diff --git a/dashboard/package.json b/dashboard/package.json
index 13dbf8f..8b1f397 100644
--- a/dashboard/package.json
+++ b/dashboard/package.json
@@ -13,6 +13,7 @@
 	},
 	"dependencies": {
 		"@vueuse/core": "^13.6.0",
+		"@vueuse/router": "^13.6.0",
 		"canvas-confetti": "^1.9.3",
 		"feather-icons": "^4.29.2",
 		"frappe-ui": "^0.1.257",
diff --git a/dashboard/src/components/BookingForm.vue b/dashboard/src/components/BookingForm.vue
index 642dd76..13b0f8a 100644
--- a/dashboard/src/components/BookingForm.vue
+++ b/dashboard/src/components/BookingForm.vue
@@ -217,7 +217,7 @@
 									v-model="couponCode"
 									:placeholder="__('Enter code')"
 									:aria-label="__('Coupon code')"
-									class="flex-1"
+									class="flex-1 uppercase"
 									@keyup.enter="applyCoupon"
 								/>
 								<Button
@@ -404,6 +404,7 @@ import { clearBookingCache } from "@/utils/index";
 import { FormControl, createResource, toast } from "frappe-ui";
 import { computed, nextTick, onMounted, onUnmounted, ref, watch } from "vue";
 import { useRoute, useRouter } from "vue-router";
+import { useRouteQuery } from "@vueuse/router";
 import LucideAlertCircle from "~icons/lucide/alert-circle";
 import LucideCheck from "~icons/lucide/check";
 import LucideCheckCircle from "~icons/lucide/check-circle";
@@ -518,7 +519,8 @@ const activeOfflineCustomFields = computed(() => {
 	return selectedOfflineMethod.value.custom_fields || [];
 });
 
-// Coupon state
+// Coupon state — `appliedCouponQuery` keeps the URL in sync with the applied coupon
+const appliedCouponQuery = useRouteQuery("coupon", null);
 const couponCode = ref("");
 const couponApplied = ref(false);
 const couponError = ref("");
@@ -822,6 +824,13 @@ onMounted(async () => {
 
 		attendees.value = [newAttendee];
 	}
+
+	// Pre-fill and auto-apply coupon from ?coupon= query param
+	const initialCoupon = appliedCouponQuery.value;
+	if (typeof initialCoupon === "string" && initialCoupon.trim() && !couponApplied.value) {
+		couponCode.value = initialCoupon.trim().toUpperCase();
+		await applyCoupon();
+	}
 });
 
 // Ensure existing attendees have proper add-on structure when availableAddOns changes
@@ -962,16 +971,20 @@ function sendOtpForVerification() {
 
 // --- COUPON FUNCTIONS ---
 async function applyCoupon() {
-	if (!couponCode.value.trim()) {
+	const normalizedCode = couponCode.value.trim().toUpperCase();
+	if (!normalizedCode) {
 		couponError.value = __("Please enter a coupon code");
 		return;
 	}
 
+	// Reflect normalized casing back into the input / applied card
+	couponCode.value = normalizedCode;
+
 	couponError.value = "";
 	let result;
 	try {
 		const params = {
-			coupon_code: couponCode.value.trim(),
+			coupon_code: normalizedCode,
 			event: eventId.value,
 		};
 		// Pass user email for guest mode to properly check per-user limits
@@ -1018,6 +1031,8 @@ async function applyCoupon() {
 			};
 			// Info panel shows details - no toast needed
 		}
+
+		appliedCouponQuery.value = normalizedCode;
 	} else {
 		couponApplied.value = false;
 		couponData.value = null;
@@ -1030,6 +1045,7 @@ function removeCoupon() {
 	couponApplied.value = false;
 	couponData.value = null;
 	couponError.value = "";
+	appliedCouponQuery.value = null;
 }
 
 // --- FORM VALIDATION ---
diff --git a/dashboard/yarn.lock b/dashboard/yarn.lock
index 6f6dc30..7e09659 100644
--- a/dashboard/yarn.lock
+++ b/dashboard/yarn.lock
@@ -1147,6 +1147,13 @@
   resolved "https://registry.npmjs.org/@vueuse/metadata/-/metadata-13.6.0.tgz"
   integrity sha512-rnIH7JvU7NjrpexTsl2Iwv0V0yAx9cw7+clymjKuLSXG0QMcLD0LDgdNmXic+qL0SGvgSVPEpM9IDO/wqo1vkQ==
 
+"@vueuse/router@^13.6.0":
+  version "13.9.0"
+  resolved "https://registry.yarnpkg.com/@vueuse/router/-/router-13.9.0.tgz#44235e6732a30b53d1c8e2ef13ce783fdd189ca6"
+  integrity sha512-7AYay8Pv/0fC4D0eygbIyZuLyVs+9D7dsnO5D8aqat9qcOz91v/XFWR667WE1+p+OkU0ib+FjQUdnTVBNoIw8g==
+  dependencies:
+    "@vueuse/shared" "13.9.0"
+
 "@vueuse/shared@10.11.1", "@vueuse/shared@^10.5.0":
   version "10.11.1"
   resolved "https://registry.npmjs.org/@vueuse/shared/-/shared-10.11.1.tgz"
@@ -1166,6 +1173,11 @@
   resolved "https://registry.npmjs.org/@vueuse/shared/-/shared-13.6.0.tgz"
   integrity sha512-pDykCSoS2T3fsQrYqf9SyF0QXWHmcGPQ+qiOVjlYSzlWd9dgppB2bFSM1GgKKkt7uzn0BBMV3IbJsUfHG2+BCg==
 
+"@vueuse/shared@13.9.0":
+  version "13.9.0"
+  resolved "https://registry.yarnpkg.com/@vueuse/shared/-/shared-13.9.0.tgz#7168b4ed647e625b05eb4e7e80fe8aabd00e3923"
+  integrity sha512-e89uuTLMh0U5cZ9iDpEI2senqPGfbPRTHM/0AaQkcxnpqjkZqDYP8rpfm7edOz8s+pOCOROEy1PIveSW8+fL5g==
+
 acorn@^8.14.0, acorn@^8.14.1, acorn@^8.15.0:
   version "8.15.0"
   resolved "https://registry.npmjs.org/acorn/-/acorn-8.15.0.tgz"