The State of B2B Ecommerce Payments: What Manufacturers and Distributors Need to Know in 2026

B2B ecommerce has modernized almost everywhere except payments. Buyers now browse digital catalogs, configure complex orders online, and expect a seamless purchase experience. But when it is time to pay, too many manufacturers and distributors still push buyers back into manual workflows: an emailed invoice, a PDF purchase order, a follow-up call to accounts receivable.

The numbers confirm the gap. According to Nacha, there were 7.3 billion B2B ACH payments in 2024, with Same Day ACH surpassing one billion transactions for the first time. Yet an estimated 40% of all B2B payments in the US are still made via paper check, according to PYMNTS and CheckAlt. Meanwhile, 63% of US businesses reported check fraud in 2024. Nearly half of all B2B invoices are paid late, and 8% are written off entirely, according to Atradius's 2024 B2B Payment Practices report.

The B2B payment stack is not just an operational inconvenience. It is a direct driver of revenue leakage, customer churn, and cash flow instability. This guide covers the full landscape of B2B ecommerce payment methods, how Shopify Plus handles B2B payments natively, how Shopify Functions enable payment customization at scale, and how ERP integration via Uncap Connect closes the loop between order placement and financial reconciliation.

B2B vs. B2C Payments at a Glance

The 9 Core B2B Ecommerce Payment Methods

Understanding the payment rails available to B2B buyers is the foundation for building a payment stack that serves manufacturers, distributors, and wholesalers. Each method carries different tradeoffs on settlement speed, cost, fraud risk, and operational burden.

1. ACH / Bank Transfer

ACH (Automated Clearing House) is the most widely used B2B payment rail in the United States. It moves funds electronically between bank accounts using routing and account numbers. With 7.3 billion B2B ACH transactions processed in 2024 and Same Day ACH crossing one billion transactions, ACH has become the backbone of high-volume B2B payment operations.

ACH is favored because processing costs are low (often $0.25 to $1.50 per transaction versus 2-3% for card), it supports large transaction values without practical limits, and it integrates well with ERP accounts payable systems. Same Day ACH, introduced by Nacha in 2016 for credits and 2017 for debits, has reduced the historical 2-3 day settlement window to within hours for most transactions.

For Shopify Plus stores, ACH is typically presented as an offline payment method, with the order created as pending payment and reconciled manually or via ERP integration when the transfer clears.

Best for: Regular high-value orders, recurring invoices, accounts where the buyer-seller relationship is established.

2. Net Payment Terms (Trade Credit)

Net payment terms, commonly Net 30, Net 60, or Net 90, allow buyers to receive goods and pay within a defined period after delivery or invoice date. Trade credit remains the dominant payment mechanism in wholesale and distribution because it aligns with how B2B procurement cycles actually work: buyers need inventory before they can generate revenue to pay for it.

Shopify Plus supports net payment terms natively through its B2B feature set. Terms are configured at the company or company location level in the Shopify admin. When a buyer with Net 30 terms checks out, Shopify creates the order with a deferred payment due date 30 days from the order date, marks the order as payment pending, and issues an invoice. No card is charged at checkout.

This is a structural advantage over platforms that require third-party apps to replicate net terms behavior. Shopify Plus merchants can configure Net 30, 60, and 90 terms per account without additional subscriptions, and the payment due date flows through to ERP systems via Uncap Connect as part of the order payload.

Best for: Established wholesale accounts, repeat buyers, manufacturers and distributors where order values exceed typical card limits.

3. Wire Transfer

Wire transfers settle in real time (domestically) or within 1-5 business days (internationally). Funds are transferred directly between bank accounts via SWIFT or Fedwire and become available immediately upon receipt, unlike ACH which processes in batches.

For high-value international transactions, wire transfers are often the only practical option. They carry no practical upper limit on transaction size and are difficult to reverse once initiated, which works in the seller's favor for large orders.

The downside is cost: domestic wire fees typically run $15-30 per transaction on the sending side, with additional receiving fees. For lower-value or recurring domestic payments, ACH is more cost-effective.

Best for: International B2B transactions, high-value one-time orders (capital equipment, large inventory builds), buyers in regions without ACH infrastructure.

4. Paper Checks

Paper checks still account for approximately 40% of US B2B payments despite persistent fraud exposure. They remain in use largely because of inertia in industries with long payment cycles and legacy accounting systems, not because of any genuine advantage.

The fraud problem is significant. The 2024 figure of 63% of US businesses experiencing check fraud reflects a trend that has accelerated with postal theft (the USPS reported a 400% increase in postal robberies since 2019). Paper checks also carry high processing costs when labor is factored in: the average cost to process a paper check, including receiving, depositing, and reconciling, runs $4-20 per check depending on your organization's labor costs.

For Shopify Plus merchants still accepting check payments, the order should be created as pending payment and manually marked paid once the check clears. Migrating high-frequency buyers to ACH or EFT reduces processing cost and fraud exposure with minimal buyer friction.

Best for: Legacy accounts resistant to change. Worth actively migrating away from for any buyer placing more than 2-3 orders per month.

5. Credit and Debit Cards

Cards are the fastest way to accept B2B payment and are familiar to all buyers. For orders under approximately $10,000, corporate cards are a practical option and are increasingly issued as virtual cards that generate unique credentials per transaction.

The drawbacks for B2B are cost and limit constraints. Card interchange fees (typically 2-3.5% for corporate cards) are expensive on large orders. A $50,000 order processed on a corporate card carries $1,000-1,750 in interchange costs. Many buyers also hit card spending limits that require splitting orders or switching to another rail.

On Shopify Plus, credit card payments for B2B buyers can be configured via vaulted payment methods: a buyer's corporate card is stored securely (tokenized) at the company account level and can be reused for repeat orders without re-entry. This reduces checkout friction for high-frequency B2B buyers who prefer card for its familiar reconciliation on monthly statements.

Best for: Smaller B2B orders under $10,000, new customer relationships, buyers who prefer credit card float.

6. Virtual Cards

Virtual cards generate unique payment credentials for each transaction, including single-use card numbers assigned to specific suppliers, amounts, and time windows. They are issued by corporate card programs (Visa, Mastercard, Amex) and managed via AP automation platforms.

According to Juniper Research, virtual cards are the fastest-growing B2B payment channel, projected to see a 370% increase in transaction value over the next five years. The growth is driven by stronger fraud protection (a compromised virtual card number cannot be used for any other transaction) and better reconciliation (each virtual card maps directly to a PO or invoice).

For Shopify Plus merchants, virtual cards are processed identically to standard credit cards. The reconciliation benefit sits on the buyer side, not the merchant side, but accepting them removes payment friction for enterprise buyers running AP automation programs.

Best for: Enterprise buyers using AP automation platforms, high-security procurement environments, suppliers dealing with large corporate buyers.

7. Buy Now, Pay Later (BNPL) for B2B

B2B BNPL allows buyers to defer payment or split it across installments, with the BNPL provider paying the merchant immediately and assuming credit risk. The market is expanding rapidly: Allied Market Research projects B2B BNPL growing from $90.6 billion in 2020 to $3.98 trillion by 2030.

B2B BNPL providers (Mondu, Hokodo, Playter, Resolve) offer terms similar to net terms but with faster credit decisions and no merchant credit risk. The provider runs an instant credit check on the buyer and approves or declines in seconds, removing the resource burden of internal credit management.

For Shopify Plus merchants, B2B BNPL can be integrated via app partners and surfaced as a payment option at checkout using Shopify Functions Payment Customizations, limiting BNPL options to buyers who qualify and hiding them for accounts already on net terms.

Best for: SMB buyers who need flexible terms but do not qualify for account-level net terms, new customer acquisition, expanding wallet share with existing accounts.

8. Real-Time Payments (RTP and FedNow)

Real-time payment networks, specifically The Clearing House's RTP network and the Federal Reserve's FedNow service (launched 2023), settle in seconds, 24 hours a day, 7 days a week. Unlike ACH, which processes in batches, RTP and FedNow credit funds immediately and irrevocably.

Practical adoption in B2B ecommerce is still early. As OroCommerce's 2025 analysis notes, RTP and FedNow are live and growing but buyer-side adoption has gaps. Not every business bank account supports receiving RTP or FedNow payments, which limits utility for widespread deployment.

The clearest B2B use case today is release-on-receipt: a distributor ships goods once they can confirm real-time payment, eliminating the risk of shipping before ACH clears. For high-value shipments where the seller carries credit risk, this is a meaningful operational improvement.

Best for: Distributors shipping high-value goods who want instant payment confirmation before release, AP automation platforms managing time-sensitive supplier payments.

9. Digital Wallets and Payment Platforms

PayPal Business, Stripe, and similar digital payment platforms are more relevant to B2B ecommerce than they were five years ago. For international buyers, PayPal in particular is a familiar and accessible option that avoids the friction of setting up wire transfer banking arrangements.

These platforms carry higher fees than ACH (typically 2.9% + $0.30 for PayPal Business) and are more suitable for smaller or one-off B2B transactions than high-volume recurring orders. Their primary value in a B2B context is as a fallback for buyers who cannot or will not set up bank transfer arrangements.

For Shopify Plus stores, payment platforms are integrated via the Shopify Payments gateway or third-party integrations and can be surfaced at checkout alongside other payment options.

Best for: International buyers without convenient wire/ACH access, one-off purchases, buyer acquisition scenarios where removing friction matters more than processing cost.

Shopify Plus Native B2B Payment Configuration

Shopify Plus includes a native B2B feature set that eliminates the need for app workarounds to handle the most common wholesale payment requirements. Here is how each component works:

Net Payment Terms Configuration

Net terms are configured per company or company location in the Shopify B2B admin (Settings > Customers > Companies). You can assign different terms to different locations within the same company, allowing a large buyer with multiple distribution centers to have one location on Net 30 and another on Net 60 based on their payment history.

When terms are active for an account, the buyer's checkout does not present a card payment step. Instead, the order is created with a deferred due date and a "Payment due later" status. An invoice is generated automatically. The order flows to your ERP via Uncap Connect with the net terms, due date, and PO number as part of the order payload.

Vaulted Payment Methods

Buyers log in to their company account, navigate to their account profile, and save a credit card. The card is tokenized (Shopify stores a secure token, not the card number) and associated with the company account. At checkout, the buyer selects the saved card and completes the order without re-entering card details.

Vaulted cards are per-buyer, not per-company. If multiple buyers within a company account need to use the same corporate card, each buyer saves it separately. For companies with a single authorized purchaser, this is transparent. For companies with multiple buyers, it requires setup coordination.

Company Account Credit Limits

Shopify Plus allows you to configure a payment due balance limit per company. If the buyer's outstanding balance (unpaid net terms orders) reaches the limit, they cannot place new orders until outstanding invoices are paid. This prevents buyers from accumulating credit exposure beyond your configured threshold without requiring manual intervention.

PO Number Capture

Shopify Plus does not include a native PO number field in the standard checkout, but this is straightforward to implement via Checkout UI Extensions. The field is added to the information step, optionally validated for format, and stored as an order metafield that flows through to the ERP.

Payment Customization with Shopify Functions

Shopify Functions replaced Shopify Scripts (deprecated June 2026) and allow custom checkout logic at the infrastructure level. For B2B payment configuration, Payment Customizations are the most relevant API.

Payment Customizations let you show or hide payment methods at checkout based on order attributes, customer attributes, or cart contents. Practical B2B use cases include:

Hiding BNPL for net terms customers. If a buyer already has Net 30 terms configured, presenting BNPL at checkout creates confusion. A Payment Customization function hides BNPL options for any company account with active net terms.

Showing ACH only above a threshold. For orders above $25,000, show ACH and wire transfer as the primary options and suppress card payment. This steers large orders toward lower-cost payment rails automatically.

Surfacing invoice payment as default for verified accounts. For buyers with an established company account, set invoice payment (net terms) as the first option displayed at checkout. For guest buyers or unverified accounts, retain the standard card-first ordering.

Restricting payment methods by geography. For international buyers, suppress ACH (US-only) and surface wire transfer and PayPal as the relevant options.

Unlike Shopify Scripts, Functions are versionable, deployable via CI/CD, and composable. Multiple Payment Customization functions can be layered, each handling a distinct rule, rather than maintaining a single monolithic script that contains all logic.

ERP Payment Data Sync via Uncap Connect

A B2B payment strategy is only as good as its downstream integration. Order and payment data must flow accurately and in real time into your ERP system to trigger fulfillment, update accounts receivable, manage credit limits, and generate invoices.

Uncap Connect integrates Shopify Plus with NetSuite, SAP S/4HANA, Microsoft Dynamics 365, and Epicor. The payment-related data flows include:

The integration runs bidirectionally. Shopify pushes orders to the ERP in real time when they are placed. The ERP pushes payment status, fulfillment updates, and invoice data back to Shopify so buyers can view their invoice and payment history directly from their company account portal without contacting your customer service team.

This closed loop is what separates a functional B2B ecommerce payment setup from one that creates downstream reconciliation work. Without ERP integration, every net terms order requires manual data entry, every payment must be matched to an invoice by hand, and credit limits cannot be enforced at checkout because the ERP does not know what is pending in Shopify.

B2B Payment Security and Fraud Prevention

B2B payments are a high-value fraud target. The specific attack vectors differ from B2C, and the defenses need to match.

Business Email Compromise (BEC) and Vendor Email Compromise (VEC)

BEC attacks targeting B2B payments increased 119% between July 2020 and April 2021, according to Abnormal Security. In a VEC attack, cybercriminals compromise a vendor's email account and impersonate them to redirect ACH or wire payment instructions to fraudulent accounts. Because the communication appears to come from a trusted vendor, both automated and human review can miss it.

Defense requires out-of-band verification: any change to payment banking details should be confirmed via phone call to a known contact number, not via the email thread where the change was requested. Payment portal portals that display static, verified banking information (rather than relying on emailed details) reduce VEC exposure significantly.

Check Fraud

With 63% of US businesses experiencing check fraud in 2024 and postal theft at a generational high, paper checks represent the highest fraud risk in B2B payments. Positive Pay (a bank service that matches issued check details against presented checks before clearing) reduces exposure for merchants still accepting checks. The more effective solution is migrating buyers to ACH, which carries bank-level authentication and leaves a clear digital audit trail.

Card Fraud and Chargebacks

Virtual card numbers for B2B orders reduce card fraud by limiting each card number to a specific transaction. For merchants accepting corporate cards, requiring Level 2 and Level 3 payment data (line-item detail, PO number, tax amount) reduces interchange fees by 0.5-1.0% and provides richer transaction data for reconciliation.

PCI DSS Compliance

Shopify Plus maintains PCI DSS Level 1 compliance, the highest certification level, for all payment data processed through Shopify Payments. This covers card data tokenization, encryption in transit, and secure storage. Merchants using Shopify Payments do not need to manage their own PCI compliance for card data. For merchants using third-party payment gateways, PCI compliance requirements depend on the gateway and integration method.

B2B Payment Trends in 2026

Real-Time Payments Are Moving from Edge Case to Standard

The RTP network processed over 4 billion transactions in 2024. FedNow, launched in July 2023, has expanded to 1,000+ financial institutions as of early 2026. B2B adoption is growing in manufacturing and distribution use cases where release-on-receipt workflows deliver clear operational value. Expect same-day settlement to become a baseline expectation for domestic B2B transactions over the next three to five years.

Embedded Payments Are Replacing Gateway-First Architectures

Embedded payment platforms grow 20% annually, according to Softjourn. In a B2B ecommerce context, embedded payments mean payment options are native to the commerce workflow rather than bolted on via a third-party redirect. Shopify Plus with its native net terms, vaulted cards, and Checkout UI Extensions is an example of this architecture. Buyers configure, order, and pay within a single platform without switching to a separate invoicing system or payment portal.

Virtual Card Adoption Is Accelerating

Juniper Research's projection of a 370% increase in virtual card transaction value reflects enterprise AP automation programs systematically migrating from checks to virtual cards. For Shopify Plus merchants, this means more buyers will arrive at checkout with virtual card credentials generated by their AP platform. Accepting these seamlessly (no additional steps beyond standard card processing) is increasingly a baseline requirement for selling to enterprise accounts.

B2B BNPL Is Filling the Credit Gap for SMB Buyers

Large wholesale accounts qualify for net terms. SMB buyers often do not, leaving them unable to manage cash flow with deferred payment. B2B BNPL providers are filling this gap, with the market projected to reach $3.98 trillion by 2030. For Shopify Plus merchants, offering B2B BNPL via integrated partners expands the addressable market to buyers who cannot qualify for account-level credit terms.

AP and AR Automation Is Closing the Manual Processing Gap

Only 9% of AP teams are fully automated as of the most recent IFOL research, but 41% expect full automation within three years. The shift toward automated invoice matching, payment scheduling, and reconciliation is reducing the friction associated with net terms and trade credit. ERP integrations that carry structured payment data (PO number, payment terms, due dates, line items) benefit from this automation: clean data in means clean data out.

AI-Powered Payment Fraud Detection

AI-driven fraud detection tools are being deployed at the payment gateway and network level to identify anomalous payment patterns in real time. For B2B merchants, this is most relevant for detecting VEC attacks (AI flags unusual changes to banking information) and for reducing false positives in chargeback disputes (AI builds a richer context model around B2B transaction patterns that differ significantly from B2C).

Building the Right B2B Payment Stack

There is no single correct B2B payment mix. The right stack depends on your buyer profiles, transaction size distribution, geographic footprint, and ERP capabilities. That said, manufacturers and distributors running on Shopify Plus should evaluate their payment configuration against this framework:

For high-value established accounts: Net payment terms (Net 30/60/90) via Shopify Plus B2B native configuration, with ERP integration via Uncap Connect for real-time receivables management. PO number capture via Checkout UI Extension. Credit limit enforcement via company payment due balance limits.

For frequent mid-market buyers: Vaulted corporate cards for fast repeat checkout. Payment Customization functions to surface the most relevant payment method first based on account type. ACH for buyers who prefer bank transfer over card.

For new or unverified buyers: Standard card payment at checkout. Optional B2B BNPL for buyers who need flexible terms but have not yet qualified for account-level net terms. A clear "apply for a trade account" path that routes them toward the net terms setup process.

For international buyers: Wire transfer as the primary option for large orders. PayPal or equivalent digital platform as a fallback. Currency display in the buyer's local currency via Shopify Markets.

Across all segments: Real-time ERP sync via Uncap Connect so every order, payment status, credit limit update, and invoice is accurate in both Shopify and your ERP without manual reconciliation.

Ready to Modernize Your B2B Payment Stack on Shopify Plus?

Uncap has implemented Shopify Plus for 380+ B2B manufacturers, distributors, and wholesalers since 2013. We configure native net payment terms, vaulted cards, Shopify Functions payment customizations, and real-time ERP integration via Uncap Connect so your payment operations match the complexity of your business.