diff --git a/subsys/bluetooth/controller/ll_sw/ull_conn.c b/subsys/bluetooth/controller/ll_sw/ull_conn.c
index 234a0e4445a..0f6f5c18d75 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_conn.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_conn.c
@@ -8141,40 +8141,75 @@ void ull_dle_max_time_get(struct ll_conn *conn, uint16_t *max_rx_time,
 	return dle_max_time_get(conn, max_rx_time, max_tx_time);
 }
 
+/*
+ * TODO: this probably can be optimised for ex. by creating a macro for the
+ * ull_dle_update_eff function
+ */
 uint8_t ull_dle_update_eff(struct ll_conn *conn)
 {
 	uint8_t dle_changed = 0U;
 
-	const uint16_t eff_tx_octets =
-		MAX(MIN(conn->lll.dle.local.max_tx_octets, conn->lll.dle.remote.max_rx_octets),
-		    PDU_DC_PAYLOAD_SIZE_MIN);
+	/* Note that we must use bitwise or and not logical or */
+	dle_changed = ull_dle_update_eff_rx(conn);
+	dle_changed |= ull_dle_update_eff_tx(conn);
+
+	return dle_changed;
+}
+
+uint8_t ull_dle_update_eff_rx(struct ll_conn *conn)
+{
+	uint8_t dle_changed = 0U;
+
 	const uint16_t eff_rx_octets =
 		MAX(MIN(conn->lll.dle.local.max_rx_octets, conn->lll.dle.remote.max_tx_octets),
 		    PDU_DC_PAYLOAD_SIZE_MIN);
 
 #if defined(CONFIG_BT_CTLR_PHY)
-	unsigned int min_eff_tx_time = (conn->lll.phy_tx == PHY_CODED) ?
-			PDU_DC_PAYLOAD_TIME_MIN_CODED : PDU_DC_PAYLOAD_TIME_MIN;
 	unsigned int min_eff_rx_time = (conn->lll.phy_rx == PHY_CODED) ?
 			PDU_DC_PAYLOAD_TIME_MIN_CODED : PDU_DC_PAYLOAD_TIME_MIN;
 
-	const uint16_t eff_tx_time =
-		MAX(MIN(conn->lll.dle.local.max_tx_time, conn->lll.dle.remote.max_rx_time),
-		    min_eff_tx_time);
 	const uint16_t eff_rx_time =
 		MAX(MIN(conn->lll.dle.local.max_rx_time, conn->lll.dle.remote.max_tx_time),
 		    min_eff_rx_time);
 
-	if (eff_tx_time != conn->lll.dle.eff.max_tx_time) {
-		conn->lll.dle.eff.max_tx_time = eff_tx_time;
-		dle_changed = 1;
-	}
 	if (eff_rx_time != conn->lll.dle.eff.max_rx_time) {
 		conn->lll.dle.eff.max_rx_time = eff_rx_time;
 		dle_changed = 1;
 	}
 #else
 	conn->lll.dle.eff.max_rx_time = PDU_DC_MAX_US(eff_rx_octets, PHY_1M);
+#endif
+
+	if (eff_rx_octets != conn->lll.dle.eff.max_rx_octets) {
+		conn->lll.dle.eff.max_rx_octets = eff_rx_octets;
+		dle_changed = 1;
+	}
+
+	return dle_changed;
+}
+
+uint8_t ull_dle_update_eff_tx(struct ll_conn *conn)
+
+{
+	uint8_t dle_changed = 0U;
+
+	const uint16_t eff_tx_octets =
+		MAX(MIN(conn->lll.dle.local.max_tx_octets, conn->lll.dle.remote.max_rx_octets),
+		    PDU_DC_PAYLOAD_SIZE_MIN);
+
+#if defined(CONFIG_BT_CTLR_PHY)
+	unsigned int min_eff_tx_time = (conn->lll.phy_tx == PHY_CODED) ?
+			PDU_DC_PAYLOAD_TIME_MIN_CODED : PDU_DC_PAYLOAD_TIME_MIN;
+
+	const uint16_t eff_tx_time =
+		MAX(MIN(conn->lll.dle.local.max_tx_time, conn->lll.dle.remote.max_rx_time),
+		    min_eff_tx_time);
+
+	if (eff_tx_time != conn->lll.dle.eff.max_tx_time) {
+		conn->lll.dle.eff.max_tx_time = eff_tx_time;
+		dle_changed = 1;
+	}
+#else
 	conn->lll.dle.eff.max_tx_time = PDU_DC_MAX_US(eff_tx_octets, PHY_1M);
 #endif
 
@@ -8182,10 +8217,6 @@ uint8_t ull_dle_update_eff(struct ll_conn *conn)
 		conn->lll.dle.eff.max_tx_octets = eff_tx_octets;
 		dle_changed = 1;
 	}
-	if (eff_rx_octets != conn->lll.dle.eff.max_rx_octets) {
-		conn->lll.dle.eff.max_rx_octets = eff_rx_octets;
-		dle_changed = 1;
-	}
 
 	return dle_changed;
 }
@@ -8258,7 +8289,7 @@ void ull_dle_init(struct ll_conn *conn, uint8_t phy)
 	 * Part B, section 4.5.10 we can call ull_dle_update_eff
 	 * for initialisation
 	 */
-	ull_dle_update_eff(conn);
+	(void)ull_dle_update_eff(conn);
 
 	/* Check whether the controller should perform a data length update after
 	 * connection is established
diff --git a/subsys/bluetooth/controller/ll_sw/ull_conn_internal.h b/subsys/bluetooth/controller/ll_sw/ull_conn_internal.h
index 887ec6b129d..1a4cd92ca43 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_conn_internal.h
+++ b/subsys/bluetooth/controller/ll_sw/ull_conn_internal.h
@@ -97,6 +97,8 @@ void ull_dle_max_time_get(struct ll_conn *conn, uint16_t *max_rx_time,
 				    uint16_t *max_tx_time);
 
 uint8_t ull_dle_update_eff(struct ll_conn *conn);
+uint8_t ull_dle_update_eff_tx(struct ll_conn *conn);
+uint8_t ull_dle_update_eff_rx(struct ll_conn *conn);
 
 void ull_dle_local_tx_update(struct ll_conn *conn, uint16_t tx_octets, uint16_t tx_time);
 
diff --git a/subsys/bluetooth/controller/ll_sw/ull_llcp_common.c b/subsys/bluetooth/controller/ll_sw/ull_llcp_common.c
index ba399d74273..fd05c214038 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_llcp_common.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_llcp_common.c
@@ -942,11 +942,12 @@ static void rp_comm_rx_decode(struct ll_conn *conn, struct proc_ctx *ctx, struct
 	case PDU_DATA_LLCTRL_TYPE_LENGTH_REQ:
 		llcp_pdu_decode_length_req(conn, pdu);
 		/* On reception of REQ mark RSP open for local piggy-back
-		 * Pause data tx, to ensure we can later (on RSP tx ack) update DLE without
+		 * Pause data tx, to ensure we can later (on RSP tx ack) update TX DLE without
 		 * conflicting with out-going LL Data PDUs
 		 * See BT Core 5.2 Vol6: B-4.5.10 & B-5.1.9
 		 */
 		llcp_tx_pause_data(conn, LLCP_TX_QUEUE_PAUSE_DATA_DATA_LENGTH);
+		ctx->data.dle.ntf_dle = ull_dle_update_eff_rx(conn);
 		break;
 #endif /* CONFIG_BT_CTLR_DATA_LENGTH */
 #if defined(CONFIG_BT_CTLR_DF_CONN_CTE_RSP)
@@ -1276,8 +1277,9 @@ static void rp_comm_st_wait_tx_ack(struct ll_conn *conn, struct proc_ctx *ctx, u
 #if defined(CONFIG_BT_CTLR_DATA_LENGTH)
 		case PROC_DATA_LENGTH_UPDATE: {
 			/* Apply changes in data lengths/times */
-			uint8_t dle_changed = ull_dle_update_eff(conn);
+			uint8_t dle_changed = ull_dle_update_eff_tx(conn);
 
+			dle_changed |= ctx->data.dle.ntf_dle;
 			llcp_tx_resume_data(conn, LLCP_TX_QUEUE_PAUSE_DATA_DATA_LENGTH);
 
 			if (dle_changed && !llcp_ntf_alloc_is_available()) {
diff --git a/subsys/bluetooth/controller/ll_sw/ull_llcp_internal.h b/subsys/bluetooth/controller/ll_sw/ull_llcp_internal.h
index 707d7b7f0ac..1ec7c70432e 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_llcp_internal.h
+++ b/subsys/bluetooth/controller/ll_sw/ull_llcp_internal.h
@@ -197,6 +197,12 @@ struct proc_ctx {
 		} pu;
 #endif /* CONFIG_BT_CTLR_PHY */
 
+#if defined(CONFIG_BT_CTLR_DATA_LENGTH)
+		struct {
+			uint8_t ntf_dle;
+		} dle;
+#endif
+
 		/* Connection Update & Connection Parameter Request */
 		struct {
 			uint8_t error;