The Payments Podcast · 2026-04-07 · 14 min
Key moments - from our scoring
Substance score
52 / 100
Five dimensions, 20 points each
Nacha's 2026 rule changes represent a coordinated effort to modernize ACH payments and combat fraud through standardized data and collaborative risk management. Mark Dixon, senior consultant at Nacha Consulting Services, explains that while day-to-day payment processing won't feel dramatically different, participants must take more care during transaction origination and use enriched data fields - marking payments as payroll, CCD, or other codes - to flag anomalies. The ODFI and RDFP now have explicit monitoring requirements, enabling them to catch mismatches (like payroll marked transactions going to consumer accounts). Alongside these compliance changes, Nacha is raising same-day ACH transaction limits to $10 million to support large B2B wholesale payments and remain competitive with faster payment rails. The changes align with broader industry trends toward treasury modernization, stablecoins, and agentic AI workflows, while ensuring ACH data maps cleanly to ISO 20022 standards for international transactions. Critical deadlines are March 20 and June 19, 2026 (effective June 22).
The first deadline is March 20, 2026, followed by the main deadline of June 19, 2026 (effective June 22 due to the holiday). All industry participants must be compliant by these dates.
It allows large-dollar wholesale and B2B transactions to leverage same-day ACH functionality, which was previously limited to smaller amounts. This gives corporates the speed and flexibility of same-day settlement for high-value payments.
ACH transactions now include standardized purpose codes (payroll, CCD, etc.) and enriched addenda records. Originators, ODFIs, and RDFIs can use these fields to flag anomalies - for example, a payroll-marked CCD record going to a consumer account signals a potential mismatch.
No major overhauls are needed; the rules codify best practices that should already be in place. The main shift is asking participants to take slightly more time during payment origination to verify transactions make sense before sending them.
Nacha's addenda records now map to ISO 20022 formats, enabling international ACH (IAT) transactions to carry standardized, data-rich information that meets global compliance and transparency requirements.
Our reviewer’s read on each dimension, with quotes from the episode.
The episode delivers a solid overview of Nacha's 2026 rule changes with some useful clarifications on fraud prevention mechanisms and data standardization, but relies heavily on high-level summaries and marketing framing rather than surprising operational insights. The guest explains what the rules codify (best practices already in place) but offers limited concrete detail on how these changes actually disrupt current workflows or create unexpected challenges.
these rule changes are really intended to codify risk management practices that probably should already be in place today
Maybe we just take a little bit more time to go: Does this make sense? Does something look a little bit odd about this?
The framing around standardized data enabling risk detection across the payment journey (originator, ODFI, receiving institution) is sound but not novel - layered monitoring and data enrichment are now standard industry thinking. The stablecoins and agentic AI discussion feels tangential and trendy rather than original analysis of the actual rule changes. No contrarian or first-principles thinking emerges.
That can happen at the originator level, even when I'm just inputting the information and I'm flagging my own transactions to make sure they make sense
stablecoins is one area in particular that's a huge, huge buzz for the industry
Mark Dixon holds a senior consultant title at Nacha Consulting Services, giving him clear inside knowledge of the rules being implemented. However, his role is consultative/advisory rather than that of an operator who has lived through large-scale payment system implementations or fraud scenarios firsthand. He speaks authoritatively about Nacha's intentions but not from deep operational scars or competitive insights.
Mark Dixon, senior consultant with Nacha Consulting Services
we've displayed this visually - like a puzzle
The episode names key deadlines (March 2026, June 19/22) and transaction types (CCD records, payroll marking, IAT transactions) but provides minimal concrete examples, metrics, or dollar impacts beyond the $10 million same-day ACH limit. Claims like 'everybody slows down a little bit' and fraud detection improvements lack supporting data, timelines, or case evidence that would demonstrate real-world impact.
your March 20 is going to be the first deadline
Nacha has been working on raising the same day ACH transaction limit to $10,000,000
The host asks competent open-ended questions and attempts thematic follow-ups, but rarely pushes back on assertions or demands specifics. Questions like 'what's going to feel different' and 'explain how better data helps' are softball invitations for the guest to deliver prepared talking points. No challenging follow-ups when claims lack evidence, and the stablecoins/AI tangent goes unquestioned despite weak connection to the core topic.
For corporates and their banks, how will new risk management and transparency rules impact day-to-day payments?
Exactly. It's being said that new risk-based monitoring rules and data standardization, like marking ACH payments as payroll or purchase, work hand in hand.
Computed from the transcript - who did the talking, and the words that came up most.
New Nacha rule changes are raising the bar for ACH fraud prevention, data clarity, and shared accountability across the network.
Transcribed and scored by The B2B Podcast Index.
Speaker 0: The Payments Podcast from Bottomline. Owen McDonald (Host): Welcome to The Payments Podcast. I'm your host, Bottomline Managing Editor, Owen McDonald. The B2B payments sector is buzzing about new Nacha rule changes centered on stronger fraud protections, improved data clarity, and network modernization. This phased project touches on domestic and cross-border payments as well as higher transaction limits and more. To walk us through what's new, we're very glad to be joined by Mark Dixon, senior consultant with Nacha Consulting Services. Mark Dixon, welcome to The Payments Podcast. Mark Dixon (Guest): Yes. Thanks for having me. Owen McDonald (Host): We're very, very happy you're here, Mark. Kicking it right off, if we zoom out over the next 18months of the Nacha rule changes starting in March 2026, what's the overarching theme, Mark? When we spoke, it was framed as a compliance for all parties, quote, unquote. Expand on that if you could. Mark Dixon (Guest): Yeah. So, obviously, starting this year, a big portion of these rule changes are designed to have all industry participants actively involved in the process of identifying fraud scenarios. So a big portion of this is really to get everybody on the same page and working collaboratively on identification, and then also working towards potential recovery scenarios if things are caught after the fact. But I like to talk about it from a more proactive standpoint, versus reactive. Historically, especially with credit push fraud scenarios, I think the industry has been much more reactive in the way that we've identified and handled those. And these, rule changes are really designed to help the industry participants be much more proactive in identification and then recovery, and acting upon that. Owen McDonald (Host): For corporates and their banks, how will new risk management and transparency rules impact day-to-day payments? What's going to feel or seem different to users, and what are the most critical deadlines pertaining to this in 2026? Mark Dixon (Guest): Yeah, great question. I would like to say that industry participants won't see a huge change to the way that they're doing their payment processing today because our new rule changes are really intended to codify risk management practices that probably should already be in place today. What I think you might find, though, is everybody slows down a little bit in those senses of urgency where we're trying to push payments out the door because we have a million things going on. Maybe we just take a little bit more time to go: Does this make sense? Does something look a little bit odd about this? And should I take a little bit of time and care with this before I let that payment leave the door, and potentially be a fraud scenario? So that's where I think the industry will see these business participants and and corporate originators going. Let's look at what we're doing today. I do think over time, we'll see an evolution because I think we're going to identify gaps. I think we're going to say, 'Oh, we're doing all these processes. Maybe we need some scalability with it?' Maybe that means technology enhancements, process changes. I think that's where the industry will go. When we're looking at this year, obviously, your March 20 is going to be the first deadline for folks to meet, and then everybody is going to need to meet the June 22 deadline. It's actually June 19, but with the holiday, June 22 is the effective date for all industry participants. Owen McDonald (Host): Those are important dates for sure! Mark, Nacha has been working on raising the same day ACH transaction limit to $10,000,000. How would that change fit into Nacha's longer term plan for the network? Is it a way of maintaining parity across payment rails while also managing risk, for example? What's behind that? Mark Dixon (Guest): So if if you look at the history of same day ACH, which to me is really just modern ACH, it's the way ACH should work, because you should have the flexibility of picking an effective entry date that's either today or the future depending on what your use case is for it. Right? So the pace of same day ACH and limit increases kind of go along with how industry participants view the risk around it. Financial institutions, in particular, were looking at this as 'oh well, you know, faster payments means faster fraud'. We used to hear that a lot! I think as everybody's gotten more comfortable, they've been like 'you know what? It's okay for that limit to be higher.' We have an expectation and a demand now where industry participants that are going to leverage same day ACH need those limits to be higher. There is some synergy, obviously, across other faster payment mechanisms with the limit change increase as well, sure, but to me it's just the natural evolution of same day ACH and ACH modernizing that's leading us to these increased limits. Owen McDonald (Host): I would say that B2B transactions are greatly implied in there, wouldn't you? Mark Dixon (Guest): Yes. Because it allows those participants that are doing those large dollar payments, those wholesale type of transactions, the ability to leverage same day ACH functionality, which is really critical for them. Owen McDonald (Host): Exactly. It's being said that new risk-based monitoring rules and data standardization, like marking ACH payments as payroll or purchase, work hand in hand. Mark, explain how better standardized data helps companies spot ACH anomalies with higher accuracy. Mark Dixon (Guest): Well, this is a great tool and, actually, we've displayed this visually - like a puzzle. These particular descriptions are part of that puzzle, and they kind of sit on top. And the reason for that is because all industry participants now have the data richness aspect where they can monitor and they can flag transactions that potentially seem anomalous. That can happen at the originator level, even when I'm just inputting the information and I'm flagging my own transactions to make sure they make sense and that there's not something weird going out. The ODFI (the originating financial institution) now has that data to look at as well, and they can flag potential scenarios where it's being used correctly or it's being used incorrectly, or it's a potential trigger for a transaction that just doesn't make sense at all. Similarly, once you get those now to the receiving institution who now also has monitoring requirements, they can use that data to do mismatches. So they can look at purpose mismatches. Maybe you have a CCD record, which is a corporate transaction going into a consumer's account, and it's marked as payroll. Well, that doesn't make sense. Why would that be going into that account at all? So there's just those potential scenarios where the data richness can help us trigger and look for those anomalous transactions, which is a big part of this new rule set. Owen McDonald (Host): That's very important, I think, for the integrity of the system, and I'm quite sure that's going to become clear pretty quickly. Moving on, Nacha's second annual 'Smarter, Faster Payments Conference' is any day now. How is the narrative around B2B payment trends generally changing at this year's event, Mark? What are the innovations, like agentic AI, that are creating the most attendee buzz, would you say? Mark Dixon (Guest): I would say, obviously, stablecoins is one area in particular that's a huge, huge buzz for the industry. The legitimization of the Genius Act, which really helped us figure out that we can all play in this space - people are trying to figure out exactly how to do that. But it created the opportunity for everybody to think 'how is this modernizing?' And I've heard lots of treasury folks, in particular, thinking about what does stablecoins mean from a liquidity management standpoint or for cross-border transactions? How does it actually change what I'm doing in the treasury space? To your point, AI continues to be a hot topic. Agentic AI is really interesting because you have the potential for completely automated workflows. Or I could be a treasury person that says, hey, I want to consolidate my cash flows into my master account. I want you to give me the best path forward, perfect exchange rates, making sure that I'm maximizing returns and that when it ends up in the account, I'm not losing out on the initial value that I received in localized currency. That's all something that potentially an agentic model could accomplish. And those are definitely conversations that I think you're likely to hear at Smarter, Faster Payments, as everybody's really excited about this whole idea of treasury modernization. Owen McDonald (Host): Okay. Last question. We've just come through the ISO 20022 migration for financial messaging on Swift. Nacha is changing its own rules around international ACH transactions and more. How are these changes running in parallel, Mark? What extra transparency does this give to FIs and corporates trying to meet global expectations while steering clear of fraud? Mark Dixon (Guest): Yeah. So, obviously, we have our our traditional addenda records, which contain the details, the remittance information, that 'payment story' so to speak. And our ability to support what's happening from a mapping perspective with ISO records and data richness is really critical. So the idea of making IAT (international ACH) transactions more data rich and more standardized was a really critical aspect to make sure that data could be meaningful. And Nacha does support data mapping from an ISO perspective. So we obviously are not an ISO-formatted payment rail, but addenda records can be formatted to meet ISO intake so that information can be very meaningful from a global perspective. Owen McDonald (Host): Okay, very good! Business payments are getting smarter, faster, and less friendly to fraudsters. This has everything to do with changes being made by Nacha to the ACH network this year and next. Keep a sharp eye on those technical deadlines because fortune favors the prepared, especially in business payments. Our thanks again to Nacha's Mark Dixon for his sharp insights. To our audience, the smartest people in B2B payments, thanks for listening. Hit subscribe. Catch us again on your favorite podcast platforms, including Apple, Spotify, Blueberry, iHeartRadio, and YouTube. Bye for now.
Speaker 0: The Payments Podcast, from Bottomline.
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