diff --git a/esphome/components/rc522/__init__.py b/esphome/components/rc522/__init__.py
index 970b867e79..7858213f06 100644
--- a/esphome/components/rc522/__init__.py
+++ b/esphome/components/rc522/__init__.py
@@ -7,7 +7,6 @@ from esphome.core import coroutine
 
 CODEOWNERS = ["@glmnet"]
 AUTO_LOAD = ["binary_sensor"]
-MULTI_CONF = True
 
 CONF_RC522_ID = "rc522_id"
 
diff --git a/esphome/components/rc522_i2c/__init__.py b/esphome/components/rc522_i2c/__init__.py
index 532adfce79..081536b6b1 100644
--- a/esphome/components/rc522_i2c/__init__.py
+++ b/esphome/components/rc522_i2c/__init__.py
@@ -6,7 +6,7 @@ from esphome.const import CONF_ID
 CODEOWNERS = ["@glmnet"]
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["rc522"]
-
+MULTI_CONF = True
 
 rc522_i2c_ns = cg.esphome_ns.namespace("rc522_i2c")
 RC522I2C = rc522_i2c_ns.class_("RC522I2C", rc522.RC522, i2c.I2CDevice)
diff --git a/esphome/components/rc522_spi/__init__.py b/esphome/components/rc522_spi/__init__.py
index 6ae163bcb4..2e5630f46d 100644
--- a/esphome/components/rc522_spi/__init__.py
+++ b/esphome/components/rc522_spi/__init__.py
@@ -6,6 +6,7 @@ from esphome.const import CONF_ID
 CODEOWNERS = ["@glmnet"]
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["rc522"]
+MULTI_CONF = True
 
 rc522_spi_ns = cg.esphome_ns.namespace("rc522_spi")
 RC522Spi = rc522_spi_ns.class_("RC522Spi", rc522.RC522, spi.SPIDevice)
diff --git a/tests/test1.yaml b/tests/test1.yaml
index 5695183f74..c2a79085b5 100644
--- a/tests/test1.yaml
+++ b/tests/test1.yaml
@@ -1982,10 +1982,15 @@ rc522_spi:
         ESP_LOGD("main", "Found tag %s", x.c_str());
 
 rc522_i2c:
-  update_interval: 1s
-  on_tag:
-    - lambda: |-
-        ESP_LOGD("main", "Found tag %s", x.c_str());
+  - update_interval: 1s
+    on_tag:
+      - lambda: |-
+          ESP_LOGD("main", "Found tag %s", x.c_str());
+
+  - update_interval: 1s
+    on_tag:
+      - lambda: |-
+          ESP_LOGD("main", "Found tag %s", x.c_str());
 
 gps:
   uart_id: uart0