.svg)
.svg){kind=icon}
Mexico stopped pricing the risk at the border and started auditing it afterward. That is the whole of what happened to apparel valuation on September 15, 2026, and it is the sentence a CFO should read before the released cash reaches the balance sheet.
For almost twelve years, an apparel importer that declared a value below the reference published by the SHCP (Mexico's treasury ministry) financed the difference in a cuenta aduanera de garantía, a customs guarantee account, and waited out a twelve-month clock. On September 14, 2026, the SHCP derogated the annex that carried those reference prices, and from the following day the deposit stopped being triggered for the apparel fracciones arancelarias it covered. Our reactive piece on the derogation covers what changed on the pedimento (Mexico's customs declaration) and what to run before the next filing. This piece is about something else: what the cash coming back actually bought, and what an apparel operation should do with it for the next two years.
The short version is that a financing cost the importer controlled has been replaced by an audit exposure the importer does not control. The first is a line in the budget. The second is a contingency with no end date until the authority acts.
What the deposit actually was
On paper, the guarantee account was an anti-undervaluation measure, and the 1994 resolution that created the mechanism says so in its own title. In practice, for an importer whose declared value was correct, it worked as something much simpler: a twelve-month escrow with a known cost of capital.
The mechanics are in Article 86-A, fracción I of the Ley Aduanera. Whoever imports definitively and declares a value below the published estimated price guarantees the contributions and cuotas compensatorias on the difference, through a deposit in a guarantee account. The guarantee cancels twelve months after the import, unless the authority has started exercising its verification powers, in which case it holds until a final resolution. When it cancels, the same article provides that the importer recovers the amounts deposited along with the yields generated from the date of deposit. Since the November 2025 reform, the obligated party may also post the guarantee through a letter of credit issued by an institution authorized by the CNBV and registered with the SAT (Mexico's tax authority).
Every element of that instrument was knowable in advance. The trigger was arithmetic: a published number against a declared number. The amount was calculable before the goods moved. The term was fixed by the calendar. The counterparty was a bank or a brokerage house authorized under Article 84-A. The customs broker filed it on the importer's behalf, because Article 162, fracción VIII makes presenting that guarantee one of the broker's own obligations. Nothing about it depended on the authority selecting you.
That is what made it expensive and, at the same time, budgetable. A treasury team could model it per shipment, forecast the twelve-month recovery, and price the carry against the yield the account returned. For a compliant importer, it was never really a penalty. It was the cost of clearing apparel in Mexico, denominated in working capital, and it resolved itself without anyone at the authority having to make a decision.
What replaced it
The authority did not describe the derogation as a relaxation. The considerandos of the September 14 resolution ground it in the strengthening of risk analysis, audit and customs valuation mechanisms, and in the verification powers that the Ley Aduanera and other applicable law give the authority as alternatives to keep combating undervaluation in the textile and apparel sector, which the same paragraph describes as causing serious harm to the treasury. Read as a statement of intent, that is a sector being moved from one control to another. Read as a program, it is nothing yet: the text says what the authority may use, not what it will do. We hold to that distinction throughout this piece. What follows is what the instruments permit, not a forecast of enforcement.
Four instruments now carry the weight the deposit used to carry, and none of them was created on September 14.
The first is the value file. Article 59, fracción V of the Ley Aduanera requires an electronic file for each pedimento, and since January 1, 2026 that file must additionally contain the information and documentation evidencing the resources used to carry out the foreign trade operation. The article lists, expressly as illustrative rather than exhaustive, the CFDI, the commercial invoices or equivalent documents, the electronic payment transfers or letters of credit, transport, insurance and related costs, the contracts relating to the transaction, the documentation supporting the additions to and exclusions from transaction value under Articles 65 and 66, and any other record that rules designate as proof that the operation actually took place. Omitting the obligations of Article 59 is now an infraction in its own right under Article 176, fracción XIII. Under the estimated price regime, a thin value file on an apparel line was cushioned by a deposit that sat in front of it. It is not cushioned anymore.
The second is the Manifestación de Valor built on that file. On September 30, 2026, the SAT published on its portal the first anticipated version of the Third Resolution of Amendments to the RGCE for 2026, which extends the transitional scheme through October 31, 2026 and then phases in electronic transmission by customs regime, starting November 1, 2026 and reaching definitive imports on January 15, 2027. We set out how the earlier extensions moved when the SAT published them. For apparel, the point is the convergence: the deposit came off two weeks before the calendar that governs the declaration regime was rewritten. These are separate instruments from separate authorities and one did not cause the other, but an apparel operation experiences them as one event on one calendar.
The third is the broker's own exposure. Article 53, fracción II makes customs agents and agencies jointly liable for the contributions arising from the operations they handle, and Article 54, as reformed, makes them responsible for the accuracy of the data supplied, for the correct determination of the contributions, and for making sure the importer holds the documents that prove compliance. The practical consequence for an apparel importer is that the broker, who used to file the guarantee for you, now has a direct interest in the quality of the value file behind every declared price, because that file is what stands between the broker and a joint determination.
The fourth is the padrón screen. Regla 1.3.3 of the RGCE lists, among the grounds for suspension from the Padrón de Importadores, a determination that the value declared on an import pedimento runs 50% or more below the average price of identical or similar merchandise imported within the ninety days before or after the operation. That ground never depended on an estimated price annex. For apparel, it is now the screen operating without a published figure in front of it, and suspension from the padrón is an operational stop, not a financial charge.
Set the two regimes side by side and the trade becomes visible. The deposit was sized by a table, triggered at the moment of entry, and reached every importer of the same fracción arancelaria identically. What sits in its place is sized by the audit, arrives on the authority's timing, and reaches the importers that risk analysis selects. The exposure did not shrink. It changed from a number on a deposit slip into a judgment about the quality of a file, and the file is the only part of that equation the importer still controls.
What an operation should do with the released capital
The temptation is to treat the release as free cash and let it flow to wherever working capital is tightest. That is a legitimate decision for a treasury team to make, and it is the wrong one for an apparel importer in this posture, for one reason: the capital was never idle. It was doing a job. It was standing in front of a value file so that the file did not have to stand on its own. Take the capital away and the file has to.
An apparel importer we work with in the corridor, a mid-sized operation with lines across several fracciones arancelarias that Anexo 4 used to cover, saw the change first in its restricted cash forecast. The deposits that would have been posted in the fourth quarter simply did not appear on the schedule, and the question that reached the CFO was where to redeploy the difference. When the trade compliance lead pulled the value files behind the entries that had carried a guarantee in the previous twelve months, the pattern was consistent: invoices and pedimentos on every line, payment evidence on most, contracts on some, and the documentation supporting additions and exclusions under Articles 65 and 66 on almost none. The deposit had been quietly substituting for the last two items for years. Nothing in the September 14 resolution instructs anyone to build them. The released capital went to building them first, and the redeployment conversation was postponed to the first quarter of 2027.
That sequence is the argument. The right use of a working-capital release in a sector the authority has just described as harming the treasury is to fund the evidence the new posture will test. Three things belong at the front of that queue.
The value support on every line the deposit used to cover. Not the invoice, which everyone has, but the transaction documentation that ties the invoice to the payment, the related-party analysis where it applies, and the documentation for the Article 65 additions and Article 66 exclusions that the electronic file now has to hold. This is line-level work and it does not scale by memo.
The contract file. Article 59 names the contracts relating to the transaction among the documents the file must contain, and the Manifestación de Valor asks for the general data of those same contracts. An apparel operation that buys on purchase orders and framework agreements it has never assembled in one place has two reasons to assemble them now, and the phased calendar that reaches definitive imports in January 2027 is the last comfortable window to do it.
The internal control that keeps the file current. A file built once in the fourth quarter of 2026 and never maintained is the estimated price mechanism in reverse: a control that looked complete on the day it was set up and decayed without anyone noticing. The guarantee resolved itself by the calendar. The file does not resolve at all. It has to be run.
The treasury reframing that makes this legible to a CFO takes one sentence. The deposit was a known cost with a known recovery date, and it belonged in the budget. What replaced it is a contingent liability of unknown size and unknown timing, and the only lever that moves its probability is the evidence behind the declared value. Spending part of a released deposit to reduce a contingency is not a compliance expense. It is the same risk management the deposit was performing, done by the importer instead of by the treasury, at a fraction of the carry.
Across more than 190,000 customs operations a year at 39 or more ports, the operations that handle a change like this well are the ones that treat the withdrawn control as a question rather than as an ending. The question is what the control was standing in for. Answer it, fund it, and the redeployment conversation can happen from a position of knowing what the cash bought.
From a line in the budget to a contingency with no date
The estimated price mechanism had one merit that gets lost in the relief of seeing it go: it ended. Twelve months after the import, absent an audit, the deposit came back with its yield and the entry closed. The instruments that now carry the weight do not have a twelve-month clock. They have the authority's verification powers, a value file that must be produced on request, a declaration regime whose calendar was rewritten on September 30 and now runs by regime into January 2027, a broker with a direct interest in the file's quality, and a padrón screen that operates on statistics rather than on a published table.
Mexico stopped pricing the risk at the border and started auditing it afterward. For a compliant apparel importer, that is a better regime to operate under, because the cost of proving a correct value is lower than the cost of financing a reference price you were never below in substance. It is also a regime in which the proof has to exist before anyone asks for it, and the moment the cash comes back is the last moment when funding that proof is cheap.
Talk to a Joffroy expert about a valuation file review across your apparel lines, scoped to the entries that carried a guarantee in the last twelve months and to the Manifestación de Valor calendar that now reaches definitive imports on January 15, 2027.
TRADE. UNDER CONTROL.
