diff --git a/ui/src/lib/inbox.test.ts b/ui/src/lib/inbox.test.ts
index 784e38cb..bbdf5cba 100644
--- a/ui/src/lib/inbox.test.ts
+++ b/ui/src/lib/inbox.test.ts
@@ -319,6 +319,21 @@ describe("inbox helpers", () => {
     });
   });
 
+  it("excludes read mine issues from the inbox badge count", () => {
+    const result = computeInboxBadgeData({
+      approvals: [],
+      joinRequests: [],
+      dashboard,
+      heartbeatRuns: [],
+      mineIssues: [makeIssue("1", false), makeIssue("2", false), makeIssue("3", true)],
+      dismissed: new Set<string>(),
+    });
+
+    expect(result.mineIssues).toBe(1);
+    // inbox = mineIssues(1) + agent-error alert(1) + budget alert(1)
+    expect(result.inbox).toBe(3);
+  });
+
   it("keeps read issues in the touched list but excludes them from unread counts", () => {
     const issues = [makeIssue("1", true), makeIssue("2", false)];
 
diff --git a/ui/src/lib/inbox.ts b/ui/src/lib/inbox.ts
index 9f26e998..03698cfc 100644
--- a/ui/src/lib/inbox.ts
+++ b/ui/src/lib/inbox.ts
@@ -362,7 +362,7 @@ export function computeInboxBadgeData({
   const visibleJoinRequests = joinRequests.filter(
     (jr) => !dismissed.has(`join:${jr.id}`),
   ).length;
-  const visibleMineIssues = mineIssues.length;
+  const visibleMineIssues = mineIssues.filter((issue) => issue.isUnreadForMe).length;
   const agentErrorCount = dashboard?.agents.error ?? 0;
   const monthBudgetCents = dashboard?.costs.monthBudgetCents ?? 0;
   const monthUtilizationPercent = dashboard?.costs.monthUtilizationPercent ?? 0;