diff --git a/public/js/views/accounting-view.js b/public/js/views/accounting-view.js
index fed027b..3bb89d6 100644
--- a/public/js/views/accounting-view.js
+++ b/public/js/views/accounting-view.js
@@ -26,6 +26,7 @@ let plAccountingMethod = 'Accrual';
 let bsAsOfDate = null;
 let bsAccountingMethod = 'Accrual';
 
+let registerLoadSeq = 0;
 // ────────────────────────────────────────────────────────────────────
 // Helpers
 // ────────────────────────────────────────────────────────────────────
@@ -252,11 +253,16 @@ export async function loadRegister() {
     const slot = 'accounting-register-table';
     showLoading(slot, 'Loading register from QBO…');
 
+    const mySeq = ++registerLoadSeq;   // ← merken, welcher Call das ist
+
     try {
         const result = await window.API.accounting.getRegister(
             registerAccountId, registerStartDate, registerEndDate
         );
 
+        // Wenn inzwischen ein neuerer Call gestartet wurde → Result verwerfen
+        if (mySeq !== registerLoadSeq) return;
+
         if (result.error) {
             showError(slot, result.error);
             return;
@@ -264,6 +270,7 @@ export async function loadRegister() {
 
         renderRegisterTable(result);
     } catch (err) {
+        if (mySeq !== registerLoadSeq) return;
         console.error('Register load failed:', err);
         showError(slot, err.message || 'Failed to load register');
     }
diff --git a/src/services/accounting-service.js b/src/services/accounting-service.js
index b8830ae..ab38574 100644
--- a/src/services/accounting-service.js
+++ b/src/services/accounting-service.js
@@ -122,7 +122,7 @@ async function getRegister({ accountId, startDate, endDate }) {
     if (startDate) params.set('start_date', startDate);
     if (endDate)   params.set('end_date', endDate);
     // account filter: TransactionList akzeptiert eine kommaseparierte Liste
-    params.set('account', String(accountId));
+    params.set('source_account', String(accountId));
     params.set('minorversion', QBO_MINOR_VERSION);
 
     const url = `${baseUrl}/v3/company/${companyId}/reports/TransactionList?${params.toString()}`;