Instant Payments in Latin America: Pix, SPEI and Bre-B Compared
Pix, SPEI and Bre-B move local money in seconds at any hour, but each works only inside its own country: a payment between countries still needs another route.
A company that sells in Brazil, buys in Mexico and has a team in Colombia tends to find the same thing: inside each country the local payment arrives in seconds at any hour, but a payment between those countries still takes days and carries fees. The three central banks built instant payment systems for their domestic markets, and none was designed to cross a border.
At Soulbit Academy we compare Pix, SPEI and Bre-B using figures published by their central banks, and we explain what each solves inside its country and what none of them solves between countries. This article is informational: the three systems are public infrastructure, not Soulbit products, and Soulbit does not operate on them.
Instant payments in Latin America: what Pix, SPEI and Bre-B have in common
Pix, SPEI and Bre-B are central bank instant payment systems that move local currency between institutions of one country. Pix belongs to the Banco Central do Brasil, SPEI to the Banco de México and Bre-B to the Banco de la República of Colombia. All three are built to run continuously, without depending on traditional banking hours.
They share three traits. The first is public ownership: the central bank sets the rules and maintains the infrastructure, and financial institutions offer it to their customers. The second is currency: settlement is always in reais, Mexican pesos or Colombian pesos. The third is domestic interoperability: the payer sends from the institution they already use, without opening an account at the payee's bank.
They also share a structural limit: they are domestic. The Banco Central do Brasil states in its Relatório de Gestão do Pix 2023-2025 that Pix allows only domestic transactions, and that its arrangements for tourists work by making the Pix in reais to a Brazilian institution, which then sends the funds abroad the traditional way. The border is crossed outside the system.
For a CFO this changes the question. The choice is not between Pix, SPEI and Bre-B, because each one is used in its own country. The question is which part of the cash flow they cover and which part needs another tool.
How they compare: design, operator, hours and identifiers
The three systems are alike in their promise and different in design. The table below summarizes what the central banks publish about each one. The business-use row is this article's reading, not an official rule, and limits and fees always depend on the company's own bank.
| Feature | Pix (Brazil) | SPEI (Mexico) | Bre-B (Colombia) |
|---|---|---|---|
| Responsible central bank | Banco Central do Brasil | Banco de México, which administers and operates it | Banco de la República |
| Start | November 2020 | In operation since 2004; runs 24/7 today | Full operation since October 6, 2025 |
| Currency | Brazilian real | Mexican peso | Colombian peso |
| Hours | Continuous, by system design | 24 hours, 365 days a year | Any hour, any day |
| How the payee is identified | Pix key or QR code | CLABE; CoDi and DiMo as collection and payment layers | Bre-B key or QR code |
| Likely business use | Collections with QR and key in retail and invoicing | Supplier and payroll payments by CLABE; reconciliation with the CFDI invoice | Collections with a merchant-code key and QR; payments subject to a per-transaction cap |
| Scope | Domestic transactions only | Payments in Mexican pesos between participants only | Payments in pesos between institutions in the country only |
The most visible design difference is the identifier. Pix and Bre-B rely on keys: an alias, such as a mobile number, a tax ID or a merchant code, that the system resolves to an account. SPEI started with the CLABE, a standardized account number, and later added layers, including CoDi and DiMo, which the Banco de México reports in its Annual Report on Financial Market Infrastructures 2024.
A practical consequence is the collection detail you give a customer. In Brazil and Colombia a key or a QR is enough; in Mexico the CLABE is usually shared. The satellites of this series cover each system in depth: Bre-B for businesses in Colombia and the SPEI guide for businesses in Mexico.
Adoption: what the official figures say
Pix recorded nearly 80 billion transactions in 2025, SPEI 5.342 billion in 2024 and Bre-B more than 670 million in under six months to March 2026, according to their central banks. In 2025, according to the Banco Central do Brasil, Pix transactions grew 25.7% to nearly 80 billion, and financial volume grew 33.8% to more than 35 trillion reais. It is the system with the most published transactions of the three, although each central bank counts transactions in its own way.
For SPEI, the latest Banco de México annual report we could verify covers 2024: 5,342 million electronic transfers worth 578 trillion pesos, about 17.19 times that year's GDP. The same report says 81.6% of operations went through commercial banks and that the system ended 2024 with 86 direct participants.
For Bre-B, the Banco de la República reports, as of March 2026, more than 670 million transactions in under six months of operation, about 1.2 trillion pesos a day and 12.68 million active keys, according to its official Bre-B portal. Of the users, 91.4% are individuals.
Three cautions apply when reading these numbers:
- The first is the date: Pix is measured at 2025, SPEI at 2024 and Bre-B at March 2026. They are not comparable line by line.
- The second is the definition: each central bank counts a transaction and its exclusions differently, so adding or dividing figures across systems is not a valid comparison.
- The third is the mix: the headline figures combine individuals and businesses, and none of the sources we reviewed breaks out the business share in a comparable way.
What does adoption tell a company about its own collections?
It tells you that end customers already know how to pay instantly, not that your company already collects that way. A treasury team should measure what share of its own receipts arrives through the local system before shortening cash buffers or changing its reconciliation process. The national figure is a hint about customer habits, not a company metric.
What changes for a company inside each country
Inside its own country, an instant payment system changes three treasury routines: crediting, reconciliation and control. Crediting no longer depends on bank hours, so a receipt can arrive on a Saturday. Reconciliation has to absorb more movements with less uniform references. Control has to assume that an instant payment is credited in seconds and that reversing it depends on each institution's mechanisms.
There are country differences a regional company should know before unifying processes:
- In Colombia, the Banco de la República caps Bre-B at 1,000 UVB per transaction, equal to 12,110,000 pesos in 2026, according to its official page.
- In Mexico, the company's own bank sets limits, crediting times and fees on SPEI, and the electronic invoice (CFDI) shapes how payments are reconciled.
- In Brazil, the Banco Central do Brasil and participating institutions apply security rules and value limits, which the Pix management report describes together with its anti-fraud measures. For recurring collections, Brazil added Pix Automático in 2025, based on a single payer authorization.
The internal discipline is similar in all three: define who registers a payee, who approves the amount and what identifier ties each receipt to an invoice. Controls should be designed country by country, because limits and channels do not match.
What none of them solves: payments between countries
Pix, SPEI and Bre-B do not solve payments between countries because each system settles in one currency between institutions of one country. A Brazilian customer cannot pay a Colombian company with Pix, and a Mexican company cannot send a SPEI payment to a supplier in Brazil. When a payment crosses a border, the flow goes back to correspondent banking or to another route.
A company with sales in Brazil, purchases in Mexico and a team in Colombia can have three near-instant local flows and three slow cross-border flows. The table below separates what each need requires.
| Company need | What the local system covers | What still needs another route |
|---|---|---|
| Collect from a customer in the same country in local currency | Pix, SPEI or Bre-B: instant collection with a key, CLABE or QR | Reconciliation against the country's electronic invoice |
| Pay a supplier in the same country | Instant transfer, subject to the bank's limits | Internal approval, withholding and tax documentation |
| Collect from a customer in another country of the region | Not applicable: the customer has no local account | International route, currency conversion and documentation of the operation |
| Pay a supplier or contractor in another country | Not applicable: each system settles in its own currency | International payment, exchange rules and withholding by country |
| Move cash between subsidiaries in different countries | Not applicable | Treasury policy, transfer pricing and currency hedging |
What does a company do when it must pay between two of these countries?
The company usually sends an international transfer through correspondent banking, whose cost and timing are explained in how much a SWIFT transfer costs in 2026, or holds a stablecoin balance and converts to local currency at the destination. The comparison between the two routes is in SWIFT vs stablecoins for international payments. Neither is free or instant in every case, and the choice depends on amount, destination and the accounting documentation each country requires.
Interlinking initiatives exist, but they should be read with caution. The Bank for International Settlements (BIS) Project Nexus aims to let an instant payment system connect once to a common platform and reach all the others. According to the BIS announcement of July 2024, it completed its design work with Malaysia, the Philippines, Singapore and Thailand, and added India in the next phase. That announcement does not mention Brazil, Mexico or Colombia, and as of October 2026 we have not verified an operating link between the three systems compared here.
What Soulbit delivers today and what it does not
Soulbit V1 delivers a company balance in stablecoins (USDC and USDT) and in fiat (USD, EUR and GBP), with institutional custody, a local bank rail only in Colombia, payment links, collection QR codes, recurring or batch payroll and OTC conversion by quote on request. It does not operate on Pix, SPEI or Bre-B and does not aim to replace them for local payments.
Its possible role is the cross-border leg. A company can collect from a customer abroad with a payment link or a collection QR, hold the balance in a stable currency and, when needed, disburse to several recipients.
What Soulbit V1 does not do: it does not provide banking services or open bank accounts, it has no local bank rail in Brazil or Mexico, it does not issue cards, it does not pay yield on balances and it offers no API for the company's accounting software. We also make no price advantage claim against any route: Soulbit has no closed fee schedule, and any cost comparison should use real quotes.
Consider an illustrative case, with every figure an assumption. A US software company with subsidiaries in Brazil, Mexico and Colombia pays local staff and suppliers with each country's instant system through its local banks. The transfers between its subsidiaries and the payments from its US parent need international routes, and its treasury team evaluates whether a stablecoin balance shortens timing compared with correspondent banking. The decision depends on cost, each country's exchange rules and accounting support, not on the local system.
Frequently asked questions
What is the difference between Pix, SPEI and Bre-B?
All three are public instant payment systems run or overseen by a central bank, but each settles in its own currency and country: Pix in Brazilian reais, SPEI in Mexican pesos and Bre-B in Colombian pesos. They differ mainly in how the payee is identified: Pix and Bre-B use keys, while SPEI uses the CLABE account number plus layers such as CoDi and DiMo.
Can a company use Pix, SPEI or Bre-B to pay someone in another country?
Not directly. All three systems settle in local currency between institutions of the same country. A payment to another country needs an international route, with its own currency, timing, documentation and exchange controls, and your treasury team decides which route fits.
Do Pix, SPEI and Bre-B run 24 hours a day, every day?
According to the central banks, Bre-B and SPEI operate at any hour and Pix is designed to run continuously. Your own bank can still apply its own limits, maintenance windows or extra checks, so confirm them in writing before you build a process on them.
Is there a system that links Pix, SPEI and Bre-B?
As of October 2026 we have not verified an operating link between the three with an official source. The BIS Project Nexus aims to connect instant payment systems across countries, but its July 2024 announcement names India and four ASEAN countries, not Latin American systems.
What should a CFO check before relying on an instant payment system?
A CFO should check the per-transaction limit set by the bank, how each payment will be reconciled to an invoice, the approval controls, and the payee name validation before confirming. The CFO should also separate the local part of the cash flow from the cross-border part, because the tools are different.
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