The pitch I keep running into is a screenshot of USDT landing in a wallet in under a minute, with a network fee of a few cents.
Next to an $8 or $9 counter fee, it looks like an easy win.
The screenshot leaves out the two currency conversions on either side of the transfer, which is where a small send gets expensive.
So I ran the $200 test on Mexico.
It's a costing exercise, not a live transfer. Every number comes from published sources, mainly the World Bank's US-to-Mexico survey and a July 2026 Bank of Italy study whose researchers sent real USDC across ten corridors.
What does a $200 transfer to Mexico cost the usual way?
About $9, on average.
The World Bank's Remittance Prices Worldwide survey put the US-to-Mexico corridor at 4.54% of a $200 send in the third quarter of 2025, the latest quarter it has published, or $9.07 in fees and exchange-rate markup combined.
Our guide to sending money to Mexico compares the main apps on fees and payout options.
I treat that average as a ceiling to beat rather than a typical price, because it blends cheap app transfers with bank wires that can cost far more.
Cash senders got a new line item this year. Since January 1, 2026, a 1% federal remittance tax applies when you pay a transfer company with cash, a money order or a cashier's check, which adds $2 to a $200 send.
Pay by debit card or straight from a bank account and the tax doesn't apply. Anyone still handing cash over a counter every payday now pays for that habit twice, once in the fee and again in tax.
Where does the money go on the stablecoin route?
Mostly into the two conversions, and very little into the blockchain. The first leg is buying the coin, where you pay dollars and receive USDC or USDT in a wallet.
Paying by card is the fast way, since a card purchase usually completes in minutes and a bank transfer can take a few business days.
If you pay by card, the checkout decides most of what that leg costs, so it's worth seeing the fees before you confirm.
Paybis, one of the best places to buy crypto with a card, also accepts Apple Pay and Google Pay, and it shows the service fee at checkout with the network fee listed separately.
The company is registered with FinCEN as a money services business and is PCI-DSS certified for card payments.
Its site also notes that bank-based payments generally cost less than cards, which helps monthly senders who can wait for a bank transfer.
The leg everyone talks about, moving the coin, really is cheap.
In March 2026, researchers at Italy's central bank sent 200 USDC across ten corridors linking Italy with Argentina, Brazil, South Africa, the UAE and Japan, and the on-chain transfer averaged 0.4% of the amount sent.
Total costs still ran from 0.30% to nearly 9%.
Exchange fees and currency spreads made up most of the difference, along with bank deposit and withdrawal charges.
The study didn't test the US, but the corridor where the sender paid by card shows what a card does to a small send.
The sender in the UAE had no bank account, so a card was the only option.
Its 3.8% surcharge helped push the cost of funding and buying the USDC to 6.17% before the coins moved at all.
Here's the $200 math if a US card checkout charged the same.
Cost item on a $200 send | Amount | Where the figure comes from |
|---|---|---|
US-to-Mexico average across all providers, Q3 2025 | $9.07 | World Bank survey |
Extra if you pay a provider in cash | $2.00 | 1% federal tax since 2026 |
Card surcharge on the stablecoin purchase, if a US checkout matched the study's 3.8% | $7.60 | Banca d'Italia, UAE-to-Italy test |
Moving the coin, at the study's 0.4% average | $0.80 | Banca d'Italia, ten-corridor average |
Recipient's sale for pesos and bank withdrawal | Varies | The Mexican exchange's spread and fees |
In this estimate, the surcharge and the transfer come to $8.40 before any service fee or the recipient's sale.
Your own checkout's card fee may differ, so swap in its figure. At 3.8%, a card-funded coin route starts out roughly level with the corridor average, and it still has a second conversion to pay for in Mexico.
I'd use a debit card where possible, because some issuers treat a crypto purchase on a credit card as a cash advance, with its own fee and interest from the first day.
That second conversion is easy to underestimate.
Take a hypothetical sender, Ana, in Houston, who moves USDC to her mother in Puebla.
Her mother usually needs her own verified account on an exchange that buys USDC for pesos, plus a SPEI withdrawal to her bank using its 18-digit CLABE number.
SPEI, Banco de México's interbank system, settles in seconds.
The exchange's buy price for USDC is where the spread sits, and it doesn't always show up as a fee.
When does the stablecoin route actually win?
It wins when funding is cheap and both ends have fast banking.
Even then, it doesn't win every time. In the Banca d'Italia test, USDC beat Wise in three of the seven corridors where both could be compared.
From Brazil to Italy, where both countries run instant payment systems, USDC cost 2.21% against Wise's 4.68% to 4.89%.
It lost the other four, including Italy to Brazil, where Wise's 2.20% beat USDC's 2.70%.
The authors also flag their cheapest result, 0.30% from Italy to Argentina, as one to read with caution, since it was measured against Argentina's official exchange rate.
I'd give the coin route a serious look in two situations, and the first one matters most.
The recipient wants to keep dollars. A family that would rather hold USDC than pesos skips the off-ramp until it actually spends the money, and the Banca d'Italia authors write that the advantages would be substantially higher if stablecoins could be spent directly.
You can fund the purchase from a bank account and don't mind waiting for the transfer to clear.
For a one-off $200 send that your recipient needs in pesos the same day, a low-cost app will usually come out ahead.
Our roundup of the cheapest ways to send money abroad lists the providers worth comparing. Compare how many pesos each one delivers.
Quick answers before you send
Can I cancel a stablecoin transfer if something goes wrong?
What happens if I send USDT on the wrong network?
How long does a stablecoin transfer to Mexico take?
Wrap-up takeaway
Moving the coin is the cheap part.
The cost comes from turning dollars into coins and coins back into pesos, and on a $200 send a card surcharge can eat most of the savings before the coin leaves your wallet.
If your recipient wants pesos straight away, I'd still pick a low-cost app for $200.
The coin route earns a look when your recipient wants to hold dollars, and a card checkout that itemizes its fees makes the comparison quick to run.
Before your next transfer, note how many pesos your usual app delivers for $200.
Then price the coin route end to end, from your checkout to the pesos your recipient's exchange would pay out today.
