diff --git a/regimes/mx/README.md b/regimes/mx/README.md
index 3ab0ee89..5f1b68df 100644
--- a/regimes/mx/README.md
+++ b/regimes/mx/README.md
@@ -4,6 +4,13 @@ Mexico uses the CFDI (Comprobante Fiscal Digital por Internet) format for their
 
 Example MX GOBL files can be found in the [`examples`](./examples) (YAML uncalculated documents) and [`examples/out`](./examples/out) (JSON calculated envelopes) subdirectories.
 
+## Table of contents
+
+* [Public Documentation](#public-documentation)
+* [Zones](#zones)
+* [Local Codes](#local-codes)
+* [Complements](#complements)
+
 ## Public Documentation
 
 - [Formato de factura (Anexo 20)](http://omawww.sat.gob.mx/tramitesyservicios/Paginas/anexo_20.htm)
@@ -213,3 +220,27 @@ The following GOBL maps to the `10101602` ("live ducks") value to the `ClaveProd
   ]
 }
 ```
+
+## Complements
+
+Complements let you include additional complementary information to your GOBL documents. The following sections describe the complements made available by the MX regime, their purpose and how you can use them.
+
+### Fuel Account Balance
+
+The _Fuel Account Balance_ carries the data to produce a CFDI’s [“Complemento de Estado de Cuenta de Combustibles para Monederos Electrónicos” (version 1.2 revision B)](https://www.sat.gob.mx/consulta/21885/genera-tus-facturas-electronicas-con-el-complemento-para-el-estado-de-cuenta-de-combustibles-para-monederos-electronicos) providing detailed information about fuel purchases made with electronic wallets.
+
+In Mexico, e-wallet suppliers use this complement to report this information in the invoices to their customers.
+
+Learn more about this complement here:
+* [Schema Documentation](https://docs.gobl.org/draft-0/regimes/mx/fuel_account_balance)
+* [Example GOBL document](./examples/out/fuel-account-balance.json)
+
+### Food Vouchers Complement
+
+The _Food Vouchers Complement_ carries the data to produce a CFDI's [“Complemento de Vales de Despensa” (version 1.0)](https://docs.gobl.org/draft-0/regimes/mx/food_vouchers_complement) providing detailed information about food vouchers issued by an e-wallet supplier to its customer's employees.
+
+In Mexico, e-wallet suppliers use this complement to report this information in the invoices to their customers.
+
+Learn more about this complement here:
+* [Schema Documentation](https://docs.gobl.org/draft-0/regimes/mx/food_vouchers_complement)
+* [Example GOBL document](./examples/out/food-vouchers-complement.json)