How to Pay a Mexican Agency from the US: Payment Methods, W-8 Forms and USD Invoices
Written by the Dizayn team
Updated
Key takeaways
- PayPal says paying for a purchase is free for the buyer, apart from currency conversion; the receiving business pays the fee.
- Form W-8BEN is for foreign individuals and W-8BEN-E for foreign entities. The payer keeps it; it doesn't go to the IRS.
- Insist on invoices in USD at the contract amount, so exchange-rate risk stays with the vendor.
How do you pay a contractor or agency in Mexico?
Most US companies pay a Mexican agency by PayPal (card), international bank wire, or a dollar stablecoin like USDC. Before the first payment, the agency hands over the IRS W-8 form that applies to it, and every invoice arrives in US dollars. That gives your finance team what it needs to book the expense cleanly.
In practice, the sequence looks like this:
- Sign the contract (in English, with scope, USD price and payment method).
- Receive the vendor's W-8 form.
- Receive the invoice in USD.
- Pay with the agreed method and file the receipt with the invoice.
Which payment method is best?
It depends on what you care about most: convenience, cost or speed. PayPal is easiest if you pay by card, a wire is the standard for larger B2B payments, and stablecoins settle fastest if your company already holds them. The platform or bank sets the fees, not the agency, so compare them for your own setup.
| Method | What it costs (per the source) | Upside | Watch out for |
|---|---|---|---|
| PayPal | Free for the buyer, except currency conversion | Pay by card, no balance needed | Pay as goods and services, not friends and family |
| Bank wire | Set by your bank | Standard for B2B | Ask your bank for its outgoing international wire fee |
| Wise | Mid-market rate plus a fee shown upfront | Cost transparency | Confirm the vendor can receive in that currency |
| Stablecoins (USDC, USDT) | Network fee, variable | Settles in minutes | Check how your accountant will book it |
PayPal
PayPal says it's free to use PayPal to pay for a purchase; only a conversion spread applies when currencies change. The business receiving the money pays the fee. For reference, the US business fee page lists 3.49% plus $0.49 for PayPal Checkout and an extra 1.50% for international commercial transactions. A Mexican agency pays PayPal Mexico's rates, which may differ.
One catch: international "friends and family" transfers carry their own 5% fee (minimum $0.99, maximum $4.99) and aren't meant for paying vendors. Always pay as a purchase of goods or services.
Bank wire
The traditional route for B2B payments. Your bank charges its own outgoing international wire fee and may apply an exchange rate if you convert to pesos. If the invoice is in USD and you send dollars, you skip that conversion on your side. Get the vendor's bank details in writing and confirm them through a second channel before sending.
Wise
Wise says it uses the live mid-market rate and a small, upfront fee. Think of it as a cheaper way to send the bank transfer: the money lands in the vendor's bank account.
Stablecoins (USDC and USDT)
Circle, which issues USDC, says USDC is redeemable 1:1 for US dollars. Payments land in minutes and the cost is the network fee. Before paying this way, ask your accountant how they'll record it.
W-8BEN vs W-8BEN-E: which one applies?
It depends on who gets paid. Form W-8BEN is for a foreign individual; Form W-8BEN-E is used by foreign entities, such as a company, to document their status. You don't choose: the vendor completes the one that fits its situation, and your company keeps it on file. It isn't sent to the IRS.
| W-8BEN | W-8BEN-E | |
|---|---|---|
| Who completes it | A foreign individual | A foreign entity |
| What it does | Certifies the person isn't a US person | Documents the entity's status |
| Who keeps it | The payer who requested it | The payer who requested it |
The W-8BEN instructions are direct: "Do not send Form W-8BEN to the IRS"; give it to the person requesting it. They also say a foreign entity should use W-8BEN-E instead. Dizayn fills in the IRS W-8 form that applies and sends it to you before the first invoice.
Why doesn't a foreign contractor get a 1099?
Because Form 1099-NEC belongs to domestic information reporting. The IRS has US contractors complete a W-9, and payers report their pay on Form 1099-NEC. A W-8BEN exists precisely to claim an exception from that domestic reporting.
The IRS instructions say Form W-8BEN is used to "establish that you are not a U.S. person" and to claim an exception from domestic information reporting and backup withholding. What does exist for payments to foreign persons is Form 1042-S: withholding agents file it to report amounts from US sources paid to foreign persons.
Whether a payment to an agency working from Mexico counts as US-source, and whether you need to file a 1042-S, is a question for your accountant. This guide isn't tax advice.
Should the invoice be in US dollars?
Yes, and it should match the contract amount. If an agency invoices in pesos, the exchange-rate risk moves to you and you pay a different figure every month. A USD invoice lets you compare budget against actual spend with no adjustments.
Check that each invoice shows:
- The vendor's legal name and country.
- Invoice number and date.
- A description of the service and period (for example, October SEO).
- The amount in USD and the accepted payment methods.
What should the contract cover before you pay?
At minimum: scope, price, payment terms and who owns what. If any of that isn't in writing, it's what the first dispute will be about. An English-language contract also lets your accountant or attorney review it without a translation.
- Scope: what's included and what isn't (pages, languages, rounds of revisions).
- Price and currency: amount in USD, per project or per month.
- Payment method and schedule: how and when.
- Ownership: the domain in your name, plus handover of logins and files. On sites Dizayn builds, managed hosting is included and the domain is registered to the client.
- Paperwork: a commitment to deliver the W-8 before the first invoice.
- Exit: how either side ends the contract and what you receive when it ends.
Comparing options? See what a Mexican agency charges and nearshore vs. offshore vs. a US agency.
Want real numbers? Check our pricing or get in touch and we'll confirm the payment method that works best for your team.
FAQ
- What payment methods does Dizayn accept?
- PayPal (credit or debit card) and international bank wire. Every invoice is in US dollars and the contract is in English.
- Can I pay with a company credit card?
- Yes, through PayPal. You don't need a PayPal balance: you pay with the card like any online purchase, and it shows on your statement as a vendor payment your bookkeeper can match to the invoice.
- What happens if a foreign vendor never gives me a W-8?
- The IRS says that if you can't document a payee's status, the presumption rules require you to treat them as a non-exempt US person. That can create work for your accountant, so ask for the form before the first invoice, not at year end.
- How often does a W-8 need to be renewed?
- The IRS instructions say a W-8BEN generally stays in effect from the signing date until the last day of the third succeeding calendar year, unless circumstances change. Your accountant can request a fresh one when it expires.
- Is there a language barrier with a Mexican agency?
- Not with Dizayn. The contract and invoices are in English so your accountant and bank can read them as is, and calls, emails and reviews can happen in English, Spanish or both.