B2B payment platform

B2B payment platform — AR and AP on one API.

topropay covers card and bank-rail B2B flows behind one unified API. Inbound buyer authorisations route across the connected acquirer panel; outbound supplier payouts run on the matching bank rail; B2B-fraud controls and unified reconciliation across AR and AP make the finance close one export, not two.

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BUYER corporate card / bank AR topropay B2B platform routing vault tokens B2B fraud mandate lifecycle counterparty model one ledger AR + AP AP SUPP. bank rail
Buyer → topropay → supplier · one ledger across AR and AP.
Card + bank
rails on one API
Multi-currency
capture and payout
B2B fraud
controls layered in
1 ledger
across every receipt and payout

Key benefits

Why orchestrated b2b payment processing wins on every axis

Four outcomes that show up consistently once a multi-provider orchestration layer sits in front of the merchant's B2B traffic instead of a single direct relationship.

  1. 01

    B2B payment platform across card and bank rails

    B2B traffic mixes card (corporate cards, virtual cards, purchasing cards) and bank rails (ACH credit / debit, SEPA SCT / SDD, Bacs, Open Banking). topropay puts both behind one unified API — the merchant's billing or AR system doesn't fork per rail; the platform absorbs the per-rail timing and message differences.

  2. 02

    Per-transaction routing across the connected provider panel

    Every authorisation runs through the routing engine in under 200ms. The connected provider most likely to clear that BIN / scheme / country pair wins; soft declines cascade inside the same request. Cross-border B2B traffic — where issuer / acquirer pairs disproportionately matter — benefits most.

  3. 03

    B2B fraud controls layered on standard infrastructure

    B2B payment fraud — invoice redirection, vendor impersonation, BEC-driven payment changes — gets specific controls on top of the standard PCI / SCA posture. Beneficiary-account verification, change-of-account challenge flows, dual-approval workflows and SIEM-friendly audit logs cover the patterns generic anti-fraud doesn't.

  4. 04

    One reconciliation feed across receipts and payouts

    Settlements, fees, refunds and chargebacks across every connected provider — plus outbound supplier payouts — normalise into one ledger keyed off vault tokens and counterparty IDs. Finance closes the month from one export across AR and AP.

How it works

From sub-merchant onboarding to a live b2b payment system in five stages

Five concrete stages between contract and routed multi-provider B2B traffic — across both AR (receipts) and AP (payouts) flows.

  1. 01

    Sub-merchant onboarding once

    One KYB / KYC pipeline through topropay's onboarding flow. Beneficial-owner verification, vertical-specific risk review and sandbox tenant issued at the start.

  2. 02

    Drop in the unified B2B payment API

    JSON-over-HTTPS REST surface plus SDKs. The same /v1/payments endpoint authorises card and bank-rail flows; supplier payouts use the same shape with a directionality flag.

  3. 03

    Configure routing and B2B fraud rules

    Per-policy routing (approval-, cost- or composite-weighted), B2B fraud rules (beneficiary verification, change-of-account challenge, dual-approval thresholds) and risk thresholds — all dashboard-configurable.

  4. 04

    Authorise inbound and run payouts

    Inbound buyer authorisations route across the connected panel; outbound supplier payouts run on the matching bank-rail or card-rail. Counterparty records share the same vault-token shape as customer records.

  5. 05

    Reconcile across AR and AP

    Each connected provider settles on its own schedule; topropay normalises the lot into one ledger covering AR (receipts) and AP (payouts). Daily exports drop straight into ERP or finance stack.

Main use cases

Where b2b payment processing companies earn their keep

Six merchant shapes that share the same orchestration layer but stress it differently — invoice-driven AR, SaaS, marketplaces, cross-border trade, supplier payouts and fintech-embedded B2B.

  • Invoice

    Invoice-driven AR for B2B sellers

    B2B invoices paid via hosted payment-page link (card or bank rail) or via API-initiated bank debit on agreed terms. The hosted-page link references the vault-token customer record; multi-currency capture matches the invoice currency.

  • Subs

    B2B SaaS subscriptions and seat-based billing

    Recurring card or bank-rail debits on vault tokens for B2B SaaS; seat-add or seat-remove adjustments push pro-rata captures through the same engine. Card-on-file recurring uses network tokens; bank-rail recurring uses scheme mandates.

  • Plat

    Marketplaces and platforms with B2B sellers

    Per-seller payouts in local currency on bank rails or in cards-to-virtual-card form; per-tenant reporting on AR side; B2B fraud controls layered per seller. Split payments preserve the per-seller economics.

  • Trade

    Cross-border B2B trade flows

    Cards and bank rails (SEPA, ACH, Bacs, Open Banking) under one contract for cross-border B2B trade. Multi-currency capture and settlement keep FX surface predictable; counterparty IDs travel end-to-end through the unified ledger.

  • Payout

    Supplier payouts (AP) on the same platform

    Outbound supplier payouts on the matching bank rail — SEPA SCT / SCT Inst, ACH credit, Bacs, Faster Payments. Beneficiary verification and change-of-account challenge surface alongside the payout API; dual-approval thresholds are policy-configurable.

  • Fintech

    Fintech-style B2B payments for embedded use

    Fintech B2B payments — embedded card-issuing, virtual cards for supplier payment, expense controls — connect through partner issuers and surface through the same reconciliation feed as the rest of the platform.

Platform features

Capabilities behind the best b2b payment platforms

What the platform actually ships for B2B traffic — beyond the standard orchestration features shared with consumer-side merchants.

  • Unified B2B payment API

    One REST contract across card and bank-rail flows; SDKs for web, mobile and server.

  • Multi-currency capture

    Authorise in the buyer's currency, settle in the merchant's — settlement currency per provider is a policy choice.

  • Hosted payment-page links

    Tokenised payment-page links attached to invoices; the customer clicks through, authorises against the vault, and the receipt webhook fires back into the merchant's billing system.

  • B2B fraud controls

    Beneficiary-account verification, change-of-account challenge, dual-approval thresholds, velocity rules and SIEM-friendly audit logs — tuned for B2B payment fraud patterns.

  • Smart routing engine

    Per-transaction scoring on BIN, scheme, currency, country pair and risk signals — ranked routes per authorisation.

  • Cascade & retry

    Soft declines cascade to the next ranked provider inside the same authorisation; nothing leaks back to the buyer.

  • PCI DSS Level 1 vault

    Card data captures into the platform's vault before it touches any connected provider; vault tokens drive refunds, retries and recurring.

  • Bank-rail recurring (SEPA / ACH / Bacs)

    Mandate evidence captured at sign-up; recurring debits run on the same engine as card recurring.

  • Supplier payouts (AP)

    Outbound payouts on the matching bank rail — SEPA SCT / SCT Inst, ACH credit, Bacs, Faster Payments — with beneficiary verification and dual-approval.

  • Counterparty / vendor records

    Counterparty records share the vault-token shape as customer records; one identity model spans AR and AP.

  • Operator portal

    One dashboard for receipts, payouts, refunds, disputes and B2B-fraud alerts across every connected provider.

  • Sandbox parity

    Per-environment sandbox that mirrors production — routing, cascade, mandate lifecycle, payout-rail timing and B2B-fraud scenarios.

Trust & compliance

Compliance posture for b2b payment services on topropay

Every authorisation and payout runs through a single audited environment. Merchants inherit the platform's PCI, SCA, AML and scheme-programme posture rather than carrying separate certifications per provider.

PCI DSS Level 1
Annual on-site assessment plus quarterly ASV scans; sub-merchants inherit the posture across the connected B2B-payment-services panel.
SCA & PSD2
Selective 3DS2 on the authorisation path keeps approval high in Europe without skipping the compliance bar — and applies to corporate cards where the issuer requires it.
Sanctions & AML alignment
Sanctions screening on onboarding and counterparty creation; AML monitoring tuned per merchant vertical and per acquirer's appetite.
B2B fraud monitoring
Beneficiary-account verification, change-of-account challenge and dual-approval thresholds — controls aligned with the patterns regulators flag for B2B payment fraud (CEO fraud, BEC, invoice-redirect).
Data residency
Regional data-residency options for merchants under regulators that require it; EU-resident traffic stays in-region by default.
Licensed verticals only
Licensed gaming, regulated financial services and other compliance-bound verticals supported only where current operating licences exist. Grey and black-market verticals are out of scope regardless of integration shape.

Ready to ship B2B

One platform across AR and AP. Card, bank rail, payout.

A 30-minute B2B review covers the rails relevant for your traffic — corporate cards, SEPA / ACH / Bacs, Open Banking, supplier payouts — and the B2B fraud controls and reconciliation shape that fit your finance stack.

Book a B2B review Read the API docs

Frequently asked

Buyer questions about b2b payment platform on topropay

Questions buyers ask before committing — definitions, AR vs AP, B2B fraud handling, fintech embedding and the practicalities of running cards and bank rails on the same platform.

  1. 01

    What does topropay mean by b2b payment platform?

    A b2b payment platform on topropay is the merchant-facing umbrella for B2B authorisation, capture, refund, payout and reconciliation across the connected provider panel. It covers both AR (receipts from buyers) and AP (payouts to suppliers), with one unified API, one operator portal and one reconciliation feed across cards and bank rails.

  2. 02

    How do b2b payment solutions on the platform differ from consumer-side ones?

    B2b payment solutions on the platform add B2B-specific shape on top of the standard consumer-side controls: counterparty records (vendor / customer identity), multi-currency capture, beneficiary verification on payouts, dual-approval thresholds, mandate evidence for bank-rail recurring, and AP-side reconciliation alongside AR. The orchestration core (vault, routing, ledger) is the same.

  3. 03

    What is b2b payment processing in practice on the platform?

    B2b payment processing in practice means: hosted page or API call for inbound buyer authorisations (card or bank rail), API-initiated supplier payouts on the matching bank rail, vault tokens for customer and counterparty identity, signed webhooks for every state change, and one daily reconciliation export covering AR and AP together.

  4. 04

    How does topropay compare to other b2b payment processors?

    Other b2b payment processors typically run one acquirer or one bank-rail relationship behind their API. topropay runs many — and the routing engine picks the best route per authorisation across the connected panel. The merchant trades a slightly larger up-front integration for years of optionality across providers and rails.

  5. 05

    Is there a dedicated b2b payment gateway on the platform?

    B2b payment gateway behaviour on topropay is delivered through the same /v1/payments endpoint as the rest of the platform — there's no separate B2B gateway to integrate against. The B2B-specific shape (multi-currency, counterparty records, payouts) is layered on the same gateway primitives.

  6. 06

    What b2b payment software primitives are exposed for in-house finance stacks?

    B2b payment software primitives include the vault, the routing engine, the cascade behaviour, the mandate-lifecycle engine (for SEPA SDD / ACH), the payout API, the counterparty model, signed webhooks and the unified ledger export. Each is callable independently for merchants who want to build their own AR / AP surface on top.

  7. 07

    What does the b2b payment system look like end-to-end?

    End-to-end: the buyer receives a tokenised invoice link, authorises on the hosted page (card or bank rail), the platform captures into the vault, fires a webhook into the merchant's billing system, settles on the underlying provider's cycle, and rolls the receipt into the reconciliation feed. Supplier payouts run the reverse shape — merchant-initiated bank-rail credit, signed event back, ledger row added.

  8. 08

    What b2b payment services does the platform offer beyond authorisation?

    B2b payment services beyond authorisation include the operator portal, dispute and chargeback queue, B2B fraud controls (beneficiary verification, change-of-account challenge, dual-approval), payout reconciliation (AP), scheme programme tracking, sanctions screening and a SIEM-friendly audit log.

  9. 09

    How does the platform compare to other b2b payment providers?

    Other b2b payment providers vary widely — single-acquirer card processors, bank-rail-only specialists, AP-focused providers. topropay covers both AR and AP through one orchestration layer with many connected providers behind it, so the merchant doesn't need to integrate AR and AP separately or pick one provider per rail.

  10. 10

    What's the model for handling b2b payment fraud?

    B2b payment fraud is largely about counterparty identity and account integrity, not card-side fraud. The platform layers beneficiary-account verification (confirm-of-payee where supported), change-of-account challenge flows (re-verify on bank-account changes), dual-approval thresholds (high-value payouts require a second approver), and an audit log of every change. Standard PCI / SCA controls handle the card-side fraud.

  11. 11

    What are b2b payments fintech use cases on the platform?

    B2b payments fintech use cases include embedded card-issuing for supplier payment via virtual cards (through partner issuers), embedded expense controls, B2B BNPL on the buyer side, and embedded AP automation. The fintech surfaces plug into the same reconciliation feed as the core platform.

  12. 12

    How does fintech b2b payments integration typically work?

    Fintech b2b payments integration typically means a fintech building on top of topropay's API to offer a vertical B2B finance product — embedded cards, embedded AP, embedded credit. The fintech inherits the platform's PCI posture, scheme connectivity and reconciliation; the fintech focuses on the product layer rather than the payments plumbing.

  13. 13

    What are typically the best b2b payment platforms to compare against?

    Best b2b payment platforms to compare against include consumer-platform extensions (Stripe / Adyen / Worldpay with B2B add-ons), AP-focused providers (Bill / Tipalti / Routable) and bank-rail specialists. topropay's pitch is one orchestration covering both AR and AP, with multi-acquirer routing on the card side and direct bank-rail connectivity on the AP side — fewer providers to integrate, one ledger to close from.

  14. 14

    Are b2b payment processing companies typically priced differently from consumer ones?

    B2b payment processing companies typically carry similar shape pricing (per-authorisation on top of underlying provider economics) but with interchange shapes specific to corporate cards. topropay's platform fee stays the same shape across consumer and B2B traffic; underlying interchange and bank-rail fees pass through.

  15. 15

    What's the typical scope of b2b payment processing solutions on the platform?

    B2b payment processing solutions on topropay typically include: hosted invoice payment-page links, embedded checkout for B2B SaaS, recurring card-on-file and bank-rail debits, supplier payouts on the matching rail, B2B fraud controls, counterparty records and a unified ledger across AR and AP. Categories are independent toggles; merchants enable what they need.

Related

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