Resources

The official portals, with a guide.

Everything a serious loan lets you verify — your history, the counterparty, the payments, the invoices, and the reference rates — lives in public, free portals. Here are the ones we use every day, and what each is for.

Before signing: verify histories and counterparties

Credit Information Agency

Buró de Crédito — Special Credit Report

Your official credit history: which loans you have, how you have paid, and who has checked you. You are entitled to a free Special Credit Report every 12 months by requesting it directly from Buró de Crédito.

House tipDownload it before applying for any loan: you will know exactly what your lender will see, and you will spot errors or accounts you do not recognize in time to dispute them. No one should charge you to "clean it up" — that does not exist.

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CONDUSEF

CONDUSEF — SIPRES and complaints portal

The commission that defends users of financial services. In its SIPRES registry you can verify whether a "finance company" or SOFOM is actually registered, and check its complaints record.

House tipIf someone presents themselves as a SOFOM or financial entity, look them up in SIPRES before signing: without a current registration, the label is just marketing (LGOAAC art. 87-B). Tunton does not appear there — we are not a SOFOM and we do not take deposits: we lend our own capital.

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Verify payments and documents

Banco de México

CEP — Electronic Payment Receipt (SPEI)

Generate the official receipt for any SPEI transfer, with the date, time, accounts, and amount certified by Banxico. It is the definitive proof that a disbursement or payment took place.

House tipKeep the CEP for your loan disbursement and for every payment you make or receive: in any clarification or lawsuit, that receipt is worth more than ten witnesses.

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SAT

CFDI Validator

Check in seconds whether an invoice (CFDI) is authentic and current before the SAT, with its tax folio, issuer, and recipient.

House tipKey in invoice advances (factoring): before accepting accounts receivable as collateral, we validate every assigned CFDI — you can do the same with any invoice offered to you as collateral or payment.

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Market references

Banco de México

SIE — TIIE, CETES and UDIS

Banxico's Economic Information System publishes the official references: TIIE (the interbank rate to which loans are indexed), CETES auction results, and the daily value of the UDIS.

House tipBeing offered "TIIE + 8"? Here you can see how much the TIIE is today. Want to know whether a private rate is reasonable? Compare it against the current CETES auction — it is the starting point for our calculators.

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Anti-money-laundering compliance

SAT / UIF

Vulnerable Activities Portal (SPPLD)

The official system for registering in the vulnerable-activities roster, filing notices, and consulting the LFPIORPI thresholds (in UMA) — the one that applies to habitual lenders is art. 17, section IV.

House tipIf you lend habitually, this portal is your window: identification on every transaction and a notice from 1,605 UMA ($188,282.55 with the 2026 UMA). The full detail is in our AML article for lenders.

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Three rules when using them

They are all free for their basic queries (Buró de Crédito, once every 12 months). Anyone who charges you to "handle" these procedures for you is selling what the law gives you for free.
Verify the official URL (gob.mx, banxico.org.mx, burodecredito.com.mx): there are copycat sites that harvest data. Get there by typing the address, not from ads.
No query replaces advice for your specific case; they are verification tools, and that is how we use them in our method.

Next step

Tell us about your transaction

Tell us how much you need and what collateral you can offer. We will tell you frankly whether it is viable and how we would structure it.

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