Free POS Software in Mexico 2026: Mercado Pago, CoDi, abarrotes

In Mexico, the tienda de abarrotes (corner store) is the heart of neighbourhood retail — and the phone is now part of the cash drawer. More and more customers pay with Mercado Pago, SPEI transfers, or CoDi, on top of the usual cash, in Mexico City, Guadalajara, Monterrey, and across the country. A store that only takes cash starts to leave sales behind.

So the right till must do four simple things: record each payment method separately (cash, Mercado Pago, CoDi, card), handle the peso (MXN), work offline when the internet drops, and cost nothing per month. That is exactly what a changarro needs — and rarely what traditional registers offer, since most come with hardware and a monthly plan.

In Mexico it pays to lean on what people already use. Mercado Pago dominates: it takes cards, SPEI transfers, OXXO cash, and Mercado Pago balance, and its Point terminal handles card payments. CoDi (the Bank of Mexico's QR payment standard) is growing for small amounts, and SPEI transfers are instant.

The critical point is not receiving the payment — it is recording it at the till. For every sale:

- The customer pays by Mercado Pago, CoDi, SPEI, or card. - You confirm the payment on your side (your account or terminal), not the customer's screenshot, which is easily faked. - You log the sale with the right method, so your end-of-day cut clearly splits cash from each digital method.

Without that discipline, reconciling your Mercado Pago statements against the drawer is guesswork. A till that creates one payment method per channel turns it into a clean daily report.

digabloPos is free for life on its core POS:

- Records Mercado Pago, CoDi, SPEI and card as separate payment methods, so your daily cut splits cash from each digital method. - Native peso (MXN). Prices, tickets, and reports in pesos and centavos, the way your customers expect. - Works offline. Sell, track stock, and print tickets with no internet; everything syncs when the signal returns. Built for power cuts and patchy data. - No monthly fee. Unlimited sales and products, two staff, tickets, reports — free. Optional modules only if you grow. - Any Android phone. No expensive terminal; an optional Bluetooth thermal printer for tickets. - Customer credit (fiados). Track credit sales and each customer's balance — the corner-store notebook, but clean and tallied.

Mexico has strong local options — several genuinely free. Here is where they sit:

- digabloPos — free for life, offline-first, pesos, records Mercado Pago/CoDi/card, on any Android. Best for zero recurring cost and no dependence on the signal. - Tiendatek — very popular free POS for abarrotes (used by thousands of tenderos), with inventory, fiados, and Mercado Pago terminal integration. - AbarrotesPDV — free software that turns your computer into a POS, simple for corner stores. - Eleventa — popular register, free to start with a paid plan for advanced features. - Alegra — POS with a free trial then paid plans (from ~$215 MXN/month); strong on invoicing. - Loyverse — capable free global app, with no Mexico-specific support and paid add-ons.

If your checklist is "no monthly fee + offline + pesos + Mercado Pago/CoDi," digabloPos and Tiendatek are the strongest free starting points.

The same free core adapts to almost any Mexican trade:

- Abarrotes / changarro. Barcodes, real-time stock, fiados for neighbourhood regulars, and clean Mercado Pago reconciliation. - Fonda, taquería, and café. Quick item buttons, send to kitchen, and card or CoDi at the counter. - Pharmacy. Batch and expiry tracking, scan the box to identify the product automatically. - Tianguis and street selling. Everything on the phone, offline, no hardware: you sell even with no signal and it all syncs later.

You start with the free till and only switch on a module (kitchen, batches, multi-store…) the day you actually need it.

An honest, important note for Mexico. A free till covers your day-to-day operations — recording sales, tracking stock, reconciling Mercado Pago, and producing a clean cut. That is the operational backbone most corner stores need.

But the invoice is a separate tax layer. In Mexico, the CFDI 4.0 electronic invoice is mandatory and the only one valid before the SAT since April 2023; a sales ticket is not a CFDI. For customers who ask for a factura, the CFDI is stamped through a PAC (authorized certification provider) or the SAT portal, with the recipient's RFC and tax regime. Standard VAT (IVA) is 16%, and many small businesses file under the Régimen Simplificado de Confianza (RESICO).

So treat digabloPos as your point-of-sale and reporting system, and issue your CFDIs through your invoicing provider (PAC) or the SAT when asked. The clean sales base digabloPos gives you makes that bookkeeping far easier.

1. Download digabloPos on your Android phone (or open it in a browser). 2. Add your products (or import a list) and set the Mexican peso (MXN). 3. Add Mercado Pago, CoDi, and card as payment methods. 4. Make your first sale — pair a Bluetooth printer if you want tickets.

No contract, no monthly fee, and it keeps selling when the internet drops.