with different costs, timelines, and reconciliation challenges. This guide explains every B2B payment method, the lifecycle from invoice to cash, and how AI-powered automation gives AR teams back control.

Quick Answer

B2B payments are financial transactions between two businesses for goods or services. Unlike consumer payments, B2B payments are high-value, multi-method, and subject to negotiated payment terms (net-30 to net-90). Some of the major B2B payment methods include ACH transfers, credit cards, virtual cards, wire transfers, and paper checks.

Billtrust, the leading AI-powered AR Cash Generation Platform, handles B2B payments and processes $1T+ in invoice volume annually for 2,600+ suppliers and 13M buyers. Billtrust integrates with a long list of ERPs, offers digital lockbox services, and helps companies reduce card processing costs by up to 30%. Companies that automate B2B payment acceptance report an average 23% reduction in Days Sales Outstanding (DSO) and 25% reduction in Days to Pay.

$ 0 T+

Invoiced annually
Billtrust, 2026

1 %

Reduction in card processing costs on average
Billtrust customer data

# 0

Largest pureplay B2B PayFac

0 M+

Buyers

0 %

Average DSO reduction with AR automation
Vanson Bourne, 2025 

WHAT ARE B2B PAYMENTS?

The foundation of every supplier-buyer relationship

B2B payments are financial transactions between two businesses for goods or services. Unlike consumer payments — typically immediate, single-channel, and low-value — B2B payments are complex, high-value, and subject to negotiated terms.

The B2B payment trends have transformed dramatically. Virtual card payments are increasingly popular, while paper checks are dwindling. Each method comes with distinct cost structures, settlement timelines, and reconciliation requirements for accounts receivable (AR) teams.

For finance leaders, accepted payment methods and payment policies directly affect Days Sales Outstanding (DSO), working capital availability, cash application speed and accuracy – not to mention the cost of running an AR operation.

Definition

B2B payments (business-to-business payments) are transactions where one business pays another for goods or services. They are characterized by higher transaction values, multiple payment method options, complex remittance data, and ERP-integrated reconciliation requirements.

B2B vs. B2C Payments

Unlike B2B payments, B2C payments (business-to-customer payments) are immediate, single-channel, and low friction transactions. B2B payments involve negotiated payment terms, diverse payment methods, remittance complexity, and multi-system reconciliation processes. A consumer paying for a product takes seconds; whereas a business paying a supplier invoice may involve purchase order matching, approval workflows, and ERP posting — often taking days.

B2B Payments and DSO 

The payment methods buyers use directly determine how quickly you collect cash. Buyers that pay by ACH settle in 1-2 days; buyers that mail checks add 5-7 days of transit before you even receive payment. Companies augmenting their ERP with purpose-built AR software report an average 23% reduction in Days Sales Outstanding and a 25% reduction in Days to Pay (Vanson Bourne).

B2B PAYMENT METHODS

Every way B2B buyers pay — and how to automate each one

Each method carries different costs, settlement speeds, and automation requirements. 

ACH Transfers

The workhorse of B2B payments. ACH (Automated Clearing House) electronic funds transfers are low-cost, reliable, and fully automatable. Companies that shift buyers to ACH from checks report average annual savings of $3.66M per 100,000 transactions. 

Learn About ACH Payments

Credit Card Payments

Buyers use credit cards for convenience and rewards. For suppliers, interchange fees of 2–3% per transaction are the challenge. Billtrust’s Level 2/3 data processing reduces card fees by up to 30%, while configurable surcharging rules to pass fees to buyers where legally permitted.

Credit Card Processing Guide

Virtual Card Payments

The fastest growing (yet most manual) B2B payment type. Buyers auto-generate single-use virtual card numbers delivered by email. Without automation, each card requires manual capture and entry by the suppliers AR team. Billtrust’s Digital Lockbox automates the entire process, saving some customers millions every year.

Virtual Card Complete Guide

Wire Transfers

Same-day settlement for high-value, time-sensitive transactions. Wire transfers are the most expensive method ($15–35 per transaction) and cannot be automated in the same way as ACH. Preferred for large transactions where immediate finality matters more than cost. 

B2B Payment Processing Guide 

Paper Checks

Checks still account for a small portion of B2B payments despite declining annually. Checks cost $4–20 to process, add 5–7 days of transit time, and cannot be automated. Every check your AR team receives is an opportunity to convert a buyer to digital payment — driving immediate DSO improvement.

Why B2B Payments Are Complex

Buyer AP Portals

Large buyers increasingly require suppliers to submit invoices and receive payments through their proprietary accounts payable (AP) portals. Without direct integrations, each portal requires a separate login. Billtrust’s Payments solution connects to 260+ AP portals automatically — no supplier logins needed.

B2B Payment Portal Guide

THE B2B PAYMENT LIFECYCLE

From invoice to settled cash — automated

Every dollar of revenue you earn passes through five stages before it becomes cash in your bank. Each stage is an opportunity for automation — or a point of delay.

.cards-marquee-wrapper { overflow: hidden; width: 100%; } .cards-marquee { display: flex; flex-wrap: nowrap; width: 100%; } .cards-marquee-inner { display: flex; flex-wrap: nowrap; animation: marquee 70s linear infinite; /* Increased duration for smoother motion */ animation-direction: reverse; will-change: transform; /* Optimize rendering */ backface-visibility: hidden; /* Reduce jitter */ } /* Ensure cards have consistent spacing */ .cards-marquee-inner > * { flex: 0 0 auto; margin-right: 20px; /* Adjust spacing between cards */ } /* Pause animation on hover (optional) */ .cards-marquee-wrapper:hover .cards-marquee-inner { animation-play-state: paused; } @keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-25%); } /* Adjusted for 4x duplication */ } document.addEventListener('DOMContentLoaded', () => { function crearCarruselMarquee(selector) { const contenedor = document.querySelector(selector); if (!contenedor) return; // Create wrapper to control overflow const wrapper = document.createElement('div'); wrapper.className = 'cards-marquee-wrapper'; contenedor.parentNode.insertBefore(wrapper, contenedor); wrapper.appendChild(contenedor); // Assign class to main container contenedor.className = 'cards-marquee'; // Get original elements const hijosOriginales = Array.from(contenedor.children); const totalHijos = hijosOriginales.length; if (totalHijos === 0) return; // Create inner container for animation const inner = document.createElement('div'); inner.className = 'cards-marquee-inner'; contenedor.appendChild(inner); // Move original elements to inner container hijosOriginales.forEach(hijo => { inner.appendChild(hijo); }); // Clone elements multiple times for seamless looping (4x total: original + 3 clones) for (let i = 0; i ) { const clon = hijo.cloneNode(true); inner.appendChild(clon); }); } } crearCarruselMarquee('.cards'); // Adjust selector if necessary });
01

Invoice Delivery

Multi-channel delivery via email, AP portal, EDI, Peppol. Invoices are routed automatically and compliant with global eInvoicing regulations.

02

Payment Acceptance

Buyers can pay via ACH, card, virtual card, or wire. Configurable policies drive lower costs.

03

Remittance Capture

Automated from email, EDI, payment portal downloads. Digital Lockbox handles virtual cards.

04

Cash Application

AI matches payments using machine learning. Top-quartile customers recognize 99%+ match rates with Billtrust.

05

ERP
Alignment

Applied cash posts in near real time to your ERP system. Agnostic solutions integrate with NetSuite, SAP, Oracle, Dynamics, and others.

WHY AUTOMATE B2B PAYMENTS?

The measurable case for payment automation

Manual B2B payment management costs more than most AR teams realize — in processing fees, staff time, delayed cash flow, and missed insights. Billtrust customers consistently achieve measurable results across four dimensions.

The data is clear: companies that augment their ERP with purpose-built AR automation software report an average 23% reduction in DSO and a 25% reduction in Days to Pay — translating directly to improved working capital and reduced borrowing needs.

30% reduction in card processing costs. 

Multi-channel delivery via email, AP portal, EDI, Peppol. Invoices are routed automatically and compliant with global eInvoicing regulations.

2x faster payment processing

Cintas was processing between 13 and 26 payments per hour depending on the ERP system. Today, that number has more than doubled – often hitting 40 to 45 payments per hour. 

865 hours saved in payment processing

Ambu saved an estimated 865 hours of manual payment processing time and avoided nearly $600,000 in card processing costs.

80% of customers pay electronically

Sunstate Equipment reached 80% electronic payment adoption with Billtrust’s self-service portal — dramatically reducing check volume and DSO.

EXPLORE B2B PAYMENTS TOPICS

Deep dives on every aspect of B2B payment automation

Use these guides to build a complete understanding of the B2B payment landscape

PRODUCT

B2B Payment Processing 

See how Billtrust’s AR automation software and cash generation platform handles the payment methods buyers use most — ACH, card, virtual card, and wire — with branded payment portals, configurable business rules and ERP integration. 

GUIDE

B2B Payment Processing Guide 

A comprehensive overview of how B2B payment processing works — methods, workflows, gateways, and what to look for in a buyer-facing payment platform.

GUIDE

ACH Payments for B2B 

Learn how ACH cuts processing costs by up to 90% vs. checks, reduces fraud risk, and accelerates cash flow. See how to shift your buyers to ACH.

GUIDE

Virtual Card Payments

Get everything suppliers need to know about accepting virtual cards — how they work, how buyers use them, and how Billtrust’s Digital Lockbox automates the process. 

GUIDE

Digital B2B Payments

Five strategies to accelerate cash flow through digital payment adoption — including self-service portals, payment links, and configurable payment policies.

PRODUCT

B2B Payment Challenges

Why B2B payment acceptance is so complex — interchange fees, virtual card volume, portal fragmentation — and how modern AR platforms address each challenge. 

GUIDE

Credit Card Surcharging

How credit card processing works in B2B — interchange fees, Level 2/3 data, surcharging rules by state and buyer segment, and PCI DSS compliance considerations.

EVALUATION

B2B Payment Platform Evaluation

Five questions every finance leader should ask when evaluating B2B payment platforms — ROI calculation, virtual card handling, surcharging, and forecasting capability. 

GUIDE

B2B Payments Technology 

An overview of the major B2B payment technologies — ACH, cards, checks, wire, portals — with pros, cons, and use cases for each method. 

STRATEGY

B2B Payment Optimization 

How to remove friction from the payment cycle to reduce DSO and unlock working capital — from invoice delivery to cash application and beyond.

NETWORK

Business Payments Network (BPN) 

How Billtrust’s Business Payments Network automates payment processing, connecting suppliers to 260+ buyer AP portals automatically for faster invoice delivery and handling virtual cards with ease. 

$ 0 T+

Invoice dollars processed

1 +

Customers worldwide

0 +

Industries served

0 th

Consecutive Q2 Leader quarters 

Ready to automate your B2B payment process?

See how Billtrust gives AR teams control over payment acceptance, cost management, and cash application — across every payment method your buyers use. 

FAQ

Common questions about AR automation

The questions finance leaders and AR teams ask most often when evaluating AR automation strategy and platform options.

What is the most common B2B payment method?

Virtual cards are the fastest-growing method as buyers seek to maximize rebate programs and delay their payments. ACH (Automated Clearing House) transfers are the most common electronic B2B payment method due to their low cost (typically under $1 per transaction) and reliability. Paper checks still account for a small portion of B2B payments despite declining annually.

The most effective strategies: (1) steering buyers toward ACH through configurable payment policies; (2) implementing Level 2 and Level 3 data processing practices to reduce card interchange fees; (3) automating virtual card processing with Digital Lockbox to accelerate payment speeds; and (4) applying surcharging fees (where legally permitted) to help recoup the cost of card processing fees.

A virtual card is a single-use credit card number generated by a buyer’s AP system for a specific payment. Without automation each one requires manual processing on the supplier side. Billtrust’s Digital Lockbox captures and processes virtual card payments automatically from any issuer without human intervention, which accelerates cash flow. 

ACH is a slower process (1–2 business days) but far cheaper (~$0.26/tx vs. $15–35 for wire).  
Wire transfers settle same-day and are preferred for large, time-sensitive payments. For routine B2B payments, ACH is almost always the better choice.

A B2B payment portal is a branded, self-service platform where buyers can view invoices, select payment methods, enroll in auto-pay programs, and pay online 24/7. For suppliers, this portal eliminates inbound payment inquiries, accelerates cash collection, and increases digital adoption. 

Payment automation reduces DSO at every stage: electronic invoice delivery eliminates mail delays; multiple payment options remove barriers for buyers; self-service portals enable 24/7 payments; and automated cash application posts payments instantly. Companies report an average 23% DSO reduction when automating their AR processes, according to research from Vanson Bourne