Privacy notice

Fiscontable (fiscontable.app) and Fiscontable Agent for Windows · Last updated: November 10, 2026

This is a summary in English. The Spanish version is the complete notice and prevails if there is any difference.

1. Who is responsible

Fiscontable is an online service for accountants and accounting firms in Mexico, offered at fiscontable.app. The party responsible for your personal data is the owner of the Fiscontable service, under Mexico's Federal Law on Protection of Personal Data Held by Private Parties. For any privacy matter, contact us .

2. What data we use

Your details: name, email, phone, firm name and team size (from the demo form or your account), your password (stored in a form nobody can read, including us) and your profile photo if you add one.
The companies you manage: taxpayer ID (RFC), legal name, tax regime and obligations.
SAT credentials: the e.firma and digital seal certificate (.cer and .key files and their password) and the SAT password you register so the system can run procedures on behalf of each company.
Tax documents: invoices (XML and PDF), tax status certificates, compliance opinions, receipts and tax mailbox notices, downloaded from the SAT at your request or uploaded by you.
Your clients' email addresses, which you enter to send them invoices or documents.
Payment details for your plan or credits (amount, reference, proof of payment).
Technical data: IP address, browser, access date and time and trusted devices; for the Agent, the PC name, Windows version and program version.

We do not ask for sensitive data. Third-party tax data (your clients') is processed only on your behalf.

3. What we use it for

To provide the service: download and organize SAT documents, validate and issue invoices, prepare worksheets, remind you of due dates and send documents by email when you set it up.
To identify you, keep your account secure and prevent abuse.
To manage your demo, plan, credits and payments, and to answer your questions.
Optional: to send you Fiscontable news and offers by email or WhatsApp, only if you ticked that box. You can opt out at any time.

We do not sell your data, share it for third-party advertising or build commercial profiles.

4. What Fiscontable Agent does on your PC

Fiscontable Agent is an optional program for Windows. It runs on your PC, with your internet connection and your browser, the SAT procedures you request on the web.

Your PC calls the server; the server never connects into your PC. The Agent opens no ports to the internet.
When you connect it, an identifier for that PC is stored on your PC, encrypted with your Windows account. You can disconnect it at any time.
The e.firma arrives only for each procedure, is used in a private temporary folder and is deleted when the procedure ends.
It keeps a copy of downloaded documents in Documents\Fiscontable (this can be turned off) and a log of what it did.
It only reads the tax mailbox: it never opens a pending notification.
It sends the server only the result of each procedure and the technical data described above. It does not read other files, record what you type or take screenshots.
If you install it from Microsoft Store, updates arrive through the Store. Microsoft handles download data under its own privacy statement.

5. Who it is shared with

Only with those needed to provide the service: Mexico's tax authority (SAT), where your procedures are carried out; the authorized certification provider (PAC) that stamps the invoices you issue; Cloudflare, which protects the connection and sign-in and counts site visits without identifying people; our email provider; and authorities, only when a law or a competent order requires it. Some providers may process data outside Mexico.

6. How we protect it

Everything travels encrypted (HTTPS).
e.firmas, digital seals and SAT passwords are stored encrypted on the server.
Sign-in requires a password and a second step; each account sees only its own companies and documents.
We keep a log of sign-ins and connected PCs; you can close sessions, remove trusted devices and disconnect PCs.

7. How long it is kept

While your account is active or until you delete it. If you ask to cancel your account we delete your data, except what a law requires us to keep.

8. Your rights

You can ask to access, correct or delete your data, object to its use, withdraw your consent or stop receiving offers. Contact us with your name, your account email and your request. We answer within 20 business days.

9. Cookies and visit measurement

We use only the cookies needed to sign in, and we store preferences in your browser. We do not use advertising or third-party tracking cookies. Details are on the Cookies page.

10. Changes to this notice

If it changes, we publish the new version on this page with its date.