Cross-Border B2B Payments in 2026: $31.7tn Market, Costs and Rails

A finance manager at a pump maker in Coimbatore pays a castings supplier in Stuttgart about EUR 40,000 every month. The money leaves on a Monday. The German side confirms receipt on Wednesday, and the amount that lands is a few hundred euros short of the invoice because an intermediary bank took a cut nobody quoted in advance. That small, recurring loss, multiplied across millions of companies, is what the cross-border B2B payments business is built on.

Business-to-business flows are the biggest and least glamorous part of global payments. They do not get the political attention of remittances or the headlines of stablecoins, yet they carry most of the money. This piece looks at how big the market actually is in 2026, what a business really pays, which rails are winning, and where stablecoins have found a genuine role rather than a press-release one.

How big is cross-border B2B, really?

Market sizing in this sector depends heavily on definitions, so it pays to be precise. FXC Intelligence, the research firm most cited on the topic, put the total cross-border payments market at $208 trillion in 2025, with wholesale (bank-to-bank and financial market) flows making up most of that volume. Strip out the wholesale layer and look at companies paying companies, and FXC's estimate of the B2B segment was $31.7 trillion in 2024, projected to reach $47.8 trillion by 2032.

The revenue picture is more interesting than the flow picture. FXC found that B2B payments by small and mid-sized businesses generated the single largest retail revenue pool, about $191 billion, even though take rates fell across every retail segment between 2022 and 2025. In plain terms: SMEs pay the most per dollar moved, and providers are fighting hard for that margin.

For context, McKinsey's 2025 Global Payments Report sizes the entire payments revenue pool at about $2.6 trillion. Commercial transactions generate 56% of payments revenue in Asia-Pacific and 54% in Europe, the Middle East and Africa. Corporate money is where banks make their living.

What a cross-border business payment actually costs

The cleanest public benchmark comes from the G20 programme run by the Financial Stability Board. In 2021 the G20 set end-2027 targets for B2B payments: a global average cost of no more than 1%, no corridor above 3%, 75% of payments available to the recipient within one hour and the rest within one business day. The FSB measures cost on a reference transfer of $20,000, counting both fees and the FX markup.

The world is moving the wrong way on cost. According to FXC's analysis of the FSB data, the average B2B cost rose from 1.5% in 2023 to 1.6% in the latest measurement, and the share of B2B corridors charging more than 3% climbed from 3.3% to 10%. Speed is not much better: the FSB's October 2025 progress report found that B2B and business-to-person services settled under 45% of payments within one business day, and judged it unlikely the 2027 targets would be met on time.

Where does the money go? Typically into four buckets:

• Sending bank fee. A flat charge per outgoing wire, often higher at the branch than online.
• FX markup. The gap between the rate you get and the mid-market rate. On larger tickets this is usually the biggest cost and the least visible.
• Intermediary (correspondent) deductions. Charged in transit when the payment hops through one or more banks, especially in thinner corridors.
• Receiving bank fee. Some banks charge the beneficiary for incoming foreign currency, which shortchanges your supplier and creates a reconciliation headache.

If you have never looked at how the correspondent chain works, our explainer on correspondent banking walks through why a single payment can touch three or four banks.

Worked example: one invoice, three routes

Take a $20,000 payment from an Indian importer to a supplier in Germany, the same ticket size the FSB uses. The figures below apply the published averages and targets; your own bank's pricing will differ, so treat this as a framework rather than a quote.

Now annualise it. A business sending 12 such payments a year at the current average pays $3,840. At the target it would pay $2,400. Hit a bad corridor and it pays $7,200. For a company running on a 6-8% net margin, the gap between $2,400 and $7,200 is the difference between a cost of doing business and a meaningful drag on profit. The same arithmetic explains why so many treasurers now ask their banks to break out the FX markup separately; once it is visible, it can be negotiated. Our guide to the mid-market rate shows how to calculate the hidden spread yourself.

The fee on the invoice is rarely the problem. The spread you never see is.

The rails: who carries the money

Despite all the talk of disruption, Swift remains the backbone. Swift reported that 89% of payments on its network reached the recipient's bank within an hour, but only around 60% of wholesale payments reached the end customer's account in that time. The delay sits in the last mile: compliance checks, batch processing and domestic system opening hours. That is why a wire can arrive at a German bank in minutes and still show up in the supplier's account a day later.

Around that core, several alternatives have grown:

• Bank-owned blockchain networks. J.P. Morgan's Kinexys reported average daily volume above $2 billion and over $1.5 trillion cumulative as of May 2025, mostly for large corporates moving money between their own accounts.
• Non-bank B2B specialists. FXC's 2025 roundup shows corporate payments revenue at Corpay up 32% year on year to $1.15 billion over the first nine months of 2025, and Payoneer's B2B revenue up 27%. These firms hold local accounts in many countries and settle domestically at each end, avoiding much of the correspondent chain.
• Linked instant payment systems. Projects such as Nexus aim to connect domestic real-time systems so a business payment can move like a local one. They are still early for B2B.
• Stablecoin settlement. Covered below, because it is the fastest-growing piece and the most misunderstood.

Where stablecoins actually fit

Raw on-chain stablecoin volume runs into the trillions, but most of it is trading and internal transfers. McKinsey and Artemis Analytics tried to isolate real payments and estimated about $390 billion in genuine stablecoin payments in 2025, annualised from December activity. Roughly $226 billion of that, about 60%, was B2B, and B2B volume grew 733% year on year.

That growth is real, but keep the scale in mind. McKinsey puts global B2B payment volume at roughly $1.6 quadrillion, so stablecoin B2B is about 0.01% of it. Asia originated about 60% of genuine stablecoin payments, which matches what the industry sees on the ground: importers in emerging markets paying Asian suppliers, often where dollar access through banks is slow or rationed.

The honest summary is that stablecoins are winning in three situations. First, corridors where correspondent banking is thin or expensive. Second, weekend and holiday settlement, when banking rails are closed. Third, treasury movements between a company's own entities, where the counterparty risk is internal. They are not yet winning in mainstream euro or dollar corridors, where the bank rail is cheap enough and the accounting, tax and compliance work of holding a token outweighs the saving. Our pieces on stablecoin payments for business and B2B settlement case studies go deeper into the mechanics and the trade-offs.

Holding or converting stablecoins can have tax, accounting and foreign exchange control consequences, and rules differ by country. Check with a qualified adviser before using them for business settlement.

Who is winning, and why

Three groups are pulling ahead. The first is large transaction banks that have invested in API connectivity and their own settlement networks; their corporate clients get faster, more predictable payments and are sticky. The second is the specialist non-bank providers, which win SMEs by quoting transparent FX and paying out locally. The third is a small set of stablecoin infrastructure firms serving fintechs and exporters in corridors where banks have retreated.

The losers are equally clear: traditional providers that rely on opaque FX spreads with mid-market clients. Take rates are already compressing, as FXC's data shows, and once a finance team benchmarks its spread, the conversation changes. The other pressure point is data. ISO 20022 messages carry far richer remittance information than the old MT format, and providers that can pass invoice references end to end save their clients real reconciliation time. See our explainer on Swift and ISO 20022 for what the richer data enables.

Practical moves for a finance team this year

1. Benchmark your spread. Take your last ten foreign payments, compare the applied rate with the mid-market rate at the time, and calculate the all-in percentage. If you are above 1.6% on tickets of $20,000 or more, you are paying more than the global average.
2. Ask who pays the charges. Wires sent with shared charges let intermediaries deduct from the principal. Check whether your bank offers a guaranteed full-amount option for key suppliers and what it costs.
3. Clean up your address data. Banks are moving to structured beneficiary addresses (town and country in separate fields). Payments with poor data get delayed or returned.
4. Map your corridors. Most firms have two or three corridors that drive the bulk of cost. Treat them separately; a single provider rarely wins every corridor.
5. Decide your stance on tokenised settlement. Even if you do not use it, know which of your suppliers or customers would prefer it, and what your accountant and bank would require. Our guide to FX risk for small businesses covers hedging, which matters more than the rail for many SMEs.

What to watch next

• December 2026: Swift's structured-address decision. Swift had planned to stop supporting unstructured addresses in payment messages in November 2026, but on 27 August 2026 it deferred the change after community requests and promised an update on timing by December 2026. About 65% of payment messages still carried unstructured addresses when the original deadline was set.
• 18 January 2027: GENIUS Act effective date. The US stablecoin law takes effect on the earlier of that date or 120 days after final rules, according to Jones Day's analysis of the OCC proposal. Clear US rules make it easier for corporate treasurers and auditors to sign off on dollar stablecoins.
• 12 June 2027: Swift's deferred standards release, covering trade, securities and tracker messages.
• End-2027: the G20 deadline. On current trends the B2B cost target of 1% will be missed. Watch whether the FSB resets the targets or adds new measures in its 2026 and 2027 progress reports.
• Swift's shared ledger. Announced in September 2025 with Consensys and more than 30 banks, the ledger's first use case is 24/7 cross-border payments. No launch date has been set; prototype results are the next milestone.

The direction is clear even if the timing is not. Business payments are slowly being pushed toward transparent pricing, richer data and round-the-clock settlement. Finance teams that measure what they pay today will be best placed to capture the savings as the rails improve.

About this researchMuffinPay InsightsIndependent analysis of stablecoins, CBDCs, cross-border payments and digital public infrastructure. Every figure is linked to its source. Read our editorial standards →