diff --git a/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/Components/ImportServiceCard.razor b/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/Components/ImportServiceCard.razor
index 2eeb1c81a..f690517de 100644
--- a/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/Components/ImportServiceCard.razor
+++ b/apps/server/AliasVault.Client/Main/Pages/Settings/ImportExport/Components/ImportServiceCard.razor
@@ -1044,11 +1044,15 @@
             IsImporting = true;
             StateHasChanged();
 
-            // Limit file size to 50MB (increased for binary files with attachments)
-            var maxFileSize = 50 * 1024 * 1024;
+            // Limit file size fixed in code to 1024MB.
+            // This is a browser-memory safety ceiling, not a server/infra limit. The file
+            // is parsed entirely client-side and never uploaded. Server upload limits for the
+            // resulting vault sync are controlled separately via the MAX_UPLOAD_SIZE_MB env var.
+            const int maxFileSizeMb = 1024;
+            var maxFileSize = maxFileSizeMb * 1024 * 1024;
             if (e.File.Size > maxFileSize)
             {
-                ImportError = Localizer["ImportErrorFileTooLarge"];
+                ImportError = Localizer["ImportErrorFileTooLarge", maxFileSizeMb];
                 return;
             }
 
diff --git a/apps/server/AliasVault.Client/Resources/Components/Main/Settings/ImportExport/ImportServiceCard.en.resx b/apps/server/AliasVault.Client/Resources/Components/Main/Settings/ImportExport/ImportServiceCard.en.resx
index 07ad8efac..d3d3a0059 100644
--- a/apps/server/AliasVault.Client/Resources/Components/Main/Settings/ImportExport/ImportServiceCard.en.resx
+++ b/apps/server/AliasVault.Client/Resources/Components/Main/Settings/ImportExport/ImportServiceCard.en.resx
@@ -167,8 +167,8 @@
     <comment>Error message when user selects an unsupported file format. {0} is the list of supported extensions</comment>
   </data>
   <data name="ImportErrorFileTooLarge" xml:space="preserve">
-    <value>File size exceeds 10MB limit.</value>
-    <comment>Error message when file is too large</comment>
+    <value>File size exceeds {0}MB limit.</value>
+    <comment>Error message when file is too large. {0} is the maximum allowed size in megabytes</comment>
   </data>
   <data name="EncryptedFilePasswordPrompt" xml:space="preserve">
     <value>This file is encrypted. Please enter the password you used when creating the export.</value>