Introduction
B2B invoice payment on Clarity Payment Hub is a branded self-service experience built for how businesses actually pay: an open invoices list, invoice search, single or consolidated payment, credit memo application, commercial cards with Level 2/3 savings, ACH payments for high-dollar invoices, and real-time ERP posting. It matches how B2B customers really pay rather than how consumer checkout works, and it makes the B2B payment process self-service from end to end. As a B2B payment solution, Payment Hub lets customers accept payments and make online payments against open invoices, with no late payment penalties to chase once auto-debit is on. Every invoice posts back to the correct customer and GL in your ERP the moment the customer authorizes, so cash collection speeds up and manual processing drops. Business customers pay with the payment methods they already use, including commercial cards, ACH, and wire transfers, and every B2B payment posts to the correct invoice so cash flow and reconciliation stay current.
Why B2B invoice payments are not consumer checkout
Most payment software assumes a consumer shape: one buyer, one cart, one card, one shipping address, one click. That model breaks almost every time a B2B customer sits down to pay you. Business-to-business payments do not behave like consumer payments. In business-to-business transactions, the buyer is an account with many invoices, and these business transactions carry purchase order references and credit and payment terms that consumer payments never touch. B2B has a different shape, and Clarity Payment Hub is built around it.
A B2B customer account is not a single person. It is an AP clerk, a controller, a purchasing manager, sometimes an owner or operator, each with different spending authority and different login needs. The account has many open invoices, not one cart. Invoices carry purchase order references, project codes, or job numbers that need to stay attached. Payments are matched to the purchase orders in your ERP so the audit trail stays intact. Many customers also have unapplied credit memos in the ERP that they want to apply before paying.
The payment methods are different too. Commercial cards (purchasing, corporate, fleet) qualify for lower Level 2/3 interchange tiers, but only if line-item, tax, and customer-code data is passed on the transaction. High-dollar invoices make card processing expensive, and ACH is 10 to 20 times cheaper on a $50,000 ticket, so it should be the default above a threshold. Net payment terms are common, and the best customers want to auto-debit on the due date rather than field your reminder calls. The payment terms you set stay intact while the chasing goes away.
The customer does not always pay one invoice at a time. The signature B2B payment workflow is a controller selecting thirty open invoices from a list and authorizing one consolidated transaction, with clean per-invoice cash application on your ERP side.
The self-service invoice experience: find, review, pay
When a B2B customer opens your payment portal, they are answering one question: what do I owe, and how do I pay it fastest? The B2B payment process is the same each time: find the invoice, review it, and pay. Every element of the Payment Hub experience answers that in under 90 seconds. Electronic invoicing replaces paper here: digital invoices post from the ERP, and the whole invoicing process runs online. The accepted payment methods include cards, ACH, and digital payments, and electronic invoicing keeps every record in sync.
Open invoices list at login
The first thing a customer sees is the list of everything they owe: invoice number, date, amount, due date, and days past due. It is sortable, filterable, and paginated for accounts with hundreds of invoices, and it is pulled from your ERP in real time, so the list is never stale.
Search by invoice, PO, or job
A customer types an invoice number, purchase order reference, or project code, and the matching invoice opens instantly with full line-item detail, tax, shipping, and account history. This replaces the "can you resend invoice 4218?" phone calls.
Invoice detail and PDF download
A full invoice view shows line items, tax, freight, purchase order reference, and notes exactly as the ERP rendered them. One-click PDF download gives the customer a copy for their records, plus a print-friendly view. The invoice the customer sees is the invoice your ERP stores.
Tokenized saved payment methods
Credit cards and ACH bank accounts saved to the account once are reused in one click. Tokens live at the gateway's PCI-scoped vault, not on your servers. Multiple authorized contacts on the same customer share the saved payment methods, so whoever logs in can pay without re-keying.
Method routing by invoice size
You set the rules. Invoices under a dollar threshold surface a card as the default, invoices above it surface ACH as the default, and commercial cards still qualify for Level 2/3 data enrichment where they are chosen. The policy runs automatically, so customers do not debate the payment method on every invoice.
Credit memos and available balances
Unapplied account credits and credit memos appear in the same view, ready to apply to open invoices before payment. The customer applies credits in one click, Payment Hub writes the credit application back to the ERP, and the remaining invoice balance is shown for payment.
The six B2B payment patterns Payment Hub handles natively
Business-to-business payments fall into six patterns, and almost every B2B invoice payment fits one of them. The portal gives customers clear invoice payment options for each. Consumer-checkout software handles the first and fumbles the other five. Payment Hub treats each as its own flow, so the payment process fits the customer rather than forcing a consumer checkout.
Single-invoice payment
An AP clerk pays one invoice from an email reminder. The customer clicks the pay-by-link, lands pre-authenticated at the specific invoice, selects a saved payment method, card or ACH, and authorizes. The cash receipt posts to the ERP within seconds. The path from email open to paid is about 90 seconds.
Consolidated multi-invoice payment
A controller works the open AP queue at month-end. The customer selects any number of invoices from the open list, Payment Hub sums the total, runs one authorization, and posts per-invoice cash receipts to the ERP. Level 2/3 data flows on every eligible line. This is the signature B2B workflow.
Pay-on-account
A customer sends a payment without specific invoice allocation. Payment Hub applies it to open invoices per your business rules (oldest first, largest first, or operator-specified). Any remaining unapplied balance surfaces on the customer record as account credit for future use.
Credit memo application
A customer applies unapplied credits before paying the balance. Available credits and credit memos appear alongside open invoices. The customer applies credits to specific invoices, Payment Hub updates the balances in real time, and the remaining open amount, if any, is presented for payment. Reconciliation stays clean in the ERP.
Partial or short-pay with reason code
A customer pays part of an invoice with a dispute reason, for example $9,500 on a $10,000 invoice with the reason code "Damaged goods." The paid portion posts as a receipt, the unpaid balance stays open with the reason code attached, and dunning stops on the paid portion only. The short-pay routes to your AR worklist with full context rather than as a mystery amount.
MOTO and phone-in via AR staff
A customer prefers to call in, and AR keys the payment on their behalf. AR staff opens the customer in the Virtual Terminal, selects the invoices, keys or selects a tokenized payment method, card or ACH on file, and submits. Level 2/3 data pulls from the ERP automatically, so phone-entered transactions get the same interchange savings as portal transactions.
Commercial cards, ACH, and the unit economics of B2B
Every B2B invoice has a right payment method, and B2B payments split cleanly by ticket size. Small tickets make card processing cheap and easy, and large tickets make ACH the economics-correct default. Commercial cards with Level 2/3 data enrichment can clear for less than 2 percent on B2B tickets where consumer cards clear at 3 percent or more. Payment Hub encodes the right rules and runs them automatically, so the payment process stays cheap at every ticket size. The accepted payment methods span commercial cards, ACH, wire transfers, and debit cards, and Payment Hub routes each B2B payment to the method with the best economics. You accept payments by whichever method fits the invoice. These electronic payments replace paper checks and slow bank transfers, so the payment process is faster and processing costs fall. Card and ACH are the primary methods, with debit cards and digital payments accepted where customers prefer them. These electronic payments clear through the automated clearing house network, and ACH transfers and ACH transactions settle without the transaction fees a wire would add. For most B2B payments, cards suit small tickets and ACH payments suit large ones, and the payment methods a customer prefers are saved for reuse, and new payment methods can be added at any time.
The method routing policy: your rules, applied automatically
You configure the rules once, and Payment Hub applies them on every invoice across every channel: portal, pay-by-link, MOTO, and scheduled auto-debit. Most Clarity customers start with a representative policy that defaults small invoices to card and large invoices to ACH, then adjust the thresholds to their own book.
Compliant surcharging where permitted
Payment Hub supports credit-card surcharging on B2B card transactions in states and networks that permit it, with state-by-state rule enforcement, network caps (typically 3 percent maximum), legally required pre-authorization disclosure, and debit and prepaid cards excluded automatically. Surcharges track as a separate line in the ERP, so accounting sees the pass-through clearly. Customers who prefer to avoid the surcharge typically shift to ACH, which further improves economics.
Industries where B2B invoice payment automation wins
B2B payments look different in each vertical: distribution is commercial-card heavy, manufacturing is milestone and deposit driven, government is Level 3 and CEDP compliance focused, and professional services is retainer and project billing. Payment Hub applies the right pattern per industry automatically.
B2B Distribution and Wholesale
The signature Payment Hub vertical: high commercial-card volume, Net 30 payment terms, consolidated month-end payments, large-ticket ACH, and volume discounts that need line-item data enrichment for Level 3. The consolidated multi-invoice workflow, Level 2/3 commercial-card savings on every eligible line, ACH as the default above an invoice threshold, and real-time cash application in the ERP all apply here. Distribution customers placing bulk orders against credit limits pay faster when the invoicing process is self-service, which strengthens business relationships and trading-partner trust. Bulk orders settle faster, which helps improve cash flow and keeps cash flow steady through the month.
Manufacturing
Milestone billing, balance-on-delivery payments, dealer-network commercial-card programs, and service contracts. Deposits and progress invoices sit on the customer account until the next authorized buyer clears them. Deposits tie to sales orders and project codes, milestone payments track PO references, dealer commercial cards earn Level 2/3, and service contracts run recurring on ACH.
Healthcare and Life Sciences
Commercial-side B2B: vendor, lab, and supply invoices between healthcare systems, practice-management billing to payers, and practice-to-vendor AP. Patient-pay flows are covered by a separate AR pattern; this is the B2B side. It covers inter-entity B2B invoice payment, commercial-card Level 2/3 on qualifying transactions, ACH for large interprovider and system payments, and practice-management or ERP posting.
Nonprofit and Fundraising
Foundation sponsor invoices, corporate-giving pledge collection, event-sponsorship billing, and grant-disbursement flows: the B2B side of nonprofit finance, separate from donor recurring. It covers the sponsor and foundation invoice portal, corporate-pledge receivable collection, grant-disbursement tracking, and fund-accounting GL posting with designation.
Education
Institutional billing: vendor and supplier payments, research-program invoicing, continuing-ed corporate accounts, and B2B credentialing program fees. Tuition belongs to a different payment flow; this is the commercial side. It covers institutional vendor and supplier AR, corporate continuing-ed accounts, B2B research and grant invoicing, and SIS or ERP posting for the institutional GL.
Government and Public Sector
Commercial suppliers invoicing municipalities, states, and federal agencies: the highest-value Level 3 and CEDP compliance use case in the Clarity book. Government purchase cards demand line-item detail or lose the interchange tier entirely. It covers CEDP-ready Level 3 on government commercial cards, high-dollar invoices on ACH by default, PO reference and customer-code passing, and posting to Tyler, Oracle, SAP, or Dynamics financials.
Professional Services and Agencies
Retainer invoicing, project billing, hourly invoices for services rendered, disbursements, and trust or IOLTA segregation for legal workflows. These are high-value individual invoices, often on Net 30 payment terms with auto-debit for anchor clients. It covers monthly retainer auto-debit on ACH, project and hourly invoice pay-by-link, trust or IOLTA account segregation, and PSA or ERP real-time posting.
Subscription, SaaS, and Membership
Annual-plan invoices, enterprise-tier subscriptions, and B2B renewal flows where the invoice sits alongside a subscription but pays through the same consolidated B2B pattern. Mid-cycle add-on invoices also flow through this path. It covers annual-plan invoices on ACH, enterprise-tier renewal invoicing, mid-cycle add-on invoices, and real-time subscription or ERP posting.
ERP integration: per-invoice cash application in real time
B2B invoice payments only matter if the money reconciles cleanly to the invoice, and the payment process is judged on how clean that reconciliation is. Clarity Connect, Payment Hub's integration engine with more than 25 ERP connectors, syncs bidirectionally with your ERP in real time, so consolidated, partial, credit-applied, and short-pay transactions all land in the GL exactly where they should. Faster B2B payments improve cash flow directly. When customers pay on time through self-service, finance teams spend less time on collections and cash flow forecasting gets more reliable. Net payment terms still apply, but auto-debit on the due date means the payment terms you offer no longer turn into late payments. Better cash flow management is the practical result: predictable inflows, fewer delayed payments, and less manual data entry across the invoicing process. On-time B2B payments also protect business relationships, since customers are not chased and finance teams are not stuck reconciling. Automated solutions replace manual processes, which lifts operational efficiency and keeps clean records for tax compliance.
Inbound from ERP
Customers, contacts, open invoices with full line items, PO references, credit memos, account balances, aging, payment history, and terms, all in real time through each ERP's supported API layer.
Outbound to ERP
Per-invoice cash receipts, credit applications, short-pay records with reason codes, pay-on-account allocations, surcharge line items, and tokenized payment-method references, written the moment the customer authorizes.
More than 25 ERP connectors
NetSuite, Acumatica, Dynamics 365 BC and F&O, Dynamics GP and NAV, SAP S/4HANA Cloud and ECC, Sage 100, 300, and Intacct, Oracle EBS, Epicor P21, Kinetic, Eclipse, and Eagle, Infor SX.e and CloudSuite, SYSPRO, Workday, Tyler, and more.
No ERP modifications
Clarity Connect uses only documented, supported integration points: no schema changes, no ERP-side custom code, and no plugins to maintain across upgrades. For cloud ERPs (NetSuite, Acumatica, Dynamics 365 BC, SAP S/4HANA Cloud), Clarity Connect talks directly to the ERP's cloud APIs. For on-premise ERPs (Dynamics GP and NAV, Sage 100 and 300, SAP ECC, Oracle EBS, SYSPRO, Epicor P21, Eclipse, and Eagle), it uses a lightweight outbound-only secure agent that calls from inside your network, with no inbound firewall ports, no VPN tunnel, and no public ERP exposure.
Security, PCI scope, and B2B authorization controls
B2B payments touch stored tokenized credentials, multi-contact authentication, and authorization artifacts on recurring debits. Payment Hub pushes your deployment to the lightest compliance scope available while supporting the role-based authorization B2B customers need.
Cards and ACH accounts are tokenized at the gateway's PCI-scoped vault. Raw PAN and raw bank credentials never touch Payment Hub's infrastructure and never touch your servers. Because cardholder data is captured and stored entirely inside the gateway's environment through hosted fields or a tokenization SDK, your PCI self-assessment drops to SAQ A, the lightest self-assessment available.
Each customer account can have multiple authorized contacts (AP clerk, controller, purchasing manager) with role-based spending authority: read-only, pay up to a threshold, full payment authority, or pay-on-account approval. Every recurring or one-time ACH debit captures NACHA-required authorization, by electronic signature or audit-trailed click-to-authorize, with the two-year retention window NACHA requires, and SEC code selection (CCD, CTX, WEB, TEL, PPD) happens automatically.
Commercial-card Level 2/3 enrichment is automatic: line-item, tax, customer-code, and PO reference data flows from the ERP to the gateway on every eligible transaction, maintaining interchange-tier qualification with no manual rekeying, so the payment process keeps its savings on every transaction. Clarity Ventures operates to SOC 2 Type II standards, with security, availability, confidentiality, and data-handling controls independently audited on an ongoing basis. For on-premise ERPs, the outbound-only agent means no inbound firewall ports, no VPN tunnel, and no public ERP exposure.
Frequently Asked Questions
Why do consumer-style checkout pages not work for B2B invoice payments?
Consumer checkout assumes one buyer paying for one order from a cart. B2B invoice payments are almost the opposite: a customer account with many open invoices, multiple authorized buyers per account, PO references, project or job tracking, credit memos sitting unapplied, short-pays with reason codes, commercial cards that qualify for Level 2/3 interchange savings, and high-dollar amounts where ACH is the economics-correct default. Clarity Payment Hub is built for that shape: a list view of open invoices, multi-invoice selection, credit application, short-pay handling, and commercial-card data enrichment in one branded self-service portal.
Can customers pay multiple invoices in one transaction?
Yes, and this is one of the most-used B2B flows in Payment Hub. From the open invoices list, a customer selects any number of invoices (three, thirty, or three hundred), Payment Hub sums the total, runs a single authorization against the selected payment method, and posts individual cash receipts back to the ERP against each selected invoice. One customer click, one customer-facing transaction, and clean per-invoice cash application in the ERP. For commercial-card transactions, Level 2/3 data enrichment runs on every eligible invoice in the batch automatically.
How does Payment Hub handle commercial cards and Level 2/3 data?
When a B2B customer pays with a qualifying commercial card (Visa or Mastercard purchasing, corporate, or fleet card), Payment Hub pulls the line-item detail, sales tax, customer code, PO reference, freight, duty, and product codes from your ERP and passes them to the underlying gateway on every eligible transaction. This qualifies the card for the lowest Level 2/3 interchange tiers, commonly saving 0.5 to 1.0 percent per transaction (roughly $250 to $500 on a $50,000 invoice) with zero work for the customer or your AR team. It works on Worldpay, Cybersource, Fortis, PayTrace, Stripe, Braintree, Authorize.Net, Global Payments, and other supported gateways.
What happens when a customer wants to apply a credit memo to an open invoice?
The customer sees available account credits in the portal alongside the open invoices and applies them with a click. Payment Hub validates that the credit is applicable (same customer, open balance, no prior application), updates the invoice balance in real time, posts the credit application to the ERP, and surfaces any remaining balance for payment. If the credit covers the invoice in full, the invoice closes as satisfied-by-credit; if partial, the remaining balance stays open for payment by another method. The AR team does not field the phone call, and the ERP stays in sync.
Can customers make partial or short payments?
Yes. Payment Hub supports partial payments with optional reason codes, for example a customer paying $9,500 on a $10,000 invoice with a short-pay reason of "Damaged goods" or "Return pending." The paid portion posts to the ERP as an applied receipt, the unpaid balance stays open with the reason code attached, and dunning stops on the paid portion and continues on the remaining balance only. The short-pay exception routes to your AR team's worklist with the reason code, the customer history, and the invoice detail, so AR works dispute resolution rather than mystery-amount investigation.
Does this work for customers with multiple authorized buyers?
Yes. B2B customer accounts commonly have multiple authorized contacts, such as an AP clerk, controller, purchasing manager, or owner, each with different permissions. Payment Hub supports per-contact authentication and role-based access at the customer-account level: a junior AP clerk can view open invoices and submit payments up to a dollar threshold, while a controller has approval rights on larger payments or pay-on-account. Saved payment methods live at the account level, so any authorized contact can charge the same stored card or ACH without re-entering credentials.
What about phone-in payments from customers who will not use a portal?
Payment Hub supports MOTO (Mail Order / Telephone Order) entry through an AR-staff Virtual Terminal. When a B2B customer calls in, your AR rep opens the account in Payment Hub, selects the invoices the customer wants to pay, and keys in or selects a tokenized card or ACH on file. Level 2/3 data is pulled from the ERP automatically, even on phone-entered transactions, so commercial-card interchange savings apply regardless of channel. The MOTO payment posts to the ERP through the same real-time pathway as portal transactions.