Pix is Brazil's instant payment system, operated by the central bank (Banco Central do Brasil). The payer picks the recipient using a Pix key (an alias like a phone number, email, tax ID, or random key) or scans a QR code, so nobody has to type account numbers. The instruction races through the central bank's rail in seconds, the recipient's bank credits them right away, and each payment is settled instantly, one by one, in central-bank money at the central bank. It runs 24/7 and is typically free for individuals.
The flow at a glance
Who’s involved
- Payer
- Person or business sending the money
- Payer's bank
- Holds the payer's account, debits it, and sends the Pix instruction
- Alias directory (DICT)
- Central registry that maps a Pix key to the right account
- Pix rail (Banco Central do Brasil)
- Central-bank-operated system that routes the instruction and settles positions
- Recipient's bank
- Holds the recipient's account and credits it
- Recipient
- Person or business receiving the money
How it moves, step by step
- 1messagePayer
The payer enters a Pix key (phone, email, tax ID, or random key) or scans the recipient's QR code in their banking app.
- 2messagePayer's bank
The payer's bank looks up the key in the central alias directory (DICT) to confirm which account and bank it points to.
- 3messageAlias directory (DICT)
The directory returns the matching account details so the payment is addressed correctly.
- 4messagePayer's bank
The payer's bank debits the payer's account and sends the payment instruction into the central bank's Pix rail.
- 5messagePix rail (Banco Central do Brasil)
The rail validates the instruction and forwards it to the recipient's bank within seconds.
- 6moneyPix rail (Banco Central do Brasil)
The rail settles the payment instantly in central-bank money, moving funds between accounts the two banks hold at the central bank. Each Pix is settled on its own, not batched up.
- 7moneyRecipient's bank
With settlement confirmed, the recipient's bank credits the recipient's account within seconds. The money has already arrived at the bank, so it never has to front its own funds.
- 8messagePayer
Both parties get near-instant confirmation in their apps; the transfer is final and works 24/7.
When it’s final
Funds reach the recipient in seconds, 24/7, including nights, weekends, and holidays. Interbank settlement is instant too: the central bank's SPI settles each Pix payment one at a time in central-bank money (real-time gross settlement), moving funds between prefunded accounts the banks hold at the central bank, with no netting and no batch cycles, before the recipient is credited.
Common misconceptions
Myth: The central bank's Pix rail sends the money to the recipient.
Reality: The rail routes the instruction and settles each payment instantly in central-bank money between the banks' accounts at the central bank; the recipient's bank then credits the recipient.
Myth: A Pix key is a special wallet that holds your balance.
Reality: A Pix key is just an alias that points to an existing bank account. The money still lives in your bank account; the key only tells the system where to send it.
See it in the studio
Terms in this guide
Sources
- Pix overview ↗ · Banco Central do Brasil. Operator of the Pix instant payment system and the DICT alias directory.
- Instant payments and fast payment systems ↗ · BIS / CPMI. Background on how instant payment rails clear and settle.
Educational, plain-English explainers. Not legal, compliance, tax, or financial advice. These cover fundamentals, not current fees, limits, or rates (which change). Rails and parties vary by program and country, so verify specifics against primary sources. Last reviewed June 2026.