Mandatory mobile line registration threatens collections and could tighten Mexico’s credit portfolio

Collection agencies and financial institutions warn that disconnecting unregistered lines could slow loan recoveries and raise delinquency in vulnerable segments.

The imminent shutdown of unregistered mobile lines—scheduled for July 1—has raised alarms among collection firms and parts of the financial sector, which warn of a direct hit to payment recovery and, by extension, to the health of Mexico’s credit portfolio. The Association of Collection and Legal Services Professionals (APCOB) estimates that the annual impact from reduced borrowers’ “contactability” could range from 8.5 billion to 28.6 billion pesos, depending on how many users actually end up cut off and for how long.

At the core, the problem is operational: the mobile phone is the primary channel for managing past-due payments, payment plans, and restructurings. In practice, calls, SMS, and instant messaging account for most recoveries. If a meaningful share of lines is deactivated, collections become slower, more expensive, and less effective—especially in the earliest delinquency buckets, when timely outreach often makes the difference between bringing a loan current and pushing it into more severe delinquency.

According to figures released by the telecom regulator, as of June 13, 60.6 million lines had been linked to the account holder’s CURP out of an estimated universe of 161 million—about 38%. The official goal of this linkage is to reduce phone fraud and extortion, a persistent problem that erodes consumer and business confidence and imposes significant costs on the economy.

APCOB argues that even while acknowledging the need to fight crime, the transition could create disruptions in households’ and microbusinesses’ “payment chain.” In particular, it warns that a mass shutdown of unregistered lines could complicate restructuring negotiations and the normalization of delinquencies—right as consumer credit has expanded across multiple segments and families face pressure from the cost of living, still-elevated interest rates, and a labor market that, while resilient, is uneven across regions and industries.

The association modeled three scenarios. In a moderate case, the industry would fail to recover roughly 8.5 billion pesos a year; in a baseline scenario, 16.8 billion; and in the most critical, 28.6 billion. The key assumption is the loss of effective contact: not all unregistered lines will be disconnected at the same time, and some users may complete the process at the last minute, while certain messaging services may still work over Wi‑Fi. Even so, the main risk is a temporary communication “gap” that can be enough for a delinquency to worsen.

Exposure would not be uniform. The fintech ecosystem and digital banks—whose customer service and collections models rely disproportionately on mobile—stand out as among the most vulnerable: interaction via WhatsApp or other messaging channels is, in many cases, the preferred (or only) way to engage with customers. That means line cutoffs could translate into lower recoveries, higher loan-loss reserves, and tighter underwriting criteria, affecting access to credit in niches where these institutions have gained ground.

From the nonbank side, the Association of Multiple-Purpose Financial Companies (ASOFOM) said its members will comply with the provisions, but called for stronger dialogue around safeguarding, storing, and using personal data. This is no small issue: user trust is essential for any registration scheme to work, and the financial sector faces growing cybersecurity and data-protection demands amid greater digitization of payments and services.

Delinquency, the cost of credit, and a potential domino effect

The macro risk is not an immediate “collapse” of the system, but a gradual deterioration in delinquency indicators and the cost of managing loan books—especially at institutions with smaller-ticket, higher-turnover portfolios. In Mexico, delinquency tends to be concentrated by product and by type of lender: segments such as unsecured personal loans, certain consumer-finance structures, and parts of smaller lenders’ portfolios are typically more sensitive to income shocks and operational frictions. If collections become less efficient, the usual outcome is more past-due accounts, higher collections expenses, larger provisions, and eventually tighter credit terms (rates, fees, tenors, or amounts). In a country where a sizable share of households operates with thin financial cushions, any tightening can amplify a slowdown in consumption.

Timing also matters. In an economy that depends heavily on domestic momentum, consumer credit acts as a lubricant for purchases of durable goods, education payments, and medical expenses. A contactability shock may sound technical, but it can spill over into the real economy if more families fall behind and the ability to restructure in time shrinks. At the same time, cracking down on fraud and extortion also brings economic benefits: it reduces wealth losses, prevents illicit transfers, and boosts confidence in digital channels. The debate, then, is how to implement the measure without generating disproportionate side effects.

In day-to-day operations, collections are typically divided into stages: during the first 90 days past due, an institution’s in-house team tries to bring the account current; afterward, part of the effort is routed to specialized agencies. If mobile contact is constrained, the funnel narrows from the start: fewer reminders, fewer payment agreements, and a lower likelihood that the customer resumes cash flow. That raises the volume that reaches later stages, where recovery is harder and more costly.

To mitigate the impact, the industry has floated options such as phased registration, grace periods, or transitional arrangements for lines tied to accounts currently in collections—always under clear rules. On the regulatory side, the challenge will be balancing the urgency of fighting crime with an implementation that does not unnecessarily undermine financial formality or payment compliance, particularly in the most digitized segments.

Looking ahead, this episode could accelerate two trends: greater diversification of contact channels (email, in-app notifications, home visits where applicable and regulated, and biometric verification) and added pressure to improve digital literacy and trust in data handling. In the short term, delinquency performance and the market response—including the stance of banks, sofomes, and fintechs regarding a potential extension—will be key to determining whether the impact remains an operational adjustment or turns into a tightening of consumer credit.

Overall, disconnecting unregistered lines forces the country into a delicate balance: tackling a real security problem without introducing frictions that complicate collections and debt restructurings—especially in an economy where credit and digitization are advancing at different speeds across population groups.