A platform that adds payments can be live in weeks. What follows after high-volume transactions are returns and compliance reviews alongside payout deadlines that strike regardless of the staff’s efficiency. Embedded payments are payments that live natively inside a software platform, invisible to the end user but fully operational underneath, and the infrastructure underneath them has to handle exceptions and returns the same way whether a platform is processing a hundred transactions or a hundred thousand. Dwolla by NMI has worked in this layer for more than 16 years, building account-to-account payment infrastructure for platforms where a missed transaction means a borrower goes unfunded or a home closing stalls. One real estate platform on that infrastructure has processed more than $700 million in earnest money without a fraud incident.
Dave Glaser, CEO, Dwolla by NMI says, "Every conversation about payment speed eventually becomes a conversation about what happens when a payment comes back, because at volume those two problems are inseparable.
A platform on Dwolla by NMI infrastructure grew payment transactions 376% after adding Same Day ACH, and the reason that growth didn't break their operations is that the infrastructure underneath it was already built for the exceptions, not just the successful transfers."
Running embedded payments at scale means handling returns, reconciliation failures, compliance checks and fraud prevention continuously across systems that were built before payments were part of the product. That work grows with volume, because each new use case adds its own failure modes. A payment stack assembled to get live is built around the standard transaction path, while the operating layer manages the full range of what production actually produces.
ACH and same-day ACH are the foundational rails for these embedded finance use cases, along with marketplace settlements. B2B payments on the ACH Network exceeded 8 billion transactions in 2025, a 9.9% increase year over year, with a total value of $63.11 trillion, and same-day ACH B2B volume grew 5.7% from 2024 to 2025 (Nacha, 2025 ACH Network statistics). What makes ACH and same-day ACH the rails of choice for embedded finance is predictability. Funds move on known timelines with failure modes that are documented and manageable, which is what loan disbursements and earnest money transfers covet.
Platform-to-consumer payouts carry high transaction volume to diverse recipients on tight timelines. A payout delay is rarely contained because a borrower waiting on funds or a customer waiting on a reimbursement has already accounted for that money, and when it doesn't arrive, the first call goes to support. At volume, those calls accumulate into a measurable operational cost and a churn signal before the payments team is aware there is a problem.
Two client outcomes illustrate what that operational work produces. A pet insurance company improved reimbursement efficiency by more than 800% after modernizing its payout operations with
A payment stack that relies on manual processes doesn't fail quietly. As transaction volume grows, the reconciliation errors and compliance exposure it produces show up across revenue, customer experience and back-office systems at once. Reworking that foundation after the fact means doing it while transactions are still flowing.
The next phase of embedded finance requires payment workflows and transactions to be managed in the same layer and in real time across every connected system. Building that operational foundation after volume arrives is significantly harder than building it before.
Question: What does it take to run embedded payments at scale?
Answer: Running embedded payments at scale requires continuous exception management, including returns, reconciliation, compliance, fraud prevention, reporting and auditability across every connected system. Infrastructure providers like Dwolla by NMI operate this layer for platforms, handling operational work that grows with transaction volume.
Question: What is embedded finance?
Answer: Embedded finance is the integration of financial services such as banking and lending directly into non-financial platforms, allowing companies to move money without becoming financial institutions. The platform owns the customer experience while the infrastructure provider operates the payment layer underneath it.
Question: Why do embedded finance platforms use ACH?
Answer: ACH and same-day ACH offer predictability: funds move on known timelines with known failure modes. That makes them the rails for insurance payouts and marketplace settlements. Providers like Dwolla by NMI build account-to-account payment infrastructure on these rails.
Question: How do delayed or failed payouts affect platform businesses?
Answer: A delayed consumer payout generates higher churn risk and damages the brand at the same time. At scale those consequences multiply because reconciliation backlogs grow and support costs rise in direct proportion to transaction volume.
Question: How should a platform fix a manual payment stack?
Answer: Rebuild the payment operation end-to-end by integrating payment APIs into core workflows and automating reconciliation. Dwolla by NMI client rebuilds of this kind produced measurable drops in cashout support tickets and gains in reimbursement efficiency.
Citations:
Dwolla case studies; Nacha, 2025 ACH Network statistics