Best B2B Customer Payment Portals in 2026

The best B2B customer payment portal is the one that lets your customers see every invoice and pay it without emailing your team, on the rails they use. For most teams consolidating collections, cash application, and payments in one place, Monk is the strongest fit. Versapay is a good fit for collaborative AR, Billtrust for mid-market and enterprise billing, HighRadius for enterprise order-to-cash, Paystand for lowering payment costs, BILL for small businesses running AP and AR together, and Stripe Invoicing for simple per-invoice payment links. Below is how they compare and when each one makes sense.

What is a B2B customer payment portal?

It is a branded, self-serve place where your customers log in to view their invoices, see what they owe, and pay you, without asking your team to resend a copy or dig up bank details. A good portal shows open and overdue balances, supports more than one payment method, and keeps a record of what has been paid. The better ones connect the payment back to your ledger so the invoice is marked paid and the follow-up stops on its own.

What to look for

A few criteria separate a portal that gets used from one that sits idle:

• Payment methods. ACH for the low-cost default, plus wire, check, or card for the customers who need them.
• A full account view. Every invoice with live status, balances, aging, payment history, statements, and credit memos.
• Self-serve documents. Downloadable invoice and statement PDFs, and shared files like your W-9.
• Autopay. Let recurring payers enroll once so future invoices clear automatically.
• Reconciliation. The payment should apply to the right invoice and update your ledger without manual matching.
• Fit with the rest of AR. A portal is most useful when it sits on the same platform as collections and cash application.

How we picked

We compared the customer-facing payment portals of leading AR and payments platforms against the criteria above, using each vendor's public product information, and described each by the job it fits best. We build Monk, so weigh its inclusion with that in mind. The other tools are described from their own materials, and payment methods and pricing should be confirmed with each vendor before you buy.

The best B2B customer payment portals in 2026

1. Monk: best for consolidating collections, cash application, and payments

Monk is an AI-native accounts receivable platform whose Payment Hub gives each of your customers a branded self-serve portal. Because the portal runs on the same platform as Monk's AI collections agents and cash application, a payment applies to the invoice and stops the follow-up automatically. Monk also integrates with Stripe, and more than $2 billion in receivables run on Monk today.

• Best for: teams that want the portal, collections, and cash application in one system rather than three.
• Key features: every invoice with live status, balances and aging, payment history, statements, credit memos, downloadable PDFs, shared documents like your W-9, and autopay.
• Payment methods: ACH, wire, check, and credit card, plus autopay.
• Pricing: custom, flat pricing with no percentage of revenue taken.
• Consider: Monk is a full AR platform, so it is more than teams who only want a standalone pay link.

2. Versapay: best for collaborative AR

Versapay's Collaborative AR pairs a customer portal with in-app messaging and dispute resolution, so buyers and sellers can sort out questions in the same place they pay. It also offers ERP-embedded payment processing and AI cash application.

• Best for: teams where disputes and back-and-forth with customers are the main thing slowing payment.
• Key features: pay in full, partially, or across multiple invoices, scheduled recurring payments, credits, in-app messaging, and dispute resolution.
• Payment methods: card, debit, ACH, virtual cards, and bank payments.
• Pricing: custom, contact sales.
• Consider: it is geared to collaborative AR and ERP-embedded payments, which may be more than the smallest teams need.

3. Billtrust: best for mid-market and enterprise billing

Billtrust leans billing-and-payment-led, with a customer portal for viewing and paying invoices, strong invoice delivery, payment acceptance, and cash application. It fits finance teams that already have a receivables process and want to improve how invoices go out and how payments come in.

• Best for: mid-market and enterprise billers who want a portal on top of solid invoice delivery.
• Key features: customer portal, multi-channel invoice delivery, payment acceptance, and cash application.
• Payment methods: card and ACH.
• Pricing: custom, contact sales.
• Consider: it is built for teams that already have a receivables process and is oriented to mid-market and enterprise.

4. HighRadius: best for enterprise order-to-cash

HighRadius is built around broad, AI-driven order-to-cash: credit, collections, deductions, disputes, payment processing, and cash application, with the ability to work across multiple company codes. Its customer payment capability sits inside a larger enterprise suite.

• Best for: large teams scaling toward enterprise volumes that need deep order-to-cash automation.
• Key features: credit, collections, deductions, disputes, payment processing, cash application, and multi-entity support.
• Payment methods: card, ACH, and enterprise rails.
• Pricing: custom, enterprise pricing.
• Consider: the enterprise scope and implementation make it a better fit above a certain size.

5. Paystand: best for lowering payment costs

Paystand offers a branded or embedded checkout and billing portal where customers can review payments, get receipts, and pay by several methods. Its model emphasizes a payments network designed to reduce transaction fees, so it competes on cost.

• Best for: teams focused on cutting the cost of accepting payments.
• Key features: branded or embedded checkout, billing portal, receipts, and recurring payments.
• Payment methods: card, ACH, eCheck, and digital wallets.
• Pricing: subscription with a payments-network model, contact sales.
• Consider: it centers on its payments network, so weigh the fit with the rails your customers already use.

6. BILL: best for small businesses running AP and AR together

BILL (formerly Bill.com) offers accounts receivable alongside its widely used accounts payable product. You can set up auto-charge, autopay, and automated reminders, with tracking for customer accounts, late payments, and DSO.

• Best for: small businesses that want AP and AR in one familiar tool.
• Key features: invoicing, auto-charge and autopay, automated reminders, and AR tracking, alongside accounts payable.
• Payment methods: ACH and credit card.
• Pricing: published subscription plans.
• Consider: AR is one part of a broader SMB suite that leads with payables.

7. Stripe Invoicing: best for simple per-invoice payment links

Stripe Invoicing gives each invoice a hosted invoice page, a secure URL where a customer can view and pay. It is developer-friendly and quick to set up.

• Best for: teams that want a fast, simple pay link per invoice.
• Key features: hosted invoice page per invoice, saved payment methods, and quick setup.
• Payment methods: card, ACH direct debit, and bank transfer.
• Pricing: a per-invoice fee plus payment processing fees.
• Consider: it centers on the single invoice rather than a full account portal with balances, statements, and documents.

Comparison at a glance

How to choose

Start with where payment stalls for you. If customers cannot find invoices or your team is stitching payments back to the ledger by hand, a portal that sits on the same platform as collections and cash application, like Monk, removes the most steps. If disputes are the bottleneck, Versapay's collaboration tools help. If your priority is invoice delivery at mid-market or enterprise scale, look at Billtrust; for deep enterprise order-to-cash, HighRadius. If cost of acceptance is the issue, weigh Paystand. If you are a small business already living in BILL, its AR is the simplest path, and if you only need a clean pay link per invoice, Stripe Invoicing is quick to stand up.

For a deeper look at what a strong portal includes, see how to let B2B customers pay invoices online and the Monk Payment Hub.