diff --git a/src/components/EventDialog.vue b/src/components/EventDialog.vue
index e935f23..95b3d5a 100644
--- a/src/components/EventDialog.vue
+++ b/src/components/EventDialog.vue
@@ -531,6 +531,19 @@ const isRepeatingEdit = computed(
 )
 const showDeleteVariants = computed(() => isRepeatingEdit.value && occurrenceContext.value)
 const isRepeatingBaseEdit = computed(() => isRepeatingEdit.value && !occurrenceContext.value)
+const isLastOccurrence = computed(() => {
+  if (!occurrenceContext.value || !editingEventId.value) return false
+  const event = calendarStore.getEventById(editingEventId.value)
+  if (!event || !event.isRepeating) return false
+
+  // For unlimited events, there is no "last" occurrence
+  if (event.repeatCount === 'unlimited' || recurrenceOccurrences.value === 0) return false
+
+  // For limited events, check if current occurrence index is the last one
+  // occurrenceIndex is 0-based, so the last occurrence has index (totalCount - 1)
+  const totalCount = parseInt(event.repeatCount, 10) || 0
+  return occurrenceContext.value.occurrenceIndex === totalCount - 1
+})
 const formattedOccurrenceShort = computed(() => {
   if (occurrenceContext.value?.occurrenceDate) {
     try {
@@ -741,7 +754,14 @@ const recurrenceSummary = computed(() => {
             <button type="button" class="ec-btn delete-btn" @click="deleteEventOne">
               Delete {{ formattedOccurrenceShort }}
             </button>
-            <button type="button" class="ec-btn delete-btn" @click="deleteEventFrom">Rest</button>
+            <button
+              v-if="!isLastOccurrence"
+              type="button"
+              class="ec-btn delete-btn"
+              @click="deleteEventFrom"
+            >
+              Rest
+            </button>
             <button type="button" class="ec-btn delete-btn" @click="deleteEventAll">All</button>
           </div>
         </template>
diff --git a/src/stores/CalendarStore.js b/src/stores/CalendarStore.js
index a97258e..b6c4af3 100644
--- a/src/stores/CalendarStore.js
+++ b/src/stores/CalendarStore.js
@@ -417,10 +417,17 @@ export const useCalendarStore = defineStore('calendar', {
       const { baseId, occurrenceIndex } = ctx
       const base = this.getEventById(baseId)
       if (!base || !base.isRepeating) return
-      // We want to keep occurrences up to and including the selected one; that becomes new repeatCount.
-      // occurrenceIndex here represents the number of repeats AFTER the base (weekly: 0 = first repeat; monthly: diffMonths)
-      // Total kept occurrences = base (1) + occurrenceIndex
-      const keptTotal = 1 + Math.max(0, occurrenceIndex)
+
+      // Special case: if deleting from the base occurrence (index 0), delete the entire series
+      if (occurrenceIndex === 0) {
+        this.deleteEvent(baseId)
+        return
+      }
+
+      // We want to keep occurrences up to but NOT including the selected one
+      // occurrenceIndex represents the occurrence index including the base (0=base, 1=first repeat, etc.)
+      // To exclude the current occurrence and everything after, we keep only occurrenceIndex total occurrences
+      const keptTotal = occurrenceIndex
       this._terminateRepeatSeriesAtIndex(baseId, keptTotal)
     },