diff --git a/frontend/src/lib/components/payments/PaymentModal.svelte b/frontend/src/lib/components/payments/PaymentModal.svelte
index c01a3ef..066ccd6 100644
--- a/frontend/src/lib/components/payments/PaymentModal.svelte
+++ b/frontend/src/lib/components/payments/PaymentModal.svelte
@@ -460,6 +460,47 @@
 		}
 	}
 
+	async function saveServiceOverrides(): Promise<void> {
+		// Check if any service has an override that differs from the original price
+		const services = booking.services ?? [];
+		const hasOverrides = services.some((s) => {
+			const override = serviceOverrides[s.service_id];
+			if (!override) return false;
+			const overridePrice = parseFloat(override.price);
+			return !isNaN(overridePrice) && Math.abs(overridePrice - override.originalPrice) > 0.01;
+		});
+
+		if (!hasOverrides) return;
+
+		// Build the request payload
+		const serviceIds = services.map((s) => s.service_id).filter((id): id is string => !!id);
+		const serviceOverridesPayload = services
+			.filter((s) => {
+				const override = serviceOverrides[s.service_id];
+				if (!override) return false;
+				const overridePrice = parseFloat(override.price);
+				return !isNaN(overridePrice) && Math.abs(overridePrice - override.originalPrice) > 0.01;
+			})
+			.map((s) => ({
+				service_id: s.service_id,
+				override_price: parseFloat(serviceOverrides[s.service_id].price)
+			}));
+
+		const res = await apiFetch(`/api/admin/bookings/${booking.id}/services`, {
+			method: 'PUT',
+			headers: { 'Content-Type': 'application/json' },
+			body: JSON.stringify({
+				service_ids: serviceIds,
+				service_overrides: serviceOverridesPayload
+			})
+		});
+
+		if (!res.ok) {
+			const errData = await res.text();
+			throw new Error(extractErrorMessage(errData) || 'Failed to save service overrides');
+		}
+	}
+
 	async function handleCardPayment() {
 		if (isProcessingPaymentSync) return;
 		const finalAmount = cardAmountNum;
@@ -484,6 +525,7 @@
 		error = null;
 
 		try {
+			await saveServiceOverrides();
 			await applyLoyaltyRedemption();
 
 			const response = await apiFetch(`/api/admin/bookings/${booking.id}/payment`, {
@@ -961,6 +1003,7 @@
 
 		let responseStatus = 0;
 		try {
+			await saveServiceOverrides();
 			await applyLoyaltyRedemption();
 
 			// Proactive saved-card (ccof) SCA: run the client-side challenge