diff --git a/htdocs/install/mysql/data/llx_const.sql b/htdocs/install/mysql/data/llx_const.sql
index ced4a0d8427..99da23f53a5 100644
--- a/htdocs/install/mysql/data/llx_const.sql
+++ b/htdocs/install/mysql/data/llx_const.sql
@@ -97,3 +97,9 @@ insert into llx_const (name, value, type, visible, entity) VALUES ('CONTRACT_ADD
 insert into llx_const (name, value, type, visible, entity) VALUES ('USERGROUP_ADDON_PDF_ODT_PATH', 'DOL_DATA_ROOT/doctemplates/usergroups', 'chaine', 0, 1);
 insert into llx_const (name, value, type, visible, entity) VALUES ('USER_ADDON_PDF_ODT_PATH',      'DOL_DATA_ROOT/doctemplates/users', 'chaine', 0, 1);
 
+
+--
+-- PRODUCTS
+--
+INSERT INTO llx_const (name, entity, value, type, visible) VALUES ('PRODUCT_PRICE_BASE_TYPE', 0, 'HT', 'string', 0);
+
diff --git a/htdocs/install/mysql/migration/12.0.0-13.0.0.sql b/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
index 834cc178979..14c176b1c20 100644
--- a/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
+++ b/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
@@ -46,4 +46,7 @@ UPDATE llx_establishment SET ref = rowid WHERE ref IS NULL;
 ALTER TABLE llx_establishment MODIFY COLUMN ref varchar(30) NOT NULL;
 ALTER TABLE llx_establishment MODIFY COLUMN name varchar(128);
 
+INSERT INTO llx_const (name, entity, value, type, visible) VALUES ('PRODUCT_PRICE_BASE_TYPE', 0, 'HT', 'string', 0);
+
 ALTER TABLE llx_subscription MODIFY COLUMN datef DATETIME;
+
diff --git a/htdocs/langs/en_US/products.lang b/htdocs/langs/en_US/products.lang
index fb4379f5e1a..a1bbc45f970 100644
--- a/htdocs/langs/en_US/products.lang
+++ b/htdocs/langs/en_US/products.lang
@@ -106,6 +106,7 @@ NoteNotVisibleOnBill=Note (not visible on invoices, proposals...)
 ServiceLimitedDuration=If product is a service with limited duration:
 MultiPricesAbility=Multiple price segments per product/service (each customer is in one price segment)
 MultiPricesNumPrices=Number of prices
+DefaultPriceType=Base of prices per default (with versus without tax) when adding new sale prices
 AssociatedProductsAbility=Activate virtual products (kits)
 AssociatedProducts=Virtual products
 AssociatedProductsNumber=Number of products composing this virtual product
diff --git a/htdocs/langs/fr_FR/products.lang b/htdocs/langs/fr_FR/products.lang
index 9219eb2d1cd..c4b720bb7be 100644
--- a/htdocs/langs/fr_FR/products.lang
+++ b/htdocs/langs/fr_FR/products.lang
@@ -106,6 +106,7 @@ NoteNotVisibleOnBill=Note (non visible sur les factures, propals...)
 ServiceLimitedDuration=Si produit de type service à durée limitée :
 MultiPricesAbility=Plusieurs niveaux de prix par produit/service (chaque client est dans un et un seul niveau)
 MultiPricesNumPrices=Nombre de prix
+DefaultPriceType=Type de prix par default
 AssociatedProductsAbility=Pris en charge des produits virtuels (kits)
 AssociatedProducts=Produits virtuels
 AssociatedProductsNumber=Nbre de sous-produits constituant ce produit virtuel
diff --git a/htdocs/product/admin/product.php b/htdocs/product/admin/product.php
index 5427b6620dc..f0095059053 100644
--- a/htdocs/product/admin/product.php
+++ b/htdocs/product/admin/product.php
@@ -124,6 +124,9 @@ if ($action == 'other')
 		}
 	}
 
+	$value = GETPOST('price_base_type', 'alpha');
+	$res = dolibarr_set_const($db, "PRODUCT_PRICE_BASE_TYPE", $value, 'chaine', 0, '', $conf->entity);
+
 	$value = GETPOST('PRODUIT_SOUSPRODUITS', 'alpha');
 	$res = dolibarr_set_const($db, "PRODUIT_SOUSPRODUITS", $value, 'chaine', 0, '', $conf->entity);
 
@@ -571,6 +574,14 @@ if (!empty($conf->global->PRODUIT_MULTIPRICES) || !empty($conf->global->PRODUIT_
 	print '</tr>';
 }
 
+//Default product price base type
+print '<tr class="oddeven">';
+print '<td>'.$langs->trans("DefaultPriceType").'</td>';
+print '<td width="60" class="right">';
+print $form->selectPriceBaseType($conf->global->PRODUCT_PRICE_BASE_TYPE, "price_base_type");
+print '</td>';
+print '</tr>';
+
 // sousproduits activation/desactivation
 
 print '<tr class="oddeven">';
diff --git a/htdocs/product/card.php b/htdocs/product/card.php
index 8ab7d6be41a..385e656458a 100644
--- a/htdocs/product/card.php
+++ b/htdocs/product/card.php
@@ -1176,7 +1176,7 @@ if (is_object($objcanvas) && $objcanvas->displayCanvasExists($action))
             // Price
             print '<tr><td class="titlefieldcreate">'.$langs->trans("SellingPrice").'</td>';
             print '<td><input name="price" class="maxwidth50" value="'.$object->price.'">';
-            print $form->selectPriceBaseType($object->price_base_type, "price_base_type");
+            print $form->selectPriceBaseType($conf->global->PRODUCT_PRICE_BASE_TYPE, "price_base_type");
             print '</td></tr>';
 
             // Min price