diff --git a/POS/src/components/invoices/InvoiceManagement.vue b/POS/src/components/invoices/InvoiceManagement.vue
index 573eaa3c3..ed313071a 100644
--- a/POS/src/components/invoices/InvoiceManagement.vue
+++ b/POS/src/components/invoices/InvoiceManagement.vue
@@ -1032,6 +1032,7 @@ import { DEFAULT_CURRENCY, formatCurrency as formatCurrencyUtil } from "@/utils/
 import { getInvoiceStatusColor } from "@/utils/invoice";
 import { useFormatters } from "@/composables/useFormatters";
 import { useToast } from "@/composables/useToast";
+import { useShift } from "@/composables/useShift";
 import { Button, call, LoadingIndicator } from "frappe-ui";
 import { computed, onMounted, ref, watch } from "vue";
 import { isOffline } from "@/utils/offline/offlineState";
@@ -1045,6 +1046,7 @@ import { logger } from "@/utils/logger";
 
 const log = logger.create("InvoiceManagement");
 const { showSuccess, showError } = useToast();
+const { currentShift } = useShift();
 const { formatDate, formatDateTime, formatTime } = useFormatters();
 
 const props = defineProps({
@@ -1405,6 +1407,7 @@ async function handlePaymentCompleted(paymentData) {
 		await call("pos_next.api.partial_payments.add_payment_to_partial_invoice", {
 			invoice_name: selectedInvoice.value.name,
 			payments: paymentData.payments,
+			pos_opening_shift: currentShift.value?.name,
 		});
 
 		showSuccess(__("Payment added successfully"));
diff --git a/POS/src/components/partials/PartialPayments.vue b/POS/src/components/partials/PartialPayments.vue
index 700731279..76f9dd143 100644
--- a/POS/src/components/partials/PartialPayments.vue
+++ b/POS/src/components/partials/PartialPayments.vue
@@ -345,6 +345,7 @@ import PaymentDialog from "@/components/sale/PaymentDialog.vue";
 import { usePOSSettingsStore } from "@/stores/posSettings";
 import { useToast } from "@/composables/useToast";
 import { useFormatters } from "@/composables/useFormatters";
+import { useShift } from "@/composables/useShift";
 import { Button, call } from "frappe-ui";
 import { onMounted, ref, watch } from "vue";
 
@@ -363,6 +364,8 @@ const props = defineProps({
 
 const emit = defineEmits(["update:modelValue"]);
 
+const { currentShift } = useShift();
+
 const show = ref(props.modelValue);
 const loading = ref(false);
 const invoices = ref([]);
@@ -455,6 +458,7 @@ async function handlePaymentCompleted(paymentData) {
 		const result = await call("pos_next.api.partial_payments.add_payment_to_partial_invoice", {
 			invoice_name: selectedInvoice.value.name,
 			payments: paymentData.payments,
+			pos_opening_shift: currentShift.value?.name,
 		});
 
 		console.log("[PartialPayments] API response:", result);
diff --git a/pos_next/api/partial_payments.py b/pos_next/api/partial_payments.py
index 7494535d2..67e8a4308 100644
--- a/pos_next/api/partial_payments.py
+++ b/pos_next/api/partial_payments.py
@@ -346,6 +346,7 @@ def create_payment_entry(
 	reference_no: Optional[str] = None,
 	remarks: Optional[str] = None,
 	posting_date: Optional[str] = None,
+	pos_opening_shift: Optional[str] = None,
 ) -> str:
 	"""
 	Create a proper Payment Entry that updates Payment Ledger.
@@ -450,6 +451,10 @@ def create_payment_entry(
 
 		if reference_no:
 			pe.reference_no = str(reference_no)[:140]
+		elif pos_opening_shift:
+			# Tag with the opening shift name so POS shift closing can find
+			# this payment entry during reconciliation.
+			pe.reference_no = str(pos_opening_shift)[:140]
 		else:
 			pe.reference_no = f"POS-{invoice_name}"
 
@@ -700,7 +705,9 @@ def get_partial_payment_details(invoice_name: str) -> Dict:
 
 
 @frappe.whitelist()
-def add_payment_to_partial_invoice(invoice_name: str, payments) -> Dict:
+def add_payment_to_partial_invoice(
+	invoice_name: str, payments, pos_opening_shift: str = None
+) -> Dict:
 	"""
 	Add payments to a partially paid invoice via Payment Entry.
 
@@ -799,6 +806,7 @@ def add_payment_to_partial_invoice(invoice_name: str, payments) -> Dict:
 				payment_account=payment_account,
 				reference_no=reference_no,
 				remarks=f"POS Payment - {mode_of_payment}",
+				pos_opening_shift=pos_opening_shift,
 			)
 
 			payment_entries_created.append(pe_name)