diff --git a/addons/account/account_invoice.py b/addons/account/account_invoice.py
index 07a6c70d1bb..5b018bdb8d4 100644
--- a/addons/account/account_invoice.py
+++ b/addons/account/account_invoice.py
@@ -1301,7 +1301,7 @@ class account_invoice_line(models.Model):
     @api.multi
     def product_id_change(self, product, uom_id, qty=0, name='', type='out_invoice',
             partner_id=False, fposition_id=False, price_unit=False, currency_id=False,
-            company_id=None):
+            company_id=None, date_invoice=None):
         context = self._context
         company_id = company_id if company_id is not None else context.get('company_id', False)
         self = self.with_context(company_id=company_id, force_company=company_id)
@@ -1359,7 +1359,7 @@ class account_invoice_line(models.Model):
             if company.currency_id != currency:
                 if type in ('in_invoice', 'in_refund'):
                     values['price_unit'] = product.standard_price
-                values['price_unit'] = values['price_unit'] * currency.rate
+                values['price_unit'] = values['price_unit'] * currency.with_context(dict(context or {}, date=date_invoice)).rate
 
             if values['uos_id'] and values['uos_id'] != product.uom_id.id:
                 values['price_unit'] = self.env['product.uom']._compute_price(
@@ -1369,14 +1369,14 @@ class account_invoice_line(models.Model):
 
     @api.multi
     def uos_id_change(self, product, uom, qty=0, name='', type='out_invoice', partner_id=False,
-            fposition_id=False, price_unit=False, currency_id=False, company_id=None):
+            fposition_id=False, price_unit=False, currency_id=False, company_id=None, date_invoice=None):
         context = self._context
         company_id = company_id if company_id != None else context.get('company_id', False)
         self = self.with_context(company_id=company_id)
 
         result = self.product_id_change(
             product, uom, qty, name, type, partner_id, fposition_id, price_unit,
-            currency_id, company_id=company_id,
+            currency_id, company_id=company_id, date_invoice=date_invoice
         )
         warning = {}
         if not uom:
@@ -1451,7 +1451,7 @@ class account_invoice_line(models.Model):
     # Set the tax field according to the account and the fiscal position
     #
     @api.multi
-    def onchange_account_id(self, product_id, partner_id, inv_type, fposition_id, account_id):
+    def onchange_account_id(self, product_id, partner_id, inv_type, fposition_id, account_id, date_invoice=None):
         if not account_id:
             return {}
         unique_tax_ids = []
@@ -1461,7 +1461,7 @@ class account_invoice_line(models.Model):
             unique_tax_ids = fpos.map_tax(account.tax_ids).ids
         else:
             product_change_result = self.product_id_change(product_id, False, type=inv_type,
-                partner_id=partner_id, fposition_id=fposition_id, company_id=account.company_id.id)
+                partner_id=partner_id, fposition_id=fposition_id, company_id=account.company_id.id, date_invoice=date_invoice)
             if 'invoice_line_tax_id' in product_change_result.get('value', {}):
                 unique_tax_ids = product_change_result['value']['invoice_line_tax_id']
         return {'value': {'invoice_line_tax_id': unique_tax_ids}}
diff --git a/addons/account/account_invoice_view.xml b/addons/account/account_invoice_view.xml
index 6c9834a0cb1..b6776556d53 100644
--- a/addons/account/account_invoice_view.xml
+++ b/addons/account/account_invoice_view.xml
@@ -60,18 +60,18 @@
                     <group>
                         <group>
                             <field name="product_id"
-                                on_change="product_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, context)" context="{'partner_id': parent.partner_id}"/>
+                                on_change="product_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, parent.date_invoice, context)" context="{'partner_id': parent.partner_id}"/>
                             <label for="quantity"/>
                             <div>
                                 <field name="quantity" class="oe_inline"/>
                                 <field name="uos_id" class="oe_inline" groups="product.group_uom"
-                                  on_change="uos_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, context)"/>
+                                  on_change="uos_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, parent.date_invoice, context)"/>
                             </div>
                             <field name="price_unit"/>
                             <field name="discount" groups="sale.group_discount_per_so_line"/>
                         </group>
                         <group>
-                            <field domain="[('company_id', '=', parent.company_id), ('journal_id', '=', parent.journal_id), ('type', '&lt;&gt;', 'view')]" name="account_id" on_change="onchange_account_id(product_id, parent.partner_id, parent.type, parent.fiscal_position,account_id)" groups="account.group_account_user"/>
+                            <field domain="[('company_id', '=', parent.company_id), ('journal_id', '=', parent.journal_id), ('type', '&lt;&gt;', 'view')]" name="account_id" on_change="onchange_account_id(product_id, parent.partner_id, parent.type, parent.fiscal_position,account_id, parent.date_invoice)" groups="account.group_account_user"/>
                             <field name="invoice_line_tax_id" context="{'type':parent.get('type')}" domain="[('parent_id','=',False),('company_id', '=', parent.company_id)]" widget="many2many_tags"/>
                             <field domain="[('type','&lt;&gt;','view'), ('company_id', '=', parent.company_id)], ('state','not in',('close','cancelled'))]" name="account_analytic_id" groups="analytic.group_analytic_accounting"/>
                             <field name="company_id" groups="base.group_multi_company" readonly="1"/>
@@ -209,17 +209,17 @@
                                 <tree string="Invoice lines" editable="bottom">
                                     <field name="sequence" widget="handle" />
                                     <field name="product_id"
-                                        on_change="product_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, context)" context="{'partner_id': parent.partner_id}"/>
+                                        on_change="product_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, parent.date_invoice, context)" context="{'partner_id': parent.partner_id}"/>
                                     <field name="name"/>
                                     <field name="company_id" invisible="1"/>
                                     <field name="account_id" groups="account.group_account_user"
                                         domain="[('company_id', '=', parent.company_id), ('journal_id', '=', parent.journal_id), ('type', '=', 'other')]"
-                                        on_change="onchange_account_id(product_id, parent.partner_id, parent.type, parent.fiscal_position,account_id)"/>
+                                        on_change="onchange_account_id(product_id, parent.partner_id, parent.type, parent.fiscal_position,account_id, parent.date_invoice)"/>
                                     <field name="account_analytic_id" groups="analytic.group_analytic_accounting"
                                         domain="[('type','!=','view'), ('company_id', '=', parent.company_id), ('state','not in',('close','cancelled'))]"/>
                                     <field name="quantity"/>
                                     <field name="uos_id" groups="product.group_uom"
-                                        on_change="uos_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, context)"/>
+                                        on_change="uos_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, parent.date_invoice, context)"/>
                                     <field name="price_unit"/>
                                     <field name="discount" groups="sale.group_discount_per_so_line"/>
                                     <field name="invoice_line_tax_id" widget="many2many_tags" context="{'type':parent.type}"
@@ -367,17 +367,17 @@
                                 <tree string="Invoice Lines" editable="bottom">
                                     <field name="sequence" widget="handle"/>
                                     <field name="product_id"
-                                        on_change="product_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, context)"/>
+                                        on_change="product_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, parent.date_invoice, context)"/>
                                     <field name="name"/>
                                     <field name="company_id" invisible="1"/>
                                     <field name="account_id" groups="account.group_account_user"
                                         domain="[('company_id', '=', parent.company_id), ('journal_id', '=', parent.journal_id), ('type', '=', 'other')]"
-                                        on_change="onchange_account_id(product_id, parent.partner_id, parent.type, parent.fiscal_position,account_id)"/>
+                                        on_change="onchange_account_id(product_id, parent.partner_id, parent.type, parent.fiscal_position,account_id, parent.date_invoice)"/>
                                     <field name="account_analytic_id" groups="analytic.group_analytic_accounting"
                                         domain="[('type','!=','view'), ('company_id', '=', parent.company_id), ('state','not in',('close','cancelled'))]"/>
                                     <field name="quantity"/>
                                     <field name="uos_id" groups="product.group_uom"
-                                        on_change="uos_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, context)"/>
+                                        on_change="uos_id_change(product_id, uos_id, quantity, name, parent.type, parent.partner_id, parent.fiscal_position, price_unit, parent.currency_id, parent.company_id, parent.date_invoice, context)"/>
                                     <field name="price_unit"/>
                                     <field name="discount" groups="sale.group_discount_per_so_line"/>
                                     <field name="invoice_line_tax_id" widget="many2many_tags" context="{'type':parent.type}"
diff --git a/addons/account_analytic_default/account_analytic_default.py b/addons/account_analytic_default/account_analytic_default.py
index 8bf0880cdd7..4978e81e3d3 100644
--- a/addons/account_analytic_default/account_analytic_default.py
+++ b/addons/account_analytic_default/account_analytic_default.py
@@ -76,8 +76,8 @@ class account_invoice_line(osv.osv):
     _inherit = "account.invoice.line"
     _description = "Invoice Line"
 
-    def product_id_change(self, cr, uid, ids, product, uom_id, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, currency_id=False, company_id=None, context=None):
-        res_prod = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom_id, qty, name, type, partner_id, fposition_id, price_unit, currency_id=currency_id, company_id=company_id, context=context)
+    def product_id_change(self, cr, uid, ids, product, uom_id, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, currency_id=False, company_id=None, date_invoice=None, context=None):
+        res_prod = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom_id, qty, name, type, partner_id, fposition_id, price_unit, currency_id=currency_id, company_id=company_id, date_invoice=date_invoice, context=context)
         rec = self.pool.get('account.analytic.default').account_get(cr, uid, product, partner_id, uid, time.strftime('%Y-%m-%d'), company_id=company_id, context=context)
         if rec:
             res_prod['value'].update({'account_analytic_id': rec.analytic_id.id})
diff --git a/addons/account_analytic_plans/account_analytic_plans.py b/addons/account_analytic_plans/account_analytic_plans.py
index 2ddfdebeff2..88f58d317a3 100644
--- a/addons/account_analytic_plans/account_analytic_plans.py
+++ b/addons/account_analytic_plans/account_analytic_plans.py
@@ -303,8 +303,8 @@ class account_invoice_line(osv.osv):
         res ['analytics_id'] = line.analytics_id and line.analytics_id.id or False
         return res
 
-    def product_id_change(self, cr, uid, ids, product, uom_id, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, currency_id=False, company_id=None, context=None):
-        res_prod = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom_id, qty, name, type, partner_id, fposition_id, price_unit, currency_id, company_id=company_id, context=context)
+    def product_id_change(self, cr, uid, ids, product, uom_id, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, currency_id=False, company_id=None, date_invoice=None, context=None):
+        res_prod = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom_id, qty, name, type, partner_id, fposition_id, price_unit, currency_id, company_id=company_id, date_invoice=date_invoice, context=context)
         rec = self.pool.get('account.analytic.default').account_get(cr, uid, product, partner_id, uid, time.strftime('%Y-%m-%d'), context=context)
         if rec and rec.analytics_id:
             res_prod['value'].update({'analytics_id': rec.analytics_id.id})
diff --git a/addons/account_anglo_saxon/invoice.py b/addons/account_anglo_saxon/invoice.py
index 203c1f5773c..c643280de5c 100644
--- a/addons/account_anglo_saxon/invoice.py
+++ b/addons/account_anglo_saxon/invoice.py
@@ -43,9 +43,9 @@ class account_invoice_line(osv.osv):
         return res
 
 
-    def product_id_change(self, cr, uid, ids, product, uom_id, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, currency_id=False, company_id=None, context=None):
+    def product_id_change(self, cr, uid, ids, product, uom_id, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, currency_id=False, company_id=None, date_invoice=None, context=None):
         fiscal_pool = self.pool.get('account.fiscal.position')
-        res = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom_id, qty, name, type, partner_id, fposition_id, price_unit, currency_id, company_id, context)
+        res = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom_id, qty, name, type, partner_id, fposition_id, price_unit, currency_id, company_id, date_invoice, context)
         if not product:
             return res
         if type in ('in_invoice','in_refund'):