diff --git a/include/bluetooth/buf.h b/include/bluetooth/buf.h
index 9f0910a6554..03855daf6b3 100644
--- a/include/bluetooth/buf.h
+++ b/include/bluetooth/buf.h
@@ -79,8 +79,22 @@ struct bt_buf_data {
 /** Data size needed for HCI Event RX buffers */
 #define BT_BUF_EVT_RX_SIZE BT_BUF_EVT_SIZE(CONFIG_BT_BUF_EVT_RX_SIZE)
 
-/** Data size needed for HCI ACL or Event RX buffers */
-#define BT_BUF_RX_SIZE (MAX(BT_BUF_ACL_RX_SIZE, BT_BUF_EVT_RX_SIZE))
+#if defined(CONFIG_BT_ISO)
+#define BT_BUF_ISO_RX_SIZE BT_BUF_ISO_SIZE(CONFIG_BT_ISO_RX_MTU)
+#define BT_BUF_ISO_RX_COUNT CONFIG_BT_ISO_RX_BUF_COUNT
+#else
+#define BT_BUF_ISO_RX_SIZE 0
+#define BT_BUF_ISO_RX_COUNT 0
+#endif /* CONFIG_BT_ISO */
+
+/** Data size needed for HCI ACL, HCI ISO or Event RX buffers */
+#define BT_BUF_RX_SIZE (MAX(MAX(BT_BUF_ACL_RX_SIZE, BT_BUF_EVT_RX_SIZE), \
+			    BT_BUF_ISO_RX_SIZE))
+
+/** Buffer count needed for HCI ACL, HCI ISO or Event RX buffers */
+#define BT_BUF_RX_COUNT (MAX(MAX(CONFIG_BT_BUF_EVT_RX_COUNT, \
+				 CONFIG_BT_BUF_ACL_RX_COUNT), \
+			     BT_BUF_ISO_RX_COUNT))
 
 /** Data size needed for HCI Command buffers. */
 #define BT_BUF_CMD_TX_SIZE BT_BUF_CMD_SIZE(CONFIG_BT_BUF_CMD_TX_SIZE)
diff --git a/subsys/bluetooth/host/buf.c b/subsys/bluetooth/host/buf.c
index 8171502d2fb..159a60065c2 100644
--- a/subsys/bluetooth/host/buf.c
+++ b/subsys/bluetooth/host/buf.c
@@ -53,7 +53,6 @@ NET_BUF_POOL_FIXED_DEFINE(evt_pool, CONFIG_BT_BUF_EVT_RX_COUNT,
 			  BT_BUF_EVT_RX_SIZE, 8,
 			  NULL);
 #else
-#define BT_BUF_RX_COUNT MAX(CONFIG_BT_BUF_EVT_RX_COUNT, CONFIG_BT_BUF_ACL_RX_COUNT)
 NET_BUF_POOL_FIXED_DEFINE(hci_rx_pool, BT_BUF_RX_COUNT,
 			  BT_BUF_RX_SIZE, 8,
 			  NULL);
diff --git a/subsys/bluetooth/host/hci_raw.c b/subsys/bluetooth/host/hci_raw.c
index 7036e23cd01..e3d765bed02 100644
--- a/subsys/bluetooth/host/hci_raw.c
+++ b/subsys/bluetooth/host/hci_raw.c
@@ -38,7 +38,6 @@ static uint8_t raw_mode = BT_HCI_RAW_MODE_H4;
 static uint8_t raw_mode;
 #endif
 
-#define BT_BUF_RX_COUNT MAX(CONFIG_BT_BUF_EVT_RX_COUNT, CONFIG_BT_BUF_ACL_RX_COUNT)
 NET_BUF_POOL_FIXED_DEFINE(hci_rx_pool, BT_BUF_RX_COUNT,
 			  BT_BUF_RX_SIZE, 8, NULL);
 NET_BUF_POOL_FIXED_DEFINE(hci_cmd_pool, CONFIG_BT_BUF_CMD_TX_COUNT,