How a US company pays suppliers in Brazil and Mexico from a US bank account

A US company can pay suppliers in Brazil and Mexico from a US bank account in three ways: an international wire, a fintech transfer, or a stablecoin route that turns dollars into reais over Pix or pesos over SPEI. With BlindPay, USD arrives by ACH or wire, converts to USDC, and pays out over Pix or SPEI in minutes, with every fee shown in the quote.

This guide starts where most finance teams actually start: dollars in a US business checking account and an invoice in reais or pesos. If you already hold USDC, how to send USDC to a bank account in Brazil is the shorter path.

Key takeaways

• Pix and SPEI settle in minutes, 24/7. The slow step is getting dollars into the payment provider, which takes 1 to 5 business days by ACH or wire.
• A wire's cost is spread across your bank's fee, intermediary deductions, and an FX margin you rarely see. A stablecoin quote puts the market rate and the rate after fees side by side.
• Collect the right details up front: a Pix key or bank routing for Brazil, an 18-digit CLABE for Mexico.
• Pix and SPEI statements show BlindPay's name, not yours, so send remittance advice with every payment.
• KYB on your company comes first. Budget days, not minutes, for onboarding and for a virtual account if you want one.

What are the options for paying a supplier in Brazil or Mexico?

There are three: send an international wire from your US bank, use a fintech that converts and pays out locally, or convert dollars to a stablecoin and pay out over Pix or SPEI. Each moves the money between countries differently.

1. International wire (SWIFT). Your bank sends dollars through one or more correspondent banks to the supplier's bank, and someone along the chain converts to reais or pesos. Familiar, slow, and the FX rate is set by whichever bank converts.
2. Fintech transfer. A money transfer company collects your dollars in the US and pays the supplier from its own local balance in Brazil or Mexico. Faster than a wire, and the provider funds those local balances in advance.
3. Stablecoin route. Dollars convert to USDC, the USDC settles on a blockchain, and a local institution pays the supplier in reais over Pix or pesos over SPEI. No correspondent chain and no pre-funded local balance on your side.

For context on price levels, the World Bank's Remittance Prices Worldwide, Issue 54 put the average cost of sending $200 from the US at 5.04% in Q3 2025, and banks were the costliest type of provider at 14.99%. Those are consumer remittance figures, not B2B invoices, but the cost layers are the same ones a supplier payment runs through. What cross-border payments cost in 2026 has the corridor detail.

How do the routes compare?

The stablecoin route is the fastest to the supplier once dollars are in, and the only one of the three that shows the market rate next to your rate in every quote. A wire still wins when the supplier needs dollars.

BlindPay also sends SWIFT (POBO/COBO), with UETR tracking and MT103 confirmations, for suppliers who want dollars. POBO vs COBO explained covers how those payments are made on your behalf.

How does the stablecoin route work from a US bank account?

It runs in two legs: dollars in and reais or pesos out, with USDC in a wallet in between. Each leg has its own quote.

Leg 1: dollars in. You have two ways to send USD from your US bank, both covered in the payins docs:

• A payin quote with a memo code. Create an ACH or wire payin, and BlindPay returns bank details plus a memo_code to put on the transfer. Good for occasional payments. ACH and wire payins can take up to 5 business days to arrive, and payins without a virtual account are capped at $500,000 per transaction.
• A US virtual account. A dedicated routing and account number in your company's name that takes ACH, wire, and SWIFT deposits and converts each one to USDC or USDT in your linked wallet. It costs $1.50 per month per account, and goes through compliance review and then bank review before approval (virtual accounts). Better for recurring payables. How to accept bank transfers and settle in stablecoins walks through it.

A third option, ach_pull, pulls the dollars from a bank account you connect through Plaid, with a flat $1.00 fee per pull.

Leg 2: reais or pesos out. From the wallet, you create a payout quote against the supplier's bank account and execute it. Per the payment methods docs, Pix, PIX Safe, and SPEI settle in minutes. TED, Brazil's wire-style rail, takes about 1 business day.

Both instant rails run around the clock. The Banco Central do Brasil describes Pix as available 24 hours a day, every day, with funds available to the recipient in a few seconds. Banco de México runs SPEI on a 24/7 schedule and has operated it since August 13, 2004. Instant payment systems by country compares them with the US and European rails.

The wallet in the middle is either an external wallet your company controls, which keeps the payout non-custodial, or a BlindPay managed wallet (beta), where BlindPay custodies the balance and you skip on-chain signing (payout with managed wallet).

What does the supplier need to give you?

For Brazil, a Pix key or full bank routing. For Mexico, an 18-digit CLABE and the beneficiary's name. Get them before the invoice is due, not on the day.

Field-level rules are in the bank accounts docs. Pix keys, CPF, and CLABE explained covers what each identifier is and how to validate it.

When you add the supplier, set recipient_relationship to vendor_or_supplier. It records why you're paying this account, and it tells BlindPay the account belongs to a third party rather than your own company.

What documents should a supplier payment carry?

An invoice, at minimum, kept in your own records and ready to attach. What the rail requires depends on the rail.

• Pix and SPEI payouts never wait for documents. You can still attach an invoice to the payout for BlindPay's compliance team while it's processing or after it completes (payout quotes).
• SWIFT payouts to a third party go on_hold after creation until the required compliance documents are submitted and approved. Payments to your own account don't need them.
• Your own onboarding needs KYB documents: formation documents, an ownership structure naming each beneficial owner, and proof of address (KYB documents). A virtual account adds source of funds and source of wealth, backed by statements, tax returns, or contracts and invoices.

One practical gap: the supplier's statement for a Pix or SPEI payout shows BlindPay's name as the sender, per the payout descriptor docs. Send remittance advice (invoice number, amount, date) by email or from your accounts payable tool so the supplier can match it.

How do you read the quote on a R$54,000 invoice?

The quote does the math, so the job is to read it. The numbers below are made up to show the arithmetic. They are not a BlindPay rate.

Assumptions:

• The invoice is R$54,000, and the supplier must receive exactly that.
• You quote with currency_type: "receiver" (the amount is in reais) and cover_fees: true (fees are added on top, so the supplier gets the full amount).
• The quote returns a market rate (commercial_quotation) of 5.400 BRL per USDC and a rate after BlindPay's fee (blindpay_quotation) of 5.373.

The math:

1. At the market rate, R$54,000 costs 54,000 / 5.400 = 10,000.00 USDC.
2. At the rate after fees, it costs 54,000 / 5.373 = 10,050.25 USDC.
3. The difference is 50.25 USDC, or about 0.50% of the payment. Add any flat_fee the quote shows, and you have the all-in cost of the payout leg.

The payin leg (USD to USDC) has its own quote with its own fees, so price both legs. How to calculate FX spread runs the same check against any provider's quote, including a bank wire, so you can compare like for like.

What compliance checks apply?

Your company is checked once at onboarding, and each payment is screened as it runs. Both sides of the corridor have their own rules too.

• KYB on your company. KYB Standard is reviewed manually in 3 hours to 1 business day (cut-off times and onboarding SLAs). Nothing moves before it clears.
• Screening on every payment. Payments are screened in real time. A payin or payout can be held for review, for example on a first withdrawal or an amount that's large for your history, and a hold can take up to 30 days to resolve.
• Supplier-side rules. The supplier receives a domestic Pix or SPEI credit in local currency. How they book and declare it is a question for their accountant in Brazil or Mexico.
• US records. Keep invoices, contracts, and payment confirmations together. They answer most questions from auditors and from the provider.

This is for information only and is not legal advice. Rules differ by country and by the type of supplier.

How do you pay a supplier in Brazil or Mexico with BlindPay?

Six steps, and only the first one is slow.

1. Onboard your company. Create the customer and complete KYB.
2. Choose how dollars come in. A payin quote with a memo code for one-off payments, or a US virtual account for recurring ones.
3. Receive stablecoins. The deposit converts to USDC or USDT and lands in your wallet.
4. Add the supplier's bank details. A Pix key or Brazilian bank routing, or a CLABE, with recipient_relationship set to vendor_or_supplier.
5. Create a payout quote. Quote the invoice amount in BRL or MXN, check the market rate against the rate after fees, and confirm within 5 minutes.
6. Execute the payout and send remittance advice. Pix and SPEI land in minutes. Track the payout until completed, then email the supplier the invoice reference.

Paying the same suppliers every month? Many teams keep a USDC balance sized to a week or two of payables. Then step 2 happens in the background, and each supplier payment is just steps 5 and 6.

When is a wire still the right choice?

When the supplier invoices in dollars, holds a dollar account, or banks in a country without a local rail you can reach. A wire is also simpler for a one-off payment where speed doesn't matter and your bank already knows the supplier.

For Brazil and Mexico specifically, the local rails cover almost every business account, so the wire is the exception. USDC to BRL routes and USDC to MXN routes compare the providers and rules on each corridor, and the hub on real-time cross-border settlement explains why the leg between countries sets the speed.

What to do next

Pick one supplier in Brazil or Mexico and price their next invoice both ways: your bank's wire quote against a BlindPay payout quote. Start with the payout quickstart on a free development instance.