sales tax

public/js/utils/api.js

@@ -139,6 +139,10 @@ const API = {
             const params = new URLSearchParams({ asOfDate, accountingMethod });
             return fetch('/api/accounting/reports/balance-sheet?' + params.toString()).then(r => r.json());
         },
+        getTaxSummary: (startDate, endDate, accountingMethod = 'Accrual') => {
+            const params = new URLSearchParams({ startDate, endDate, accountingMethod });
+            return fetch('/api/accounting/reports/tax-summary?' + params.toString()).then(r => r.json());
+        },
 
         // Phase 2 Lieferung 1 — Sync + Cache-Reads
         syncAccounts: () => fetch('/api/accounting/sync-accounts', { method: 'POST' }).then(r => r.json()),