Pix (Brazil's instant payment system, run by the Central Bank) is the rail a company uses to collect from customers and pay suppliers and employees in seconds, every day of the year. It needs a CNPJ (the Brazilian company taxpayer ID) and an account at a Pix participant, with up to 20 Pix keys per account.
How Pix works for a company
Banks and payment institutions connect to the Central Bank's settlement system as participants, and a directory called the DICT (the registry that maps each Pix key to an account) tells the payer's institution where a payment goes.
The timing is written down. Under the Central Bank's Pix timing manual (version 7.0), a Pix sent through the primary channel of the settlement system that does not settle within 40 seconds is rejected. The Pix Regulation, annexed to BCB Resolution 1 of August 12, 2020, defines an instant payment as a service available 24 hours a day, every day of the year, so there is no banking-day calendar behind it.
What changes for a company is the account and the keys. A person with a CPF (the Brazilian individual taxpayer ID) can link up to five Pix keys to each account, and a holder with a CNPJ can link up to 20, according to the DICT operating manual (version 8.5).
On Lumx, Pix runs 24/7/365 with no cut-off and settles as an instant payment. The docs call these processing targets, not guarantees: a transaction held for an RFI (request for information, a compliance hold that asks for a document) pauses until it is answered.
What does a company need to start using Pix?
What a business needs before its first Pix, and where each item is set.
Need | What it means | Set by |
A CNPJ | The company's taxpayer ID, also usable as a Pix key (14 characters, no punctuation) | DICT manual, version 8.5 |
A payment account | An account at an institution that participates in Pix; each key links to one account | The Pix participant |
Pix keys | Up to 20 per account for a CNPJ holder: CNPJ, email, mobile number or random | DICT manual, version 8.5 |
Onboarding | KYB and the documents the institution asks for | The institution, not the Pix rules |
Fees | Set and published by each institution; on a transfer only the payer can be billed | Pix Regulation, Resolution BCB 1, arts. 87 to 87-D |
The daily ceiling on what the company can send is also the institution's choice, so ask for it before a large run. The published numbers are in the guide to payout ceilings, which owns that question.
Fees for a company are the institution's to set. The Pix Regulation (BCB Resolution 1 of August 12, 2020, arts. 87 to 87-D, read November 6, 2026) requires each participant to publish its Pix fees for companies and individuals, lets it bill a transfer only to the payer and a purchase only to the recipient, and bans fees between the two institutions. Ask for the CNPJ fee table before comparing Pix with other options. On Lumx, no fee comes off the amount that reaches the recipient, and the payout fee structure is not published.
A company with no Brazilian entity usually cannot open that account at all, which is where a named virtual account helps. A Brazilian company with a CNPJ can use the same named BRL account to collect domestically. On Lumx, a company creates a BUSINESS customer with a BRL account, completes KYB (know your business, the verification of a company and its owners) and, once approved, receives Pix in its own name. The account is issued by a banking partner in the customer's name, a foreign company can hold it without a local entity, and BRL provisioning finishes right after approval. Lumx targets one business day for the KYB review. See the named virtual account explainer and the KYB explainer.
Receiving Pix: keys, QR codes and recurring charges
A company can be paid three ways. The first is a key the payer types or pastes. The second is a QR code generated for one charge, which carries the amount. The third is a charge with a due date, which the timing manual calls Pix Cobrança, and the recurring variant, Pix Automático, where the payer authorizes charges once and the payer's institution sends each payment order.
Recurring charges have one return path of their own. If the payer's institution sends a Pix Automático order in error, it can ask for a return. The Central Bank's returns guide says the recipient's institution returns what is in the recipient's account, in full or in part, and may reject the request when there are no funds. The 24 hours in the guide is the time to execute the return once the institution accepts it, not a promise that the money is back in a day.
On Lumx, a Pix charge returns a Pix code (brCode) that the payer pays in any bank app. A one-off on-ramp creates a code for a single payment, and an autoconversion rule on the BRL account returns a static Pix QR code that every later payment can use. Lumx converts each Pix and delivers USDC or USDT up to five minutes later,. The BRL to USDC page shows the live rate, and the merchant checkout case is in accepting stablecoin payments in Brazil.
Paying with Pix: suppliers and payroll runs
A company pays in one of two ways: to a Pix key, or to bank data (bank, branch, account number and account type) plus the holder's tax ID. The CNPJ key on a supplier invoice is the cleanest route, because it resolves to one account. Each Pix settles by itself, so a batch of 500 is 500 separate payments, each with its own result.
I recommend that a finance team send the first Pix to every new supplier as a small test to the CNPJ key on the invoice, and release the full amount only after the supplier confirms the company name it received. A Pix sent to the wrong key comes back only if the recipient decides to return it.
On Lumx, a payout starts by registering the recipient as a destination: the key type (CPF, CNPJ, email, phone or random), the key, and the holder's relationship to the customer (SELF, SUPPLIER or EMPLOYEE), tax ID and address. Lumx verifies each holder, and a payout to a destination that is not approved fails with INVALID_PAYMENT_DESTINATION. The off-ramp then debits the stablecoin from the customer's wallet and sends the Pix. The recipient sees the customer as the payer, and Lumx deducts no fee from the amount that arrives. Limits per payout are covered in the guide to payout ceilings. Webhooks follow the payout from offramp.transferring_fiat to offramp.success. The steps are in the USDC to Brazil guide, and the off-ramp explainer covers the conversion leg.
How much of Pix is business payments?
Companies send a small share of Pix payments and most of the value. The Central Bank publishes Pix transactions by municipality, split by individual or company. Summed over the 5,572 municipalities, October looks like this:
Pix payments sent by payer type, October 2025 and October 2026. Source: Central Bank of Brazil open data, summed by municipality, read November 6, 2026.
Measure | October 2025 | October 2026 | Change |
Payments sent by companies | 806.3 million | 1,050.0 million | +30.2% |
Payments sent by individuals | 5,405.4 million | 6,317.3 million | +16.9% |
Value sent by companies | R$1,619.7 billion | R$2,103.8 billion | +29.9% |
Value sent by individuals | R$1,016.2 billion | R$1,175.8 billion | +15.7% |
Companies' share of value sent | 61.4% | 64.1% | +2.7 points |
Average payment by a company | R$2,009 | R$2,004 | flat |
Average payment by an individual | R$188 | R$186 | flat |
Companies sent 14.3% of the 7.37 billion Pix payments in October 2026 and 64.1% of the value. The average company payment, about R$2,000, is roughly ten times the individual one. Business Pix is fewer, larger payments: one wrong key on an average company payment costs more than ten typical individual Pix, and in a payables run that is the error a finance team answers for.
When a business Pix goes wrong: returns and the MED
A Pix is final once it settles. It can come back in four ways, and the Central Bank's returns guide (version 4.4, updated October 26, 2026) sets the windows. The MED is the Mecanismo Especial de Devolução, the special return mechanism for fraud and operational failures.
How a Pix comes back, who starts it and the published window.
Case | Who starts it | Window |
The recipient returns it voluntarily, in full or in parts | The recipient | Within 90 days of the original Pix |
Operational failure at the payer's institution, such as a duplicate send or an amount that differs from the one ordered | The payer's institution asks the recipient's institution | The recipient's institution has 48 hours to decide, and returns only what the account holds, in full or in part |
Fraud or a scam, through the MED recovery process | The payer's institution | The original Pix at most 80 days old, 7 days for recipient institutions to analyze, then 72 hours to start the return and 6 hours per institution to execute it |
Precautionary block on suspected fraud | The recipient's institution | Up to 72 hours to analyze before returning or releasing |
The guide also says a Pix duly initiated by the payer and credited correctly is not an operational failure. A payment to the wrong supplier key, or for a wrong amount typed by the payer, is outside the MED and depends on the recipient returning it, as in the first row.
On Lumx, a Pix deposit that arrives after its on-ramp has expired is not processed and is refunded to the sender on Pix. A payout counts as complete once the funds leave Lumx's banking partner, and the recipient's bank can still hold them for its own review.
When Pix is the wrong tool for a business
Pix is a domestic rail that ends in reais. Four cases where it is the wrong answer:
The money has to end up abroad in dollars. A company that needs dollars at the other end needs a conversion step or an international rail. The natural FX hedge guide covers whether to convert.
The payer is outside Brazil. A customer abroad cannot pay by Pix from a foreign bank.
The dispute is about the goods. None of the return cases above is a "goods not as described" dispute, so a merchant that needs a card-style process has to build it into its own terms. Pix against a TED comes down to the institution's published fees.
The payment is larger than the institution allows in a day. The ceiling is the institution's own, so a very large payment needs a higher one agreed first.
Where stablecoin settlement fits next to Pix
Pix is the local leg of a cross-border payment; a stablecoin is the leg that crosses the border. A company abroad that sells in Brazil collects reais by Pix and holds dollars; one that holds dollars and pays Brazilian suppliers does the reverse.
Lumx is stablecoin payments infrastructure for businesses that move money between Latin America and the rest of the world: one API to collect, hold, convert, and pay out in BRL, MXN, COP, USD, EUR, and GBP or in USDC and USDT, over local rails such as PIX, SPEI, PSE, Bre-B, ACH, FEDWIRE, SEPA, and Faster Payments, with SWIFT and on-behalf-of payments and collections (POBO and COBO) in USD, EUR, and GBP, plus named virtual accounts, custodial wallets, and KYB/KYC built in.
For Pix, that means a named BRL account that receives Pix in the company's own name, and a payout from the company's wallet to a verified Pix destination. The stablecoins that convert to BRL are USDC on Ethereum, Polygon and Base, and USDT on Ethereum, Polygon and Tron, per the docs read on November 6, 2026. The USDC to BRL page shows the live pair. A team can try it before committing: the sandbox is self-serve, the account opens from the dashboard with no request to the sales team, it simulates an on-ramp deposit and it rejects an invalid destination. For production, Lumx targets one business day for the KYB review, and a compliance hold (RFI) has a 24-hour window to answer, so the wait is known in advance. SPEI (Mexico's interbank transfer system, run by Banxico) runs in the same API, and the SPEI guide covers it. Live countries and rails are on the coverage page (as of November 2026), and the overview is on global payments.
Methodology and sources
Every figure above was read on November 6, 2026.
Pix volumes: the Central Bank's Pix statistics in the open data portal, the "Transações Pix por Município" resource, summed over all municipalities for October 2025 and October 2026 by payer type.
Availability and fees: the Pix Regulation annexed to BCB Resolution 1 of August 12, 2020, read through the Central Bank's normative API on November 6, 2026.
Timing: the Manual de Tempos do Pix, version 7.0.
Keys: the Manual Operacional do DICT, version 8.5.
Returns and the MED: the returns guide, version 4.4, which cites the Pix Regulation annexed to BCB Resolution 1 of August 12, 2020.
Lumx behavior: the Lumx docs pages on Pix limits and hours for businesses, opening a named BRL account, collecting BRL via Pix and paying out via Pix.
Verified on November 6, 2026. Operational context, not legal, tax, or investment advice.
What is Pix for business?
Pix for business is the use of Brazil's instant payment system by companies to collect from customers and pay suppliers and employees. A company needs a CNPJ and an account at a Pix participant, and it can register up to 20 Pix keys per account. On Lumx, a business customer gets a named BRL account that receives Pix in its own name, and it can pay out to a verified Pix destination.
How does a company receive and pay Pix?
A company receives Pix through a key or a QR code that carries the amount, and pays to a key or to bank data plus the holder's tax ID. Each Pix settles on its own, within seconds. On Lumx, a Pix charge returns a Pix code, and a payout goes to a registered destination that Lumx has verified.
Does Pix work on weekends and holidays for companies?
Yes. Under the Pix Regulation, an instant payment is available 24 hours a day, every day of the year, so Pix has no banking-day calendar, so a payment on a Sunday night settles like one on a Tuesday morning. On Lumx, Pix runs 24/7/365 with no cut-off, although a transaction held for an RFI waits until the document is sent, and Brazilian holidays may still affect dispute windows.
Can a company reverse a Pix it sent by mistake?
Only in specific cases. The recipient can return a Pix within 90 days, and the MED covers fraud and operational failures at the payer's institution, up to 80 days from the original Pix. A Pix the payer sent correctly to the wrong key is not an operational failure, so it depends on the recipient. On Lumx, a deposit that arrives after its on-ramp expired is refunded to the sender on Pix.
Can a company outside Brazil collect Pix?
Usually not directly, because the account needs a Brazilian entity. On Lumx, a company incorporated abroad opens a BUSINESS customer with a BRL account, completes KYB and receives Pix without a local entity, with each payment converted to USDC or USDT.
