How to Collect and Reconcile US Customer Payments from Mexico

Understanding how to collect US customer payments from Mexico involves two tasks: choosing a way to receive funds that works for your business and verifying which invoices each deposit covers. Proof of transfer does not replace confirmation that funds have been credited, and a credit does not mean the entire balance has been paid.

This need becomes more important as exports grow. On October 27, 2026, Expansión reported that Mexican exports in September grew 37.9% year over year. INEGI also reported a 43.5% year-over-year increase in non-oil exports to the United States. For treasury teams, the operational challenge is turning sales into payments that can be identified: knowing who paid, how much was received, and what remains outstanding.

1. How to collect US customer payments from Mexico: choose a payment method

US virtual accounts for businesses can provide account details for receiving payments through supported local payment methods. SWIFT, meanwhile, is a messaging network used to send international transfer instructions between financial institutions. They are not equivalent products: an account receives funds, while a network communicates transfer instructions.

In practice, the comparison is between receiving funds using US account details and requesting an international transfer to an eligible account.

Criterion	US virtual account	International transfer via SWIFT
Availability	Subject to assessment of the business, provider, and banking partners	Subject to the institutions, countries, and accounts involved
Currency	Confirm USD receipt and conditions for holding or withdrawing funds	Confirm sending and receiving currencies; review potential conversions
Payment method	ACH or domestic wire transfer, only if enabled	International transfer using the corresponding bank details
Fees	Review receiving, withdrawal, conversion, and other applicable fees	Review sending, intermediary, and receiving fees
Required details	Beneficiary, account, bank, and routing number for the payment method	Beneficiary, account, bank, SWIFT/BIC, and any additional requested details
Identification	Reference and transaction details, depending on the service	Reference and available tracking documentation

Do not assume every customer can use every payment method. Ask their accounts payable team to confirm which transfers their bank supports and what information it needs to register the beneficiary. Also check Nuvex's coverage to review availability for your transactions.

2. Validate the account before sending instructions

Before adding new bank details to your invoices, confirm the following with the provider:

• Account ownership and beneficiary: which name the customer should enter and whether an additional reference is needed to allocate the deposit.
• Supported payment methods: whether the account receives ACH, US domestic wire transfers, SWIFT, or other payment types.
• Permitted currencies and transactions: what you can receive and how you can access the funds afterward.
• Restrictions: applicable limits, third-party payments, and accepted business activities.
• Available documentation: which receipts or reports can be used to identify each credit.

Nuvex offers US virtual accounts through banking partners, as well as receipt of funds via SWIFT. The right option depends on the assessment of your business and the transaction; do not assume all features are available to every business.

Review Nuvex's international payment and receiving services and prepare your company information for business verification, known as KYB. Confirm that the service is enabled before asking the customer to send money.

3. Provide clear, reusable payment instructions

Prepare an instruction sheet for each account and payment method. Avoid mixing ACH instructions with those for a domestic or international wire transfer: the required bank identifier may differ.

Template to share with your customer

Beneficiary: [exact name provided by the provider]
Receiving bank: [name]
Account: [validated number]
Authorized payment method: [ACH, domestic wire transfer, or SWIFT]
Bank identifier: [routing number or SWIFT/BIC, as applicable]
Additional details: [address, intermediary, or mandatory reference, if required]
Currency and amount: [USD and agreed amount]
Payment reference: [customer and invoice number]
Remittance advice: send proof of transfer and a breakdown of the invoices covered to [accounts receivable email].

If the customer pays several invoices in a single transfer, request a breakdown with the invoice number and amount applied to each one. If the transfer requires a mandatory reference, ask the customer to keep it and send the invoice breakdown separately.

Also agree on who will cover applicable fees and how discrepancies will be resolved. Any change in account details should be verified through a previously established channel, not just by replying to the email announcing the change.

4. International payment reconciliation: from account credit to invoice

International payment reconciliation involves matching received transactions to accounts receivable and explaining any discrepancies. It helps to distinguish three statuses: payment announced, funds credited, and payment reconciled.

Follow this sequence:

1. Record the payment notice. Save the customer, sending date, amount, currency, reference, and listed invoices. Do not close out the balance yet.
2. Confirm receipt. Review the transaction in the receiving account and its status; do not rely solely on the customer's proof of transfer.
3. Identify the payer. Compare the sender's name, reference, and amount. If they do not match, request clarification before allocating the funds.
4. Apply the payment. Allocate the amount across invoices according to the confirmed breakdown. Do not automatically choose the oldest invoice.
5. Classify discrepancies. Distinguish between partial payments, documented fees, authorized discounts, credit memos, and unidentified deposits.
6. Close out or follow up. Mark an invoice as paid only when its balance has been covered or adjusted with supporting documentation and authorization.

Keep the invoice, payment notice, evidence of the credit, and clarifications together. This makes it easier to review the history without reconstructing it from emails and spreadsheets.

5. Illustrative example: a deposit does not always settle an invoice

All amounts below are illustrative; they do not represent Nuvex fees or actual bank charges. A Mexican business has two dollar-denominated invoices and receives a deposit accompanied by a breakdown from the customer:

| Item | Invoice A | Invoice B | Total | |---|---|---:|---:|---:| | Invoiced amount | USD 8,000 | USD 4,000 | USD 12,000 | | Allocation specified by the customer | USD 8,000 | USD 3,900 | USD 11,900 | | Balance requiring clarification | USD 0 | USD 100 | USD 100 |

The confirmed credit is USD 11,900. Invoice A can be marked as paid; invoice B still has USD 100 outstanding while the discrepancy is clarified.

Do not automatically record that USD 100 as a fee. It could reflect a partial payment, a commercial deduction, or a charge, but supporting documentation is needed. If the customer says they sent USD 12,000, request the complete proof of transfer and ask for a review of the transfer's path.

Any adjustment must follow internal approval procedures. Consult your accountant about how to record it and the tax obligations related to the payment received.

6. Checklist for closing out each payment

Before considering a transaction reconciled, verify:

• The transaction appears as credited, and you have reviewed its status.
• You have identified the customer and the sender.
• The currency matches the agreed payment obligation.
• You have the invoice-by-invoice breakdown.
• The applied amount matches the credit, or any discrepancy is documented.
• Each outstanding balance has an assigned owner and a next step.
• Adjustments have supporting documentation and authorization.
• You have saved the records and communicated the updated balance to the customer.

Unidentified deposits should remain separate from paid invoices until their source and allocation are clarified.

7. Conclusion: collect with clear instructions and reconcile with evidence

Figuring out how to collect US customer payments from Mexico requires more than sharing account details. The process works when you choose an enabled payment method, provide precise instructions, and match each credit to its invoices and discrepancies.

Talk to a Nuvex advisor to find out which receiving options are available to your business, what details your customer needs, and what conditions you should review before the first payment. This will help you organize collections using confirmed information, without assuming guaranteed costs or timelines.