Taxback
How to get your tax back!
Note: TaxBack will charge a commission of 35% of the total tax refund, as specified by the Mexican revenue service for all concessionaries in the VAT Return for Foreign Tourists Program.
You can see the complete information from the Mexican government here (in spanish).
Shop at TaxBack affiliated shops. You can identify them by the TaxBack Logo at the door, or ask the attendant if they are affiliated.

Ask the shop attendant for an official invoice, and save all your official invoices and credit card receipts when you shop. Make sure the invoice has a DETAILED BREAKDOWN of all your purchases, and a breakdown of the cost of goods vs. taxes.

On the last day of your trip, make photocopies of your passport, boarding pass and FMM (Mexican immigration form). Be aware that some airlines take your FMM when you check in for your departing flight, so preferrably make a photocopy at your hotel when you check out of your room.

Bring all your receipts, invoices and photocopies to the TAXBACK module at the airport, along with the bank name, account number and/or services or credit card number where you would like your taxes to be reimbursed.
Your reimbursement will take place 40 days after presenting your documents. You can track the status of your reimbursement on our website.
You can save time by printing and filling out our tax refund form before leaving for the airport.
You can download the form from here.
The following products and services are not subject to tax reimbursement:
Food, beverage, transportation and hospitality services (hotels, restaurants, taxicabs, airplane tickets, etc.)
Groceries and food products
Books
Medication
Opened bottles of alcoholic beverages