diff --git a/account_financial_report_qweb/report/aged_partner_balance.py b/account_financial_report_qweb/report/aged_partner_balance.py
index 190dea53..91bb88c0 100644
--- a/account_financial_report_qweb/report/aged_partner_balance.py
+++ b/account_financial_report_qweb/report/aged_partner_balance.py
@@ -197,6 +197,16 @@ class AgedPartnerBalanceReportCompute(models.TransientModel):
         return self.env['report'].get_action(records=self,
                                              report_name=report_name)
 
+    def _prepare_report_open_items(self):
+        self.ensure_one()
+        return {
+            'date_at': self.date_at,
+            'only_posted_moves': self.only_posted_moves,
+            'company_id': self.company_id.id,
+            'filter_account_ids': [(6, 0, self.filter_account_ids.ids)],
+            'filter_partner_ids': [(6, 0, self.filter_partner_ids.ids)],
+        }
+
     @api.multi
     def compute_data_for_report(self):
         self.ensure_one()
@@ -204,13 +214,7 @@ class AgedPartnerBalanceReportCompute(models.TransientModel):
         # The data of Aged Partner Balance Report
         # are based on Open Items Report data.
         model = self.env['report_open_items_qweb']
-        self.open_items_id = model.create({
-            'date_at': self.date_at,
-            'only_posted_moves': self.only_posted_moves,
-            'company_id': self.company_id.id,
-            'filter_account_ids': [(6, 0, self.filter_account_ids.ids)],
-            'filter_partner_ids': [(6, 0, self.filter_partner_ids.ids)],
-        })
+        self.open_items_id = model.create(self._prepare_report_open_items())
         self.open_items_id.compute_data_for_report()
 
         # Compute report data
diff --git a/account_financial_report_qweb/report/trial_balance.py b/account_financial_report_qweb/report/trial_balance.py
index 788ae71b..ecdc7637 100644
--- a/account_financial_report_qweb/report/trial_balance.py
+++ b/account_financial_report_qweb/report/trial_balance.py
@@ -133,14 +133,9 @@ class TrialBalanceReportCompute(models.TransientModel):
         return self.env['report'].get_action(records=self,
                                              report_name=report_name)
 
-    @api.multi
-    def compute_data_for_report(self):
+    def _prepare_report_general_ledger(self):
         self.ensure_one()
-        # Compute General Ledger Report Data.
-        # The data of Trial Balance Report
-        # are based on General Ledger Report data.
-        model = self.env['report_general_ledger_qweb']
-        self.general_ledger_id = model.create({
+        return {
             'date_from': self.date_from,
             'date_to': self.date_to,
             'only_posted_moves': self.only_posted_moves,
@@ -149,7 +144,18 @@ class TrialBalanceReportCompute(models.TransientModel):
             'filter_account_ids': [(6, 0, self.filter_account_ids.ids)],
             'filter_partner_ids': [(6, 0, self.filter_partner_ids.ids)],
             'fy_start_date': self.fy_start_date,
-        })
+        }
+
+    @api.multi
+    def compute_data_for_report(self):
+        self.ensure_one()
+        # Compute General Ledger Report Data.
+        # The data of Trial Balance Report
+        # are based on General Ledger Report data.
+        model = self.env['report_general_ledger_qweb']
+        self.general_ledger_id = model.create(
+            self._prepare_report_general_ledger()
+        )
         self.general_ledger_id.compute_data_for_report()
 
         # Compute report data
diff --git a/account_financial_report_qweb/wizard/aged_partner_balance_wizard.py b/account_financial_report_qweb/wizard/aged_partner_balance_wizard.py
index 3dfd7852..1a6fed82 100644
--- a/account_financial_report_qweb/wizard/aged_partner_balance_wizard.py
+++ b/account_financial_report_qweb/wizard/aged_partner_balance_wizard.py
@@ -63,15 +63,19 @@ class AgedPartnerBalance(models.TransientModel):
         self.ensure_one()
         return self._export(xlsx_report=True)
 
-    def _export(self, xlsx_report=False):
-        """Default export is PDF."""
-        model = self.env['report_aged_partner_balance_qweb']
-        report = model.create({
+    def _prepare_report_aged_partner_balance(self):
+        self.ensure_one()
+        return {
             'date_at': self.date_at,
             'only_posted_moves': self.target_move == 'posted',
             'company_id': self.company_id.id,
             'filter_account_ids': [(6, 0, self.account_ids.ids)],
             'filter_partner_ids': [(6, 0, self.partner_ids.ids)],
             'show_move_line_details': self.show_move_line_details,
-        })
+        }
+
+    def _export(self, xlsx_report=False):
+        """Default export is PDF."""
+        model = self.env['report_aged_partner_balance_qweb']
+        report = model.create(self._prepare_report_aged_partner_balance())
         return report.print_report(xlsx_report)
diff --git a/account_financial_report_qweb/wizard/general_ledger_wizard.py b/account_financial_report_qweb/wizard/general_ledger_wizard.py
index 3a2cda32..ac9c4e4b 100644
--- a/account_financial_report_qweb/wizard/general_ledger_wizard.py
+++ b/account_financial_report_qweb/wizard/general_ledger_wizard.py
@@ -98,10 +98,9 @@ class GeneralLedgerReportWizard(models.TransientModel):
         self.ensure_one()
         return self._export(xlsx_report=True)
 
-    def _export(self, xlsx_report=False):
-        """Default export is PDF."""
-        model = self.env['report_general_ledger_qweb']
-        report = model.create({
+    def _prepare_report_general_ledger(self):
+        self.ensure_one()
+        return {
             'date_from': self.date_from,
             'date_to': self.date_to,
             'only_posted_moves': self.target_move == 'posted',
@@ -112,5 +111,10 @@ class GeneralLedgerReportWizard(models.TransientModel):
             'filter_cost_center_ids': [(6, 0, self.cost_center_ids.ids)],
             'centralize': self.centralize,
             'fy_start_date': self.fy_start_date,
-        })
+        }
+
+    def _export(self, xlsx_report=False):
+        """Default export is PDF."""
+        model = self.env['report_general_ledger_qweb']
+        report = model.create(self._prepare_report_general_ledger())
         return report.print_report(xlsx_report)
diff --git a/account_financial_report_qweb/wizard/open_items_wizard.py b/account_financial_report_qweb/wizard/open_items_wizard.py
index 2f921a8c..2d425433 100644
--- a/account_financial_report_qweb/wizard/open_items_wizard.py
+++ b/account_financial_report_qweb/wizard/open_items_wizard.py
@@ -69,15 +69,19 @@ class OpenItemsReportWizard(models.TransientModel):
         self.ensure_one()
         return self._export(xlsx_report=True)
 
-    def _export(self, xlsx_report=False):
-        """Default export is PDF."""
-        model = self.env['report_open_items_qweb']
-        report = model.create({
+    def _prepare_report_open_items(self):
+        self.ensure_one()
+        return {
             'date_at': self.date_at,
             'only_posted_moves': self.target_move == 'posted',
             'hide_account_balance_at_0': self.hide_account_balance_at_0,
             'company_id': self.company_id.id,
             'filter_account_ids': [(6, 0, self.account_ids.ids)],
             'filter_partner_ids': [(6, 0, self.partner_ids.ids)],
-        })
+        }
+
+    def _export(self, xlsx_report=False):
+        """Default export is PDF."""
+        model = self.env['report_open_items_qweb']
+        report = model.create(self._prepare_report_open_items())
         return report.print_report(xlsx_report)
diff --git a/account_financial_report_qweb/wizard/trial_balance_wizard.py b/account_financial_report_qweb/wizard/trial_balance_wizard.py
index 0c1e7dae..dca96f66 100644
--- a/account_financial_report_qweb/wizard/trial_balance_wizard.py
+++ b/account_financial_report_qweb/wizard/trial_balance_wizard.py
@@ -92,10 +92,9 @@ class TrialBalanceReportWizard(models.TransientModel):
         self.ensure_one()
         return self._export(xlsx_report=True)
 
-    def _export(self, xlsx_report=False):
-        """Default export is PDF."""
-        model = self.env['report_trial_balance_qweb']
-        report = model.create({
+    def _prepare_report_trial_balance(self):
+        self.ensure_one()
+        return {
             'date_from': self.date_from,
             'date_to': self.date_to,
             'only_posted_moves': self.target_move == 'posted',
@@ -105,5 +104,10 @@ class TrialBalanceReportWizard(models.TransientModel):
             'filter_partner_ids': [(6, 0, self.partner_ids.ids)],
             'fy_start_date': self.fy_start_date,
             'show_partner_details': self.show_partner_details,
-        })
+        }
+
+    def _export(self, xlsx_report=False):
+        """Default export is PDF."""
+        model = self.env['report_trial_balance_qweb']
+        report = model.create(self._prepare_report_trial_balance())
         return report.print_report(xlsx_report)