diff --git a/VERSION b/VERSION
index 921648e..8056afa 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.135
\ No newline at end of file
+1.3.136
\ No newline at end of file
diff --git a/app/services/economic_service.py b/app/services/economic_service.py
index 5ebbbbf..0cf3d7e 100644
--- a/app/services/economic_service.py
+++ b/app/services/economic_service.py
@@ -450,9 +450,18 @@ class EconomicService:
             List of invoice records with lines from the last year
         """
         try:
-            # Calculate date 1 year ago
-            one_year_ago = (datetime.now() - timedelta(days=365)).strftime('%Y-%m-%d')
-            logger.info(f"📅 Fetching invoices from {one_year_ago} onwards (1 year filter)")
+            # Calculate first day of the month 12 months ago
+            now = datetime.now()
+            # Go back 12 months
+            if now.month > 12:
+                start_month = now.month - 12
+                start_year = now.year
+            else:
+                start_month = 12 - (12 - now.month)
+                start_year = now.year - 1
+            
+            start_date = datetime(start_year, start_month, 1).strftime('%Y-%m-%d')
+            logger.info(f"📅 Fetching invoices from {start_date} onwards (12 months from 1st of month)")
             
             async with aiohttp.ClientSession() as session:
                 # Try multiple endpoints to find invoices
@@ -483,7 +492,7 @@ class EconomicService:
                                 params={
                                     "pagesize": 1000, 
                                     "skippages": page,
-                                    "filter": f"date$gte:{one_year_ago}"
+                                    "filter": f"date$gte:{start_date}"
                                 },
                                 headers=self._get_headers()
                             ) as response: